org.glassfish.jersey.moxy.json.internal.ConfigurableMoxyJsonProvider Maven / Gradle / Ivy

Go to download
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013-2015 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.moxy.json.internal;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.security.AccessController;
import java.util.Map;
import java.util.Set;

import javax.ws.rs.core.Configuration;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Providers;

import javax.inject.Singleton;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.PropertyException;
import javax.xml.bind.Unmarshaller;

import org.glassfish.jersey.internal.util.ReflectionHelper;
import org.glassfish.jersey.moxy.json.MoxyJsonConfig;

import org.eclipse.persistence.internal.core.helper.CoreClassConstants;
import org.eclipse.persistence.jaxb.MarshallerProperties;
import org.eclipse.persistence.jaxb.UnmarshallerProperties;
import org.eclipse.persistence.jaxb.rs.MOXyJsonProvider;

import jersey.repackaged.com.google.common.collect.Maps;
import jersey.repackaged.com.google.common.collect.Sets;

/**
 * Jersey specific {@link MOXyJsonProvider} that can be configured via {@code ContextResolver} instance.
 *
 * @author Michal Gajdos
 */
@Singleton
public class ConfigurableMoxyJsonProvider extends MOXyJsonProvider {

    private static final Set MARSHALLER_PROPERTY_NAMES;
    private static final Set UNMARSHALLER_PROPERTY_NAMES;

    static {
        MARSHALLER_PROPERTY_NAMES = getPropertyNames(MarshallerProperties.class);
        UNMARSHALLER_PROPERTY_NAMES = getPropertyNames(UnmarshallerProperties.class);
    }

    private static Set getPropertyNames(final Class propertiesClass) {
        final Set propertyNames = Sets.newHashSet();

        for (final Field field : AccessController.doPrivileged(ReflectionHelper.getDeclaredFieldsPA(propertiesClass))) {
            if (String.class == field.getType()
                    && Modifier.isStatic(field.getModifiers())) {
                try {
                    propertyNames.add((String) field.get(null));
                } catch (final IllegalAccessException e) {
                    // NOOP.
                }
            }
        }

        return propertyNames;
    }

    @Context
    private Providers providers;

    @Context
    private Configuration config;

    private MoxyJsonConfig globalConfig;

    private MoxyJsonConfig getGlobalConfig() {
        if (globalConfig == null) {
            globalConfig = new MoxyJsonConfig()
                    .setMarshallerProperties(getConfigProperties(config, MARSHALLER_PROPERTY_NAMES))
                    .setUnmarshallerProperties(getConfigProperties(config, UNMARSHALLER_PROPERTY_NAMES));
        }
        return globalConfig;
    }

    private Map getConfigProperties(final Configuration config, final Set propertyNames) {
        final Map properties = Maps.newHashMap();

        for (final String propertyName : propertyNames) {
            final Object property = config.getProperty(propertyName);
            if (property != null) {
                properties.put(propertyName, property);
            }
        }

        return properties;
    }

    @Override
    protected void preReadFrom(final Class