All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.glassfish.jersey.server.model.Resource Maven / Gradle / Ivy

Go to download

Ehcache is an open source, standards-based cache used to boost performance, offload the database and simplify scalability. Ehcache is robust, proven and full-featured and this has made it the most widely-used Java-based cache.

There is a newer version: 2.10.9.2
Show newest version
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2014 Oracle 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
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/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 packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle 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
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package org.glassfish.jersey.server.model;

import java.lang.reflect.Modifier;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

import javax.ws.rs.Path;

import org.glassfish.jersey.Severity;
import org.glassfish.jersey.internal.Errors;
import org.glassfish.jersey.internal.util.collection.Value;
import org.glassfish.jersey.internal.util.collection.Values;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.model.internal.ModelHelper;
import org.glassfish.jersey.uri.PathPattern;

import jersey.repackaged.com.google.common.base.Function;
import jersey.repackaged.com.google.common.base.Preconditions;
import jersey.repackaged.com.google.common.collect.Lists;
import jersey.repackaged.com.google.common.collect.Sets;

/**
 * Model of a single resource component.
 * 

* Resource component model represents a collection of {@link ResourceMethod methods} * grouped under the same parent request path template. {@code Resource} class is also * the main entry point to the programmatic resource modeling API that provides ability * to programmatically extend the existing JAX-RS annotated resource classes or build * new resource models that may be utilized by Jersey runtime. *

*

* For example: *

 * @Path("hello")
 * public class HelloResource {
 *      @GET
 *      @Produces("text/plain")
 *      public String sayHello() {
 *          return "Hello!";
 *      }
 * }
 *
 * ...
 *
 * // Register the annotated resource.
 * ResourceConfig resourceConfig = new ResourceConfig(HelloResource.class);
 *
 * // Add new "hello2" resource using the annotated resource class
 * // and overriding the resource path.
 * Resource.Builder resourceBuilder =
 *         Resource.builder(HelloResource.class, new LinkedList<ResourceModelIssue>())
 *         .path("hello2");
 *
 * // Add a new (virtual) sub-resource method to the "hello2" resource.
 * resourceBuilder.addChildResource("world").addMethod("GET")
 *         .produces("text/plain")
 *         .handledBy(new Inflector<Request, String>() {
 *                 @Override
 *                 public String apply(Request request) {
 *                     return "Hello World!";
 *                 }
 *         });
 *
 * // Register the new programmatic resource in the application's configuration.
 * resourceConfig.registerResources(resourceBuilder.build());
 * 
* The following table illustrates the supported requests and provided responses * for the application configured in the example above. * * * * * * * * * * * * * *
RequestResponseMethod invoked
{@code "GET /hello"}{@code "Hello!"}{@code HelloResource.sayHello()}
{@code "GET /hello2"}{@code "Hello!"}{@code HelloResource.sayHello()}
{@code "GET /hello2/world"}{@code "Hello World!"}{@code Inflector.apply()}
*

