com.dslplatform.json.processor.Analysis Maven / Gradle / Ivy
package com.dslplatform.json.processor;
import com.dslplatform.json.*;
import javax.annotation.processing.Messager;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.*;
import javax.lang.model.type.ArrayType;
import javax.lang.model.type.DeclaredType;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import javax.lang.model.util.ElementFilter;
import javax.lang.model.util.Elements;
import javax.lang.model.util.Types;
import javax.tools.Diagnostic;
import java.lang.reflect.Type;
import java.util.*;
public class Analysis {
private final AnnotationUsage annotationUsage;
private final LogLevel logLevel;
private final UnknownTypes unknownTypes;
private final boolean onlyBasicFeatures;
private final boolean includeFields;
private final boolean includeBeanMethods;
private final boolean includeExactMethods;
private final Elements elements;
private final Types types;
private final Messager messager;
public final TypeElement compiledJsonElement;
public final DeclaredType compiledJsonType;
public final TypeElement attributeElement;
public final DeclaredType attributeType;
public final TypeElement converterElement;
public final DeclaredType converterType;
private final TypeSupport typeSupport;
private final Set alternativeIgnore;
private final Map>> alternativeNonNullable;
private final Map alternativeAlias;
private final Map>> alternativeMandatory;
private final Set alternativeCreators;
private final Map alternativeIndex;
private final TypeMirror baseListType;
private final TypeMirror baseSetType;
private final TypeMirror baseMapType;
public static class AnnotationMapping {
public final String name;
public final T value;
public AnnotationMapping(String name, @Nullable T value) {
this.name = name;
this.value = value;
}
}
private final Map structs = new LinkedHashMap();
private boolean hasError;
public boolean hasError() {
return hasError;
}
public Analysis(ProcessingEnvironment processingEnv, AnnotationUsage annotationUsage, LogLevel logLevel, TypeSupport typeSupport) {
this(processingEnv, annotationUsage, logLevel, typeSupport, null, null, null, null, null, null, UnknownTypes.ERROR, false, true, true, true);
}
public Analysis(
ProcessingEnvironment processingEnv,
AnnotationUsage annotationUsage,
LogLevel logLevel,
TypeSupport typeSupport,
@Nullable Set alternativeIgnore,
@Nullable Map>> alternativeNonNullable,
@Nullable Map alternativeAlias,
@Nullable Map>> alternativeMandatory,
@Nullable Set alternativeCreators,
@Nullable Map alternativeIndex,
@Nullable UnknownTypes unknownTypes,
boolean onlyBasicFeatures,
boolean includeFields,
boolean includeBeanMethods,
boolean includeExactMethods) {
this.annotationUsage = annotationUsage;
this.logLevel = logLevel;
this.elements = processingEnv.getElementUtils();
this.types = processingEnv.getTypeUtils();
this.messager = processingEnv.getMessager();
this.compiledJsonElement = elements.getTypeElement(CompiledJson.class.getName());
this.compiledJsonType = types.getDeclaredType(compiledJsonElement);
this.attributeElement = elements.getTypeElement(JsonAttribute.class.getName());
this.attributeType = types.getDeclaredType(attributeElement);
this.converterElement = elements.getTypeElement(JsonConverter.class.getName());
this.converterType = types.getDeclaredType(converterElement);
this.typeSupport = typeSupport;
this.alternativeIgnore = alternativeIgnore == null ? new HashSet() : alternativeIgnore;
this.alternativeNonNullable = alternativeNonNullable == null ? new HashMap>>() : alternativeNonNullable;
this.alternativeAlias = alternativeAlias == null ? new HashMap() : alternativeAlias;
this.alternativeMandatory = alternativeMandatory == null ? new HashMap>>() : alternativeMandatory;
this.alternativeCreators = alternativeCreators == null ? new HashSet() : alternativeCreators;
this.alternativeIndex = alternativeIndex == null ? new HashMap() : alternativeIndex;
this.unknownTypes = unknownTypes == null ? UnknownTypes.ERROR : unknownTypes;
this.onlyBasicFeatures = onlyBasicFeatures;
this.includeFields = includeFields;
this.includeBeanMethods = includeBeanMethods;
this.includeExactMethods = includeExactMethods;
this.baseListType = types.erasure(elements.getTypeElement(List.class.getName()).asType());
this.baseSetType = types.erasure(elements.getTypeElement(Set.class.getName()).asType());
this.baseMapType = types.erasure(elements.getTypeElement(Map.class.getName()).asType());
}
public Map processConverters(Set converters) {
Map configurations = new LinkedHashMap();
for (Element el : converters) {
findConverters(el);
if (el instanceof TypeElement) {
TypeElement te = (TypeElement) el;
if (!el.getModifiers().contains(Modifier.ABSTRACT)) {
for (TypeElement it : getTypeHierarchy((TypeElement) el)) {
if (Configuration.class.getName().equals(it.toString())) {
if (te.getNestingKind().isNested()) {
configurations.put(te.getEnclosingElement().asType().toString() + "$" + te.getSimpleName().toString(), te);
} else {
configurations.put(te.asType().toString(), te);
}
break;
}
}
}
}
}
return configurations;
}
public void processAnnotation(DeclaredType currentAnnotationType, Set targets) {
Stack path = new Stack();
for (Element el : targets) {
Element classElement;
ExecutableElement factory = null;
ExecutableElement builder = null;
if (el instanceof TypeElement) {
classElement = el;
} else if (el instanceof ExecutableElement && el.getKind() == ElementKind.METHOD) {
ExecutableElement ee = (ExecutableElement)el;
Element returnClass = types.asElement(ee.getReturnType());
Element enclosing = ee.getEnclosingElement();
if (!el.getModifiers().contains(Modifier.STATIC)
&& !types.isSameType(ee.getReturnType(), enclosing.asType())
&& returnClass.toString().equals(enclosing.getEnclosingElement().toString())) {
builder = ee;
}
factory = ee;
classElement = returnClass;
} else {
classElement = el.getEnclosingElement();
}
findStructs(classElement, currentAnnotationType, currentAnnotationType + " requires accessible public constructor", path, factory, builder);
}
findRelatedReferences();
findImplementations(structs.values());
}
public Map analyze() {
for (Map.Entry it : structs.entrySet()) {
final StructInfo info = it.getValue();
final String className = it.getKey();
if (info.type == ObjectType.CLASS && info.selectedConstructor() == null && info.annotatedFactory == null
&& info.builder == null && !info.hasKnownConversion() && info.matchingConstructors != null) {
hasError = true;
if (info.matchingConstructors.size() == 0) {
messager.printMessage(
Diagnostic.Kind.ERROR,
"No matching constructors found for '" + info.element.asType() + "'. Make sure there is at least one matching constructor available.",
info.element,
info.annotation);
} else {
messager.printMessage(
Diagnostic.Kind.ERROR,
"Multiple matching constructors found for '" + info.element.asType() + "'. Use @CompiledJson or alternative annotations to select the appropriate constructor.",
info.element,
info.annotation);
}
}
if (unknownTypes != UnknownTypes.ALLOW && !info.unknowns.isEmpty()) {
for (Map.Entry kv : info.unknowns.entrySet()) {
AttributeInfo attr = info.attributes.get(kv.getKey());
if (attr != null && (attr.converter != null || attr.isJsonObject)) continue;
Map references = analyzeParts(kv.getValue());
for (Map.Entry pair : references.entrySet()) {
Diagnostic.Kind kind;
switch (pair.getValue()) {
case UNKNOWN:
hasError = hasError || unknownTypes == UnknownTypes.ERROR;
kind = unknownTypes == UnknownTypes.ERROR ? Diagnostic.Kind.ERROR : Diagnostic.Kind.WARNING;
if (kind == Diagnostic.Kind.ERROR || logLevel.isVisible(LogLevel.INFO)) {
if (kv.getValue().toString().equals(pair.getKey())) {
messager.printMessage(
kind,
"Property " + kv.getKey() + " is referencing unknown type: '" + kv.getValue()
+ "'. Register custom converter, mark property as ignored or enable unknown types",
attr != null ? attr.element : info.element,
info.annotation);
} else {
messager.printMessage(
kind,
"Property " + kv.getKey() + " is referencing unknown type: '" + kv.getValue() + "' which has an unknown part: '"
+ pair.getKey() + "'. Register custom converter, mark property as ignored or enable unknown types",
attr != null ? attr.element : info.element,
info.annotation);
}
}
break;
case RAW_TYPE:
if (structs.containsKey("java.lang.Object")) continue;
hasError = hasError || unknownTypes == UnknownTypes.ERROR;
kind = unknownTypes == UnknownTypes.ERROR ? Diagnostic.Kind.ERROR : Diagnostic.Kind.WARNING;
if (kind == Diagnostic.Kind.ERROR || logLevel.isVisible(LogLevel.INFO)) {
if (kv.getValue().toString().equals(pair.getKey())) {
messager.printMessage(
kind,
"Property " + kv.getKey() + " is referencing raw type: '" + kv.getValue()
+ "'. Specify type arguments, register custom converter, mark property as ignored or enable unknown types",
attr != null ? attr.element : info.element,
info.annotation);
} else {
messager.printMessage(
kind,
"Property " + kv.getKey() + " is referencing type: '" + kv.getValue() + "' which has a raw type part: '"
+ pair.getKey() + "'. Specify type arguments, register custom converter, mark property as ignored or enable unknown types",
attr != null ? attr.element : info.element,
info.annotation);
}
}
break;
}
}
}
}
if (unknownTypes != UnknownTypes.ALLOW) {
for (AttributeInfo attr : info.attributes.values()) {
if (attr.converter != null || attr.isJsonObject) continue;
Map references = analyzeParts(attr.type);
for (String r : references.keySet()) {
StructInfo target = structs.get(r);
if (target != null && target.type == ObjectType.MIXIN && target.implementations.size() == 0) {
String what = target.element.getKind() == ElementKind.INTERFACE ? "interface" : "abstract class";
String one = target.element.getKind() == ElementKind.INTERFACE ? "implementation" : "concrete extension";
hasError = true;
messager.printMessage(Diagnostic.Kind.ERROR, "Property " + attr.name +
" is referencing " + what + " (" + target.element.getQualifiedName() + ") which doesn't have registered " +
"implementations with @CompiledJson. At least one " + one + " of specified " + what + " must be annotated " +
"with CompiledJson annotation or allow unknown types during analysis",
attr.element,
info.annotation);
}
}
}
}
if (info.builder == null && unknownTypes != UnknownTypes.ALLOW && info.type == ObjectType.MIXIN && info.implementations.isEmpty()) {
String what = info.element.getKind() == ElementKind.INTERFACE ? "Interface" : "Abstract class";
String one = info.element.getKind() == ElementKind.INTERFACE ? "implementation" : "concrete extension";
hasError = hasError || unknownTypes == UnknownTypes.ERROR;
Diagnostic.Kind kind = unknownTypes == UnknownTypes.ERROR ? Diagnostic.Kind.ERROR : Diagnostic.Kind.WARNING;
if (kind == Diagnostic.Kind.ERROR || logLevel.isVisible(LogLevel.INFO)) {
messager.printMessage(
kind,
what + " (" + className + ") is referenced, but it doesn't have registered " +
