/*

 * 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;

import com.sun.istack.internal.NotNull;

import com.sun.xml.internal.ws.api.SOAPVersion;

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

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

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

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

import org.xml.sax.ContentHandler;

import org.xml.sax.ErrorHandler;

import org.xml.sax.SAXException;

import javax.xml.stream.XMLStreamException;

import javax.xml.stream.XMLStreamReader;

import javax.xml.stream.XMLStreamWriter;

import javax.xml.transform.Source;

/**

 * {@link Message} that has no body.

 *

 * @author Kohsuke Kawaguchi

 */

public class EmptyMessageImpl extends AbstractMessageImpl {

    /**

     * If a message has no payload, it's more likely to have

     * some header, so we create it eagerly here.

     */

    private final MessageHeaders headers;

    private final AttachmentSet attachmentSet;

    public EmptyMessageImpl(SOAPVersion version) {

        super(version);

        this.headers = new HeaderList(version);

        this.attachmentSet = new AttachmentSetImpl();

    }

    public EmptyMessageImpl(MessageHeaders headers, @NotNull AttachmentSet attachmentSet, SOAPVersion version){

        super(version);

        if(headers==null)

            headers = new HeaderList(version);

        this.attachmentSet = attachmentSet;

        this.headers = headers;

    }

    /**

     * Copy constructor.

     */

    private EmptyMessageImpl(EmptyMessageImpl that) {

        super(that);

        this.headers = new HeaderList(that.headers);

        this.attachmentSet = that.attachmentSet;

    }

    public boolean hasHeaders() {

        return headers.hasHeaders();

    }

    public MessageHeaders getHeaders() {

        return headers;

    }

    public String getPayloadLocalPart() {

        return null;

    }

    public String getPayloadNamespaceURI() {

        return null;

    }

    public boolean hasPayload() {

        return false;

    }

    public Source readPayloadAsSource() {

        return null;

    }

    public XMLStreamReader readPayload() throws XMLStreamException {

        return null;

    }

    public void writePayloadTo(XMLStreamWriter sw) throws XMLStreamException {

        // noop

    }

    public void writePayloadTo(ContentHandler contentHandler, ErrorHandler errorHandler, boolean fragment) throws SAXException {

        // noop

    }

    public Message copy() {

    }

}