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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) [2018-2023] Payara Foundation and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://github.com/payara/Payara/blob/main/LICENSE.txt
* See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* The Payara Foundation designates this particular file as subject to the "Classpath"
* exception as provided by the Payara Foundation in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
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*/
package fish.payara.microprofile.openapi.impl.model.util;
import fish.payara.microprofile.openapi.impl.visitor.AnnotationInfo;
import fish.payara.microprofile.openapi.api.visitor.ApiContext;
import fish.payara.microprofile.openapi.impl.model.OperationImpl;
import fish.payara.microprofile.openapi.impl.visitor.OpenApiContext;
import java.lang.annotation.Annotation;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.Map.Entry;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.Consumer;
import static java.util.logging.Level.WARNING;
import java.util.logging.Logger;
import jakarta.inject.Inject;
import jakarta.ws.rs.BeanParam;
import jakarta.ws.rs.CookieParam;
import jakarta.ws.rs.DELETE;
import jakarta.ws.rs.FormParam;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.HEAD;
import jakarta.ws.rs.HeaderParam;
import jakarta.ws.rs.MatrixParam;
import jakarta.ws.rs.OPTIONS;
import jakarta.ws.rs.PATCH;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.PUT;
import jakarta.ws.rs.PathParam;
import jakarta.ws.rs.QueryParam;
import jakarta.ws.rs.core.Context;
import jakarta.ws.rs.ext.Provider;
import org.eclipse.microprofile.openapi.models.Constructible;
import org.eclipse.microprofile.openapi.models.OpenAPI;
import org.eclipse.microprofile.openapi.models.Operation;
import org.eclipse.microprofile.openapi.models.PathItem;
import org.eclipse.microprofile.openapi.models.PathItem.HttpMethod;
import org.eclipse.microprofile.openapi.models.media.Schema.SchemaType;
import org.eclipse.microprofile.openapi.models.parameters.Parameter.In;
import org.glassfish.hk2.classmodel.reflect.AnnotatedElement;
import org.glassfish.hk2.classmodel.reflect.AnnotationModel;
import org.glassfish.hk2.classmodel.reflect.ExtensibleType;
import org.glassfish.hk2.classmodel.reflect.FieldModel;
import org.glassfish.hk2.classmodel.reflect.MethodModel;
import org.glassfish.hk2.classmodel.reflect.ParameterizedType;
public final class ModelUtils {
private static final Logger LOGGER = Logger.getLogger(ModelUtils.class.getName());
/**
* The name of a variable in the model tree that is unrecognised.
*/
public static final String UNKNOWN_ELEMENT_NAME = "?";
/**
* Private constructor to hide public one.
*/
private ModelUtils() {
}
/**
* Normalises a path string. A normalised path has:
*
*
no multiple slashes.
*
no trailing slash.
*
*
* @param path the path to be normalised.
*/
public static String normaliseUrl(String path) {
if (path == null) {
return null;
}
// Add leading slash
path = "/" + path;
// Remove multiple slashes
path = path.replaceAll("/+", "/");
// Remove trailing slash
if (path.endsWith("/")) {
path = path.substring(0, path.length() - 1);
}
// Assure that there is one slash
if (path.isEmpty()) {
path = "/";
}
return path;
}
/**
* @param context
* @param method the method to analyse.
* @return the {@link HttpMethod} applied to this method, or null if there is
* none.