* * @author Marek Potociar (marek.potociar at oracle.com) * @author Miroslav Fuksa (miroslav.fuksa at oracle.com) */ public final class Resource implements Routed, ResourceModelComponent { /** * Immutable resource data holder. */ private static class Data { private final List names; private final String path; private final PathPattern pathPattern; private final List resourceMethods; private final ResourceMethod.Data locator; private final List childResources; private final Set> handlerClasses; private final Set handlerInstances; private final boolean extended; /** * Create a new immutable resource data holder from the supplied parameters. * * @param names resource names. * @param path resource path. * @param resourceMethods child resource methods. * @param locator child resource locator. * @param childResources child sub-resources. * @param handlerClasses handler classes handling the resource methods. * @param handlerInstances handler instances handling the resource methods. * @param extended */ private Data( final List names, final String path, final List resourceMethods, final ResourceMethod.Data locator, final List childResources, final Set> handlerClasses, final Set handlerInstances, boolean extended) { this.extended = extended; this.names = immutableCopy(names); this.path = path; this.pathPattern = (path == null || path.isEmpty()) ? PathPattern.OPEN_ROOT_PATH_PATTERN : new PathPattern(path, PathPattern.RightHandPath.capturingZeroOrMoreSegments); this.resourceMethods = Resource.immutableCopy(resourceMethods); this.locator = locator; this.childResources = Collections.unmodifiableList(childResources); // no need to deep-copy the list this.handlerClasses = Resource.immutableCopy(handlerClasses); this.handlerInstances = Resource.immutableCopy(handlerInstances); } @Override public String toString() { return "Resource{" + ((path == null) ? "[unbound], " : "\"" + path + "\", ") + childResources.size() + " child resources, " + resourceMethods.size() + " resource methods, " + (locator == null ? "0" : "1") + " sub-resource locator, " + handlerClasses.size() + " method handler classes, " + handlerInstances.size() + " method handler instances" + '}'; } } /** * Resource model component builder. */ public static final class Builder { private List names; private String path; private final Set methodBuilders; private final Set childResourceBuilders; private final List childResources; private final List resourceMethods; private ResourceMethod.Data resourceLocator; private final Set> handlerClasses; private final Set handlerInstances; private final Resource.Builder parentResource; private boolean extended; private Builder(final Resource.Builder parentResource) { this.methodBuilders = Sets.newIdentityHashSet(); this.childResourceBuilders = Sets.newIdentityHashSet(); this.childResources = Lists.newLinkedList(); this.resourceMethods = Lists.newLinkedList(); this.handlerClasses = Sets.newIdentityHashSet(); this.handlerInstances = Sets.newIdentityHashSet(); this.parentResource = parentResource; name("[unnamed]"); } private Builder(final String path) { this((Resource.Builder) null); path(path); } private Builder(final String path, final Resource.Builder parentResource) { this(parentResource); this.path = path; } private Builder() { this((Resource.Builder) null); } private boolean isEmpty() { return this.path == null && methodBuilders.isEmpty() && childResourceBuilders.isEmpty() && resourceMethods.isEmpty() && childResources.isEmpty() && resourceLocator == null; } /** * Define a new name of the built resource. *

* The resource model name is typically used for reporting * purposes (e.g. validation etc.). * * @param name new name of the resource. * @return updated builder object. * @see org.glassfish.jersey.server.model.Resource#getName() */ public Builder name(final String name) { this.names = Lists.newArrayList(name); return this; } /** * Define a new path for the built resource. *

* NOTE: Invoking this method marks a resource as a root resource. * * @param path new path for the resource. * @return updated builder object. */ public Builder path(final String path) { this.path = path; return this; } /** * Add a new method model to the resource for processing requests of * the specified HTTP method. *

* The returned builder is automatically bound to the the resource. It is * not necessary to invoke the {@link ResourceMethod.Builder#build() build()} * method on the method builder after setting all the data. This will be * done automatically when the resource is built. * * @param httpMethod HTTP method that will be processed by the method. * @return a new resource method builder. */ public ResourceMethod.Builder addMethod(final String httpMethod) { ResourceMethod.Builder builder = new ResourceMethod.Builder(this); methodBuilders.add(builder); return builder.httpMethod(httpMethod); } /** * Add a new arbitrary method model to the resource. *

* The returned builder is automatically bound to the the resource. It is * not necessary to invoke the {@link ResourceMethod.Builder#build() build()} * method on the method builder after setting all the data. This will be * done automatically when the resource is built. * * @return a new resource method builder. */ public ResourceMethod.Builder addMethod() { ResourceMethod.Builder builder = new ResourceMethod.Builder(this); methodBuilders.add(builder); return builder; } /** * Add a new method model that is a copy of the given {@code resourceMethod}. *

* The returned builder is automatically bound to the the resource. It is * not necessary to invoke the {@link ResourceMethod.Builder#build() build()} * method on the method builder after setting all the data. This will be * done automatically when the resource is built. * * @param resourceMethod The resource method based on which the new method builder * should be created. * * @return a new resource method builder. */ public ResourceMethod.Builder addMethod(ResourceMethod resourceMethod) { ResourceMethod.Builder builder = new ResourceMethod.Builder(this, resourceMethod); methodBuilders.add(builder); return builder; } /** * Add a new child resource to the resource. *

