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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2011 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:
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 * 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
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package com.sun.jersey.core.impl.provider.entity;

import com.sun.jersey.core.provider.jaxb.AbstractListElementProvider;
import com.sun.jersey.spi.inject.Injectable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
import java.util.Collection;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
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 javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

/**
 *
 * @author [email protected]
 */
public class XMLListElementProvider extends AbstractListElementProvider {

    // Delay construction of factory
    private final Injectable xif;
    
    XMLListElementProvider(Injectable xif, Providers ps) {
        super(ps);

        this.xif = xif;
    }
    
    XMLListElementProvider(Injectable xif, Providers ps, MediaType mt) {
        super(ps, mt);

        this.xif = xif;
    }

    @Produces("application/xml")
    @Consumes("application/xml")
    public static final class App extends XMLListElementProvider {
        public App(@Context Injectable xif, @Context Providers ps) {
            super(xif, ps , MediaType.APPLICATION_XML_TYPE);
        }
    }
    
    @Produces("text/xml")
    @Consumes("text/xml")
    public static final class Text extends XMLListElementProvider {
        public Text(@Context Injectable xif, @Context Providers ps) {
            super(xif, ps , MediaType.TEXT_XML_TYPE);
        }
    }
    
    @Produces("*/*")
    @Consumes("*/*")
    public static final class General extends XMLListElementProvider {
        public General(@Context Injectable xif, @Context Providers ps) {
            super(xif, ps);
        }

        @Override
        protected boolean isSupported(MediaType m) {
            return m.getSubtype().endsWith("+xml");
        }
    }

    @Override
    protected final XMLStreamReader getXMLStreamReader(Class elementType, 
            MediaType mediaType,
            Unmarshaller u,
            InputStream entityStream)
            throws XMLStreamException {
        return xif.getValue().createXMLStreamReader(entityStream);
    }
    
    @Override
    public final void writeList(Class elementType, Collection t,
            MediaType mediaType, Charset c,
            Marshaller m, OutputStream entityStream)
            throws JAXBException, IOException {
        final String rootElement = getRootElementName(elementType);
        final String cName = c.name();

        entityStream.write(
                String.format("", cName).getBytes(cName));
        String property = "com.sun.xml.bind.xmlHeaders";
        String header;
        try {
            // standalone jaxb ri?
            header = (String) m.getProperty(property);
        } catch (PropertyException e) {
            // jaxb ri from jdk?
            property = "com.sun.xml.internal.bind.xmlHeaders";
            try {
                header = (String) m.getProperty(property);
            } catch (PropertyException ex) {
                // other jaxb implementation
                header = null;
                Logger.getLogger(XMLListElementProvider.class.getName()).log(
                        Level.WARNING, "@XmlHeader annotation is not supported with this JAXB implementation. Please use JAXB RI if you need this feature.");
            }
        }
        if (header != null) {
            m.setProperty(property, "");
            entityStream.write(header.getBytes(cName));
        }
        entityStream.write(String.format("<%s>", rootElement).getBytes(cName));
        for (Object o : t)
            m.marshal(o, entityStream);

        entityStream.write(String.format("", rootElement).getBytes(cName));
    }
}




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