com.google.gwt.validation.rebind.GwtSpecificValidatorCreator Maven / Gradle / Ivy
/*
* Copyright 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.validation.rebind;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.UnsafeNativeLong;
import com.google.gwt.core.ext.Generator;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.JField;
import com.google.gwt.core.ext.typeinfo.JMethod;
import com.google.gwt.core.ext.typeinfo.JPrimitiveType;
import com.google.gwt.core.ext.typeinfo.JType;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.dev.jjs.ast.JProgram;
import com.google.gwt.thirdparty.guava.common.base.Function;
import com.google.gwt.thirdparty.guava.common.base.Functions;
import com.google.gwt.thirdparty.guava.common.base.Joiner;
import com.google.gwt.thirdparty.guava.common.base.Predicate;
import com.google.gwt.thirdparty.guava.common.collect.ImmutableList;
import com.google.gwt.thirdparty.guava.common.collect.ImmutableSet;
import com.google.gwt.thirdparty.guava.common.collect.Iterables;
import com.google.gwt.thirdparty.guava.common.collect.Maps;
import com.google.gwt.thirdparty.guava.common.collect.Ordering;
import com.google.gwt.thirdparty.guava.common.collect.Sets;
import com.google.gwt.thirdparty.guava.common.primitives.Primitives;
import com.google.gwt.user.rebind.ClassSourceFileComposerFactory;
import com.google.gwt.user.rebind.SourceWriter;
import com.google.gwt.validation.client.impl.AbstractGwtSpecificValidator;
import com.google.gwt.validation.client.impl.ConstraintDescriptorImpl;
import com.google.gwt.validation.client.impl.GwtBeanDescriptor;
import com.google.gwt.validation.client.impl.GwtBeanDescriptorImpl;
import com.google.gwt.validation.client.impl.GwtValidationContext;
import com.google.gwt.validation.client.impl.PropertyDescriptorImpl;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import javax.validation.Constraint;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintViolation;
import javax.validation.Payload;
import javax.validation.UnexpectedTypeException;
import javax.validation.Valid;
import javax.validation.ValidationException;
import javax.validation.metadata.BeanDescriptor;
import javax.validation.metadata.ConstraintDescriptor;
import javax.validation.metadata.PropertyDescriptor;
/**
* EXPERIMENTAL and subject to change. Do not use this in
* production code.
*
* Creates a {@link com.google.gwt.validation.client.GwtSpecificValidator}.
*
* This class is not thread safe.
*/
public class GwtSpecificValidatorCreator extends AbstractCreator {
private static enum Stage {
OBJECT, PROPERTY, VALUE
}
static final JType[] NO_ARGS = new JType[]{};
private static final String DEFAULT_VIOLATION_VAR = "violations";
private static final Annotation[] NO_ANNOTATIONS = new Annotation[]{};
private static Function
PROPERTY_DESCRIPTOR_TO_NAME =
new Function() {
public String apply(java.beans.PropertyDescriptor pd) {
return pd.getName();
}
};
private static Function TO_LITERAL = new Function() {
public String apply(Object input) {
return asLiteral(input);
}
};
public static String asGetter(PropertyDescriptor p) {
return "get" + capitalizeFirstLetter(p.getPropertyName());
}
/**
* Returns the literal value of an object that is suitable for inclusion in
* Java Source code.
*
*
* Supports all types that {@link Annotation) value can have.
*
*
* @throws IllegalArgumentException if the type of the object does not have a java literal form.
*/
public static String asLiteral(Object value) throws IllegalArgumentException {
Class clazz = value.getClass();
JProgram jProgram = new JProgram();
if (clazz.isArray()) {
StringBuilder sb = new StringBuilder();
Object[] array = (Object[]) value;
sb.append("new " + clazz.getComponentType().getCanonicalName() + "[] ");
sb.append("{");
boolean first = true;
for (Object object : array) {
if (first) {
first = false;
} else {
sb.append(",");
}
sb.append(asLiteral(object));
}
sb.append("}");
return sb.toString();
}
if (value instanceof Boolean) {
return jProgram.getLiteralBoolean(((Boolean) value).booleanValue())
.toSource();
} else if (value instanceof Byte) {
return jProgram.getLiteralInt(((Byte) value).byteValue()).toSource();
} else if (value instanceof Character) {
return jProgram.getLiteralChar(((Character) value).charValue())
.toSource();
} else if (value instanceof Class) {
return ((Class) ((Class) value)).getCanonicalName() + ".class";
} else if (value instanceof Double) {
return jProgram.getLiteralDouble(((Double) value).doubleValue())
.toSource();
} else if (value instanceof Enum) {
return value.getClass().getCanonicalName() + "."
+ ((Enum) value).name();
} else if (value instanceof Float) {
return jProgram.getLiteralFloat(((Float) value).floatValue()).toSource();
} else if (value instanceof Integer) {
return jProgram.getLiteralInt(((Integer) value).intValue()).toSource();
} else if (value instanceof Long) {
return jProgram.getLiteralLong(((Long) value).intValue()).toSource();
} else if (value instanceof String) {
return '"' + Generator.escape((String) value) + '"';
} else {
// TODO(nchalko) handle Annotation types
throw new IllegalArgumentException(value.getClass()
+ " can not be represented as a Java Literal.");
}
}
public static String capitalizeFirstLetter(String propertyName) {
if (propertyName == null) {
return null;
}
if (propertyName.length() == 0) {
return "";
}
String cap = propertyName.substring(0, 1).toUpperCase();
if (propertyName.length() > 1) {
cap += propertyName.substring(1);
}
return cap;
}
public static boolean isIterableOrMap(Class elementClass) {
// TODO(nchalko) handle iterables everywhere this is called.