* The returned builder is automatically bound to the the resource. It is * not necessary to invoke the {@link Resource.Builder#build() build()} * method on the resource builder after setting all the data. This will be * done automatically when the resource is built. * * @param relativePath The path of the new child resource relative to this resource. * @return child resource builder. */ public Builder addChildResource(String relativePath) { if (this.parentResource != null) { throw new IllegalStateException(LocalizationMessages.RESOURCE_ADD_CHILD_ALREADY_CHILD()); } final Builder resourceBuilder = new Builder(relativePath, this); childResourceBuilders.add(resourceBuilder); return resourceBuilder; } /** * Add an existing Resource as a child resource of current resource. * * @param resource Resource to be added as child resource. */ public void addChildResource(Resource resource) { this.childResources.add(resource.data); } /** * Merge methods from a given resource model into this resource model builder. * * @param resource to be merged into this resource model builder. * @return updated builder object. */ public Builder mergeWith(final Resource resource) { mergeWith(resource.data); return this; } /** * Set the flag indicating whether the resource is extended or is a core of exposed RESTful API. * The method defines the * flag available at {@link org.glassfish.jersey.server.model.Resource#isExtended()}. *

* Extended resource model components are helper components that are not considered as a core of a * RESTful API. These can be for example {@code OPTIONS} {@link ResourceMethod resource methods} * added by {@link org.glassfish.jersey.server.model.ModelProcessor model processors} * or {@code application.wadl} resource producing the WADL. Both resource are rather supportive * than the core of RESTful API. *

*

* If not set the resource will not be defined as extended by default. *

* * @param extended If {@code true} then resource is marked as extended. * @return updated builder object. * @see org.glassfish.jersey.server.model.ExtendedResource * * @since 2.5.1 */ public Builder extended(boolean extended) { this.extended = extended; return this; } /** * Get the flag indicating whether the resource method is extended or is a core of exposed RESTful API. * * @return {@code true} if the method is extended. */ /* package */ boolean isExtended() { return extended; } private Builder mergeWith(final Resource.Data resourceData) { this.resourceMethods.addAll(resourceData.resourceMethods); this.childResources.addAll(resourceData.childResources); if (resourceLocator != null && resourceData.locator != null) { Errors.processWithException(new Runnable() { @Override public void run() { Errors.error( this, LocalizationMessages.RESOURCE_MERGE_CONFLICT_LOCATORS(Builder.this, resourceData, path), Severity.FATAL); } }); } else if (resourceData.locator != null) { this.resourceLocator = resourceData.locator; } this.handlerClasses.addAll(resourceData.handlerClasses); this.handlerInstances.addAll(resourceData.handlerInstances); this.names.addAll(resourceData.names); return this; } /** * Merge methods from a given resource model builder into this resource model * builder. *

* NOTE: Any "open" method builders in the supplied {@code resourceBuilder} that have * not been {@link org.glassfish.jersey.server.model.ResourceMethod.Builder#build() * explicitly converted to method models} will be closed as part of this merge operation * before merging the resource builder instances. *

* * @param resourceBuilder to be merged into this resource model builder. * @return updated builder object. */ public Builder mergeWith(final Builder resourceBuilder) { resourceBuilder.processMethodBuilders(); this.resourceMethods.addAll(resourceBuilder.resourceMethods); this.childResources.addAll(resourceBuilder.childResources); if (Resource.Builder.this.resourceLocator != null && resourceBuilder.resourceLocator != null) { Errors.processWithException(new Runnable() { @Override public void run() { Errors.warning(this, LocalizationMessages.RESOURCE_MERGE_CONFLICT_LOCATORS(Resource.Builder.this, resourceBuilder, path)); } }); } else if (resourceBuilder.resourceLocator != null) { this.resourceLocator = resourceBuilder.resourceLocator; } this.handlerClasses.addAll(resourceBuilder.handlerClasses); this.handlerInstances.addAll(resourceBuilder.handlerInstances); this.names.addAll(resourceBuilder.names); return this; } /** * Called when a new resource, sub-resource and sub-resource locator method * was built and should be registered with the resource builder. *

* This is a friend call-back API exposed for a use by a {@link ResourceMethod.Builder * ResourceMethod.Builder}. *

