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1   package org.apache.maven.shared.release.exec;
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 org.codehaus.plexus.util.cli.StreamConsumer;
23  
24  import java.io.PrintStream;
25  
26  /**
27   * Consumer that both funnels to System.out/err, and stores in an internal buffer.
28   *
29   * @author <a href="mailto:brett@apache.org">Brett Porter</a>
30   */
31  public class TeeConsumer
32      implements StreamConsumer
33  {
34      private PrintStream stream;
35  
36      /**
37       * @noinspection StringBufferField
38       */
39      private StringBuffer content = new StringBuffer();
40  
41      private static final String LS = System.getProperty( "line.separator" );
42  
43      private String indent;
44  
45      public TeeConsumer( PrintStream stream )
46      {
47          this( stream, "    " );
48      }
49  
50      public TeeConsumer( PrintStream stream, String indent )
51      {
52          this.stream = stream;
53  
54          this.indent = indent;
55      }
56  
57      public void consumeLine( String line )
58      {
59          stream.println( indent + line );
60  
61          content.append( line );
62          content.append( LS );
63      }
64  
65      public String getContent()
66      {
67          return content.toString();
68      }
69  
70      public String toString()
71      {
72          return getContent();
73      }
74  }