Coverage report

  %line %branch
org.apache.jetspeed.util.Streams
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 1   
 /*
 2   
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3   
  * contributor license agreements.  See the NOTICE file distributed with
 4   
  * this work for additional information regarding copyright ownership.
 5   
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6   
  * (the "License"); you may not use this file except in compliance with
 7   
  * the License.  You may obtain a copy of the License at
 8   
  *
 9   
  *      http://www.apache.org/licenses/LICENSE-2.0
 10   
  *
 11   
  * Unless required by applicable law or agreed to in writing, software
 12   
  * distributed under the License is distributed on an "AS IS" BASIS,
 13   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14   
  * See the License for the specific language governing permissions and
 15   
  * limitations under the License.
 16   
  */
 17   
 package org.apache.jetspeed.util;
 18   
 
 19   
 import java.io.ByteArrayOutputStream;
 20   
 import java.io.InputStream;
 21   
 import java.io.IOException;
 22   
 import java.io.OutputStream;
 23   
 import java.io.OutputStreamWriter;
 24   
 import java.io.Reader;
 25   
 import java.io.Writer;
 26   
 import java.io.InputStreamReader;
 27   
 
 28   
 /**
 29   
  * Utility functions related to Streams.
 30   
  *
 31   
  * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
 32   
  * @version $Id: Streams.java 516448 2007-03-09 16:25:47Z ate $
 33   
  */
 34  0 
 public class Streams
 35   
 {
 36   
   static final int BLOCK_SIZE=4096;
 37   
 
 38   
   public static void drain(InputStream r,OutputStream w) throws IOException
 39   
   {
 40  0 
       byte[] bytes=new byte[BLOCK_SIZE];
 41   
       try
 42   
       {
 43  0 
         int length=r.read(bytes);
 44  0 
         while(length!=-1)
 45   
         {
 46  0 
             if(length!=0)
 47   
                 {
 48  0 
                     w.write(bytes,0,length);
 49   
                 }
 50  0 
             length=r.read(bytes);
 51   
         }
 52   
     }
 53   
     finally
 54   
     {
 55  0 
       bytes=null;
 56  0 
     }
 57   
 
 58  0 
   }
 59   
 
 60   
   public static void drain(Reader r,Writer w) throws IOException
 61   
   {
 62  0 
     char[] bytes=new class="keyword">char[BLOCK_SIZE];
 63   
     try
 64   
     {
 65  0 
         int length=r.read(bytes);
 66  0 
         while(length!=-1)
 67   
         {
 68  0 
             if(length!=0)
 69   
             {
 70  0 
                 w.write(bytes,0,length);
 71   
             }
 72  0 
             length=r.read(bytes);
 73   
         }
 74   
     }
 75   
     finally
 76   
     {
 77  0 
         bytes=null;
 78  0 
     }
 79   
 
 80  0 
   }
 81   
 
 82   
   public static void drain(Reader r,OutputStream os) throws IOException
 83   
   {
 84  0 
         Writer w=new OutputStreamWriter(os);
 85  0 
         drain(r,w);
 86  0 
         w.flush();
 87  0 
   }
 88   
 
 89   
   public static void drain(InputStream is, Writer w) throws IOException
 90   
   {
 91  0 
       Reader r = new InputStreamReader(is);
 92  0 
       drain(r,w);
 93  0 
       w.flush();
 94  0 
   }
 95   
 
 96   
   public static byte[] drain(InputStream r) throws IOException
 97   
   {
 98  0 
         ByteArrayOutputStream bytes=new ByteArrayOutputStream();
 99  0 
         drain(r,bytes);
 100  0 
         return bytes.toByteArray();
 101   
   }
 102   
 
 103   
   public static String getAsString(InputStream is)
 104   
   {
 105  0 
       int c=0;
 106  0 
       char lineBuffer[]=new class="keyword">char[128], buf[]=lineBuffer;
 107  0 
       int room= buf.length, offset=0;
 108   
       try
 109   
       {
 110   
           loop: while (true)
 111   
           {
 112   
             // read chars into a buffer which grows as needed
 113  0 
                 switch (c = is.read() )
 114   
                 {
 115  0 
                     case -1: break loop;
 116   
 
 117  0 
                     default: if (--room < 0)
 118   
                              {
 119  0 
                                  buf = new char[offset + 128];
 120  0 
                                  room = buf.length - offset - 1;
 121  0 
                                  System.arraycopy(lineBuffer, 0,
 122   
                                           buf, 0, offset);
 123  0 
                                  lineBuffer = buf;
 124   
                              }
 125  0 
                              buf[offset++] = (char) c;
 126  0 
                              break;
 127   
                 }
 128   
           }
 129   
       }
 130  0 
       catch(IOException ioe)
 131   
       {
 132  0 
           ioe.printStackTrace();
 133  0 
       }
 134  0 
       if ((c == -1) && (offset == 0))
 135   
       {
 136  0 
           return null;
 137   
       }
 138  0 
       return String.copyValueOf(buf, 0, offset);
 139   
   }
 140   
 
 141   
 
 142   
 
 143   
 }

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