*/
public static HttpMethod getHttpMethod(OpenApiContext context, MethodModel method) {
AnnotationInfo annotations = context.getAnnotationInfo(method.getDeclaringType());
if (annotations.isAnnotationPresent(GET.class, method)) {
return HttpMethod.GET;
}
if (annotations.isAnnotationPresent(POST.class, method)) {
return HttpMethod.POST;
}
if (annotations.isAnnotationPresent(PUT.class, method)) {
return HttpMethod.PUT;
}
if (annotations.isAnnotationPresent(DELETE.class, method)) {
return HttpMethod.DELETE;
}
if (annotations.isAnnotationPresent(HEAD.class, method)) {
return HttpMethod.HEAD;
}
if (annotations.isAnnotationPresent(OPTIONS.class, method)) {
return HttpMethod.OPTIONS;
}
if (annotations.isAnnotationPresent(PATCH.class, method)) {
return HttpMethod.PATCH;
}
return null;
}
public static HttpMethod getHttpMethod(String method) {
if (method.equalsIgnoreCase("GET")) {
return HttpMethod.GET;
}
if (method.equalsIgnoreCase("POST")) {
return HttpMethod.POST;
}
if (method.equalsIgnoreCase("PUT")) {
return HttpMethod.PUT;
}
if (method.equalsIgnoreCase("DELETE")) {
return HttpMethod.DELETE;
}
if (method.equalsIgnoreCase("HEAD")) {
return HttpMethod.HEAD;
}
if (method.equalsIgnoreCase("OPTIONS")) {
return HttpMethod.OPTIONS;
}
if (method.equalsIgnoreCase("PATCH")) {
return HttpMethod.PATCH;
}
return null;
}
/**
* Creates a new {@link Operation}, and inserts it into the {@link PathItem}.
*
* @param pathItem the {@link PathItem} to add the {@link Operation} to.
* @param httpMethod the HTTP method of the operation to add.
* @return the newly created {@link Operation}, or the existing operation if
* available.
*/
public static Operation getOrCreateOperation(PathItem pathItem, HttpMethod httpMethod) {
Operation operation = new OperationImpl();
if (pathItem.getOperations().get(httpMethod) != null) {
return pathItem.getOperations().get(httpMethod);
}
switch (httpMethod) {
case GET:
pathItem.setGET(operation);
break;
case POST:
pathItem.setPOST(operation);
break;
case PUT:
pathItem.setPUT(operation);
break;
case DELETE:
pathItem.setDELETE(operation);
break;
case HEAD:
pathItem.setHEAD(operation);
break;
case OPTIONS:
pathItem.setOPTIONS(operation);
break;
case PATCH:
pathItem.setPATCH(operation);
break;
case TRACE:
pathItem.setTRACE(operation);
break;
default:
throw new IllegalArgumentException("HTTP method not recognised.");
}
return operation;
}
public static Operation findOperation(OpenApiContext context, OpenAPI api, MethodModel method, String path) {
Operation foundOperation = null;
try {
return api.getPaths().getPathItem(path).getOperations().get(getHttpMethod(context, method));
} catch (NullPointerException ex) {
// Operation not found
}
return foundOperation;
}
public static void removeOperation(PathItem pathItem, Operation operation) {
if (operation == null) {
return;
}
if (operation.equals(pathItem.getGET())) {
pathItem.setGET(null);
}
if (operation.equals(pathItem.getPOST())) {
pathItem.setPOST(null);
}
if (operation.equals(pathItem.getPUT())) {
pathItem.setPUT(null);
}
if (operation.equals(pathItem.getDELETE())) {
pathItem.setDELETE(null);
}
if (operation.equals(pathItem.getHEAD())) {
pathItem.setHEAD(null);
}
if (operation.equals(pathItem.getPATCH())) {
pathItem.setPATCH(null);
}
if (operation.equals(pathItem.getOPTIONS())) {
pathItem.setOPTIONS(null);
}
if (operation.equals(pathItem.getTRACE())) {
pathItem.setTRACE(null);
}
}
@SuppressWarnings("unchecked")
public static String getSchemaName(ApiContext context, AnnotatedElement type) {
assert type != null;
// context and annotation can be null
final Class[] ANNOTATION_TYPES = new Class[] {
