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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  }