1 /*
   2  * Copyright (c) 1997, 2017, 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.xml.internal.messaging.saaj.util;
  27 
  28 import java.io.*;
  29 
  30 import javax.xml.transform.stream.StreamSource;
  31 
  32 
  33 /**
  34  *
  35  * @author Anil Vijendran
  36  */
  37 public class JAXMStreamSource extends StreamSource {
  38     InputStream in;
  39     Reader reader;
  40     private static final boolean lazyContentLength;
  41     static {
  42         lazyContentLength = SAAJUtil.getSystemBoolean("saaj.lazy.contentlength");
  43     }
  44     public JAXMStreamSource(InputStream is) throws IOException {
  45         if (lazyContentLength) {
  46             in = is;
  47         } else if (is instanceof ByteInputStream) {
  48             this.in = (ByteInputStream) is;
  49         } else {
  50             ByteOutputStream bout = null;
  51             try {
  52                 bout = new ByteOutputStream();
  53                 bout.write(is);
  54                 this.in = bout.newInputStream();
  55             } finally {
  56                 if (bout != null)
  57                     bout.close();
  58             }
  59         }
  60     }
  61 
  62     public JAXMStreamSource(Reader rdr) throws IOException {
  63 
  64         if (lazyContentLength) {
  65             this.reader = rdr;
  66             return;
  67         }
  68         CharArrayWriter cout = new CharArrayWriter();
  69         char[] temp = new char[1024];
  70         int len;
  71 
  72         while (-1 != (len = rdr.read(temp)))
  73             cout.write(temp, 0, len);
  74 
  75         this.reader = new CharArrayReader(cout.toCharArray(), 0, cout.size());
  76     }
  77 
  78     @Override
  79     public InputStream getInputStream() {
  80         return in;
  81     }
  82 
  83     @Override
  84     public Reader getReader() {
  85         return reader;
  86     }
  87 
  88     public void reset() throws IOException {
  89             if (in != null)
  90                 in.reset();
  91             if (reader != null)
  92                 reader.reset();
  93     }
  94 }