* * @param builder builder instance that built the method. * @param methodData new resource, sub-resource or sub-resource locator */ void onBuildMethod(ResourceMethod.Builder builder, ResourceMethod.Data methodData) { Preconditions.checkState(methodBuilders.remove(builder), "Resource.Builder.onBuildMethod() invoked from a resource method builder " + "that is not registered in the resource builder instance."); switch (methodData.getType()) { case RESOURCE_METHOD: resourceMethods.add(methodData); break; case SUB_RESOURCE_LOCATOR: if (resourceLocator != null) { Errors.processWithException(new Runnable() { @Override public void run() { Errors.error( this, LocalizationMessages.AMBIGUOUS_SRLS(this, path), Severity.FATAL); } }); } resourceLocator = methodData; break; } final MethodHandler methodHandler = methodData.getInvocable().getHandler(); if (methodHandler.isClassBased()) { handlerClasses.add(methodHandler.getHandlerClass()); } else { handlerInstances.add(methodHandler.getHandlerInstance()); } } private void onBuildChildResource(Builder childResourceBuilder, Resource.Data childResourceData) { Preconditions.checkState(childResourceBuilders.remove(childResourceBuilder), "Resource.Builder.onBuildChildResource() invoked from a resource builder " + "that is not registered in the resource builder instance as a child resource builder."); childResources.add(childResourceData); } private List mergeResources(List resources) { List mergedResources = Lists.newArrayList(); for (int i = 0; i < resources.size(); i++) { Resource.Data outer = resources.get(i); Resource.Builder builder = null; for (int j = i + 1; j < resources.size(); j++) { Resource.Data inner = resources.get(j); if (outer.path.equals(inner.path)) { if (builder == null) { builder = Resource.builder(outer); } builder.mergeWith(inner); resources.remove(j); j--; } } if (builder == null) { mergedResources.add(outer); } else { mergedResources.add(builder.buildResourceData()); } } return mergedResources; } private Data buildResourceData() { if (parentResource != null && parentResource.isExtended()) { this.extended = true; } processMethodBuilders(); processChildResourceBuilders(); final List mergedChildResources = mergeResources(childResources); Set> classes = Sets.newHashSet(handlerClasses); Set instances = Sets.newHashSet(handlerInstances); for (Data childResource : mergedChildResources) { classes.addAll(childResource.handlerClasses); instances.addAll(childResource.handlerInstances); } if (areAllMembersExtended(mergedChildResources)) { extended = true; } final Data resourceData = new Data( names, path, resourceMethods, resourceLocator, mergedChildResources, classes, instances, extended); if (parentResource != null) { parentResource.onBuildChildResource(this, resourceData); } return resourceData; } private boolean areAllMembersExtended(List mergedChildResources) { boolean allExtended = true; for (ResourceMethod.Data resourceMethod : resourceMethods) { if (!resourceMethod.isExtended()) { allExtended = false; } } if (resourceLocator != null && !resourceLocator.isExtended()) { allExtended = false; } for (Data childResource : mergedChildResources) { if (!childResource.extended) { allExtended = false; } } return allExtended; } /** * Build a new resource model. * * @return new (immutable) resource model. */ public Resource build() { final Data resourceData = buildResourceData(); return new Resource(null, resourceData); } private void processMethodBuilders() { // We have to iterate the set this way to prevent ConcurrentModificationExceptions // caused by the nested invocation of Set.remove(...) in Resource.Builder.onBuildMethod(...). while (!methodBuilders.isEmpty()) { methodBuilders.iterator().next().build(); } } private void processChildResourceBuilders() { // We have to iterate the set this way to prevent