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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.FileNotFoundException;
23  import java.io.UnsupportedEncodingException;
24  
25  /**
26   * Wrapper for an input file.
27   *
28   * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a>
29   */
30  public class InputFileWrapper
31      extends AbstractFileWrapper
32  {
33      /** serialVersionUID */
34      static final long serialVersionUID = 6510443036267371188L;
35  
36      /**
37       * Private constructor.
38       *
39       * @param absolutePath not null
40       * @param format could be null
41       * @param charsetName could be null
42       * @param supportedFormat not null
43       * @throws UnsupportedEncodingException if the encoding is unsupported.
44       * @throws FileNotFoundException if the file for absolutePath is not found.
45       */
46      private InputFileWrapper( String absolutePath, String format, String charsetName, String[] supportedFormat )
47          throws UnsupportedEncodingException, FileNotFoundException
48      {
49          super( absolutePath, format, charsetName, supportedFormat );
50  
51          if ( !getFile().exists() )
52          {
53              throw new FileNotFoundException( "The file '" + getFile().getAbsolutePath() + "' doesn't exist." );
54          }
55      }
56  
57      /**
58       * @param absolutePath for a file or a directory not null.
59       * @param format could be null
60       * @param supportedFormat not null
61       * @return a type safe input reader
62       * @throws UnsupportedEncodingException if the encoding is unsupported.
63       * @throws FileNotFoundException if the file for absolutePath is not found.
64       * @see #valueOf(String, String, String, String[]) using AUTO_FORMAT
65       */
66      public static InputFileWrapper valueOf( String absolutePath, String format, String[] supportedFormat )
67          throws UnsupportedEncodingException, FileNotFoundException
68      {
69          return valueOf( absolutePath, format, AUTO_FORMAT, supportedFormat );
70      }
71  
72      /**
73       * @param absolutePath for a wanted file or a wanted directory, not null.
74       * @param format could be null
75       * @param charsetName could be null
76       * @param supportedFormat not null
77       * @return a type safe input reader
78       * @throws UnsupportedEncodingException if the encoding is unsupported.
79       * @throws FileNotFoundException if the file for absolutePath is not found.
80       */
81      public static InputFileWrapper valueOf( String absolutePath, String format, String charsetName,
82                                              String[] supportedFormat )
83          throws UnsupportedEncodingException, FileNotFoundException
84      {
85          return new InputFileWrapper( absolutePath, format, charsetName, supportedFormat );
86      }
87  }