IndexFilespublic class IndexFiles extends Object | Index all text files under a directory. |
| Fields Summary |
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| static final File | INDEX_DIR |
| Constructors Summary |
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private IndexFiles()
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| Methods Summary |
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| static void | indexDocs(org.apache.lucene.index.IndexWriter writer, java.io.File file)
// do not try to index files that cannot be read
if (file.canRead()) {
if (file.isDirectory()) {
String[] files = file.list();
// an IO error could occur
if (files != null) {
for (int i = 0; i < files.length; i++) {
indexDocs(writer, new File(file, files[i]));
}
}
} else {
System.out.println("adding " + file);
try {
writer.addDocument(FileDocument.Document(file));
}
// at least on windows, some temporary files raise this exception with an "access denied" message
// checking if the file can be read doesn't help
catch (FileNotFoundException fnfe) {
;
}
}
}
| | public static void | main(java.lang.String[] args)Index all text files under a directory.
String usage = "java org.apache.lucene.demo.IndexFiles <root_directory>";
if (args.length == 0) {
System.err.println("Usage: " + usage);
System.exit(1);
}
if (INDEX_DIR.exists()) {
System.out.println("Cannot save index to '" +INDEX_DIR+ "' directory, please delete it first");
System.exit(1);
}
final File docDir = new File(args[0]);
if (!docDir.exists() || !docDir.canRead()) {
System.out.println("Document directory '" +docDir.getAbsolutePath()+ "' does not exist or is not readable, please check the path");
System.exit(1);
}
Date start = new Date();
try {
IndexWriter writer = new IndexWriter(INDEX_DIR, new StandardAnalyzer(), true);
System.out.println("Indexing to directory '" +INDEX_DIR+ "'...");
indexDocs(writer, docDir);
System.out.println("Optimizing...");
writer.optimize();
writer.close();
Date end = new Date();
System.out.println(end.getTime() - start.getTime() + " total milliseconds");
} catch (IOException e) {
System.out.println(" caught a " + e.getClass() +
"\n with message: " + e.getMessage());
}
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