return elementClass.isArray()
|| Iterable.class.isAssignableFrom(elementClass)
|| Map.class.isAssignableFrom(elementClass);
}
static Class getTypeOfConstraintValidator(
Class> constraintClass) {
for (Method method : constraintClass.getMethods()) {
if (method.getName().equals("isValid")
&& method.getParameterTypes().length == 2
&& method.getReturnType().isAssignableFrom(Boolean.TYPE)) {
return method.getParameterTypes()[0];
}
}
throw new IllegalStateException(
"ConstraintValidators must have a isValid method");
}
// Visible for testing
static ImmutableSet>> getValidatorForType(
Class type,
List>> constraintValidatorClasses) {
type = Primitives.wrap(type);
Map, Class>> map = Maps.newHashMap();
for (Class> constraintClass : constraintValidatorClasses) {
Class aType = Primitives.wrap(getTypeOfConstraintValidator(constraintClass));
if (aType.isAssignableFrom(type)) {
map.put(aType, constraintClass);
}
}
// TODO(nchalko) implement per spec
// Handle Arrays and Generics
final Set> best = Util.findBestMatches(type, map.keySet());
Predicate> inBest = new Predicate>() {
public boolean apply(Class key) {
return best.contains(key);
}
};
return ImmutableSet.copyOf(Maps.filterKeys(map, inBest).values());
}
/**
* Gets the best {@link ConstraintValidator}.
*
*
* The ConstraintValidator chosen to validate a declared type
* {@code targetType} is the one where the type supported by the
* ConstraintValidator is a supertype of {@code targetType} and where there is
* no other ConstraintValidator whose supported type is a supertype of
* {@code type} and not a supertype of the chosen ConstraintValidator
* supported type.
*
* @param constraint the constraint to find ConstraintValidators for.
* @param targetType The type to find a ConstraintValidator for.
* @return ConstraintValidator
*
* @throws UnexpectedTypeException if there is not exactly one maximally
* specific constraint validator for targetType.
*/
private static Class> getValidatorForType(
ConstraintDescriptor constraint, Class targetType)
throws UnexpectedTypeException {
List>> constraintValidatorClasses
= constraint.getConstraintValidatorClasses();
if (constraintValidatorClasses.isEmpty()) {
throw new UnexpectedTypeException("No ConstraintValidator found for "
+ constraint.getAnnotation());
}
ImmutableSet>> best = getValidatorForType(
targetType, constraintValidatorClasses);
if (best.isEmpty()) {
throw new UnexpectedTypeException("No " + constraint.getAnnotation()
+ " ConstraintValidator for type " + targetType);
}
if (best.size() > 1) {
throw new UnexpectedTypeException("More than one maximally specific "
+ constraint.getAnnotation() + " ConstraintValidator for type "
+ targetType + ", found " + Ordering.usingToString().sortedCopy(best));
}
return Iterables.get(best, 0);
}
private final BeanHelper beanHelper;
private final Set beansToValidate = Sets.newHashSet();
private final JClassType beanType;
private final Set fieldsToWrap = Sets.newHashSet();
private Set gettersToWrap = Sets.newHashSet();
private final TypeOracle oracle;
public GwtSpecificValidatorCreator(JClassType validatorType,
JClassType beanType, BeanHelper beanHelper, TreeLogger logger,
GeneratorContext context) {
super(context, logger, validatorType);
this.oracle = context.getTypeOracle();
this.beanType = beanType;
this.beanHelper = beanHelper;
}
@Override
protected void compose(ClassSourceFileComposerFactory composerFactory) {
addImports(composerFactory, Annotation.class, ConstraintViolation.class,
GWT.class, GwtBeanDescriptor.class, GwtValidationContext.class,
HashSet.class, IllegalArgumentException.class, Set.class,
ValidationException.class);
composerFactory.setSuperclass(AbstractGwtSpecificValidator.class.getCanonicalName()
+ "<" + beanType.getQualifiedSourceName() + ">");
composerFactory.addImplementedInterface(validatorType.getName());
}
@Override
protected void writeClassBody(SourceWriter sw)
throws UnableToCompleteException {
writeFields(sw);
sw.println();
writeValidate(sw);
sw.println();
writeValidateProperty(sw);
sw.println();
writeValidateValue(sw);
sw.println();
writeGetDescriptor(sw);
sw.println();
writePropertyValidators(sw);
sw.println();
// Write the wrappers after we know which are needed
writeWrappers(sw);
sw.println();
}
protected void writeUnsafeNativeLongIfNeeded(SourceWriter sw, JType jType) {
if (JPrimitiveType.LONG.equals(jType)) {
// @com.google.gwt.core.client.UnsafeNativeLong
sw.print("@");
sw.println(UnsafeNativeLong.class.getCanonicalName());
}
}
private T[] asArray(Collection collection, T[] array) {
if (collection == null) {
return null;
}
return collection.toArray(array);
}
private String constraintDescriptorVar(String name, int count) {
String s = name + "_c" + count;
return s;
}
private Annotation getAnnotation(PropertyDescriptor p, boolean useField,
Class expectedAnnotationClass) {
Annotation annotation = null;
if (useField) {
JField field = beanType.findField(p.getPropertyName());
