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1   /*
2    * $Id: IndentWriter.java 471756 2006-11-06 15:01:43Z husted $
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  package org.apache.struts2.sitegraph.model;
22  
23  import java.io.IOException;
24  import java.io.Writer;
25  
26  /***
27   */
28  public class IndentWriter extends Writer {
29      Writer writer;
30  
31      public IndentWriter(Writer writer) {
32          this.writer = writer;
33      }
34  
35      public void close() throws IOException {
36          writer.close();
37      }
38  
39      public void flush() throws IOException {
40          writer.flush();
41      }
42  
43      public void write(String str) throws IOException {
44          write(str, false);
45      }
46  
47      public void write(String str, boolean noIndent) throws IOException {
48          if (!noIndent) {
49              str = "    " + str;
50          }
51  
52          if (writer instanceof IndentWriter) {
53              ((IndentWriter) writer).write(str, false);
54          } else {
55              writer.write(str + "\n");
56          }
57      }
58  
59      public void write(char cbuf[], int off, int len) throws IOException {
60          writer.write(cbuf, off, len);
61      }
62  }