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A bundle project producing JAX-RS RI bundles. The primary artifact is an "all-in-one" OSGi-fied JAX-RS RI bundle (jaxrs-ri.jar). Attached to that are two compressed JAX-RS RI archives. The first archive (jaxrs-ri.zip) consists of binary RI bits and contains the API jar (under "api" directory), RI libraries (under "lib" directory) as well as all external RI dependencies (under "ext" directory). The secondary archive (jaxrs-ri-src.zip) contains buildable JAX-RS RI source bundle and contains the API jar (under "api" directory), RI sources (under "src" directory) as well as all external RI dependencies (under "ext" directory). The second archive also contains "build.xml" ANT script that builds the RI sources. To build the JAX-RS RI simply unzip the archive, cd to the created jaxrs-ri directory and invoke "ant" from the command line.

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2013 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:
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 * 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
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 */
package org.glassfish.jersey.server.model;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.ws.rs.Consumes;
import javax.ws.rs.Encoded;
import javax.ws.rs.HttpMethod;
import javax.ws.rs.NameBinding;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.container.AsyncResponse;
import javax.ws.rs.container.Suspended;
import javax.ws.rs.core.MediaType;

import org.glassfish.jersey.internal.Errors;
import org.glassfish.jersey.internal.util.Producer;
import org.glassfish.jersey.internal.util.ReflectionHelper;
import org.glassfish.jersey.internal.util.Tokenizer;
import org.glassfish.jersey.server.ManagedAsync;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.model.internal.ModelHelper;

/**
 * Utility class for constructing resource model from JAX-RS annotated POJO.
 *
 * @author Jakub Podlesak (jakub.podlesak at oracle.com)
 */
final class IntrospectionModeller {

    private static final Logger LOGGER = Logger.getLogger(IntrospectionModeller.class.getName());

    // introspected annotated JAX-RS resource class
    private final Class handlerClass;
    // validation flag
    private final boolean disableValidation;

    /**
     * Create a new introspection modeller for a given JAX-RS resource class.
     *
     * @param handlerClass      JAX-RS resource (handler) class.
     * @param disableValidation if set to {@code true}, then any model validation checks will be disabled.
     */
    public IntrospectionModeller(Class handlerClass, boolean disableValidation) {
        this.handlerClass = handlerClass;
        this.disableValidation = disableValidation;
    }

    /**
     * Create a new resource model builder for the introspected class.
     *
     * The model returned is filled with the introspected data.
     *
     * @return new resource model builder for the introspected class.
     */
    public Resource.Builder createResourceBuilder() {
        return Errors.processWithException(new Producer() {
            @Override
            public Resource.Builder call() {
                return doCreateResourceBuilder();
            }
        });
    }

    private Resource.Builder doCreateResourceBuilder() {
        if (!disableValidation) {
            checkForNonPublicMethodIssues();
        }

        final Class annotatedResourceClass = ModelHelper.getAnnotatedResourceClass(handlerClass);
        final Path rPathAnnotation = annotatedResourceClass.getAnnotation(Path.class);

        final boolean keepEncodedParams =
                (null != annotatedResourceClass.getAnnotation(Encoded.class));

        final List defaultConsumedTypes =
                extractMediaTypes(annotatedResourceClass.getAnnotation(Consumes.class));
        final List defaultProducedTypes =
                extractMediaTypes(annotatedResourceClass.getAnnotation(Produces.class));
        final Collection> defaultNameBindings =
                ReflectionHelper.getAnnotationTypes(annotatedResourceClass, NameBinding.class);

        final MethodList methodList = new MethodList(handlerClass);

        checkResourceClassSetters(methodList, keepEncodedParams);
        checkResourceClassFields(keepEncodedParams, InvocableValidator.isSingleton(handlerClass));