org.eclipse.microprofile.openapi.annotations.media.Schema.class,
jakarta.xml.bind.annotation.XmlRootElement.class,
jakarta.xml.bind.annotation.XmlElement.class
};
for (Class annotationType : ANNOTATION_TYPES) {
AnnotationModel annotationModel;
// Fetch the element annotations
if (context != null && type instanceof ExtensibleType) {
// Fetch the annotation from the cache
ExtensibleType implementationType = (ExtensibleType) type;
AnnotationInfo annotationInfo = context.getAnnotationInfo(implementationType);
annotationModel = annotationInfo.getAnnotation(annotationType);
} else {
// Fetch the annotation manually
annotationModel = type.getAnnotation(annotationType.getName());
}
// Fields can be named by their accessors
if (annotationModel == null) {
if (type instanceof FieldModel) {
final FieldModel field = (FieldModel) type;
final String accessorName = getAccessorName(field.getName());
for (MethodModel method : field.getDeclaringType().getMethods()) {
// Check if it's the accessor
if (accessorName.equals(method.getName())) {
annotationModel = type.getAnnotation(annotationType.getName());
break;
}
}
}
}
// Get the schema name if the annotation exists
if (annotationModel != null) {
final String name = annotationModel.getValue("name", String.class);
if (name != null && !name.isEmpty() && !name.equals("##default")) {
return name;
}
}
}
return getSimpleName(type.getName());
}
public static String getAccessorName(String fieldName) {
char firstCharacter = Character.toUpperCase(fieldName.charAt(0));
return "get" + firstCharacter + fieldName.substring(1);
}
public static SchemaType getSchemaType(ParameterizedType type, ApiContext context) {
if(type.isArray()) {
return SchemaType.ARRAY;
} else {
return getSchemaType(type.getTypeName(), context);
}
}
/**
* Finds the {@link SchemaType} that corresponds to a given class.
*
* @param typeName the class to map.
* @return the schema type the class corresponds to.
*/
public static SchemaType getSchemaType(String typeName, ApiContext context) {
if (String.class.getName().equals(typeName)) {
return SchemaType.STRING;
}
if ("boolean".equals(typeName) || Boolean.class.getName().equals(typeName)) {
return SchemaType.BOOLEAN;
}
if ("int".equals(typeName) || Integer.class.getName().equals(typeName)) {
return SchemaType.INTEGER;
}
if ("short".equals(typeName)
|| "long".equals(typeName)
|| "float".equals(typeName)
|| "double".equals(typeName)
|| Short.class.getName().equals(typeName)
|| Long.class.getName().equals(typeName)
|| Float.class.getName().equals(typeName)
|| Double.class.getName().equals(typeName)) {
return SchemaType.NUMBER;
}
if (typeName != null && typeName.endsWith("[]")) {
return SchemaType.ARRAY;
}
Class clazz = null;
try {
clazz = context.getApplicationClassLoader().loadClass(typeName);
} catch (Throwable app) {
try {
clazz = Class.forName(typeName);
} catch (Throwable t) {
}
}
if (clazz != null && (clazz.isArray() || Iterable.class.isAssignableFrom(clazz))) {
return SchemaType.ARRAY;
}
return SchemaType.OBJECT;
}
public static boolean isMap(String typeName, ApiContext context) {
Class clazz = null;
try {
clazz = context.getApplicationClassLoader().loadClass(typeName);
} catch (Throwable app) {
try {
clazz = Class.forName(typeName);
} catch (Throwable t) {
}
}
return Map.class.isAssignableFrom(clazz);
}
/**
* Finds a {@link SchemaType} that can represent both of the given types. If one
* of the input values are null, this function returns the other. If both are
* null, this function returns null.
*
* @param type1 the first schema type.
* @param type2 the second schema type.
* @return a {@link SchemaType} that can represent both.
