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

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Jersey JSON entity providers support module based on EclipseLink MOXy.
There is a newer version: 4.0.0-M1
/*
 * Copyright (c) 2013, 2023 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

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.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

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

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

/**
 * 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 = new HashSet<>();

        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;
    }

    private final Configuration config;

    @Inject
    public ConfigurableMoxyJsonProvider(@Context Providers providers, @Context Configuration config) {
        this.providers = providers;
        this.config = 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 = new HashMap<>();

        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