ConcurrentModificationExceptions // caused by the nested invocation of Set.remove(...) in Resource.Builder.onBuildChildResource(...). while (!childResourceBuilders.isEmpty()) { childResourceBuilders.iterator().next().build(); } } } /** * Get a new unbound resource model builder. * * @return new unbound resource model builder. * @see Resource.Builder#path(java.lang.String) */ public static Builder builder() { return new Builder(); } /** * Get a new resource model builder for a resource bound to a given path. * * @param path resource path. * @return new resource model builder. * @see Resource.Builder#path(java.lang.String) */ public static Builder builder(final String path) { return new Builder(path); } /** * Creates a {@link Builder resource builder} instance from the list of {@code resource} which can be merged * into a single resource. It must be possible to merge the {@code resources} into a single valid resource. * For example all resources must have the same {@link Resource#getPath() path}, they cannot have ambiguous methods * on the same path, etc. * * @param resources Resources with the same path. * @return Resource builder initialized from merged resources. */ public static Builder builder(List resources) { if (resources == null || resources.isEmpty()) { return builder(); } final Iterator it = resources.iterator(); Resource.Data resourceData = it.next().data; Builder builder = Resource.builder(resourceData); String path = resourceData.path; while (it.hasNext()) { resourceData = it.next().data; if ((resourceData.path == null && path == null) || (path != null && path.equals(resourceData.path))) { builder.mergeWith(resourceData); } else { throw new IllegalArgumentException(LocalizationMessages.ERROR_RESOURCES_CANNOT_MERGE()); } } return builder; } /** * Create a resource model builder initialized by introspecting an annotated * JAX-RS resource class. * * @param resourceClass resource class to be modelled. * @return resource model builder initialized by the class or {@code null} if the * class does not represent a resource. */ public static Builder builder(Class resourceClass) { return builder(resourceClass, false); } /** * Create a resource model builder initialized by introspecting an annotated * JAX-RS resource class. * * @param resourceClass resource class to be modelled. * @param disableValidation if set to {@code true}, then any model validation checks will be disabled. * @return resource model builder initialized by the class or {@code null} if the * class does not represent a resource. */ public static Builder builder(Class resourceClass, boolean disableValidation) { final Builder builder = new IntrospectionModeller(resourceClass, disableValidation).createResourceBuilder(); return builder.isEmpty() ? null : builder; } /** * Create a resource model initialized by introspecting an annotated * JAX-RS resource class. * * @param resourceClass resource class to be modelled. * @return resource model initialized by the class or {@code null} if the * class does not represent a resource. */ public static Resource from(Class resourceClass) { return from(resourceClass, false); } /** * Create a resource model initialized by introspecting an annotated * JAX-RS resource class. * * @param resourceClass resource class to be modelled. * @param disableValidation if set to {@code true}, then any model validation checks will be disabled. * @return resource model initialized by the class or {@code null} if the * class does not represent a resource. */ public static Resource from(Class resourceClass, boolean disableValidation) { final Builder builder = new IntrospectionModeller(resourceClass, disableValidation).createResourceBuilder(); return builder.isEmpty() ? null : builder.build(); } /** * Check if the class is acceptable as a JAX-RS provider or resource. *

