Coverage Report - org.apache.commons.io.output.TeeOutputStream
 
Classes in this File Line Coverage Branch Coverage Complexity
TeeOutputStream
100%
19/19
N/A
1
 
 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.commons.io.output;
 18  
 
 19  
 import java.io.IOException;
 20  
 import java.io.OutputStream;
 21  
 
 22  
 /**
 23  
  * Classic splitter of OutputStream. Named after the unix 'tee' 
 24  
  * command. It allows a stream to be branched off so there 
 25  
  * are now two streams.
 26  
  *
 27  
  */
 28  
 public class TeeOutputStream extends ProxyOutputStream {
 29  
 
 30  
     /** the second OutputStream to write to */
 31  
     protected OutputStream branch; //TODO consider making this private
 32  
 
 33  
     /**
 34  
      * Constructs a TeeOutputStream.
 35  
      * @param out the main OutputStream
 36  
      * @param branch the second OutputStream
 37  
      */
 38  
     public TeeOutputStream(final OutputStream out, final OutputStream branch) {
 39  6
         super(out);
 40  6
         this.branch = branch;
 41  6
     }
 42  
 
 43  
     /**
 44  
      * Write the bytes to both streams.
 45  
      * @param b the bytes to write
 46  
      * @throws IOException if an I/O error occurs
 47  
      */
 48  
     @Override
 49  
     public synchronized void write(final byte[] b) throws IOException {
 50  2
         super.write(b);
 51  2
         this.branch.write(b);
 52  2
     }
 53  
 
 54  
     /**
 55  
      * Write the specified bytes to both streams.
 56  
      * @param b the bytes to write
 57  
      * @param off The start offset
 58  
      * @param len The number of bytes to write
 59  
      * @throws IOException if an I/O error occurs
 60  
      */
 61  
     @Override
 62  
     public synchronized void write(final byte[] b, final int off, final int len) throws IOException {
 63  2
         super.write(b, off, len);
 64  2
         this.branch.write(b, off, len);
 65  2
     }
 66  
 
 67  
     /**
 68  
      * Write a byte to both streams.
 69  
      * @param b the byte to write
 70  
      * @throws IOException if an I/O error occurs
 71  
      */
 72  
     @Override
 73  
     public synchronized void write(final int b) throws IOException {
 74  40
         super.write(b);
 75  40
         this.branch.write(b);
 76  40
     }
 77  
 
 78  
     /**
 79  
      * Flushes both streams.
 80  
      * @throws IOException if an I/O error occurs
 81  
      */
 82  
     @Override
 83  
     public void flush() throws IOException {
 84  2
         super.flush();
 85  2
         this.branch.flush();
 86  2
     }
 87  
 
 88  
     /**
 89  
      * Closes both output streams.
 90  
      * 
 91  
      * If closing the main output stream throws an exception, attempt to close the branch output stream.
 92  
      * 
 93  
      * If closing the main and branch output streams both throw exceptions, which exceptions is thrown by this method is
 94  
      * currently unspecified and subject to change.
 95  
      * 
 96  
      * @throws IOException
 97  
      *             if an I/O error occurs
 98  
      */
 99  
     @Override
 100  
     public void close() throws IOException {
 101  
         try {
 102  6
             super.close();
 103  
         } finally {
 104  6
             this.branch.close();
 105  2
         }
 106  2
     }
 107  
 
 108  
 }