TextExtractor


1   package org.jahia.utils.fileparsers;
2   
3   import java.io.IOException  ;
4   import java.io.InputStream  ;
5   import java.io.InputStreamReader  ;
6   import org.jahia.utils.FileUtils;
7   
8   
9   /**
10   * <p>Title: HDF Text content extractor file</p>
11   * <p>Description: This classes uses Jakarta's POI library to extract content
12   * from HDF formatted files. Some of the code in this class is not used
13   * currently but might be needed to process other types of files based on
14   * the POI File system.</p>
15   * <p>Copyright: Copyright (c) 2003</p>
16   * <p>Company: Jahia Ltd</p>
17   * @author Serge Huber
18   * @version 1.0
19   */
20  
21  public class TextExtractor implements FileExtractor {
22  
23      public TextExtractor(){
24      }
25  
26      /**
27       * This method returns all the text of an HDF file.
28       *
29       * @param path String
30       * @param lastModified long
31       * @param fileStream InputStream
32       * @throws IOException thrown if there was an error while parsing the
33       * file format, notably if the file is an RTF file instead of a HDF file.
34       * @return String
35       */
36      public String   getContentAsString(String   path, long lastModified,
37                                       InputStream   fileStream)
38      throws IOException   {
39          return getContentAsString(path, lastModified, fileStream, null);
40      }
41  
42      /**
43       * This method returns all the text of an HDF file.
44       *
45       * @param path String
46       * @param lastModified long
47       * @param fileStream InputStream
48       * @param charSet String
49       * @throws IOException thrown if there was an error while parsing the
50       * file format, notably if the file is an RTF file instead of a HDF file.
51       * @return String
52       */
53      public String   getContentAsString(String   path, long lastModified,
54                                       InputStream   fileStream, String   charSet)
55      throws IOException   {
56          InputStreamReader   reader = null;
57          if ( charSet != null ){
58              reader = new InputStreamReader  (fileStream, charSet);
59          } else {
60              reader = new InputStreamReader  (fileStream);
61          }
62          return FileUtils.readerToString(reader);
63      }
64  }
65
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