"implementations with @CompiledJson. At least one " + one + " of specified " + what + " must be annotated " +
"with CompiledJson annotation or allow unknown types during analysis",
info.element,
info.annotation);
}
}
if (info.type == ObjectType.CLASS && !info.hasKnownConversion() && info.annotatedFactory != null) {
if (onlyBasicFeatures) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Factory methods are not available with current analysis setup. Use annotation processor which supports such feature",
info.annotatedFactory,
info.annotation);
} else if (!types.isAssignable(info.annotatedFactory.getReturnType(), info.element.asType())) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Wrong factory result type: '" + info.annotatedFactory.getReturnType() + "'. Result must be assignable to '" + info.element.asType() + "'",
info.annotatedFactory,
info.annotation);
} else {
for (VariableElement p : info.annotatedFactory.getParameters()) {
boolean found = false;
String argName = p.getSimpleName().toString();
for (AttributeInfo attr : info.attributes.values()) {
if (attr.name.equals(argName)) {
found = true;
break;
}
}
if (!found) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Unable to find matching property: '" + argName + "' used in method factory. Either use annotation processor on source code, on bytecode with -parameters flag (to enable parameter names) or manually create an instance via converter",
info.annotatedFactory,
info.annotation);
}
}
}
}
if (info.type == ObjectType.CLASS && info.hasAnnotation() && !info.hasKnownConversion() && info.attributes.isEmpty() && info.implementations.isEmpty()) {
boolean isUsedAsImplementation = false;
for (StructInfo si : structs.values()) {
if (si.implementations.contains(info)) {
isUsedAsImplementation = true;
break;
}
}
if (!isUsedAsImplementation) {
messager.printMessage(
Diagnostic.Kind.WARNING,
"No properties found on: '" + info.element + "'. Since it's not used as implementation for some mixin, it's most likely an invalid class configuration (name mismatch, missing setter, etc...)",
info.annotatedFactory,
info.annotation);
}
}
if (info.type == ObjectType.CLASS && !info.hasKnownConversion() && info.usesCtorWithArguments()) {
for (VariableElement p : info.selectedConstructor().getParameters()) {
boolean found = false;
String argName = p.getSimpleName().toString();
for (AttributeInfo attr : info.attributes.values()) {
if (attr.name.equals(argName)) {
found = true;
break;
}
}
if (!found) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Unable to find matching property: '" + argName + "' used in constructor. Either use annotation processor on source code, on bytecode with -parameters flag (to enable parameter names) or manually create an instance via converter",
info.selectedConstructor(),
info.annotation);
}
}
}
if (!info.hasKnownConversion() && info.annotatedFactory == null && info.selectedConstructor() == null && info.builder != null) {
if (onlyBasicFeatures) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Builder pattern is not available with current analysis setup. Use annotation processor which supports such feature",
info.builder.type,
info.builder.annotation);
} else if (requiresPublic(info.builder.type) && !info.builder.type.getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Builder type: '" + info.builder.type + "' is not accessible",
info.builder.build,
info.builder.annotation);
} else if (!types.isAssignable(info.builder.build.getReturnType(), info.element.asType())) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Wrong builder result type: '" + info.builder.build.getReturnType() + "'. Result must be assignable to '" + info.element.asType() + "'",
info.builder.build,
info.builder.annotation);
} else if (!info.builder.build.getParameters().isEmpty()) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Builder method: '" + info.builder.build.getSimpleName() + "' can't have parameters",
info.builder.build,
info.builder.annotation);
} else if (info.builder.ctor != null && info.builder.factory == null && !info.builder.ctor.getParameters().isEmpty()) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Builder constructor for: '" + info.builder.type + "' can't have parameters",
info.builder.ctor,
info.builder.annotation);
} else if (info.builder.factory != null && !types.isSameType(info.builder.factory.getReturnType(), info.builder.type.asType())) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Wrong builder factory result type: '" + info.builder.build.getReturnType() + "'. Expecting: '" + info.builder.type + "'",
info.builder.factory,
info.builder.annotation);
}
}
if (info.checkHashCollision()) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Duplicate hash value detected. Unable to create binding for: '" + className + "'. Remove (or reduce) alternativeNames from @JsonAttribute to resolve this issue." + info.pathDescription(),
info.element,
info.annotation);
}
if (info.deserializeAs != null) {
StructInfo target = structs.get(info.deserializeAs.asType().toString());
info.setDeserializeTarget(target);
if (target == null) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Unable to find DSL-JSON metadata for: '" + info.deserializeAs.getQualifiedName() + "'. Add @CompiledJson annotation to target type.",
info.element,
info.annotation);
}
}
if (info.deserializeAs == null && info.type == ObjectType.MIXIN) {
Set names = new HashSet();
String discriminator = info.discriminator;
if (discriminator.length() > 0 && onlyBasicFeatures) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Custom $type discriminator is not supported with current analysis setup",
info.element,
info.annotation);
}
int invalidChartAt = -1;
for (int i = 0; i < discriminator.length(); i++) {
char c = discriminator.charAt(i);
if (c < 32 || c == '"' || c == '\\' || c > 126) {
invalidChartAt = i;
break;
}
}
if (invalidChartAt != -1) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Invalid discriminator value: '" + discriminator + "' for mixin: " + className +". Invalid char at: " + invalidChartAt,
info.element,
info.annotation);
}
for (StructInfo im : info.implementations) {
String actualName = im.deserializeName.isEmpty() ? im.element.getQualifiedName().toString() : im.deserializeName;
AttributeInfo attr = im.attributes.get(discriminator);
if (attr != null) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Conflicting discriminator name detected: '" + discriminator + "' for mixin: " + className + " with property '" + attr.name + "' in class " + im.element.toString(),
info.element,
info.annotation);
}
if (!names.add(actualName)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Duplicate deserialization name detected: '" + actualName + "' for mixin: " + className,
info.element,
info.annotation);
} else if (actualName.contains("\\") || actualName.contains("\"")) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Invalid deserialization name (with quotes or escape chars) detected: '" + actualName + "' for mixin: " + className,
info.element,
info.annotation);
}
}
}
if (info.type == ObjectType.MIXIN && info.discriminator.length() > 0 && info.implementations.isEmpty()) {
messager.printMessage(
Diagnostic.Kind.WARNING,
"Custom discriminator found: '" + info.discriminator + "', but no implementation detected for mixin: " + className,
info.element,
info.annotation);
}
if (info.type == ObjectType.CLASS && info.discriminator.length() > 0) {
if (info.attributes.containsKey(info.discriminator)) {
messager.printMessage(
Diagnostic.Kind.WARNING,
"Discriminator has the same value as one of the attributes. Discriminator will be excluded in favor of attribute value",
info.element,
info.annotation);
}
int hash = StructInfo.calcHash(info.discriminator);
for (AttributeInfo attr : info.attributes.values()) {
boolean sameHash = StructInfo.calcHash(attr.id) == hash;
for (String name : attr.alternativeNames) {
sameHash = sameHash || StructInfo.calcHash(name) == hash;
}
if (sameHash) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Discriminator has the same hash value as property: " + attr.name + ". Either simulate class discriminator via property, or remove the discriminator value from class",
info.element,
info.annotation);
}
}
}
if (info.type == ObjectType.CLASS && onlyBasicFeatures && !info.hasKnownConversion() && !info.hasEmptyCtor()) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + className + "' requires public no argument constructor" + info.pathDescription(),
info.element,
info.annotation);
} else if (info.type == ObjectType.CLASS && !onlyBasicFeatures && !info.hasEmptyCtor() && !info.hasKnownConversion()
&& info.annotatedFactory == null && info.builder == null && (info.selectedConstructor() == null || info.selectedConstructor().getParameters().size() != info.attributes.size())) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + className + "' does not have an empty or matching constructor" + info.pathDescription(),
info.element,
info.annotation);
}
if (info.formats.contains(CompiledJson.Format.ARRAY)) {
HashSet ids = new HashSet();
for (AttributeInfo attr : info.attributes.values()) {
if (attr.index == -1 && info.createFromEmptyInstance() && info.attributes.size() > 1) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"When array format is used on class with multiple properties all properties must have index order defined. Property " + attr.name + " doesn't have index defined",
attr.element,
attr.annotation);
} else if (attr.index != -1 && !ids.add(attr.index)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Duplicate index detected on " + attr.name + ". Index values must be distinct to be used in array format",
attr.element,
attr.annotation);
}
}
}
if (info.objectFormatPolicy == CompiledJson.ObjectFormatPolicy.FULL) {
for (AttributeInfo attr : info.attributes.values()) {
if (attr.includeToMinimal == JsonAttribute.IncludePolicy.ALWAYS) {
messager.printMessage(
Diagnostic.Kind.WARNING,
"When object format is set to FULL, all properties will always be included in the output. It is not necessary to explicitly mark property to be ALWAYS included, since minimal format is not used",
attr.element,
attr.annotation);
}
}
}
if (info.isMinified) {
info.prepareMinifiedNames();
}
info.sortAttributes();
}
return new LinkedHashMap(structs);
}
private void findConverters(Element el) {
AnnotationMirror dslAnn = getAnnotation(el, converterType);
if (!(el instanceof TypeElement) || dslAnn == null) {
return;
}
TypeElement converter = (TypeElement) el;
DeclaredType target = null;
Map values = dslAnn.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("target()")) {
target = (DeclaredType) values.get(ee).getValue();
break;
}
}
if (target == null) return;
ConverterInfo signature = validateConverter(converter, target.asElement(), target.toString());
//TODO: throw an error if multiple non-compatible converters were found!?