        Resource.Builder resourceBuilder;

        if (null != rPathAnnotation) {
            resourceBuilder = Resource.builder(rPathAnnotation.value());
        } else {
            resourceBuilder = Resource.builder();
        }

        resourceBuilder.name(handlerClass.getName());

        addResourceMethods(resourceBuilder, methodList, keepEncodedParams,
                defaultConsumedTypes, defaultProducedTypes, defaultNameBindings);
        addSubResourceMethods(resourceBuilder, methodList, keepEncodedParams,
                defaultConsumedTypes, defaultProducedTypes, defaultNameBindings);
        addSubResourceLocators(resourceBuilder, methodList, keepEncodedParams);

        if (LOGGER.isLoggable(Level.FINEST)) {
            LOGGER.finest(LocalizationMessages.NEW_AR_CREATED_BY_INTROSPECTION_MODELER(
                    resourceBuilder.toString()));
        }

        return resourceBuilder;
    }

    private void checkForNonPublicMethodIssues() {
        final MethodList allDeclaredMethods = new MethodList(getAllDeclaredMethods(handlerClass));

        // non-public resource methods
        for (AnnotatedMethod m : allDeclaredMethods.withMetaAnnotation(HttpMethod.class).
                withoutAnnotation(Path.class).isNotPublic()) {
            Errors.warning(handlerClass, LocalizationMessages.NON_PUB_RES_METHOD(m.getMethod().toGenericString()));
        }
        // non-public subres methods
        for (AnnotatedMethod m : allDeclaredMethods.withMetaAnnotation(HttpMethod.class).
                withAnnotation(Path.class).isNotPublic()) {
            Errors.warning(handlerClass, LocalizationMessages.NON_PUB_SUB_RES_METHOD(m.getMethod().toGenericString()));
        }
        // non-public subres locators
        for (AnnotatedMethod m : allDeclaredMethods.withoutMetaAnnotation(HttpMethod.class).
                withAnnotation(Path.class).isNotPublic()) {
            Errors.warning(handlerClass, LocalizationMessages.NON_PUB_SUB_RES_LOC(m.getMethod().toGenericString()));
        }
    }

    private void checkResourceClassSetters(final MethodList methodList, final boolean encodedFlag) {
        for (AnnotatedMethod method : methodList.withoutMetaAnnotation(HttpMethod.class).
                withoutAnnotation(Path.class).
                hasNumParams(1).
                hasReturnType(void.class).
                nameStartsWith("set")) {
            Parameter p = Parameter.create(
                    handlerClass,
                    method.getMethod().getDeclaringClass(),
                    encodedFlag || method.isAnnotationPresent(Encoded.class),
                    method.getParameterTypes()[0],
                    method.getGenericParameterTypes()[0],
                    method.getAnnotations());
            if (null != p) {
                ResourceMethodValidator.validateParameter(p, method.getMethod(), method.getMethod().toGenericString(), "1",
                        InvocableValidator.isSingleton(handlerClass));
            }
        }
    }

    private void checkResourceClassFields(final boolean encodedFlag, boolean isInSingleton) {
        for (Field field : AccessController.doPrivileged(ReflectionHelper.getDeclaredFieldsPA(handlerClass))) {
            if (field.getDeclaredAnnotations().length > 0) {
                Parameter p = Parameter.create(
                        handlerClass,
                        field.getDeclaringClass(),
                        encodedFlag || field.isAnnotationPresent(Encoded.class),
                        field.getType(),
                        field.getGenericType(),
                        field.getAnnotations());
                if (null != p) {
                    ResourceMethodValidator.validateParameter(p, field, field.toGenericString(), field.getName(),
                            isInSingleton);
                }
            }
        }
    }

    private List getAllDeclaredMethods(final Class clazz) {
        final List result = new LinkedList();

        AccessController.doPrivileged(new PrivilegedAction() {

            @Override
            public Object run() {
                Class current = clazz;
                while (current != Object.class && current != null) {
                    result.addAll(Arrays.asList(current.getDeclaredMethods()));
                    current = current.getSuperclass();
                }
                return null;
            }
        });

        return result;
    }

    private static List resolveConsumedTypes(final AnnotatedMethod am, final List defaultConsumedTypes) {
        // Override default types if the annotation is present on the method
        if (am.isAnnotationPresent(Consumes.class)) {
            return extractMediaTypes(am.getAnnotation(Consumes.class));
        }

        return defaultConsumedTypes;
    }

    private static List resolveProducedTypes(final AnnotatedMethod am, final List defaultProducedTypes) {
        // Override default types if the annotation is present on the method
        if (am.isAnnotationPresent(Produces.class)) {
            return extractMediaTypes(am.getAnnotation(Produces.class));
        }