if (field.getEnclosingType().equals(beanType)) {
annotation = field.getAnnotation(expectedAnnotationClass);
}
} else {
JMethod method = beanType.findMethod(asGetter(p), NO_ARGS);
if (method.getEnclosingType().equals(beanType)) {
annotation = method.getAnnotation(expectedAnnotationClass);
}
}
return annotation;
}
private Annotation[] getAnnotations(PropertyDescriptor p,
boolean useField) {
Class clazz = beanHelper.getClazz();
if (useField) {
try {
Field field = clazz.getDeclaredField(p.getPropertyName());
return field.getAnnotations();
} catch (NoSuchFieldException ignore) {
// Expected Case
}
} else {
try {
Method method = clazz.getMethod(asGetter(p));
return method.getAnnotations();
} catch (NoSuchMethodException ignore) {
// Expected Case
}
}
return NO_ANNOTATIONS;
}
private String getQualifiedSourceNonPrimitiveType(JType elementType) {
JPrimitiveType primitive = elementType.isPrimitive();
return primitive == null ? elementType.getQualifiedSourceName()
: primitive.getQualifiedBoxedSourceName();
}
private boolean hasMatchingAnnotation(Annotation expectedAnnotation,
Annotation[] annotations) throws UnableToCompleteException {
// See spec section 2.2. Applying multiple constraints of the same type
for (Annotation annotation : annotations) {
// annotations not annotated by @Constraint
if (annotation.annotationType().getAnnotation(Constraint.class) == null) {
try {
// value element has a return type of an array of constraint
// annotations
Method valueMethod = annotation.annotationType().getMethod("value");
Class valueType = valueMethod.getReturnType();
if (valueType.isArray()
&& Annotation.class.isAssignableFrom(valueType.getComponentType())) {
Annotation[] valueAnnotions = (Annotation[]) valueMethod.invoke(annotation);
for (Annotation annotation2 : valueAnnotions) {
if (expectedAnnotation.equals(annotation2)) {
return true;
}
}
}
} catch (NoSuchMethodException ignore) {
// Expected Case.
} catch (Exception e) {
throw error(logger, e);
}
}
}
return false;
}
private boolean hasMatchingAnnotation(ConstraintDescriptor constraint)
throws UnableToCompleteException {
Annotation expectedAnnotation = constraint.getAnnotation();
Class expectedAnnotationClass = expectedAnnotation.annotationType();
if (expectedAnnotation.equals(beanHelper.getClazz().getAnnotation(
expectedAnnotationClass))) {
return true;
}
// See spec section 2.2. Applying multiple constraints of the same type
Annotation[] annotations = beanHelper.getClazz().getAnnotations();
return hasMatchingAnnotation(expectedAnnotation, annotations);
}
private boolean hasMatchingAnnotation(PropertyDescriptor p, boolean useField,
ConstraintDescriptor constraint) throws UnableToCompleteException {
Annotation expectedAnnotation = constraint.getAnnotation();
Class expectedAnnotationClass =
expectedAnnotation.annotationType();
if (expectedAnnotation.equals(getAnnotation(p, useField,
expectedAnnotationClass))) {
return true;
}
return hasMatchingAnnotation(expectedAnnotation,
getAnnotations(p, useField));
}
private boolean hasValid(PropertyDescriptor p, boolean useField) {
return getAnnotation(p, useField, Valid.class) != null;
}
private boolean isPropertyConstrained(BeanHelper helper, PropertyDescriptor p) {
Set propertyDescriptors =
helper.getBeanDescriptor().getConstrainedProperties();
Predicate nameMatches = newPropertyNameMatches(p);
return Iterables.any(propertyDescriptors, nameMatches);
}
private Predicate newPropertyNameMatches(
final PropertyDescriptor p) {
return new Predicate() {
public boolean apply(PropertyDescriptor input) {
return input.getPropertyName().equals(p.getPropertyName());
}
};
}
private String toWrapperName(JField field) {
return "_" + field.getName();
}
/**
* @param method
* @return
*/
private String toWrapperName(JMethod method) {
return "_" + method.getName();
}
private String validateMethodFieldName(PropertyDescriptor p) {
return "validateProperty_" + p.getPropertyName();
}
private String validateMethodGetterName(PropertyDescriptor p) {
return "validateProperty_get" + p.getPropertyName();
}
private void writeBeanDescriptor(SourceWriter sw) {
BeanDescriptor beanDescriptor = beanHelper.getBeanDescriptor();
// private final GwtBeanDescriptor beanDescriptor =
sw.print("private final ");
sw.print(GwtBeanDescriptor.class.getCanonicalName());
sw.print("<" + beanHelper.getTypeCanonicalName() + ">");
sw.println(" beanDescriptor = ");
sw.indent();
sw.indent();
// GwtBeanDescriptorImpl.builder(Order.class)
sw.print(GwtBeanDescriptorImpl.class.getCanonicalName());
sw.println(".builder(" + beanHelper.getTypeCanonicalName() + ".class)");
sw.indent();
sw.indent();
// .setConstrained(true)
sw.println(".setConstrained(" + beanDescriptor.isBeanConstrained() + ")");
for (int count = 0; count < beanDescriptor.getConstraintDescriptors().size(); count++) {
// .add(c0)
sw.println(".add(" + constraintDescriptorVar("this", count) + ")");
}
// .put("myProperty", myProperty_pd)
