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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package com.sun.xml.internal.ws.message.jaxb;

import com.sun.istack.internal.NotNull;

import com.sun.istack.internal.XMLStreamException2;

import com.sun.xml.internal.bind.api.Bridge;

import com.sun.xml.internal.stream.buffer.XMLStreamBuffer;

import com.sun.xml.internal.stream.buffer.XMLStreamBufferResult;

import com.sun.xml.internal.ws.api.message.Header;

import com.sun.xml.internal.ws.encoding.SOAPBindingCodec;

import com.sun.xml.internal.ws.message.AbstractHeaderImpl;

import com.sun.xml.internal.ws.message.RootElementSniffer;

import com.sun.xml.internal.ws.spi.db.BindingContext;

import com.sun.xml.internal.ws.spi.db.XMLBridge;

import com.sun.xml.internal.ws.streaming.XMLStreamWriterUtil;

import org.xml.sax.Attributes;

import org.xml.sax.ContentHandler;

import org.xml.sax.ErrorHandler;

import org.xml.sax.SAXException;

import org.xml.sax.SAXParseException;

import javax.xml.bind.JAXBElement;

import javax.xml.bind.JAXBException;

import javax.xml.bind.Unmarshaller;

import javax.xml.bind.util.JAXBResult;

import javax.xml.namespace.QName;

import javax.xml.soap.SOAPException;

import javax.xml.soap.SOAPMessage;

import javax.xml.soap.SOAPHeader;

import javax.xml.stream.XMLStreamException;

import javax.xml.stream.XMLStreamReader;

import javax.xml.stream.XMLStreamWriter;

import java.io.OutputStream;

/**

 * {@link Header} whose physical data representation is a JAXB bean.

 *

 * @author Kohsuke Kawaguchi

 */

public final class JAXBHeader extends AbstractHeaderImpl {

    /**

     * The JAXB object that represents the header.

     */

    private final Object jaxbObject;

    private final XMLBridge bridge;

    // information about this header. lazily obtained.

    private String nsUri;

    private String localName;

    private Attributes atts;

    /**

     * Once the header is turned into infoset,

     * this buffer keeps it.

     */

    private XMLStreamBuffer infoset;

    public JAXBHeader(BindingContext context, Object jaxbObject) {

        this.jaxbObject = jaxbObject;

//        this.bridge = new MarshallerBridge(context);

        this.bridge = context.createFragmentBridge();

        if (jaxbObject instanceof JAXBElement) {

            JAXBElement e = (JAXBElement) jaxbObject;

            this.nsUri = e.getName().getNamespaceURI();

            this.localName = e.getName().getLocalPart();

        }

    }

    public JAXBHeader(XMLBridge bridge, Object jaxbObject) {

        this.jaxbObject = jaxbObject;

        this.bridge = bridge;

        QName tagName = bridge.getTypeInfo().tagName;

        this.nsUri = tagName.getNamespaceURI();

        this.localName = tagName.getLocalPart();

    }

    /**

     * Lazily parse the first element to obtain attribute values on it.

     */

    private void parse() {

        RootElementSniffer sniffer = new RootElementSniffer();

        try {

            bridge.marshal(jaxbObject,sniffer,null);

        } catch (JAXBException e) {

            // if it's due to us aborting the processing after the first element,

            // we can safely ignore this exception.

            //

            // if it's due to error in the object, the same error will be reported

            // when the readHeader() method is used, so we don't have to report

            // an error right now.

            nsUri = sniffer.getNsUri();

            localName = sniffer.getLocalName();

            atts = sniffer.getAttributes();

        }

    }

    public @NotNull String getNamespaceURI() {

        if(nsUri==null)

            parse();

        return nsUri;

    }

    public @NotNull String getLocalPart() {

        if(localName==null)

            parse();

        return localName;

    }

    public String getAttribute(String nsUri, String localName) {

        if(atts==null)

            parse();

        return atts.getValue(nsUri,localName);

    }

    public XMLStreamReader readHeader() throws XMLStreamException {

        }

    }

    public <T> T readAsJAXB(Unmarshaller unmarshaller) throws JAXBException {

        try {

            JAXBResult r = new JAXBResult(unmarshaller);

            // bridge marshals a fragment, so we need to add start/endDocument by ourselves

            r.getHandler().startDocument();

            bridge.marshal(jaxbObject,r);

            r.getHandler().endDocument();

            return (T)r.getResult();

        } catch (SAXException e) {

            throw new JAXBException(e);

        }

    }

    /** @deprecated */

    public <T> T readAsJAXB(Bridge<T> bridge) throws JAXBException {

        return bridge.unmarshal(new JAXBBridgeSource(this.bridge,jaxbObject));

    }

        public <T> T readAsJAXB(XMLBridge<T> bond) throws JAXBException {

        return bond.unmarshal(new JAXBBridgeSource(this.bridge,jaxbObject),null);

        }

    public void writeTo(XMLStreamWriter sw) throws XMLStreamException {

        try {

            // Get the encoding of the writer

            String encoding = XMLStreamWriterUtil.getEncoding(sw);

            // Get output stream and use JAXB UTF-8 writer

            OutputStream os = bridge.supportOutputStream() ? XMLStreamWriterUtil.getOutputStream(sw) : null;

            if (os != null && encoding != null && encoding.equalsIgnoreCase(SOAPBindingCodec.UTF8_ENCODING)) {

                bridge.marshal(jaxbObject, os, sw.getNamespaceContext(), null);

            } else {

                bridge.marshal(jaxbObject,sw, null);

            }

        } catch (JAXBException e) {

            throw new XMLStreamException2(e);

        }

    }

    public void writeTo(SOAPMessage saaj) throws SOAPException {

        try {

            SOAPHeader header = saaj.getSOAPHeader();

            if (header == null)

                header = saaj.getSOAPPart().getEnvelope().addHeader();

            bridge.marshal(jaxbObject,header);

        } catch (JAXBException e) {

            throw new SOAPException(e);

        }

    }

    public void writeTo(ContentHandler contentHandler, ErrorHandler errorHandler) throws SAXException {

        try {

            bridge.marshal(jaxbObject,contentHandler,null);

        } catch (JAXBException e) {

            SAXParseException x = new SAXParseException(e.getMessage(),null,null,-1,-1,e);

            errorHandler.fatalError(x);

            throw x;

        }

    }

}