*/
public static SchemaType getParentSchemaType(SchemaType type1, SchemaType type2) {
if (type1 == null && type2 == null) {
return null;
}
if (type1 == null) {
return type2;
}
if (type2 == null) {
return type1;
}
if (type1 == SchemaType.OBJECT || type2 == SchemaType.OBJECT) {
return SchemaType.OBJECT;
}
if (type1 == SchemaType.STRING || type2 == SchemaType.STRING) {
return SchemaType.STRING;
}
if (type1 != type2) {
return SchemaType.STRING;
}
return type1;
}
public static boolean isRequestBody(ApiContext context, org.glassfish.hk2.classmodel.reflect.Parameter parameter) {
AnnotationInfo annotations = context.getAnnotationInfo(parameter.getMethod().getDeclaringType());
if (annotations.getAnnotationCount(parameter) == 0) {
return true;
}
return !annotations.isAnyAnnotationPresent(
parameter, FormParam.class, QueryParam.class, MatrixParam.class,
BeanParam.class, HeaderParam.class, PathParam.class,
CookieParam.class, Context.class, Inject.class, Provider.class
);
}
public static In getParameterType(ApiContext context, org.glassfish.hk2.classmodel.reflect.Parameter parameter) {
AnnotationInfo annotations = context.getAnnotationInfo(parameter.getMethod().getDeclaringType());
if (annotations.isAnnotationPresent(PathParam.class, parameter)) {
return In.PATH;
}
if (annotations.isAnnotationPresent(QueryParam.class, parameter)) {
return In.QUERY;
}
if (annotations.isAnnotationPresent(HeaderParam.class, parameter)) {
return In.HEADER;
}
if (annotations.isAnnotationPresent(CookieParam.class, parameter)) {
return In.COOKIE;
}
return null;
}
public static String getParameterName(ApiContext context, org.glassfish.hk2.classmodel.reflect.Parameter parameter) {
AnnotationInfo annotations = context.getAnnotationInfo(parameter.getMethod().getDeclaringType());
if (annotations.isAnnotationPresent(PathParam.class, parameter)) {
return annotations.getAnnotationValue(PathParam.class, parameter);
} else if (annotations.isAnnotationPresent(QueryParam.class, parameter)) {
return annotations.getAnnotationValue(QueryParam.class, parameter);
} else if (annotations.isAnnotationPresent(HeaderParam.class, parameter)) {
return annotations.getAnnotationValue(HeaderParam.class, parameter);
} else if (annotations.isAnnotationPresent(CookieParam.class, parameter)) {
return annotations.getAnnotationValue(CookieParam.class, parameter);
}
return null;
}
public static boolean isVoid(ParameterizedType type) {
if (type == null) {
return true;
}
final String typeName = type.getTypeName();
if (typeName == null) {
return true;
}
if ("void".equals(typeName)) {
return true;
}
if ("java.lang.Void".equals(typeName)) {
return true;
}
return false;
}
public static boolean isAnnotationNull(Annotation annotation) {
if (annotation == null) {
return true;
}
for (Method m : annotation.annotationType().getDeclaredMethods()) {
if (m.getParameterCount() == 0) {
try {
Object value = m.invoke(annotation);
// NB. annotation attribute values cannot be null
if (value.getClass().isArray() && Array.getLength(value) > 0) {
return false;
} else if (value instanceof Boolean && ((Boolean) value).booleanValue()) {
return false;
} else if (value instanceof Class && value != Void.class) {
return false;
} else if (value instanceof Enum && !((Enum) value).name().equalsIgnoreCase("DEFAULT")) {
return false;
} else if (value instanceof String && !value.toString().isEmpty()) {
return false;
} else if (value instanceof Annotation && !isAnnotationNull((Annotation) value)) {
return false;
}
// else it must be another primitive wrapper but we have no rules on them
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
LOGGER.log(WARNING, "Unable to access annotation element.", ex);
}
}
}
return true;
}
public static void extractAnnotations(
AnnotationModel annotationModel,
ApiContext context,
String parameterName,
String key,
BiFunction factory,
BiConsumer wrapperAddFunction) {
if (wrapperAddFunction == null) {
throw new IllegalArgumentException("null wrapperAddFunction. This is required to modify OpenAPI documents");
}
List annotations = annotationModel.getValue(parameterName, List.class);
if (annotations != null) {