if (!structs.containsKey(target.toString())) {
String name = "struct" + structs.size();
TypeElement element = (TypeElement) target.asElement();
String binaryName = elements.getBinaryName(element).toString();
StructInfo info = new StructInfo(signature, converterType, element, name, binaryName);
structs.put(target.toString(), info);
}
}
private ConverterInfo validateConverter(TypeElement converter, Element target, String fullName) {
VariableElement jsonReaderField = null;
VariableElement jsonWriterField = null;
ExecutableElement jsonReaderMethod = null;
ExecutableElement jsonWriterMethod = null;
boolean hasInstance = false;
for (VariableElement field : ElementFilter.fieldsIn(converter.getEnclosedElements())) {
//Kotlin uses INSTANCE field with non static get methods
if ("INSTANCE".equals(field.getSimpleName().toString())) {
if (field.asType().toString().equals(converter.getQualifiedName().toString())
&& field.getModifiers().contains(Modifier.STATIC)
&& field.getModifiers().contains(Modifier.PUBLIC)
&& field.getModifiers().contains(Modifier.FINAL)) {
hasInstance = true;
}
} else if ("JSON_READER".equals(field.getSimpleName().toString())) {
jsonReaderField = field;
} else if ("JSON_WRITER".equals(field.getSimpleName().toString())) {
jsonWriterField = field;
}
}
if (!onlyBasicFeatures) {
for (ExecutableElement method : ElementFilter.methodsIn(converter.getEnclosedElements())) {
if ("JSON_READER".equals(method.getSimpleName().toString()) || "getJSON_READER".equals(method.getSimpleName().toString())) {
jsonReaderMethod = method;
} else if ("JSON_WRITER".equals(method.getSimpleName().toString()) || "getJSON_WRITER".equals(method.getSimpleName().toString())) {
jsonWriterMethod = method;
}
}
}
String allowed = onlyBasicFeatures ? "field" : "field/method";
if (!converter.getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter: '" + converter.asType() + "' must be public",
converter,
getAnnotation(converter, converterType));
} else if (!target.getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter target: '" + fullName + "' must be public",
converter,
getAnnotation(converter, converterType));
} else if (converter.getNestingKind().isNested() && !converter.getModifiers().contains(Modifier.STATIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter: '" + converter.asType() + "' can't be a nested member. Only public static nested classes are supported",
converter,
getAnnotation(converter, converterType));
} else if (onlyBasicFeatures && (converter.getQualifiedName().contentEquals(converter.getSimpleName())
|| converter.getNestingKind().isNested() && converter.getModifiers().contains(Modifier.STATIC)
&& converter.getEnclosingElement() instanceof TypeElement
&& ((TypeElement) converter.getEnclosingElement()).getQualifiedName().contentEquals(converter.getEnclosingElement().getSimpleName()))) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter: '" + converter.getQualifiedName() + "' is defined without a package name and cannot be accessed",
converter,
getAnnotation(converter, converterType));
} else if (jsonReaderField == null && jsonReaderMethod == null || jsonWriterField == null && jsonWriterMethod == null) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter: '" + converter.getQualifiedName() + "' doesn't have a JSON_READER or JSON_WRITER " + allowed + ". It must have public static JSON_READER/JSON_WRITER " + allowed + " for conversion.",
converter,
getAnnotation(converter, converterType));
} else if (jsonReaderMethod == null && (!jsonReaderField.getModifiers().contains(Modifier.PUBLIC) || !jsonReaderField.getModifiers().contains(Modifier.STATIC))
|| jsonWriterMethod == null && (!jsonWriterField.getModifiers().contains(Modifier.PUBLIC) || !jsonWriterField.getModifiers().contains(Modifier.STATIC))
|| jsonReaderMethod != null && (!jsonReaderMethod.getModifiers().contains(Modifier.PUBLIC) || !hasInstance && !jsonReaderMethod.getModifiers().contains(Modifier.STATIC))
|| jsonWriterMethod != null && (!jsonWriterMethod.getModifiers().contains(Modifier.PUBLIC) || !hasInstance && !jsonWriterMethod.getModifiers().contains(Modifier.STATIC))) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter: '" + converter.getQualifiedName() + "' doesn't have public and static JSON_READER and JSON_WRITER " + allowed + ". They must be public and static for converter to work properly.",
converter,
getAnnotation(converter, converterType));
} else if (jsonReaderField != null && !("com.dslplatform.json.JsonReader.ReadObject<" + fullName + ">").equals(jsonReaderField.asType().toString())
|| jsonReaderMethod != null && !("com.dslplatform.json.JsonReader.ReadObject<" + fullName + ">").equals(jsonReaderMethod.getReturnType().toString())) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter: '" + converter.getQualifiedName() + "' has invalid type for JSON_READER field. It must be of type: 'com.dslplatform.json.JsonReader.ReadObject<" + fullName + ">'",
converter,
getAnnotation(converter, converterType));
} else if (jsonWriterField != null && !("com.dslplatform.json.JsonWriter.WriteObject<" + fullName + ">").equals(jsonWriterField.asType().toString())
|| jsonWriterMethod != null && !("com.dslplatform.json.JsonWriter.WriteObject<" + fullName + ">").equals(jsonWriterMethod.getReturnType().toString())) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Specified converter: '" + converter.getQualifiedName() + "' has invalid type for JSON_WRITER " + allowed + ". It must be of type: 'com.dslplatform.json.JsonWriter.WriteObject<" + fullName + ">'",
converter,
getAnnotation(converter, converterType));
}
return new ConverterInfo(
converter,
jsonReaderMethod != null
? (hasInstance ? "INSTANCE." : "") + jsonReaderMethod.getSimpleName().toString() + "()" : jsonReaderField != null
? jsonReaderField.getSimpleName().toString() : "",
jsonWriterMethod != null
? (hasInstance ? "INSTANCE." : "") + jsonWriterMethod.getSimpleName().toString() + "()" : jsonWriterField != null
? jsonWriterField.getSimpleName().toString() : ""
);
}
public List getTypeHierarchy(TypeElement element) {
List result = new ArrayList();
getAllTypes(element, result, new HashSet());
return result;
}
private void getAllTypes(TypeElement element, List result, Set processed) {
if (!processed.add(element) || element.getQualifiedName().contentEquals("java.lang.Object")) return;
result.add(element);
for (TypeMirror type : types.directSupertypes(element.asType())) {
Element current = types.asElement(type);
if (current instanceof TypeElement) {
getAllTypes((TypeElement) current, result, processed);
}
}
}
private class PropertyAnalysis {
public final ExecutableElement creator;
public final Set allKeys = new HashSet();
public final Map beans;
public final Map exact;
public final Map fields;
public PropertyAnalysis(ExecutableElement creator, TypeElement element, Map arguments) {
this.creator = creator;
this.beans = includeBeanMethods ? getBeanProperties(element, arguments) : Collections.emptyMap();
this.exact = includeExactMethods ? getExactProperties(element, arguments) : Collections.emptyMap();
this.fields = includeFields ? getPublicFields(element, arguments) : Collections.emptyMap();
allKeys.addAll(beans.keySet());
allKeys.addAll(exact.keySet());
allKeys.addAll(fields.keySet());
}
}
public void findRelatedReferences() {
int total;
do {
total = structs.size();
List items = new ArrayList(structs.values());
Stack path = new Stack();
for (StructInfo info : items) {
if (info.hasKnownConversion()) continue;
path.push(info.element.getSimpleName().toString());
if (!onlyBasicFeatures && info.builder != null && info.annotatedConstructor == null && info.annotatedFactory == null) {
for (Map.Entry p : getBuilderProperties(info.element, info.builder, includeBeanMethods, includeExactMethods, includeFields).entrySet()) {
AccessElements ae = p.getValue();
analyzeAttribute(info, ae.field != null ? ae.field.asType() : ae.read.getReturnType(), p.getKey(), ae, "builder property", path);
}
} else {
Map> creatorArguments = new HashMap>();
if (info.annotatedFactory != null) {
creatorArguments.put(info.annotatedFactory, getArguments(info.annotatedFactory));
} else if (info.annotatedConstructor != null) {
creatorArguments.put(info.annotatedConstructor, getArguments(info.annotatedConstructor));
} else if (info.matchingConstructors != null) {
for (ExecutableElement ctor : info.matchingConstructors) {
if (!onlyBasicFeatures || ctor.getParameters().size() == 0) {
creatorArguments.put(ctor, getArguments(ctor));
}
}
}
PropertyAnalysis bestAnalysis = null;
for(Map.Entry> kv : creatorArguments.entrySet()) {
PropertyAnalysis analysis = new PropertyAnalysis(kv.getKey(), info.element, kv.getValue());
if (bestAnalysis == null) {
bestAnalysis = analysis;
} else {
int foundKeys = analysis.allKeys.size();
int oldKeys = bestAnalysis.allKeys.size();
if (foundKeys > oldKeys) {
bestAnalysis = analysis;
} else if (foundKeys == oldKeys) {
if (analysis.creator.getParameters().size() == 0) {
bestAnalysis = analysis;
}
}
}
}
if (bestAnalysis != null) {
if (info.annotatedFactory == null) {
info.useConstructor(bestAnalysis.creator);
}
for (Map.Entry p : bestAnalysis.beans.entrySet()) {
analyzeAttribute(info, p.getValue().read.getReturnType(), p.getKey(), p.getValue(), "bean property", path);
}
for (Map.Entry p : bestAnalysis.exact.entrySet()) {
if (!info.attributes.containsKey(p.getKey()) || info.annotation != null) {
analyzeAttribute(info, p.getValue().read.getReturnType(), p.getKey(), p.getValue(), "exact property", path);
}
}
for (Map.Entry f : bestAnalysis.fields.entrySet()) {
if (!info.attributes.containsKey(f.getKey()) || info.annotation != null) {
analyzeAttribute(info, f.getValue().field.asType(), f.getKey(), f.getValue(), "field", path);
}
}
}
}
path.pop();
}
} while (total != structs.size());
}
private Map findGenericSignatures(TypeMirror type) {
Queue queue = new ArrayDeque(types.directSupertypes(type));
Map genericAttributes = new HashMap();
while (!queue.isEmpty()) {
TypeMirror mirror = queue.poll();
if (mirror instanceof DeclaredType) {
DeclaredType declaredType = (DeclaredType) mirror;
Element element = declaredType.asElement();
if (element instanceof TypeElement) {
List typeArguments = declaredType.getTypeArguments();
List typeParameters = ((TypeElement) element).getTypeParameters();
for (int i = 0; i < typeParameters.size(); i++) {
genericAttributes.put(typeParameters.get(i).toString(), typeArguments.get(i));
}
queue.addAll(types.directSupertypes(mirror));
}
}
}
return genericAttributes;
}
public static String objectName(final String type) {
return "int".equals(type) ? "java.lang.Integer"
: "long".equals(type) ? "java.lang.Long"
