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1   package org.apache.maven.plugin.dependency.treeSerializers ;
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 java.io.PrintWriter;
23  import java.io.Writer;
24  
25  /**
26   * Abstract class for visitors performing serialization.
27   *
28   * @author <a href="mailto:jerome.creignou@gmail.com">Jerome Creignou</a>
29   */
30  public abstract class AbstractSerializingVisitor
31  {
32  
33      /**
34       * The writer to serialize to.
35       */
36      protected final PrintWriter writer;
37  
38      /**
39       * Constructor.
40       * <p>
41       * Build a new AbstractSerializingDependencyNodeVisitor with the writer to serialize to.
42       * </p>
43       *
44       * @param writer the writer to serialize to.
45       */
46      public AbstractSerializingVisitor( Writer writer )
47      {
48          if ( writer instanceof PrintWriter )
49          {
50              this.writer = (PrintWriter) writer;
51          }
52          else
53          {
54              this.writer = new PrintWriter( writer, true );
55          }
56      }
57  }