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1   /*
2    * $Id: IndentWriter.java 651946 2008-04-27 13:41:38Z apetrelli $
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  package org.apache.struts2.sitegraph.model;
23  
24  import java.io.IOException;
25  import java.io.Writer;
26  
27  /***
28   */
29  public class IndentWriter extends Writer {
30      Writer writer;
31  
32      public IndentWriter(Writer writer) {
33          this.writer = writer;
34      }
35  
36      public void close() throws IOException {
37          writer.close();
38      }
39  
40      public void flush() throws IOException {
41          writer.flush();
42      }
43  
44      public void write(String str) throws IOException {
45          write(str, false);
46      }
47  
48      public void write(String str, boolean noIndent) throws IOException {
49          if (!noIndent) {
50              str = "    " + str;
51          }
52  
53          if (writer instanceof IndentWriter) {
54              ((IndentWriter) writer).write(str, false);
55          } else {
56              writer.write(str + "\n");
57          }
58      }
59  
60      public void write(char cbuf[], int off, int len) throws IOException {
61          writer.write(cbuf, off, len);
62      }
63  }