: "double".equals(type) ? "java.lang.Double"
: "float".equals(type) ? "java.lang.Float"
: "char".equals(type) ? "java.lang.Character"
: "byte".equals(type) ? "java.lang.Byte"
: "short".equals(type) ? "java.lang.Short"
: "boolean".equals(type) ? "java.lang.Boolean"
: type;
}
private void analyzeAttribute(StructInfo info, TypeMirror originalType, String name, AccessElements access, String target, Stack path) {
Element element = access.field != null ? access.field : access.read;
path.push(name);
if (!info.properties.contains(element) && !hasIgnoredAnnotation(element)) {
TypeMirror referenceType = access.field != null ? access.field.asType() : access.read.getReturnType();
TypeMirror type = originalType.getKind() == TypeKind.TYPEVAR && info.genericSignatures.containsKey(originalType.toString()) ? info.genericSignatures.get(originalType.toString()) : originalType;
Element referenceElement = types.asElement(referenceType);
AnnotationMirror annotation = access.annotation;
TypeMirror converterMirror = findConverter(annotation);
final ConverterInfo converter;
if (converterMirror != null) {
TypeElement typeConverter = elements.getTypeElement(converterMirror.toString());
String javaType = type.toString();
String objectType = objectName(javaType);
Element declaredType = objectType.equals(javaType)
? types.asElement(type)
: elements.getTypeElement(objectType);
converter = validateConverter(typeConverter, declaredType, objectType);
} else converter = null;
String referenceName = referenceType.toString();
boolean isJsonObject = jsonObjectReaderPath(referenceElement, false) != null;
boolean typeResolved = converter != null || isJsonObject || structs.containsKey(referenceName);
boolean hasUnknown = false;
boolean hasOwnerStructType = false;
Map typeVariablesIndex = new HashMap();
Map references = new HashMap();
LinkedHashSet usedTypes = new LinkedHashSet();
analyzePartsRecursively(referenceType, references, usedTypes);
if (!typeResolved || info.isParameterized) {
for (Map.Entry kv : references.entrySet()) {
String partTypeName = kv.getKey();
PartKind partKind = kv.getValue();
if (partKind == PartKind.UNKNOWN || partKind == PartKind.RAW_TYPE) {
hasUnknown = true;
}
if (partKind == PartKind.TYPE_VARIABLE) {
typeVariablesIndex.put(partTypeName, info.typeParametersNames.indexOf(partTypeName));
}
if (partTypeName.equals(info.element.toString())) {
hasOwnerStructType = true;
}
}
}
CompiledJson.TypeSignature typeSignature = typeSignatureValue(annotation);
JsonAttribute.IncludePolicy includeToMinimal = includeToMinimalValue(annotation);
AttributeInfo attr =
new AttributeInfo(
name,
access.read,
access.write,
access.field,
type,
isCompatibileCollection(type, baseListType),
isCompatibileCollection(type, baseSetType),
isCompatibileCollection(type, baseMapType),
annotation,
hasNonNullable(element, annotation),
hasMandatoryAnnotation(element, annotation),
index(element, annotation),
findNameAlias(element, annotation),
isFullMatch(element, annotation),
typeSignature,
includeToMinimal,
converter,
isJsonObject,
usedTypes,
typeVariablesIndex,
hasOwnerStructType);
String[] alternativeNames = attr.annotation == null ? null : getAlternativeNames(attr.annotation);
if (alternativeNames != null) {
attr.alternativeNames.addAll(Arrays.asList(alternativeNames));
}
AttributeInfo other = info.attributes.get(attr.id);
if (other != null
&& (other.annotation != null && attr.annotation == null
|| other.annotation == null && attr.annotation == null && other.field == null && attr.field != null)) {
//if other property has annotation, but this does not, skip over this property
//if both properties don't have annotation, use the non field one
path.pop();
return;
} else if (other != null
&& (!other.name.equals(attr.name)
|| other.id.equals(attr.id) && other.field == null && attr.field == null)) {
//if properties have different name or both are method based raise an error
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Duplicate alias detected on " + (attr.field != null ? "field: " : "property: ") + attr.name,
attr.element,
info.annotation);
}
if (!typeResolved && hasUnknown) {
info.unknowns.put(attr.id, referenceType);
}
info.attributes.put(attr.id, attr);
info.properties.add(attr.element);
checkRelatedProperty(type, info.discoveredBy, target, info.element, element, path);
}
path.pop();
}
private void checkRelatedProperty(TypeMirror returnType, DeclaredType discoveredBy, String access, Element inside, Element property, Stack path) {
TypeMirror converter = findConverter(property);
if (converter != null) return;
checkRelatedPropertyRecursively(returnType, discoveredBy, access, inside, path);
}
private void checkRelatedPropertyRecursively(TypeMirror returnType, DeclaredType discoveredBy, String access, Element inside, Stack path) {
String typeName = returnType.toString();
if (structs.containsKey(typeName) || typeSupport.isSupported(typeName)) return;
if (returnType.getKind() == TypeKind.DECLARED) {
DeclaredType declaredType = (DeclaredType) returnType;
String rawTypeName = declaredType.asElement().toString();
if (!structs.containsKey(rawTypeName) && !typeSupport.isSupported(rawTypeName)) {
Element el = declaredType.asElement();
findStructs(el, discoveredBy, el + " is referenced as " + access + " from '" + inside.asType() + "' through CompiledJson annotation.", path, null, null);
}
for (TypeMirror typeArgument : declaredType.getTypeArguments()) {
checkRelatedPropertyRecursively(typeArgument, discoveredBy, access, inside, path);
}
} else if (returnType.getKind() == TypeKind.ARRAY) {
ArrayType at = (ArrayType) returnType;
checkRelatedPropertyRecursively(at.getComponentType(), discoveredBy, access, inside, path);
} else {
Element el = elements.getTypeElement(typeName);
if (el != null) {
findStructs(el, discoveredBy, el + " is referenced as " + access + " from '" + inside.asType() + "' through CompiledJson annotation.", path, null, null);
}
}
}
private boolean requiresPublic(Element element) {
if (onlyBasicFeatures) return true;
final String name = element.asType().toString();
if (name.startsWith("java.")) return true; //TODO: maybe some other namespaces !?
final PackageElement pkg = elements.getPackageOf(element);
if (pkg == null) return false;
final Package packageClass = Package.getPackage(pkg.getQualifiedName().toString());
return packageClass != null && packageClass.isSealed();
}
private void findStructs(
Element el,
DeclaredType discoveredBy,
String errorMessge,
Stack path,
@Nullable ExecutableElement factory,
@Nullable ExecutableElement builder) {
if (!(el instanceof TypeElement)) return;
String typeName = el.toString();
if (structs.containsKey(typeName) || typeSupport.isSupported(typeName) || "java.lang.Object".equals(typeName)) return;
final TypeElement element = (TypeElement) el;
boolean isMixin = element.getKind() == ElementKind.INTERFACE
|| element.getKind() == ElementKind.CLASS && element.getModifiers().contains(Modifier.ABSTRACT);
String jsonObjectReaderPath = jsonObjectReaderPath(element, true);
boolean isJsonObject = jsonObjectReaderPath != null;
final AnnotationMirror annotation = scanClassForAnnotation(element, discoveredBy, factory);
if (element.getModifiers().contains(Modifier.PRIVATE)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
errorMessge + ", therefore '" + element.asType() + "' can't be private ",
element,
annotation);
} else if (requiresPublic(element) && !element.getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
errorMessge + ", therefore '" + element.asType() + "' must be public ",
element,
annotation);
} else if (element.getNestingKind().isNested() && !element.getModifiers().contains(Modifier.STATIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
errorMessge + ", therefore '" + element.asType() + "' can't be a nested member. Only static nested classes are supported.",
element,
annotation);
} else if (onlyBasicFeatures && (element.getQualifiedName().contentEquals(element.getSimpleName())
|| element.getNestingKind().isNested() && element.getModifiers().contains(Modifier.STATIC)
&& element.getEnclosingElement() instanceof TypeElement
&& ((TypeElement) element.getEnclosingElement()).getQualifiedName().contentEquals(element.getEnclosingElement().getSimpleName()))) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
errorMessge + ", but class '" + element.getQualifiedName() + "' is defined without a package name and cannot be accessed.",
element,
annotation);
} else if (element.getNestingKind().isNested() && requiresPublic(element.getEnclosingElement()) && !element.getEnclosingElement().getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
errorMessge + ", therefore '" + element.getEnclosingElement().asType() + "' must be public ",
element,
annotation);
} else {
ObjectType type = isMixin ? ObjectType.MIXIN : element.getKind() == ElementKind.ENUM ? ObjectType.ENUM : ObjectType.CLASS;
CompiledJson.Behavior onUnknown = CompiledJson.Behavior.DEFAULT;
CompiledJson.TypeSignature typeSignature = CompiledJson.TypeSignature.DEFAULT;
TypeElement deserializeAs = null;
if (!isJsonObject) {
if (annotation != null) {
onUnknown = onUnknownValue(annotation);
typeSignature = typeSignatureValue(annotation);
deserializeAs = deserializeAs(annotation);
if (deserializeAs != null) {
String error = validateDeserializeAs(element, deserializeAs);
if (error != null) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
errorMessge + ", but specified deserializeAs target: '" + deserializeAs.getQualifiedName() + "' " + error,
element,
annotation);
deserializeAs = null;//reset it so that later lookup don't add another error message
} else {
if (deserializeAs.asType().toString().equals(element.asType().toString())) {
deserializeAs = null;
} else {
findStructs(deserializeAs, discoveredBy, errorMessge, path, null, null);
}
}
}
} else if (annotationUsage != AnnotationUsage.IMPLICIT) {
if (annotationUsage == AnnotationUsage.EXPLICIT) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Annotation usage is set to explicit, but '" + element.getQualifiedName() + "' is used implicitly through references. " +
"Either change usage to implicit, use @Ignore on property referencing this type or register custom converter for problematic type. " + errorMessge,
element);
} else if (element.getQualifiedName().toString().startsWith("java.")) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Annotation usage is set to non-java, but '" + element.getQualifiedName() + "' is found in java package. " +
"Either change usage to implicit, use @Ignore on property referencing this type, register custom converter for problematic type or add annotation to this type. " +