for (PropertyDescriptor p : beanDescriptor.getConstrainedProperties()) {
sw.print(".put(\"");
sw.print(p.getPropertyName());
sw.print("\", ");
sw.print(p.getPropertyName());
sw.println("_pd)");
}
// .build();
sw.println(".build();");
sw.outdent();
sw.outdent();
sw.outdent();
sw.outdent();
}
private void writeCatchUnexpectedException(SourceWriter sw, String message) {
// } catch (IllegalArgumentException e) {
sw.outdent();
sw.println("} catch (IllegalArgumentException e) {");
sw.indent();
// throw e;
sw.println("throw e;");
// } catch (ValidationException e) {
sw.outdent();
sw.println("} catch (ValidationException e) {");
sw.indent();
// throw e;
sw.println("throw e;");
// } catch (Exception e) {
sw.outdent();
sw.println("} catch (Exception e) {");
sw.indent();
// throw new ValidationException("my message", e);
sw.println("throw new ValidationException(" + message + ", e);");
// }
sw.outdent();
sw.println("}");
}
private void writeConstraintDescriptor(SourceWriter sw,
ConstraintDescriptor constraint,
String constraintDescripotorVar) throws UnableToCompleteException {
Class annotationType =
constraint.getAnnotation().annotationType();
// First list all composing constraints
int count = 0;
for (ConstraintDescriptor composingConstraint :
constraint.getComposingConstraints()) {
writeConstraintDescriptor(sw, composingConstraint,
constraintDescripotorVar + "_" + count++);
}
// private final ConstraintDescriptorImpl constraintDescriptor = ;
sw.print("private final ");
sw.print(ConstraintDescriptorImpl.class.getCanonicalName());
sw.print("<");
sw.print(annotationType.getCanonicalName());
sw.print(">");
sw.println(" " + constraintDescripotorVar + " = ");
sw.indent();
sw.indent();
// ConstraintDescriptorImpl. builder()
sw.print(ConstraintDescriptorImpl.class.getCanonicalName());
sw.print(".<");
sw.print(annotationType.getCanonicalName());
sw.println("> builder()");
sw.indent();
sw.indent();
// .setAnnotation(new MyAnnotation )
sw.println(".setAnnotation( ");
sw.indent();
sw.indent();
writeNewAnnotation(sw, constraint);
sw.println(")");
sw.outdent();
sw.outdent();
// .setAttributes(builder()
sw.println(".setAttributes(attributeBuilder()");
sw.indent();
for (Map.Entry entry :
constraint.getAttributes().entrySet()) {
// .put(key, value)
sw.print(".put(");
sw.print(asLiteral(entry.getKey()));
sw.print(", ");
sw.print(asLiteral(entry.getValue()));
sw.println(")");
}
// .build())
sw.println(".build())");
sw.outdent();
// .setConstraintValidatorClasses(classes )
sw.print(".setConstraintValidatorClasses(");
sw.print(asLiteral(asArray(constraint.getConstraintValidatorClasses(),
new Class[0])));
sw.println(")");
int ccCount = constraint.getComposingConstraints().size();
for (int i = 0; i < ccCount; i++) {
// .addComposingConstraint(cX_X)
sw.print(".addComposingConstraint(");
sw.print(constraintDescripotorVar + "_" + i);
sw.println(")");
}
// .getGroups(groups)
sw.print(".setGroups(");
Set> groups = constraint.getGroups();
sw.print(asLiteral(asArray(groups, new Class[0])));
sw.println(")");
// .setPayload(payload)
sw.print(".setPayload(");
Set> payload = constraint.getPayload();
sw.print(asLiteral(asArray(payload, new Class[0])));
sw.println(")");
// .setReportAsSingleViolation(boolean )
sw.print(".setReportAsSingleViolation(");
sw.print(Boolean.valueOf(constraint.isReportAsSingleViolation())
.toString());
sw.println(")");
// .build();
sw.println(".build();");
sw.outdent();
sw.outdent();
sw.outdent();
sw.outdent();
sw.println();
}
private void writeFields(SourceWriter sw) throws UnableToCompleteException {
// Create a static array of all valid property names.
BeanInfo beanInfo;
try {
beanInfo = Introspector.getBeanInfo(beanHelper.getClazz());
} catch (IntrospectionException e) {
throw error(logger, e);
}
// private static final java.util.List ALL_PROPERTY_NAMES =
sw.println("private static final java.util.List ALL_PROPERTY_NAMES = ");
sw.indent();
sw.indent();
// Collections.unmodifiableList(
sw.println("java.util.Collections.unmodifiableList(");
sw.indent();
sw.indent();
// java.util.Arrays.asList(
sw.print("java.util.Arrays.asList(");
// "foo","bar" );
sw.print(Joiner.on(",").join(
Iterables.transform(
ImmutableList.copyOf(beanInfo.getPropertyDescriptors()),
Functions.compose(TO_LITERAL, PROPERTY_DESCRIPTOR_TO_NAME))));
sw.println("));");
sw.outdent();
sw.outdent();
sw.outdent();
sw.outdent();
// Create a variable for each constraint of each property
for (PropertyDescriptor p :
beanHelper.getBeanDescriptor().getConstrainedProperties()) {
int count = 0;
for (ConstraintDescriptor constraint : p.getConstraintDescriptors()) {
writeConstraintDescriptor(sw, constraint,
constraintDescriptorVar(p.getPropertyName(), count++));
}
writePropertyDescriptor(sw, p);
if (p.isCascaded()) {
beansToValidate.add(isIterableOrMap(p.getElementClass())
? createBeanHelper(beanHelper.getAssociationType(p, true))
: createBeanHelper(p.getElementClass()));
}
}
// Create a variable for each constraint of this class.
