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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 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
 * https://glassfish.dev.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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 *
 * Modifications:
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package com.sun.istack;

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();
    }
}