errorMessge,
element);
}
}
}
CompiledJson.ObjectFormatPolicy objectFormatPolicy = objectFormatPolicyValue(annotation);
CompiledJson.Format[] formats = getFormats(annotation);
if ((new HashSet(Arrays.asList(formats))).size() != formats.length) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Duplicate format detected on '" + element.getQualifiedName() + "'.",
element,
annotation);
}
String name = "struct" + structs.size();
String binaryName = elements.getBinaryName(element).toString();
BuilderInfo builderInfo = findBuilder(element, discoveredBy, builder);
ExecutableElement factoryAnn = findAnnotatedFactory(element, discoveredBy, factory, builderInfo);
StructInfo info =
new StructInfo(
element,
discoveredBy,
name,
binaryName,
type,
jsonObjectReaderPath,
findMatchingConstructors(element),
findAnnotatedConstructor(element, discoveredBy),
factoryAnn,
builderInfo,
annotation,
onUnknown,
typeSignature,
objectFormatPolicy,
deserializeAs,
classDiscriminator(annotation),
className(annotation),
type == ObjectType.ENUM ? findEnumConstantNameSource(element) : null,
isMinified(annotation),
formats,
findGenericSignatures(element.asType()));
info.path.addAll(path);
if (type == ObjectType.ENUM) {
info.constants.addAll(getEnumConstants(info.element));
}
structs.put(typeName, info);
}
}
@Nullable
private String validateDeserializeAs(TypeElement source, TypeElement target) {
if (target.getModifiers().contains(Modifier.PRIVATE)) {
return "can't be private";
} else if (requiresPublic(target) && !target.getModifiers().contains(Modifier.PUBLIC)) {
return "must be public";
} else if (target.getNestingKind().isNested() && !target.getModifiers().contains(Modifier.STATIC)) {
return "can't be a nested member. Only public static nested classes are supported";
} else if (target.getNestingKind().isNested() && !target.getModifiers().contains(Modifier.PUBLIC)) {
return "must be public when nested in another class";
} else if (onlyBasicFeatures && (target.getQualifiedName().contentEquals(target.getSimpleName())
|| target.getNestingKind().isNested() && target.getModifiers().contains(Modifier.STATIC)
&& target.getEnclosingElement() instanceof TypeElement
&& ((TypeElement) target.getEnclosingElement()).getQualifiedName().contentEquals(target.getEnclosingElement().getSimpleName()))) {
return "is defined without a package name and cannot be accessed";
} else if (target.getKind() == ElementKind.INTERFACE || target.getModifiers().contains(Modifier.ABSTRACT)) {
return "must be a concrete type";
} else if (!source.asType().toString().equals(target.asType().toString()) && source.getKind() != ElementKind.INTERFACE && !source.getModifiers().contains(Modifier.ABSTRACT)) {
return "can only be specified for interfaces and abstract classes. '" + source + "' is neither interface nor abstract class";
} else if (!types.isAssignable(target.asType(), source.asType())) {
return "is not assignable to '" + source.getQualifiedName() + "'";
} else {
return null;
}
}
@Nullable
public List findMatchingConstructors(Element element) {
if (element.getKind() == ElementKind.INTERFACE
|| element.getKind() == ElementKind.ENUM
|| element.getKind() == ElementKind.CLASS && element.getModifiers().contains(Modifier.ABSTRACT)) {
return null;
}
List matchingCtors = new ArrayList();
for (ExecutableElement constructor : ElementFilter.constructorsIn(element.getEnclosedElements())) {
if (!constructor.getModifiers().contains(Modifier.PRIVATE)
&& !constructor.getModifiers().contains(Modifier.PROTECTED)
&& (!requiresPublic(element) || constructor.getModifiers().contains(Modifier.PUBLIC))) {
matchingCtors.add(constructor);
}
}
return matchingCtors;
}
@Nullable
public ExecutableElement findAnnotatedConstructor(Element element, DeclaredType discoveredBy) {
if (element.getKind() == ElementKind.INTERFACE
|| element.getKind() == ElementKind.ENUM
|| element.getKind() == ElementKind.CLASS && element.getModifiers().contains(Modifier.ABSTRACT)) {
return null;
}
for (ExecutableElement constructor : ElementFilter.constructorsIn(element.getEnclosedElements())) {
AnnotationMirror discAnn = getAnnotation(constructor, discoveredBy);
if (discAnn != null) {
if (constructor.getModifiers().contains(Modifier.PRIVATE)
|| constructor.getModifiers().contains(Modifier.PROTECTED)
|| requiresPublic(element) && !constructor.getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Constructor in '" + element.asType() + "' is annotated with " + discoveredBy + ", but it's not accessible.",
constructor,
discAnn);
}
return constructor;
}
for (AnnotationMirror ann : constructor.getAnnotationMirrors()) {
if (alternativeCreators.contains(ann.getAnnotationType().toString())) {
if (constructor.getModifiers().contains(Modifier.PRIVATE)
|| constructor.getModifiers().contains(Modifier.PROTECTED)
|| requiresPublic(element) && !constructor.getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Constructor in '" + element.asType() + "' is annotated with " + ann.getAnnotationType() + ", but it's not public.",
constructor,
ann);
}
return constructor;
}
}
}
return null;
}
@Nullable
private ExecutableElement findAnnotatedFactory(
Element element,
DeclaredType discoveredBy,
@Nullable ExecutableElement factory,
@Nullable BuilderInfo builder) {
if (element.getKind() == ElementKind.INTERFACE
|| element.getKind() == ElementKind.ENUM) {
return null;
}
AnnotationMirror annotation = null;
if (factory == null) {
for (ExecutableElement method : ElementFilter.methodsIn(element.getEnclosedElements())) {
AnnotationMirror discAnn = getAnnotation(method, discoveredBy);
if (discAnn != null) {
factory = method;
annotation = discAnn;
break;
}
for (AnnotationMirror ann : method.getAnnotationMirrors()) {
if (alternativeCreators.contains(ann.getAnnotationType().toString())) {
if (method.getModifiers().contains(Modifier.PRIVATE)
|| requiresPublic(element) && !method.getModifiers().contains(Modifier.PUBLIC)) {
factory = method;
annotation = ann;
break;
}
}
}
}
}
if (factory == null) return null;
boolean isStaticMethod = factory.getModifiers().contains(Modifier.STATIC);
boolean isSingletonInstanceMethod = false;
TypeElement parent = (TypeElement)factory.getEnclosingElement();
if (!isStaticMethod && parent.getEnclosingElement() instanceof TypeElement
&& parent.getModifiers().contains(Modifier.STATIC)) {
TypeElement grandparent = (TypeElement)parent.getEnclosingElement();
for(VariableElement field : ElementFilter.fieldsIn(grandparent.getEnclosedElements())) {
if (field.getSimpleName().equals(parent.getSimpleName())
&& field.getModifiers().contains(Modifier.PUBLIC)
&& field.getModifiers().contains(Modifier.STATIC)
&& field.getModifiers().contains(Modifier.FINAL)) {
isSingletonInstanceMethod = true;
break;
}
}
}
if (factory.getModifiers().contains(Modifier.PRIVATE)
|| !isStaticMethod && !isSingletonInstanceMethod
|| requiresPublic(factory.getEnclosingElement()) && !factory.getModifiers().contains(Modifier.PUBLIC)) {
if (builder != null) return null;
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"Factory method in '" + factory.getEnclosingElement().asType() + "' is annotated with " + discoveredBy + ", but it's not accessible.",
factory,
annotation != null ? annotation : getAnnotation(factory, discoveredBy));
}
return factory;
}
@Nullable
private BuilderInfo findBuilder(Element element, DeclaredType discoveredBy, @Nullable ExecutableElement builder) {
if (element.getKind() == ElementKind.ENUM) {
return null;
}
ExecutableElement factory = null;
ExecutableElement build = builder;
TypeElement builderType = null;
if (builder != null) {
Element ee = builder.getEnclosingElement();
if (ee instanceof TypeElement) {
builderType = (TypeElement) ee;
}
}
for (ExecutableElement method : ElementFilter.methodsIn(element.getEnclosedElements())) {
if (method.getModifiers().contains(Modifier.STATIC) && method.getModifiers().contains(Modifier.PUBLIC)) {
Element nested = types.asElement(method.getReturnType());
if (nested instanceof TypeElement && element.getEnclosedElements().contains(nested)
&& method.getParameters().isEmpty()) {
if (builderType != null && !builderType.toString().equals(nested.toString())) continue;
factory = method;
builderType = (TypeElement) nested;
break;
}
}
}
if (builderType == null) return null;
if (build == null) {
for (TypeElement inheritance : getTypeHierarchy(builderType)) {
for (ExecutableElement method : ElementFilter.methodsIn(inheritance.getEnclosedElements())) {
if (method.getParameters().isEmpty() && !method.getModifiers().contains(Modifier.STATIC)
&& types.isSameType(method.getReturnType(), element.asType())) {
build = method;
break;
}
}
}
if (build == null) return null;
}
AnnotationMirror annotation = getAnnotation(build, discoveredBy);
List ctors = findMatchingConstructors(builderType);
ExecutableElement ctor = ctors != null && ctors.size() == 1 ? ctors.get(0) : null;
return new BuilderInfo(factory, ctor, builderType, build, annotation);
}
private enum PartKind {
UNKNOWN, RAW_TYPE, TYPE_VARIABLE, OTHER
}
private Map analyzeParts(TypeMirror target) {
Map parts = new HashMap();
Set used = new HashSet();
analyzePartsRecursively(target, parts, used);
return parts;
}
private void analyzePartsRecursively(TypeMirror target, Map parts, Set usedTypes) {
String typeName = target.toString();
if (typeSupport.isSupported(typeName)) {
usedTypes.add(target);
if (isRawType(target)) {
parts.put(typeName, PartKind.RAW_TYPE);
} else {
parts.put(typeName, PartKind.OTHER);
}
return;
}
switch (target.getKind()) {
case ARRAY:
ArrayType at = (ArrayType) target;
analyzePartsRecursively(at.getComponentType(), parts, usedTypes);
break;
case DECLARED:
DeclaredType declaredType = (DeclaredType) target;
List typeArguments = declaredType.getTypeArguments();
String rawTypeName = declaredType.asElement().toString();
usedTypes.add(declaredType.asElement().asType());
StructInfo struct = structs.get(rawTypeName);
boolean knownAndValidStruct = struct != null
&& (struct.type != ObjectType.CLASS
|| struct.hasAnnotation()
|| !struct.attributes.isEmpty()
|| !struct.implementations.isEmpty()
|| struct.hasKnownConversion());
if (knownAndValidStruct || typeSupport.isSupported(rawTypeName)) {
if (isRawType(target)) {
parts.put(rawTypeName, PartKind.RAW_TYPE);
} else {
parts.put(rawTypeName, PartKind.OTHER);
}
} else {
parts.put(rawTypeName, PartKind.UNKNOWN);
}
for (TypeMirror typeArgument : typeArguments) {
analyzePartsRecursively(typeArgument, parts, usedTypes);
}
break;
case TYPEVAR:
usedTypes.add(target);
parts.put(typeName, PartKind.TYPE_VARIABLE);
break;
default:
usedTypes.add(target);
parts.put(typeName, PartKind.UNKNOWN);
break;
}
}
