Coverage Report - org.apache.maven.shared.utils.cli.StreamFeeder
 
Classes in this File Line Coverage Branch Coverage Complexity
StreamFeeder
0%
0/36
0%
0/10
3
 
 1  
 package org.apache.maven.shared.utils.cli;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import java.io.IOException;
 23  
 import java.io.InputStream;
 24  
 import java.io.OutputStream;
 25  
 
 26  
 /**
 27  
  * Read from an InputStream and write the output to an OutputStream.
 28  
  *
 29  
  * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
 30  
  * @version $Id: StreamFeeder.java 1396135 2012-10-09 17:45:37Z krosenvold $
 31  
  */
 32  
 class StreamFeeder
 33  
     extends AbstractStreamHandler
 34  
 {
 35  
     private InputStream input;
 36  
 
 37  
     private OutputStream output;
 38  
 
 39  
 
 40  
     /**
 41  
      * Create a new StreamFeeder
 42  
      *
 43  
      * @param input  Stream to read from
 44  
      * @param output Stream to write to
 45  
      */
 46  
     public StreamFeeder( InputStream input, OutputStream output )
 47  0
     {
 48  0
         this.input = input;
 49  
 
 50  0
         this.output = output;
 51  0
     }
 52  
 
 53  
     // ----------------------------------------------------------------------
 54  
     // Runnable implementation
 55  
     // ----------------------------------------------------------------------
 56  
 
 57  
     public void run()
 58  
     {
 59  
         try
 60  
         {
 61  0
             feed();
 62  
         }
 63  0
         catch ( Throwable ex )
 64  
         {
 65  
             // Catched everything so the streams will be closed and flagged as done.
 66  
         }
 67  
         finally
 68  
         {
 69  0
             close();
 70  
 
 71  0
             synchronized ( this )
 72  
             {
 73  0
                 setDone();
 74  
 
 75  0
                 this.notifyAll();
 76  0
             }
 77  0
         }
 78  0
     }
 79  
 
 80  
     // ----------------------------------------------------------------------
 81  
     //
 82  
     // ----------------------------------------------------------------------
 83  
 
 84  
     public void close()
 85  
     {
 86  0
         if ( input != null )
 87  
         {
 88  0
             synchronized ( input )
 89  
             {
 90  
                 try
 91  
                 {
 92  0
                     input.close();
 93  
                 }
 94  0
                 catch ( IOException ex )
 95  
                 {
 96  
                     // ignore
 97  0
                 }
 98  
 
 99  0
                 input = null;
 100  0
             }
 101  
         }
 102  
 
 103  0
         if ( output != null )
 104  
         {
 105  0
             synchronized ( output )
 106  
             {
 107  
                 try
 108  
                 {
 109  0
                     output.close();
 110  
                 }
 111  0
                 catch ( IOException ex )
 112  
                 {
 113  
                     // ignore
 114  0
                 }
 115  
 
 116  0
                 output = null;
 117  0
             }
 118  
         }
 119  0
     }
 120  
 
 121  
     // ----------------------------------------------------------------------
 122  
     //
 123  
     // ----------------------------------------------------------------------
 124  
 
 125  
     private void feed()
 126  
         throws IOException
 127  
     {
 128  0
         int data = input.read();
 129  
 
 130  0
         while ( !isDone() && data != -1 )
 131  
         {
 132  0
             synchronized ( output )
 133  
             {
 134  0
                 if ( !isDisabled() )
 135  
                 {
 136  0
                     output.write( data );
 137  
                 }
 138  
 
 139  0
                 data = input.read();
 140  0
             }
 141  
         }
 142  0
     }
 143  
 
 144  
 }