for (AnnotationModel annotation : annotations) {
wrapperAddFunction.accept(
annotation.getValue(key, String.class),
factory.apply(annotation, context)
);
}
}
}
public static void extractAnnotations(
AnnotationModel annotationModel,
ApiContext context,
String type,
BiFunction factory,
Consumer wrapperAddFunction) {
if (wrapperAddFunction == null) {
throw new IllegalArgumentException("null wrapperAddFunction. This is required to modify OpenAPI documents");
}
List annotations = annotationModel.getValue(type, List.class);
if (annotations != null) {
for (AnnotationModel annotation : annotations) {
wrapperAddFunction.accept(
factory.apply(annotation, context)
);
}
}
}
public static void mergeImmutableList(List from, List to, Consumer> setFunction) {
final List list = new ArrayList<>();
if (from != null) {
list.addAll(from);
}
if (to != null) {
list.addAll(to);
}
setFunction.accept(list);
}
public static Boolean mergeProperty(Boolean current, boolean offer, boolean override) {
return mergeProperty(current, Boolean.valueOf(offer), override);
}
public static Boolean mergeProperty(boolean current, Boolean offer, boolean override) {
return mergeProperty(Boolean.valueOf(current), offer, override);
}
public static Boolean mergeProperty(boolean current, boolean offer, boolean override) {
return mergeProperty(Boolean.valueOf(current), Boolean.valueOf(offer), override);
}
public static E mergeProperty(E current, E offer, boolean override) {
// Treat empty strings as null
if (offer instanceof String && offer.toString().isEmpty()) {
offer = null;
}
// Treat max or min integers as null
if (offer instanceof Integer && (offer.equals(Integer.MAX_VALUE) || offer.equals(Integer.MIN_VALUE))) {
offer = null;
}
E resolve = current;
if (offer != null) {
if (override) {
resolve = offer;
} else {
if (current == null) {
resolve = offer;
}
}
}
return resolve;
}
/**
* Set the reference property of an object, and clear every other field.
*/
public static void applyReference(org.eclipse.microprofile.openapi.models.Reference referee, String reference) {
// Set the reference
referee.setRef(reference);
// For every field except the reference
for (Field field : referee.getClass().getDeclaredFields()) {
// Make the field accessible
Object objectToTestAccessibility = Modifier.isStatic(field.getModifiers()) ? null : referee;
boolean accessible = field.canAccess(objectToTestAccessibility);
field.setAccessible(true);
try {
Object currentValue = field.get(referee);
// If the field is not equal to the reference
if (currentValue != null && !field.getName().equals("ref")) {
// If the field is a collection, clear it
if (Collection.class.isAssignableFrom(field.getType())) {
((Collection) field.get(referee)).clear();
continue;
}
// If the field is an array, clear it
if (field.getType().isArray()) {
field.set(referee, field.getType().getClass().cast(new Object[0]));
continue;
}
// Otherwise, set it to null
field.set(referee, null);
}
} catch (Exception ex) {
continue;
} finally {
field.setAccessible(accessible);
}
}
}
public static void overwrite(T from, T to) {
if (to != null && from != null) {
for (Field f : to.getClass().getDeclaredFields()) {
f.setAccessible(true);
try {
f.set(to, f.get(from));
} catch (IllegalArgumentException | IllegalAccessException e) {
// Ignore errors
}
}
}
}
@SuppressWarnings("unchecked")
public static void merge(T from, T to, boolean override) {
if (from != null && to != null) {
for (Field f : to.getClass().getDeclaredFields()) {
// Skip static or synthetic fields
if (f.isSynthetic() || Modifier.isStatic(f.getModifiers())) {
continue;
}
f.setAccessible(true);
try {
// Get the new and old value
Object fromValue = f.get(from);
Object toValue = f.get(to);
// If there is no 'from', ignore
if (fromValue == null) {
continue;
}
if (fromValue instanceof Map && toValue != null) {
Map fromMap = (Map) fromValue;
Map toMap = (Map) toValue;
for (Entry entry : fromMap.entrySet()) {
if (!toMap.containsKey(entry.getKey())) {
toMap.put(entry.getKey(), entry.getValue());
} else {
merge(entry.getValue(), toMap.get(entry.getKey()), override);
}
}
} else if (fromValue instanceof Collection && toValue != null) {
Collection