private boolean isRawType(TypeMirror target) {
if (target.getKind() == TypeKind.DECLARED) {
DeclaredType declaredType = (DeclaredType) target;
return declaredType.getTypeArguments().isEmpty()
&& !((TypeElement) declaredType.asElement()).getTypeParameters().isEmpty();
}
return false;
}
private static List getEnumConstants(TypeElement element) {
List result = new ArrayList();
for (Element enclosedElement : element.getEnclosedElements()) {
if (enclosedElement.getKind() == ElementKind.ENUM_CONSTANT) {
result.add(enclosedElement.getSimpleName().toString());
}
}
return result;
}
@Nullable
private Element findEnumConstantNameSource(TypeElement element) {
Element nameSource = null;
for (Element enclosedElement : element.getEnclosedElements()) {
if (enclosedElement.getAnnotation(JsonValue.class) != null) {
switch (enclosedElement.getKind()) {
case FIELD:
case METHOD:
if (nameSource == null) {
if (!enclosedElement.getModifiers().contains(Modifier.PUBLIC)) {
printError((enclosedElement.getKind().isField() ? "Field '" : "Method '") + enclosedElement.toString() +
"' annotated with @JsonValue must be public.", enclosedElement);
} else if (!isSupportedEnumNameType(enclosedElement)) {
printError((enclosedElement.getKind().isField() ? "Field '" : "Method '") + enclosedElement.toString() +
"' annotated with @JsonValue must be of a supported type. Unknown types can be supported by enabling unknown types configuration option or whitelisting that specific unknown type", enclosedElement);
} else {
nameSource = enclosedElement;
}
} else {
printError("Duplicate @JsonValue annotation found. Only one enum field or getter can be annotated.", enclosedElement);
}
break;
default:
printError("Unexpected @JsonValue annotation found. It must be placed on enum field or getter.", enclosedElement);
}
}
}
return nameSource;
}
private boolean isSupportedEnumNameType(Element element) {
String enumNameType = extractReturnType(element);
if (enumNameType == null) return false;
if (typeSupport.isSupported(enumNameType) || unknownTypes == UnknownTypes.ALLOW) return true;
StructInfo target = structs.get(enumNameType);
if (target != null && target.hasKnownConversion()) return true;
if (unknownTypes == UnknownTypes.WARNING) {
messager.printMessage(
Diagnostic.Kind.WARNING,
(element.getKind().isField() ? "Field '" : "Method '") + element.toString() +
"' annotated with @JsonValue is of unknown type.",
element);
return true;
}
return false;
}
@Nullable
private String extractReturnType(Element element) {
switch (element.getKind()) {
case FIELD: return element.asType().toString();
case METHOD: return ((ExecutableElement) element).getReturnType().toString();
default: return null;
}
}
private void printError(String message, Element element) {
hasError = true;
messager.printMessage(Diagnostic.Kind.ERROR, message, element);
}
@Nullable
private String jsonObjectReaderPath(Element el, boolean includeErrors) {
if (!(el instanceof TypeElement)) return null;
TypeElement element = (TypeElement)el;
boolean isJsonObject = false;
for (TypeMirror type : element.getInterfaces()) {
if (JsonObject.class.getName().equals(type.toString())) {
isJsonObject = true;
break;
}
}
if (!isJsonObject) return null;
VariableElement jsonReaderField = null;
ExecutableElement jsonReaderMethod = null;
Element companion = null;
for (VariableElement field : ElementFilter.fieldsIn(el.getEnclosedElements())) {
//Kotlin uses Companion field with static get method
if ("Companion".equals(field.getSimpleName().toString())) {
if (field.asType().toString().equals(el.asType().toString() + ".Companion")
&& field.getModifiers().contains(Modifier.STATIC)
&& field.getModifiers().contains(Modifier.PUBLIC)
&& field.getModifiers().contains(Modifier.FINAL)) {
companion = types.asElement(field.asType());
}
} else if ("JSON_READER".equals(field.getSimpleName().toString())) {
jsonReaderField = field;
}
}
String signatureType = "com.dslplatform.json.JsonReader.ReadJsonObject<" + element.getQualifiedName() + ">";
if (!onlyBasicFeatures && companion != null && companion.getModifiers().contains(Modifier.STATIC)) {
for (ExecutableElement method : ElementFilter.methodsIn(companion.getEnclosedElements())) {
if ("JSON_READER".equals(method.getSimpleName().toString()) || "getJSON_READER".equals(method.getSimpleName().toString())) {
jsonReaderMethod = method;
}
}
}
String used = jsonReaderMethod != null ? jsonReaderMethod.getSimpleName() + " method" : "JSON_READER field";
if (includeErrors) {
if (!el.getModifiers().contains(Modifier.PUBLIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + element.getQualifiedName() + "' is 'com.dslplatform.json.JsonObject', but it's not public. " +
"Make it public so it can be used for serialization/deserialization.",
el,
getAnnotation(el, converterType));
} else if (element.getNestingKind().isNested() && !el.getModifiers().contains(Modifier.STATIC)) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + element.getQualifiedName() + "' is 'com.dslplatform.json.JsonObject', but it cant be non static nested member. " +
"Add static modifier so it can be used for serialization/deserialization.",
el,
getAnnotation(el, converterType));
} else if (onlyBasicFeatures && (element.getQualifiedName().contentEquals(element.getSimpleName())
|| element.getNestingKind().isNested() && element.getModifiers().contains(Modifier.STATIC)
&& element.getEnclosingElement() instanceof TypeElement
&& ((TypeElement) element.getEnclosingElement()).getQualifiedName().contentEquals(element.getEnclosingElement().getSimpleName()))) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + element.getQualifiedName() + "' is 'com.dslplatform.json.JsonObject', but its defined without a package name and cannot be accessed. " +
"Either add package to it or use a different analysis configuration which support classes without packages.",
element,
getAnnotation(element, converterType));
} else if (jsonReaderField == null && jsonReaderMethod == null) {
String allowed = onlyBasicFeatures ? "field" : "field/method";
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + element.getQualifiedName() + "' is 'com.dslplatform.json.JsonObject', but it doesn't have JSON_READER " + allowed + ". " +
"It can't be used for serialization/deserialization this way. " +
"You probably want to add public static JSON_READER " + allowed + ".",
element,
getAnnotation(element, converterType));
} else if (jsonReaderMethod == null && (!jsonReaderField.getModifiers().contains(Modifier.PUBLIC) || !jsonReaderField.getModifiers().contains(Modifier.STATIC))
|| jsonReaderMethod != null && (!jsonReaderMethod.getModifiers().contains(Modifier.PUBLIC) || jsonReaderMethod.getModifiers().contains(Modifier.STATIC))) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + element.getQualifiedName() + "' is 'com.dslplatform.json.JsonObject', but its " + used + " is not public and static. " +
"It can't be used for serialization/deserialization this way. " +
"You probably want to change " + used + " so it's public and static.",
element,
getAnnotation(element, converterType));
} else if (jsonReaderField != null && !signatureType.equals(jsonReaderField.asType().toString())
|| jsonReaderMethod != null && !signatureType.equals(jsonReaderMethod.getReturnType().toString())) {
hasError = true;
messager.printMessage(
Diagnostic.Kind.ERROR,
"'" + element.getQualifiedName() + "' is 'com.dslplatform.json.JsonObject', but its " + used + " is not of correct type. " +
"It can't be used for serialization/deserialization this way. " +
"You probably want to change " + used + " to: '" + signatureType + "'",
element,
getAnnotation(element, converterType));
}
}
String prefix = companion == null ? "" : "Companion.";
return prefix + (jsonReaderMethod != null ? jsonReaderMethod.getSimpleName().toString() + "()" : "JSON_READER");
}
public static class AccessElements {
public final ExecutableElement read;
public final ExecutableElement write;
public final VariableElement field;
public final VariableElement arg;
public final AnnotationMirror annotation;
private AccessElements(
@Nullable ExecutableElement read,
@Nullable ExecutableElement write,
@Nullable VariableElement arg,
@Nullable VariableElement field,
@Nullable AnnotationMirror annotation) {
this.read = read;
this.write = write;
this.field = field;
this.arg = arg;
this.annotation = annotation;
}
public static AccessElements readWrite(ExecutableElement read, ExecutableElement write, @Nullable AnnotationMirror annotation) {
return new AccessElements(read, write, null, null, annotation);
}
public static AccessElements field(VariableElement field, VariableElement arg, @Nullable AnnotationMirror annotation) {
return new AccessElements(null, null, arg, field, annotation);
}
public static AccessElements readOnly(ExecutableElement read, VariableElement arg, @Nullable AnnotationMirror annotation) {
return new AccessElements(read, null, arg, null, annotation);
}
public static AccessElements readOnly(VariableElement field, ExecutableElement write, @Nullable AnnotationMirror annotation) {
return new AccessElements(null, write, null, field, annotation);
}
}
private Map getArguments(@Nullable ExecutableElement element) {
if (element == null) return Collections.emptyMap();
Map arguments = new HashMap();
for (VariableElement p : element.getParameters()) {
arguments.put(p.getSimpleName().toString(), p);
}
return arguments;
}
private boolean isCompatibileType(TypeMirror left, TypeMirror right) {
if (left.equals(right)) return true;
final String leftStr = left.toString();
final String rightStr = right.toString();
if (leftStr.equals(rightStr)) return true;
int ind = leftStr.indexOf('<');
if (ind == -1 || rightStr.indexOf('<') != ind) return false;
if (left.getKind() != right.getKind()) return false;
if (!leftStr.substring(0, ind).equals(rightStr.substring(0, ind))) return false;
return types.isAssignable(right, left);
}
private boolean isCompatibileCollection(TypeMirror left, TypeMirror rawCollection) {
final String leftStr = left.toString();
final String rightStr = rawCollection.toString();
if (leftStr.equals(rightStr)) return true;
if (left.getKind() != rawCollection.getKind()) return false;
TypeMirror leftRaw = types.erasure(left);
return types.isAssignable(rawCollection, leftRaw);
}
public static String beanOrActualName(String name) {
if ((name.startsWith("get") || name.startsWith("set")) && name.length() > 3) {
String after = name.substring(3);
if (name.length() == 4) return after.toLowerCase();
return after.toUpperCase().equals(after)
? after
: Character.toLowerCase(after.charAt(0)) + after.substring(1);
}
return name;
}
public Map getBeanProperties(
