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JAX-WS Runtime with module descriptor
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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://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/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 glassfish/bootstrap/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
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 */

package com.sun.xml.ws.message;

import com.sun.istack.NotNull;
import com.sun.xml.ws.api.message.Attachment;
import com.sun.xml.ws.util.ByteArrayDataSource;
import com.sun.xml.ws.encoding.DataSourceStreamingDataHandler;

import java.io.ByteArrayInputStream;

import javax.activation.DataHandler;
import javax.xml.soap.AttachmentPart;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPMessage;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * @author Jitendra Kotamraju
 */
public final class ByteArrayAttachment implements Attachment {

    private final String contentId;
    private byte[] data;
    private int start;
    private final int len;
    private final String mimeType;

    public ByteArrayAttachment(@NotNull String contentId, byte[] data, int start, int len, String mimeType) {
        this.contentId = contentId;
        this.data = data;
        this.start = start;
        this.len = len;
        this.mimeType = mimeType;
    }
    
    public ByteArrayAttachment(@NotNull String contentId, byte[] data, String mimeType) {
        this(contentId, data, 0, data.length, mimeType);
    }

    public String getContentId() {
        return contentId;
    }

    public String getContentType() {
        return mimeType;
    }

    public byte[] asByteArray() {
        if(start!=0 || len!=data.length) {
            // if our buffer isn't exact, switch to the exact one
            byte[] exact = new byte[len];
            System.arraycopy(data,start,exact,0,len);
            start = 0;
            data = exact;
        }
        return data;
    }

    public DataHandler asDataHandler() {
        return new DataSourceStreamingDataHandler(new ByteArrayDataSource(data,start,len,getContentType()));
    }

    public Source asSource() {
        return new StreamSource(asInputStream());
    }

    public InputStream asInputStream() {
         return new ByteArrayInputStream(data,start,len);
    }

    public void writeTo(OutputStream os) throws IOException {
        os.write(asByteArray());
    }

    public void writeTo(SOAPMessage saaj) throws SOAPException {
        AttachmentPart part = saaj.createAttachmentPart();
        part.setDataHandler(asDataHandler());
        part.setContentId(contentId);
        saaj.addAttachmentPart(part);
    }

}