/*

 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.

 * 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.  Sun designates this

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

 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package com.sun.istack.internal;

import javax.activation.DataSource;

import java.io.InputStream;

import java.io.ByteArrayInputStream;

import java.io.OutputStream;

/**

 * {@link DataSource} backed by a byte buffer.

 *

 * @author Kohsuke Kawaguchi

 */

public final class ByteArrayDataSource implements DataSource {

    private final String contentType;

    private final byte[] buf;

    private final int len;

    public ByteArrayDataSource(byte[] buf, String contentType) {

        this(buf,buf.length,contentType);

    }

    public ByteArrayDataSource(byte[] buf, int length, String contentType) {

        this.buf = buf;

        this.len = length;

        this.contentType = contentType;

    }

    public String getContentType() {

        if(contentType==null)

            return "application/octet-stream";

        return contentType;

    }

    public InputStream getInputStream() {

        return new ByteArrayInputStream(buf,0,len);

    }

    public String getName() {

        return null;

    }

    public OutputStream getOutputStream() {

        throw new UnsupportedOperationException();

    }

}