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A bundle containing code of all jar-based modules that provide JAX-RS and Jersey-related features. Such a bundle is *only intended* for developers that do not use Maven's dependency system. The bundle does not include code for contributes, tests and samples.

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/*
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc. 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://jersey.dev.java.net/CDDL+GPL.html
 * or jersey/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 jersey/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [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 com.sun.jersey.json.impl;

import com.sun.jersey.api.json.JSONConfigurated;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.api.json.JSONUnmarshaller;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.Charset;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.stream.XMLStreamReader;

/**
 *
 * @author [email protected]
 */
public class BaseJSONUnmarshaller implements JSONUnmarshaller, JSONConfigurated {

    private static final Charset UTF8 = Charset.forName("UTF-8");

    protected final Unmarshaller jaxbUnmarshaller;

    protected final JSONConfiguration jsonConfig;


    public BaseJSONUnmarshaller(JAXBContext jaxbContext, JSONConfiguration jsonConfig) throws JAXBException {
        this(jaxbContext.createUnmarshaller(), jsonConfig);
    }

    public BaseJSONUnmarshaller(Unmarshaller jaxbUnmarshaller, JSONConfiguration jsonConfig) {
        this.jaxbUnmarshaller = jaxbUnmarshaller;
        this.jsonConfig = jsonConfig;
    }


    // JSONConfigurated

    public JSONConfiguration getJSONConfiguration() {
        return jsonConfig;
    }


    // JSONUnmarshaller

    public  T unmarshalFromJSON(InputStream inputStream, Class expectedType) throws JAXBException {
        return unmarshalFromJSON(new InputStreamReader(inputStream, UTF8), expectedType);
    }

    public  T unmarshalFromJSON(Reader reader, Class expectedType) throws JAXBException {
        if (jsonConfig.isRootUnwrapping() || !expectedType.isAnnotationPresent(XmlRootElement.class)) {
            return unmarshalJAXBElementFromJSON(reader, expectedType).getValue();
        } else {
            return (T) jaxbUnmarshaller.unmarshal(createXmlStreamReader(reader, expectedType));
        }
    }

    public  JAXBElement unmarshalJAXBElementFromJSON(InputStream inputStream, Class declaredType) throws JAXBException {
        return unmarshalJAXBElementFromJSON(new InputStreamReader(inputStream, UTF8), declaredType);
    }

    public  JAXBElement unmarshalJAXBElementFromJSON(Reader reader, Class declaredType) throws JAXBException {
        return jaxbUnmarshaller.unmarshal(createXmlStreamReader(reader, declaredType), declaredType);
    }

    private XMLStreamReader createXmlStreamReader(Reader reader, Class expectedType) {
        return Stax2JsonFactory.createReader(reader, jsonConfig,
                jsonConfig.isRootUnwrapping() ? JSONHelper.getRootElementName(expectedType) : null);
    }
}