int count = 0;
for (ConstraintDescriptor constraint :
beanHelper.getBeanDescriptor().getConstraintDescriptors()) {
writeConstraintDescriptor(sw, constraint,
constraintDescriptorVar("this", count++));
}
// Now write the BeanDescriptor after we already have the
// PropertyDescriptors and class constraints
writeBeanDescriptor(sw);
sw.println();
}
private void writeFieldWrapperMethod(SourceWriter sw, JField field) {
writeUnsafeNativeLongIfNeeded(sw, field.getType());
// private native fieldType _fieldName(Bean object) /*-{
sw.print("private native ");
sw.print(field.getType().getQualifiedSourceName());
sw.print(" ");
sw.print(toWrapperName(field));
sw.print("(");
sw.print(beanType.getName());
sw.println(" object) /*-{");
sw.indent();
// return [email protected]::myMethod();
sw.print("return object.@");
sw.print(field.getEnclosingType().getQualifiedSourceName());
sw.print("::" + field.getName());
sw.println(";");
// }-*/;
sw.outdent();
sw.println("}-*/;");
}
private void writeGetDescriptor(SourceWriter sw) {
// public GwtBeanDescriptor getConstraints() {
sw.print("public ");
sw.print("GwtBeanDescriptor<" + beanHelper.getTypeCanonicalName() + "> ");
sw.println("getConstraints() {");
sw.indent();
// return beanDescriptor;
sw.println("return beanDescriptor;");
sw.outdent();
sw.println("}");
}
private void writeGetterWrapperMethod(SourceWriter sw, JMethod method) {
writeUnsafeNativeLongIfNeeded(sw, method.getReturnType());
// private native fieldType _getter(Bean object) /*={
sw.print("private native ");
sw.print(method.getReturnType().getQualifiedSourceName());
sw.print(" ");
sw.print(toWrapperName(method));
sw.print("(");
sw.print(beanType.getName());
sw.println(" object) /*-{");
sw.indent();
// return [email protected]::myMethod()();
sw.print("return object.");
sw.print(method.getJsniSignature());
sw.println("();");
// }-*/;
sw.outdent();
sw.println("}-*/;");
}
private void writeIfPropertyNameNotFound(SourceWriter sw) {
// if (!ALL_PROPERTY_NAMES.contains(propertyName)) {
sw.println(" if (!ALL_PROPERTY_NAMES.contains(propertyName)) {");
sw.indent();
// throw new IllegalArgumentException(propertyName
// +"is not a valid property of myClass");
sw.print("throw new ");
sw.print(IllegalArgumentException.class.getCanonicalName());
sw.print("( propertyName +\" is not a valid property of ");
sw.print(beanType.getQualifiedSourceName());
sw.println("\");");
// }
sw.outdent();
sw.println("}");
}
private void writeNewAnnotation(SourceWriter sw,
ConstraintDescriptor constraint)
throws UnableToCompleteException {
Annotation annotation = constraint.getAnnotation();
Class annotationType = annotation.annotationType();
// new MyAnnotation () {
sw.print("new ");
sw.print(annotationType.getCanonicalName());
sw.println("(){");
sw.indent();
sw.indent();
// public Class annotationType() { return
// MyAnnotation.class; }
sw.print("public Class annotationType() { return ");
sw.print(annotationType.getCanonicalName());
sw.println(".class; }");
for (Method method : annotationType.getMethods()) {
// method.isAbstract would be better
if (method.getDeclaringClass().equals(annotation.annotationType())) {
// public returnType method() { return value ;}
sw.print("public ");
sw.print(method.getReturnType().getCanonicalName()); // TODO handle
// generics
sw.print(" ");
sw.print(method.getName());
sw.print("() { return ");
try {
Object value = method.invoke(annotation);
sw.print(asLiteral(value));
} catch (IllegalArgumentException e) {
throw error(logger, e);
} catch (IllegalAccessException e) {
throw error(logger, e);
} catch (InvocationTargetException e) {
throw error(logger, e);
}
sw.println(";}");
}
}
sw.outdent();
sw.outdent();
sw.println("}");
}
private void writeNewViolations(SourceWriter sw) {
writeNewViolations(sw, DEFAULT_VIOLATION_VAR);
}
private void writeNewViolations(SourceWriter sw, String violationName) {
// Set> violations =
sw.print("Set> ");
sw.print(violationName);
sw.println(" = ");
sw.indent();
sw.indent();
// new HashSet>();
sw.println("new HashSet>();");
sw.outdent();
sw.outdent();
}
/**
* @param sw
* @param p
*/
private void writePropertyDescriptor(SourceWriter sw, PropertyDescriptor p) {
// private final PropertyDescriptor myProperty_pd =
sw.print("private final ");
sw.print(PropertyDescriptor.class.getCanonicalName());
sw.print(" ");
sw.print(p.getPropertyName());
sw.println("_pd =");
sw.indent();
sw.indent();
// new PropertyDescriptorImpl(
sw.println("new " + PropertyDescriptorImpl.class.getCanonicalName() + "(");
sw.indent();
sw.indent();
// "myProperty",
sw.println("\"" + p.getPropertyName() + "\",");
// MyType.class,
sw.println(p.getElementClass().getCanonicalName() + ".class,");
// isCascaded,
sw.print(Boolean.toString(p.isCascaded()));
// myProperty_c0,
// myProperty_c1 );
int size = p.getConstraintDescriptors().size();
for (int i = 0; i < size; i++) {
sw.println(","); // Print the , for the previous line
sw.print(constraintDescriptorVar(p.getPropertyName(), i));
}
sw.println(");");
sw.outdent();
sw.outdent();
sw.outdent();
sw.outdent();
}
private void writePropertyValidators(SourceWriter sw)
throws UnableToCompleteException {
for (PropertyDescriptor p :
beanHelper.getBeanDescriptor().getConstrainedProperties()) {
if (beanHelper.hasField(p)) {
writeValidatePropertyMethod(sw, p, true);
sw.println();