* Method returns {@code false} if the class is either *

    *
  • abstract
  • *
  • interface
  • *
  • annotation
  • *
  • primitive
  • *
  • local class
  • *
  • non-static member class
  • *
* * @param c class to be checked. * @return {@code true} if the class is an acceptable JAX-RS provider or * resource, {@code false} otherwise. */ public static boolean isAcceptable(Class c) { return !((c.getModifiers() & Modifier.ABSTRACT) != 0 || c.isPrimitive() || c.isAnnotation() || c.isInterface() || c.isLocalClass() || (c.isMemberClass() && (c.getModifiers() & Modifier.STATIC) == 0)); } /** * Get the resource class {@link Path @Path} annotation. *

* May return {@code null} in case there is no {@code @Path} annotation on the resource. * * @param resourceClass resource class. * @return {@code @Path} annotation instance if present on the resource class (i.e. * the class is a root resource class), or {@code null} otherwise. */ public static Path getPath(Class resourceClass) { return ModelHelper.getAnnotatedResourceClass(resourceClass).getAnnotation(Path.class); } /** * Get a new resource model builder initialized from a given resource model. * * @param resource resource model initializing the resource builder. * @return new resource model builder. */ public static Builder builder(Resource resource) { return builder(resource.data); } private static Builder builder(Resource.Data resourceData) { final Builder b; if (resourceData.path == null) { b = new Builder(); } else { b = new Builder(resourceData.path); } b.resourceMethods.addAll(resourceData.resourceMethods); b.childResources.addAll(resourceData.childResources); b.resourceLocator = resourceData.locator; b.handlerClasses.addAll(resourceData.handlerClasses); b.handlerInstances.addAll(resourceData.handlerInstances); b.names.addAll(resourceData.names); return b; } private static List transform(final Resource parent, final List list) { return Lists.transform(list, new Function() { @Override public Resource apply(Data data) { return new Resource(parent, data); } }); } private static List immutableCopy(List list) { return list.isEmpty() ? Collections.emptyList() : Collections.unmodifiableList(Lists.newArrayList(list)); } private static Set immutableCopy(Set set) { if (set.isEmpty()) { return Collections.emptySet(); } final Set result = Sets.newIdentityHashSet(); result.addAll(set); return set; } private final Resource parent; private final Data data; private final Value name; private final List resourceMethods; private final ResourceMethod locator; private final List childResources; private Resource(final Resource parent, final Data data) { this.parent = parent; this.data = data; this.name = Values.lazy(new Value() { @Override public String get() { if (data.names.size() == 1) { return data.names.get(0); } else { // return merged name StringBuilder nameBuilder = new StringBuilder("Merge of "); nameBuilder.append(data.names.toString()); return nameBuilder.toString(); } } }); this.resourceMethods = immutableCopy(ResourceMethod.transform(Resource.this, data.resourceMethods)); this.locator = data.locator == null ? null : new ResourceMethod(Resource.this, data.locator); this.childResources = immutableCopy(Resource.transform(Resource.this, data.childResources)); } @Override public String getPath() { return data.path; } @Override public PathPattern getPathPattern() { return data.pathPattern; } /** * Get the parent resource for this resource model or {@code null} in case this * resource is a top-level resource and does not have a parent. * * @return parent resource or {@code null} if the resource does not have a parent. * @since 2.1 */ public Resource getParent() { return parent; } /** * Get the resource name. *

* If the resource was constructed from a JAX-RS annotated resource class, * the resource name will be set to the {@link Class#getName() fully-qualified name} * of the resource class. * * @return reference JAX-RS resource handler class. */ public String getName() { return name.get(); } /** * Return a list of resource names. * * @return a list of resource names. */ public List getNames() { return data.names; } /** * Provides a non-null list of resource methods available on the resource. * * @return non-null abstract resource method list. */ public List getResourceMethods() { return resourceMethods; } /** * Provides a resource locator available on the resource. * * @return Resource locator if it is present, null otherwise. */ public ResourceMethod getResourceLocator() { return locator; } /** * Provides resource methods and resource locator are available on the resource. The list is ordered so that resource * methods are positioned first before resource locator. * * @return List of resource methods and resource locator. */ public List getAllMethods() { final LinkedList methodsAndLocators = Lists.newLinkedList(getResourceMethods()); final ResourceMethod loc = getResourceLocator(); if (loc != null) { methodsAndLocators.add(loc); } return methodsAndLocators; } /** * Returns the list of child resources available on this resource. * * @return Non-null list of child resources (may be empty). */ public List getChildResources() { return childResources; } /** * Get the method handler classes for the resource methods registered on the resource. * * @return resource method handler classes. */ public Set> getHandlerClasses() { return data.handlerClasses; } /** * Get the method handler (singleton) instances for the resource methods registered * on the resource. * * @return resource method handler instances. */ public Set getHandlerInstances() { return data.handlerInstances; } @Override public void accept(ResourceModelVisitor visitor) { if (getParent() == null) { visitor.visitResource(this); } else { visitor.visitChildResource(this); } } /** * Get the flag indicating whether the resource is extended or is a core of exposed RESTful API. *

* Extended resource model components are helper components that are not considered as a core of a * RESTful API. These can be for example {@code OPTIONS} {@link ResourceMethod resource methods} * added by {@link org.glassfish.jersey.server.model.ModelProcessor model processors} * or {@code application.wadl} resource producing the WADL. Both resource are rather supportive * than the core of RESTful API. *

* * @return {@code true} if the resource is extended. * @see org.glassfish.jersey.server.model.ExtendedResource * * @since 2.5.1 */ public boolean isExtended() { return data.extended; } @Override public String toString() { return data.toString(); } @Override public List getComponents() { List components = new LinkedList(); components.addAll(getChildResources()); components.addAll(getResourceMethods()); final ResourceMethod resourceLocator = getResourceLocator(); if (resourceLocator != null) { components.add(resourceLocator); } return components; } }