TypeElement element,
Map arguments) {
Map setters = new HashMap();
Map getters = new HashMap();
for (TypeElement inheritance : getTypeHierarchy(element)) {
boolean isPublicInterface = inheritance.getKind() == ElementKind.INTERFACE
&& inheritance.getModifiers().contains(Modifier.PUBLIC);
for (ExecutableElement method : ElementFilter.methodsIn(inheritance.getEnclosedElements())) {
String name = method.getSimpleName().toString();
if (name.length() < 4) {
continue;
}
boolean isAccessible = isPublicInterface && !method.getModifiers().contains(Modifier.PRIVATE)
|| method.getModifiers().contains(Modifier.PUBLIC)
&& !method.getModifiers().contains(Modifier.STATIC)
&& !method.getModifiers().contains(Modifier.NATIVE)
&& !method.getModifiers().contains(Modifier.TRANSIENT)
&& !method.getModifiers().contains(Modifier.ABSTRACT);
AnnotationMirror annotation = getAnnotation(method, attributeType);
boolean producesWarning = !isAccessible && annotation != null;
String property = beanOrActualName(name);
if (name.startsWith("get")
&& method.getParameters().size() == 0
&& method.getReturnType() != null) {
if (producesWarning) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible bean getter method which is ignored during processing. Put annotation on public method instead.",
method,
annotation);
} else if (!getters.containsKey(property)) {
getters.put(property, method);
}
} else if (name.startsWith("set") && method.getParameters().size() == 1) {
if (producesWarning) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible bean setter method which is ignored during processing. Put annotation on public method instead.",
method,
annotation);
} else {
setters.put(property, method);
}
}
}
}
return findMatchingResult(setters, getters, arguments);
}
private Map findMatchingResult(
Map setters,
Map getters,
Map arguments) {
Map result = new HashMap();
for (Map.Entry kv : getters.entrySet()) {
ExecutableElement setter = setters.get(kv.getKey());
VariableElement setterArgument = setter == null ? null : setter.getParameters().get(0);
VariableElement arg = arguments.get(kv.getKey());
String returnType = kv.getValue().getReturnType().toString();
AnnotationMirror annotation = annotation(kv.getValue(), setter, null, arg);
if (setterArgument != null && setterArgument.asType().toString().equals(returnType)) {
result.put(kv.getKey(), AccessElements.readWrite(kv.getValue(), setter, annotation));
} else if (setterArgument != null && (setterArgument.asType() + "<").startsWith(returnType)) {
result.put(kv.getKey(), AccessElements.readWrite(kv.getValue(), setter, annotation));
} else if (!onlyBasicFeatures && arg != null && isCompatibileType(arg.asType(), kv.getValue().getReturnType())) {
result.put(kv.getKey(), AccessElements.readOnly(kv.getValue(), arg, annotation));
}
}
return result;
}
public Map getExactProperties(
TypeElement element,
Map arguments) {
Map setters = new HashMap();
Map getters = new HashMap();
for (TypeElement inheritance : getTypeHierarchy(element)) {
boolean isPublicInterface = inheritance.getKind() == ElementKind.INTERFACE
&& inheritance.getModifiers().contains(Modifier.PUBLIC);
for (ExecutableElement method : ElementFilter.methodsIn(inheritance.getEnclosedElements())) {
String name = method.getSimpleName().toString();
if (name.startsWith("get") || name.startsWith("set")) {
continue;
}
boolean isAccessible = isPublicInterface && !method.getModifiers().contains(Modifier.PRIVATE)
|| method.getModifiers().contains(Modifier.PUBLIC)
&& !method.getModifiers().contains(Modifier.STATIC)
&& !method.getModifiers().contains(Modifier.NATIVE)
&& !method.getModifiers().contains(Modifier.TRANSIENT)
&& !method.getModifiers().contains(Modifier.ABSTRACT);
AnnotationMirror annotation = getAnnotation(method, attributeType);
boolean producesWarning = !isAccessible && annotation != null;
if (method.getParameters().size() == 0 && method.getReturnType() != null) {
if (producesWarning) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible setter method which is ignored during processing. Put annotation on public method instead.",
method,
annotation);
} else if (!getters.containsKey(name)) {
getters.put(name, method);
}
} else if (method.getParameters().size() == 1) {
if (producesWarning) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible setter method which is ignored during processing. Put annotation on public method instead.",
method,
annotation);
} else {
setters.put(name, method);
}
}
}
}
return findMatchingResult(setters, getters, arguments);
}
public Map getPublicFields(
TypeElement element,
Map arguments) {
Map result = new HashMap();
for (TypeElement inheritance : getTypeHierarchy(element)) {
for (VariableElement field : ElementFilter.fieldsIn(inheritance.getEnclosedElements())) {
String name = field.getSimpleName().toString();
boolean isFinal = field.getModifiers().contains(Modifier.FINAL);
VariableElement arg = arguments.get(name);
boolean isAccessible = field.getModifiers().contains(Modifier.PUBLIC)
&& (!isFinal || arg != null)
&& !field.getModifiers().contains(Modifier.NATIVE)
&& !field.getModifiers().contains(Modifier.TRANSIENT)
&& !field.getModifiers().contains(Modifier.STATIC);
if (!isAccessible) {
AnnotationMirror fieldAnnotation = getAnnotation(field, attributeType);
if (fieldAnnotation != null) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible field which is ignored during processing. Put annotation on public field instead.",
field,
fieldAnnotation);
}
continue;
}
AnnotationMirror annotation = annotation(null, null, field, arg);
result.put(name, AccessElements.field(field, arg, annotation));
}
}
return result;
}
public Map getBuilderProperties(
TypeElement element,
BuilderInfo builder,
boolean withBeans,
boolean withExact,
boolean withFields) {
Map setters = new HashMap();
Map getters = new HashMap();
Map fields = new HashMap();
TypeMirror builderType = builder.type.asType();
for (TypeElement inheritance : getTypeHierarchy(element)) {
boolean isPublicInterface = inheritance.getKind() == ElementKind.INTERFACE
&& inheritance.getModifiers().contains(Modifier.PUBLIC);
for (ExecutableElement method : ElementFilter.methodsIn(inheritance.getEnclosedElements())) {
String name = method.getSimpleName().toString();
boolean isAccessible = isPublicInterface && !method.getModifiers().contains(Modifier.PRIVATE)
|| method.getModifiers().contains(Modifier.PUBLIC)
&& !method.getModifiers().contains(Modifier.STATIC)
&& !method.getModifiers().contains(Modifier.NATIVE)
&& !method.getModifiers().contains(Modifier.TRANSIENT);
if (!isAccessible) {
if (getAnnotation(method, attributeType) != null) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible builder method which is ignored during processing. Put annotation on public method instead.",
element);
}
continue;
}
final String property = Analysis.beanOrActualName(name);
if (method.getParameters().size() == 0 && method.getReturnType() != null) {
boolean canAdd = withExact || withBeans && name.startsWith("get") && name.length() > 4;
if (canAdd && !getters.containsKey(property)) {
getters.put(property, method);
}
}
}
if (withFields) {
for (VariableElement field : ElementFilter.fieldsIn(inheritance.getEnclosedElements())) {
String name = field.getSimpleName().toString();
boolean isFinal = field.getModifiers().contains(Modifier.FINAL);
boolean isAccessible = field.getModifiers().contains(Modifier.PUBLIC)
&& !field.getModifiers().contains(Modifier.NATIVE)
&& !field.getModifiers().contains(Modifier.TRANSIENT)
&& !field.getModifiers().contains(Modifier.STATIC);
if (!isAccessible || !isFinal) {
if (getAnnotation(field, attributeType) != null) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible builder field which is ignored during processing. Put annotation on public field instead.",
element);
}
continue;
}
fields.put(name, field);
}
}
}
for (TypeElement inheritance : getTypeHierarchy(builder.type)) {
for (ExecutableElement method : ElementFilter.methodsIn(inheritance.getEnclosedElements())) {
String name = method.getSimpleName().toString();
boolean isAccessible = !method.getModifiers().contains(Modifier.PRIVATE)
|| method.getModifiers().contains(Modifier.PUBLIC)
&& !method.getModifiers().contains(Modifier.STATIC)
&& !method.getModifiers().contains(Modifier.NATIVE)
&& !method.getModifiers().contains(Modifier.TRANSIENT);
if (!isAccessible) {
if (getAnnotation(method, attributeType) != null) {
messager.printMessage(
Diagnostic.Kind.WARNING,
attributeType.toString() + " detected on non accessible builder method which is ignored during processing. Put annotation on public method instead.",
element);
}
continue;
}
String property = beanOrActualName(name);
if (method.getParameters().size() == 1 && types.isSameType(method.getReturnType(), builderType)) {
boolean canAdd = withExact || withBeans && name.startsWith("set") && name.length() > 4;
if (canAdd && !setters.containsKey(property)) {
setters.put(property, method);
}
}
}
}
Map result = new HashMap();
for (Map.Entry kv : getters.entrySet()) {
ExecutableElement setter = setters.get(kv.getKey());
VariableElement setArg = setter == null ? null : setter.getParameters().get(0);
String returnType = kv.getValue().getReturnType().toString();
AnnotationMirror annotation = annotation(kv.getValue(), setter, null, null);
if (setArg != null && (setArg.asType().toString().equals(returnType) || (setArg.asType() + "<").startsWith(returnType))) {
result.put(kv.getKey(), AccessElements.readWrite(kv.getValue(), setter, annotation));
}
}
for (Map.Entry kv : fields.entrySet()) {
if (result.containsKey(kv.getKey())) continue;
ExecutableElement setter = setters.get(kv.getKey());
VariableElement setArg = setter == null ? null : setter.getParameters().get(0);
String returnType = kv.getValue().asType().toString();
AnnotationMirror annotation = annotation(null, setter, kv.getValue(), null);
if (setArg != null && (setArg.asType().toString().equals(returnType) || (setArg.asType() + "<").startsWith(returnType))) {
result.put(kv.getKey(), AccessElements.readOnly(kv.getValue(), setter, annotation));
}
}
return result;
}
public void findImplementations(Collection structs) {
for (StructInfo current : structs) {
if (current.type == ObjectType.MIXIN) {
String signature = current.element.asType().toString();
for (StructInfo info : structs) {
if (info.type == ObjectType.CLASS) {
checkParentSignatures(info, info.element, current.implementations, signature, new HashSet());
}
}
}
}
}
private void checkParentSignatures(StructInfo info, TypeElement element, Set implementations, String signature, Set processed) {
if (!processed.add(element) || element.getQualifiedName().contentEquals("java.lang.Object")) return;