}
if (beanHelper.hasGetter(p)) {
writeValidatePropertyMethod(sw, p, false);
sw.println();
}
}
}
private void writeValidate(SourceWriter sw) throws UnableToCompleteException {
// public Set> validate(
sw.println("public Set> validate(");
// GwtValidationContext context, BeanType object, Class... groups) {
sw.indent();
sw.indent();
sw.println("GwtValidationContext context,");
sw.println(beanHelper.getTypeCanonicalName() + " object,");
sw.println("Class... groups) {");
sw.outdent();
// try {
sw.println("try {");
sw.indent();
writeNewViolations(sw);
// context.addValidatedObject(object);
sw.println("context.addValidatedObject(object);");
// /// For each group
// TODO(nchalko) handle the sequence in the AbstractValidator
// See JSR 303 section 3.5
// all reachable fields
// all reachable getters (both) at once
// including all reachable and cascadable associations
Set properties = beanHelper.getBeanDescriptor().getConstrainedProperties();
for (PropertyDescriptor p : properties) {
writeValidatePropertyCall(sw, p, false);
}
// all class level constraints
int count = 0;
Class clazz = beanHelper.getClazz();
for (ConstraintDescriptor constraint : beanHelper.getBeanDescriptor().getConstraintDescriptors()) {
if (hasMatchingAnnotation(constraint)) {
if (!constraint.getConstraintValidatorClasses().isEmpty()) {
Class> validatorClass = getValidatorForType(
constraint, clazz);
// validate(context, violations, null, object,
sw.print("validate(context, violations, null, object, ");
// new MyValidtor();
sw.print("new ");
sw.print(validatorClass.getCanonicalName());
sw.print("(), "); // TODO(nchalko) use ConstraintValidatorFactory
// this.aConstraintDescriptor, groups);;
sw.print(constraintDescriptorVar("this", count));
sw.println(", groups);");
} else if (constraint.getComposingConstraints().isEmpty()) {
// TODO(nchalko) What does the spec say to do here.
logger.log(TreeLogger.WARN, "No ConstraintValidator of " + constraint
+ " for type " + clazz);
}
// TODO(nchalko) handle constraint.isReportAsSingleViolation() and
// hasComposingConstraints
}
count++;
}
// validate super classes and super interfaces
writeValidateInheritance(sw, clazz, Stage.OBJECT, null);
// return violations;
sw.println("return violations;");
writeCatchUnexpectedException(sw,
"\"Error validating " + beanHelper.getTypeCanonicalName() + "\"");
// }
sw.outdent();
sw.println("}");
}
private void writeValidateConstraint(SourceWriter sw, PropertyDescriptor p,
Class elementClass, ConstraintDescriptor constraint,
String constraintDescriptorVar) throws UnableToCompleteException {
writeValidateConstraint(sw, p, elementClass, constraint,
constraintDescriptorVar, DEFAULT_VIOLATION_VAR);
}
/**
* Writes the call to actually validate a constraint, including its composite
* constraints.
*
* If the constraint is annotated as
* {@link javax.validation.ReportAsSingleViolation ReportAsSingleViolation},
* then is called recursively and the {@code violationsVar} is changed to
* match the the {@code constraintDescriptorVar}.
*
* @param sw the Source Writer
* @param p the property
* @param elementClass The class of the Element
* @param constraint the constraint to validate.
* @param constraintDescriptorVar the name of the constraintDescriptor
* variable.
* @param violationsVar the name of the variable to hold violations
* @throws UnableToCompleteException
*/
private void writeValidateConstraint(SourceWriter sw, PropertyDescriptor p,
Class elementClass, ConstraintDescriptor constraint,
String constraintDescriptorVar, String violationsVar)
throws UnableToCompleteException {
boolean isComposite = !constraint.getComposingConstraints().isEmpty();
boolean firstReportAsSingleViolation =
constraint.isReportAsSingleViolation()
&& violationsVar.equals(DEFAULT_VIOLATION_VAR) && isComposite;
boolean reportAsSingleViolation = firstReportAsSingleViolation
|| !violationsVar.equals(DEFAULT_VIOLATION_VAR);
boolean hasValidator = !constraint.getConstraintValidatorClasses()
.isEmpty();
String compositeViolationsVar = constraintDescriptorVar + "_violations";
// Only do this the first time in a constraint composition.
if (firstReportAsSingleViolation) {
// Report myConstraint as Single Violation
sw.print("// Report ");
sw.print(constraint.getAnnotation().annotationType().getCanonicalName());
sw.println(" as Single Violation");
writeNewViolations(sw, compositeViolationsVar);
}
if (hasValidator) {
Class> validatorClass;
try {
validatorClass = getValidatorForType(constraint, elementClass);
} catch (UnexpectedTypeException e) {
throw error(logger, e);
}
if (firstReportAsSingleViolation) {
// if (!
sw.println("if (!");
sw.indent();
sw.indent();
}
// validate(myContext, violations object, value, new MyValidator(),
// constraintDescriptor, groups));
sw.print("validate(myContext, ");
sw.print(violationsVar);
sw.print(", object, value, ");
sw.print("new "); // TODO(nchalko) use ConstraintValidatorFactory
sw.print(validatorClass.getCanonicalName());
sw.print("(), ");
sw.print(constraintDescriptorVar);
sw.print(", groups)");
if (firstReportAsSingleViolation) {
// ) {
sw.println(") {");
sw.outdent();
} else if (!reportAsSingleViolation) {
// ;
sw.println(";");
} else if (isComposite) {
// ||
sw.println(" ||");
}
} else if (!isComposite) {
// TODO(nchalko) What does the spec say to do here.
