1 /*
   2  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.istack.internal;
  27 
  28 import javax.activation.DataSource;
  29 import java.io.InputStream;
  30 import java.io.ByteArrayInputStream;
  31 import java.io.OutputStream;
  32 
  33 /**
  34  * {@link DataSource} backed by a byte buffer.
  35  *
  36  * @author Kohsuke Kawaguchi
  37  */
  38 public final class ByteArrayDataSource implements DataSource {
  39 
  40     private final String contentType;
  41     private final byte[] buf;
  42     private final int len;
  43 
  44     public ByteArrayDataSource(byte[] buf, String contentType) {
  45         this(buf,buf.length,contentType);
  46     }
  47     public ByteArrayDataSource(byte[] buf, int length, String contentType) {
  48         this.buf = buf;
  49         this.len = length;
  50         this.contentType = contentType;
  51     }
  52 
  53     public String getContentType() {
  54         if(contentType==null)
  55             return "application/octet-stream";
  56         return contentType;
  57     }
  58 
  59     public InputStream getInputStream() {
  60         return new ByteArrayInputStream(buf,0,len);
  61     }
  62 
  63     public String getName() {
  64         return null;
  65     }
  66 
  67     public OutputStream getOutputStream() {
  68         throw new UnsupportedOperationException();
  69     }
  70 }