        return defaultProducedTypes;
    }

    private static List extractMediaTypes(final Consumes annotation) {
        return (annotation != null) ? extractMediaTypes(annotation.value()) : Collections.emptyList();
    }

    private static List extractMediaTypes(final Produces annotation) {
        return (annotation != null) ? extractMediaTypes(annotation.value()) : Collections.emptyList();
    }

    private static List extractMediaTypes(final String[] values) {
        if (values.length == 0) {
            return Collections.emptyList();
        }

        final List types = new ArrayList(values.length);
        for (final String mtEntry : values) {
            for (final String mt : Tokenizer.tokenize(mtEntry, ",")) {
                types.add(MediaType.valueOf(mt));
            }
        }

        return types;
    }

    private static void introspectAsyncFeatures(AnnotatedMethod am, ResourceMethod.Builder resourceMethodBuilder) {
        if (am.isAnnotationPresent(ManagedAsync.class)) {
            resourceMethodBuilder.managedAsync();
        }

        for (Annotation[] annotations : am.getParameterAnnotations()) {
            for (Annotation annotation : annotations) {
                if (annotation.annotationType() == Suspended.class) {
                    resourceMethodBuilder.suspended(AsyncResponse.NO_TIMEOUT, TimeUnit.MILLISECONDS);
                    return;
                }
            }
        }
    }

    private void addResourceMethods(
            final Resource.Builder resourceBuilder,
            final MethodList methodList,
            final boolean encodedParameters,
            final List defaultConsumedTypes,
            final List defaultProducedTypes,
            final Collection> defaultNameBindings
    ) {
        for (AnnotatedMethod am : methodList.withMetaAnnotation(HttpMethod.class).withoutAnnotation(Path.class)) {
            ResourceMethod.Builder methodBuilder =
                    resourceBuilder.addMethod(am.getMetaMethodAnnotations(HttpMethod.class).get(0).value())
                            .consumes(resolveConsumedTypes(am, defaultConsumedTypes))
                            .produces(resolveProducedTypes(am, defaultProducedTypes))
                            .encodedParameters(encodedParameters || am.isAnnotationPresent(Encoded.class))
                            .nameBindings(defaultNameBindings)
                            .nameBindings(am.getAnnotations())
                            .handledBy(handlerClass, am.getMethod())
                            .validateUsing(am.getDeclaredMethod());

            introspectAsyncFeatures(am, methodBuilder);
        }
    }

    private void addSubResourceMethods(
            final Resource.Builder resourceBuilder,
            final MethodList methodList,
            final boolean encodedParameters,
            final List defaultConsumedTypes,
            final List defaultProducedTypes,
            final Collection> defaultNameBindings
    ) {

        for (AnnotatedMethod am : methodList.withMetaAnnotation(HttpMethod.class).withAnnotation(Path.class)) {
            Resource.Builder childResourceBuilder = resourceBuilder.addChildResource(am.getAnnotation(Path.class).value());

            ResourceMethod.Builder methodBuilder =
                    childResourceBuilder.addMethod(am.getMetaMethodAnnotations(HttpMethod.class).get(0).value())
                            .consumes(resolveConsumedTypes(am, defaultConsumedTypes))
                            .produces(resolveProducedTypes(am, defaultProducedTypes))
                            .encodedParameters(encodedParameters || am.isAnnotationPresent(Encoded.class))
                            .nameBindings(defaultNameBindings)
                            .nameBindings(am.getAnnotations())
                            .handledBy(handlerClass, am.getMethod())
                            .validateUsing(am.getDeclaredMethod());

            introspectAsyncFeatures(am, methodBuilder);
        }
    }

    private void addSubResourceLocators(
            Resource.Builder resourceBuilder,
            MethodList methodList,
            boolean encodedParameters) {

        for (AnnotatedMethod am : methodList.withoutMetaAnnotation(HttpMethod.class).withAnnotation(Path.class)) {
            final String path = am.getAnnotation(Path.class).value();
            Resource.Builder builder = resourceBuilder;
            if (path != null && !path.isEmpty() && !path.equals("/")) {
                builder = resourceBuilder.addChildResource(path);
            }

            builder.addMethod()
                    .encodedParameters(encodedParameters || am.isAnnotationPresent(Encoded.class))
                    .handledBy(handlerClass, am.getMethod())
                    .validateUsing(am.getDeclaredMethod());
        }
    }
}
 















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