if (element.asType().toString().equals(signature)) {
implementations.add(info);
}
for (TypeMirror type : types.directSupertypes(element.asType())) {
Element current = types.asElement(type);
if (current instanceof TypeElement) {
checkParentSignatures(info, (TypeElement) current, implementations, signature, processed);
}
}
}
@Nullable
private String[] getAlternativeNames(AnnotationMirror dslAnn) {
Map values = dslAnn.getElementValues();
for (Map.Entry ee : values.entrySet()) {
if (ee.getKey().toString().equals("alternativeNames()")) {
@SuppressWarnings("unchecked")
List val = (List) ee.getValue().getValue();
if (val == null) return null;
String[] names = new String[val.size()];
for (int i = 0; i < val.size(); i++) {
names[i] = val.get(i).getValue().toString();
}
return names;
}
}
return null;
}
public boolean isFullMatch(Element property, @Nullable AnnotationMirror dslAnn) {
if (dslAnn == null) return false;
Map values = dslAnn.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("hashMatch()")) {
Object val = values.get(ee).getValue();
return val != null && !((Boolean) val);
}
}
return false;
}
public int index(Element property, @Nullable AnnotationMirror dslAnn) {
if (dslAnn != null) {
Map values = dslAnn.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("index()")) {
Object val = values.get(ee).getValue();
if (val == null) return -1;
return (Integer) val;
}
}
}
for (AnnotationMirror ann : property.getAnnotationMirrors()) {
Integer index = matchCustomInteger(ann, alternativeIndex);
if (index != null && index != -1) return index;
}
return -1;
}
@Nullable
private AnnotationMirror annotation(
@Nullable ExecutableElement read,
@Nullable ExecutableElement write,
@Nullable VariableElement field,
@Nullable VariableElement arg) {
AnnotationMirror dslAnn = read == null ? null : getAnnotation(read, attributeType);
if (dslAnn != null) return dslAnn;
dslAnn = write == null ? null : getAnnotation(write, attributeType);
if (dslAnn != null) return dslAnn;
dslAnn = field == null ? null : getAnnotation(field, attributeType);
if (dslAnn != null) return dslAnn;
return arg == null ? null : getAnnotation(arg, attributeType);
}
public boolean hasIgnoredAnnotation(Element property) {
AnnotationMirror dslAnn = getAnnotation(property, attributeType);
if (dslAnn != null) {
return booleanAnnotationValue(dslAnn, "ignore()", false);
}
for (AnnotationMirror ann : property.getAnnotationMirrors()) {
if (alternativeIgnore.contains(ann.getAnnotationType().toString())) {
return true;
}
}
return false;
}
@Nullable
private AnnotationMirror scanClassForAnnotation(TypeElement element, DeclaredType annotationType, @Nullable ExecutableElement custom) {
AnnotationMirror target = custom != null ? getAnnotation(custom, annotationType) : null;
if (target != null) return target;
target = getAnnotation(element, annotationType);
if (target != null) return target;
for (ExecutableElement method : ElementFilter.methodsIn(element.getEnclosedElements())) {
AnnotationMirror discAnn = getAnnotation(method, annotationType);
if (discAnn != null) return discAnn;
}
for (ExecutableElement constructor : ElementFilter.constructorsIn(element.getEnclosedElements())) {
AnnotationMirror discAnn = getAnnotation(constructor, annotationType);
if (discAnn != null) return discAnn;
}
return null;
}
@Nullable
public AnnotationMirror getAnnotation(Element element, DeclaredType annotationType) {
for (AnnotationMirror mirror : element.getAnnotationMirrors()) {
if (types.isSameType(mirror.getAnnotationType(), annotationType)) {
return mirror;
}
}
return null;
}
public boolean hasNonNullable(Element property, @Nullable AnnotationMirror dslAnn) {
if (dslAnn != null) {
Map values = dslAnn.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("nullable()")) {
Object val = values.get(ee).getValue();
return val != null && !((Boolean) val);
}
}
return false;
}
for (AnnotationMirror ann : property.getAnnotationMirrors()) {
Boolean match = matchCustomBoolean(ann, alternativeNonNullable);
if (match != null) return match;
}
return false;
}
@Nullable
public static TypeElement deserializeAs(AnnotationMirror annotation) {
Map values = annotation.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("deserializeAs()")) {
DeclaredType target = (DeclaredType) values.get(ee).getValue();
return (TypeElement) target.asElement();
}
}
return null;
}
public static String classDiscriminator(@Nullable AnnotationMirror annotation) {
if (annotation == null) return "";
Map values = annotation.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("discriminator()")) {
return values.get(ee).getValue().toString();
}
}
return "";
}
public static String className(@Nullable AnnotationMirror annotation) {
if (annotation == null) return "";
Map values = annotation.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("name()")) {
return values.get(ee).getValue().toString();
}
}
return "";
}
public boolean hasMandatoryAnnotation(Element property, @Nullable AnnotationMirror dslAnn) {
if (dslAnn != null) {
return booleanAnnotationValue(dslAnn, "mandatory()", false);
}
for (AnnotationMirror ann : property.getAnnotationMirrors()) {
Boolean match = matchCustomBoolean(ann, alternativeMandatory);
if (match != null) return match;
}
return false;
}
public static boolean booleanAnnotationValue(AnnotationMirror ann, String method, boolean defaultValue) {
Map values = ann.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals(method)) {
Object val = values.get(ee).getValue();
return val == null ? defaultValue : (Boolean) val;
}
}
return defaultValue;
}
@Nullable
private CompiledJson.Behavior onUnknownValue(@Nullable AnnotationMirror annotation) {
return enumAnnotationElementValue(annotation, "onUnknown()", CompiledJson.Behavior.class);
}
@Nullable
private CompiledJson.TypeSignature typeSignatureValue(@Nullable AnnotationMirror annotation) {
return enumAnnotationElementValue(annotation, "typeSignature()", CompiledJson.TypeSignature.class);
}
private CompiledJson.ObjectFormatPolicy objectFormatPolicyValue(@Nullable AnnotationMirror annotation) {
CompiledJson.ObjectFormatPolicy value = enumAnnotationElementValue(annotation,
"objectFormatPolicy()", CompiledJson.ObjectFormatPolicy.class);
return value != null ? value : CompiledJson.ObjectFormatPolicy.DEFAULT;
}
private JsonAttribute.IncludePolicy includeToMinimalValue(@Nullable AnnotationMirror annotation) {
JsonAttribute.IncludePolicy value = enumAnnotationElementValue(annotation,
"includeToMinimal()", JsonAttribute.IncludePolicy.class);
return value != null ? value : JsonAttribute.IncludePolicy.NON_DEFAULT;
}
public CompiledJson.Format[] getFormats(@Nullable AnnotationMirror ann) {
if (ann == null) return new CompiledJson.Format[]{CompiledJson.Format.OBJECT};
Map values = ann.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if ("formats()".equals(ee.toString())) {
Object val = values.get(ee).getValue();
if (val == null) return new CompiledJson.Format[]{CompiledJson.Format.OBJECT};
List list = (List)val;
CompiledJson.Format[] result = new CompiledJson.Format[list.size()];
for (int i = 0; i < result.length; i++) {
AnnotationValue enumVal = (AnnotationValue)list.get(i);
result[i] = CompiledJson.Format.valueOf(enumVal.getValue().toString());
}
return result;
}
}
return new CompiledJson.Format[]{CompiledJson.Format.OBJECT};
}
@Nullable
private static > T enumAnnotationElementValue(@Nullable AnnotationMirror annotation,
String elementName, Class enumClass) {
if (annotation == null) return null;
Map values = annotation.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals(elementName)) {
Object val = values.get(ee).getValue();
if (val == null) return null;
return T.valueOf(enumClass, val.toString());
}
}
return null;
}
public boolean isMinified(@Nullable AnnotationMirror ann) {
if (ann == null) return false;
for (ExecutableElement ee : ann.getElementValues().keySet()) {
if ("minified()".equals(ee.toString())) {
AnnotationValue minified = ann.getElementValues().get(ee);
return (Boolean) minified.getValue();
}
}
return false;
}
@Nullable
public TypeMirror findConverter(Element property) {
return findConverter(getAnnotation(property, attributeType));
}
@Nullable
private TypeMirror findConverter(@Nullable AnnotationMirror dslAnn) {
if (dslAnn == null) return null;
Map values = dslAnn.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("converter()")) {
TypeMirror mirror = (TypeMirror) values.get(ee).getValue();
return mirror != null && mirror.toString().equals(JsonAttribute.class.getName()) ? null : mirror;
}
}
return null;
}
@Nullable
public String findNameAlias(Element property, @Nullable AnnotationMirror dslAnn) {
if (dslAnn != null) {
Map values = dslAnn.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals("name()")) {
String val = (String) values.get(ee).getValue();
if (val != null && val.length() == 0) return null;
return val;
}
}
return null;
}
for (AnnotationMirror ann : property.getAnnotationMirrors()) {
String name = matchCustomString(ann, alternativeAlias);
if (name != null && !name.isEmpty()) return name;
}
return null;
}
@Nullable
private static Boolean matchCustomBoolean(
AnnotationMirror ann,
Map>> alternatives) {
String name = ann.getAnnotationType().toString();
if (alternatives.containsKey(name)) {
List> mappings = alternatives.get(name);
if (mappings == null || mappings.isEmpty()) return true;
for (AnnotationMapping m : mappings) {
Map values = ann.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals(m.name)) {
Object val = values.get(ee).getValue();
if (val == null && m.value == null) return true;
return val != null && val == m.value;
}
}
}
}
return null;
}
@Nullable
private static String matchCustomString(
AnnotationMirror ann,
Map alternatives) {
String value = alternatives.get(ann.getAnnotationType().toString());
if (value != null) {
Map values = ann.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals(value)) {
AnnotationValue val = values.get(ee);
if (val == null) return null;
if (val.getValue() == null) return null;
return val.getValue().toString();
}
}
}
return null;
}
@Nullable
private static Integer matchCustomInteger(
AnnotationMirror ann,
Map alternatives) {
String value = alternatives.get(ann.getAnnotationType().toString());
if (value != null) {
Map values = ann.getElementValues();
for (ExecutableElement ee : values.keySet()) {
if (ee.toString().equals(value)) {
AnnotationValue val = values.get(ee);
if (val == null) return null;
if (val.getValue() == null) return null;
return (Integer)val.getValue();
}
}
}
return null;
}
}
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