logger.log(TreeLogger.WARN, "No ConstraintValidator of " + constraint + " for "
+ p.getPropertyName() + " of type " + elementClass);
}
if (firstReportAsSingleViolation) {
// if (
sw.print("if (");
sw.indent();
sw.indent();
}
int count = 0;
for (ConstraintDescriptor compositeConstraint : constraint
.getComposingConstraints()) {
String compositeVar = constraintDescriptorVar + "_" + count++;
writeValidateConstraint(sw, p, elementClass, compositeConstraint,
compositeVar, firstReportAsSingleViolation ? compositeViolationsVar
: violationsVar);
if (!reportAsSingleViolation) {
// ;
sw.println(";");
} else {
// ||
sw.println(" ||");
}
}
if (isComposite && reportAsSingleViolation) {
// false
sw.print("false");
}
if (firstReportAsSingleViolation) {
// ) {
sw.println(" ) {");
sw.outdent();
// addSingleViolation(myContext, violations, object, value,
// constraintDescriptor);
sw.print("addSingleViolation(myContext, violations, object, value, ");
sw.print(constraintDescriptorVar);
sw.println(");");
// }
sw.outdent();
sw.println("}");
if (hasValidator) {
// }
sw.outdent();
sw.println("}");
}
}
}
private void writeValidateFieldCall(SourceWriter sw, PropertyDescriptor p,
boolean useValue) {
String propertyName = p.getPropertyName();
// validateProperty_<>(context,
sw.print(validateMethodFieldName(p));
sw.print("(context, ");
sw.print("violations, ");
// null, (MyType) value,
// or
// object, object.getLastName(),
if (useValue) {
sw.print("null, ");
sw.print("(");
sw.print(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType(p,
true)));
sw.print(") value");
} else {
sw.print("object, ");
JField field = beanType.getField(propertyName);
if (field.isPublic()) {
sw.print("object.");
sw.print(propertyName);
} else {
fieldsToWrap.add(field);
sw.print(toWrapperName(field) + "(object)");
}
}
sw.print(", ");
// groups));
sw.println("groups);");
}
private void writeValidateGetterCall(SourceWriter sw, PropertyDescriptor p,
boolean useValue) {
// validateProperty_get<>(context, violations,
sw.print(validateMethodGetterName(p));
sw.print("(context, ");
sw.print("violations, ");
// object, object.getMyProp(),
// or
// null, (MyType) value,
if (useValue) {
sw.print("null, ");
sw.print("(");
sw.print(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType(p,
false)));
sw.print(") value");
} else {
sw.print("object, ");
JMethod method = beanType.findMethod(asGetter(p), NO_ARGS);
if (method.isPublic()) {
sw.print("object.");
sw.print(asGetter(p));
sw.print("()");
} else {
gettersToWrap.add(method);
sw.print(toWrapperName(method) + "(object)");
}
}
sw.print(", ");
// groups);
sw.println("groups);");
}
private void writeValidateInheritance(SourceWriter sw, Class clazz,
Stage stage, PropertyDescriptor property)
throws UnableToCompleteException {
writeValidateInterfaces(sw, clazz, stage, property);
Class superClass = clazz.getSuperclass();
if (superClass != null) {
writeValidatorCall(sw, superClass, stage, property);
}
}
private void writeValidateInterfaces(SourceWriter sw, Class clazz,
Stage stage, PropertyDescriptor p) throws UnableToCompleteException {
for (Class type : clazz.getInterfaces()) {
writeValidatorCall(sw, type, stage, p);
writeValidateInterfaces(sw, type, stage, p);
}
}
private void writeValidateIterable(SourceWriter sw, PropertyDescriptor p) {
// int i = 0;
sw.println("int i = 0;");
// for (Object instance : value) {
sw.println("for(Object instance : value) {");
sw.indent();
// if(instance != null && !context.alreadyValidated(instance)) {
sw.println(" if(instance != null && !context.alreadyValidated(instance)) {");
sw.indent();
// violations.addAll(
sw.println("violations.addAll(");
sw.indent();
sw.indent();
// context.getValidator().validate(
sw.println("context.getValidator().validate(");
sw.indent();
sw.indent();
Class elementClass = p.getElementClass();
if (elementClass.isArray() || List.class.isAssignableFrom(elementClass)) {
// context.appendIndex("myProperty",i++),
sw.print("context.appendIndex(\"");
sw.print(p.getPropertyName());
sw.println("\",i),");
} else {
// context.appendIterable("myProperty"),
sw.print("context.appendIterable(\"");
sw.print(p.getPropertyName());
sw.println("\"),");
}
// instance, groups));
sw.println("instance, groups));");
sw.outdent();
sw.outdent();
sw.outdent();
sw.outdent();
// }
sw.outdent();
sw.println("}");
// i++;
sw.println("i++;");
// }
sw.outdent();
sw.println("}");
}
private void writeValidateMap(SourceWriter sw, PropertyDescriptor p) {
// for (Entry entry : value.entrySet()) {
sw.print("for(");
sw.print(Entry.class.getCanonicalName());
sw.println(" entry : value.entrySet()) {");
sw.indent();
// if(entry.getValue() != null &&
// !context.alreadyValidated(entry.getValue())) {
sw.println(" if(entry.getValue() != null && !context.alreadyValidated(entry.getValue())) {");
sw.indent();
// violations.addAll(
sw.println("violations.addAll(");
sw.indent();
sw.indent();
// context.getValidator().validate(
sw.println("context.getValidator().validate(");
sw.indent();
sw.indent();
// context.appendKey("myProperty",entry.getKey()),
sw.print("context.appendKey(\"");
sw.print(p.getPropertyName());
sw.println("\",entry.getKey()),");
// entry.getValue(), groups));
sw.println("entry.getValue(), groups));");
sw.outdent();
