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1   package org.apache.maven.doxia.wrapper;
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.UnsupportedEncodingException;
23  
24  import org.codehaus.plexus.util.WriterFactory;
25  
26  import static org.codehaus.plexus.util.StringUtils.isEmpty;
27  
28  /**
29   * Wrapper for an output file.
30   *
31   * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a>
32   */
33  public class OutputFileWrapper
34      extends AbstractFileWrapper
35  {
36      /** serialVersionUID */
37      static final long serialVersionUID = 804499615902780116L;
38  
39      /**
40       * Private constructor.
41       *
42       * @param absolutePath not null
43       * @param format not null
44       * @param charsetName could be null
45       * @param supportedFormat not null.
46       * @throws IllegalArgumentException if any.
47       * @throws UnsupportedEncodingException if the encoding is unsupported.
48       */
49      private OutputFileWrapper( String absolutePath, String format, String charsetName, String[] supportedFormat )
50          throws UnsupportedEncodingException
51      {
52          super( absolutePath, format, charsetName, supportedFormat );
53  
54          if ( getFormat().equalsIgnoreCase( AUTO_FORMAT ) )
55          {
56              throw new IllegalArgumentException( "output format could not be " + AUTO_FORMAT );
57          }
58      }
59  
60      /**
61       * @param absolutePath not null
62       * @param format not null
63       * @param supportedFormat not null
64       * @return a type safe output writer
65       * @throws UnsupportedEncodingException if the encoding is unsupported.
66       */
67      public static OutputFileWrapper valueOf( String absolutePath, String format, String[] supportedFormat )
68          throws UnsupportedEncodingException
69      {
70          return valueOf( absolutePath, format, WriterFactory.UTF_8, supportedFormat );
71      }
72  
73      /**
74       * @param absolutePath not null
75       * @param format not null
76       * @param charsetName could be null
77       * @param supportedFormat not null
78       * @return a type safe output writer
79       * @throws UnsupportedEncodingException if the encoding is unsupported.
80       */
81      public static OutputFileWrapper valueOf( String absolutePath, String format, String charsetName,
82                                               String[] supportedFormat )
83          throws UnsupportedEncodingException
84      {
85          if ( isEmpty( format ) )
86          {
87              throw new IllegalArgumentException( "output format is required" );
88          }
89          return new OutputFileWrapper( absolutePath, format, charsetName, supportedFormat );
90      }
91  }