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1   /*--------------------------------------------------------------------------
2    *  Copyright 2010 utgenome.org
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   *--------------------------------------------------------------------------*/
16  //--------------------------------------
17  // utgb-core Project
18  //
19  // StandardInputStream.java
20  // Since: Aug 30, 2010
21  //
22  //--------------------------------------
23  package org.utgenome.util;
24  
25  import java.io.IOException;
26  import java.io.InputStream;
27  
28  /**
29   * An wrapper of System.in used for avoiding accidentally closing System.in, which should not be closed by the user.
30   * 
31   * @author leo
32   * 
33   */
34  public class StandardInputStream extends InputStream {
35  
36  	@Override
37  	public int read() throws IOException {
38  		return System.in.read();
39  	}
40  
41  	@Override
42  	public int read(byte[] b) throws IOException {
43  		return System.in.read(b);
44  	}
45  
46  	@Override
47  	public int read(byte[] b, int off, int len) throws IOException {
48  		return System.in.read(b, off, len);
49  	}
50  
51  	@Override
52  	public void close() throws IOException {
53  		// do nothing
54  	}
55  
56  }