sw.outdent();
sw.outdent();
sw.outdent();
// }
sw.outdent();
sw.println("}");
// }
sw.outdent();
sw.println("}");
}
private void writeValidateProperty(SourceWriter sw)
throws UnableToCompleteException {
// public Set> validate(
sw.println("public Set> validateProperty(");
// GwtValidationContext context, BeanType object, String propertyName,
// Class... groups) throws ValidationException {
sw.indent();
sw.indent();
sw.println("GwtValidationContext context,");
sw.println(beanHelper.getTypeCanonicalName() + " object,");
sw.println("String propertyName,");
sw.println("Class... groups) throws ValidationException {");
sw.outdent();
// try {
sw.println("try {");
sw.indent();
writeNewViolations(sw);
for (PropertyDescriptor property : beanHelper.getBeanDescriptor().getConstrainedProperties()) {
// if (propertyName.equals(myPropety)) {
sw.print("if (propertyName.equals(\"");
sw.print(property.getPropertyName());
sw.println("\")) {");
sw.indent();
writeValidatePropertyCall(sw, property, false);
// validate all super classes and interfaces
writeValidateInheritance(sw, beanHelper.getClazz(), Stage.PROPERTY,
property);
// }
sw.outdent();
sw.print("} else ");
}
writeIfPropertyNameNotFound(sw);
// return violations;
sw.println("return violations;");
writeCatchUnexpectedException(
sw,
"\"Error validating \" + propertyName + \" of "
+ beanHelper.getTypeCanonicalName() + "\"");
// }
sw.outdent();
sw.println("}");
}
private void writeValidatePropertyCall(SourceWriter sw,
PropertyDescriptor property, boolean useValue) {
if (useValue) {
// boolean valueTypeMatches = false;
sw.println("boolean valueTypeMatches = false;");
}
if (beanHelper.hasGetter(property)) {
if (useValue) {
// if ( value == null || value instanceof propertyType) {
sw.print("if ( value == null || value instanceof ");
sw.print(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType(
property, false)));
sw.println(") {");
sw.indent();
// valueTypeMatches = true;
sw.println("valueTypeMatches = true;");
}
// validate_getMyProperty
writeValidateGetterCall(sw, property, useValue);
if (useValue) {
// }
sw.outdent();
sw.println("}");
}
}
if (beanHelper.hasField(property)) {
if (useValue) {
// if ( value == null || value instanceof propertyType) {
sw.print("if ( value == null || value instanceof ");
sw.print(getQualifiedSourceNonPrimitiveType(beanHelper.getElementType(
property, true)));
sw.println(") {");
sw.indent();
// valueTypeMatches = true;
sw.println("valueTypeMatches = true;");
}
// validate_myProperty
writeValidateFieldCall(sw, property, useValue);
if (useValue) {
// } else
sw.outdent();
sw.println("}");
}
}
if (useValue & (beanHelper.hasGetter(property) || beanHelper.hasField(property))) {
// if(!valueTypeMatches) {
sw.println("if(!valueTypeMatches) {");
sw.indent();
// throw new ValidationException(value.getClass +
// " is not a valid type for " + propertyName);
sw.print("throw new ValidationException");
sw.println("(value.getClass() +\" is not a valid type for \"+ propertyName);");
// }
sw.outdent();
sw.println("}");
}
}
private void writeValidatePropertyMethod(SourceWriter sw,
PropertyDescriptor p, boolean useField) throws UnableToCompleteException {
Class elementClass = p.getElementClass();
JType elementType = beanHelper.getElementType(p, useField);
// private final void validateProperty_{get}(
sw.print("private final void ");
if (useField) {
sw.print(validateMethodFieldName(p));
} else {
sw.print(validateMethodGetterName(p));
}
sw.println("(");
sw.indent();
sw.indent();
// final GwtValidationContext context,
sw.println("final GwtValidationContext context,");
// final Set> violations,
sw.println("final Set> violations,");
// final BeanType object, value,
sw.println(beanHelper.getTypeCanonicalName() + " object,");
// Class... groups) {
sw.print("final ");
sw.print(elementType.getParameterizedQualifiedSourceName());
sw.println(" value,");
sw.println("Class... groups) {");
sw.outdent();
// context = context.append("myProperty");
sw.print("final GwtValidationContext myContext = context.append(\"");
sw.print(p.getPropertyName());
sw.println("\");");
// TODO(nchalko) move this out of here to the Validate method
if (p.isCascaded() && hasValid(p, useField)) {
// if(value != null) {
sw.println("if(value != null) {");
sw.indent();
if (isIterableOrMap(elementClass)) {
if (hasValid(p, useField)) {
JClassType associationType = beanHelper.getAssociationType(p,
useField);
createBeanHelper(associationType);
if (Map.class.isAssignableFrom(elementClass)) {
writeValidateMap(sw, p);
} else {
writeValidateIterable(sw, p);
}
}
} else {
createBeanHelper(elementClass);
// if (!context.alreadyValidated(value)) {
sw.println(" if (!context.alreadyValidated(value)) {");
sw.indent();
// violations.addAll(myContext.getValidator().validate(context, value,
// groups));
sw.print("violations.addAll(");
sw.println("myContext.getValidator().validate(myContext, value, groups));");
// }
sw.outdent();
sw.println("}");
}
// }
sw.outdent();
sw.println("}");
}
// It is possible for an annotation with the exact same values to be set on
// both the field and the getter.
// Keep track of the ones we have used to make sure we don't duplicate.
// It doesn't matter which one we use because they have exactly the same
// values.
Set