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POperiodically flushing new documents to an index using lucene
 

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  1. POperiodically flushing new documents to an index using lucene
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    <p>I need to flush the index periodically.that's mean that the index will be regularly updated as the document being added.what do you reckon is the solution for this? I need a sample source code to be able to flush an index.</p> <p>ok just like this source code below.</p> <pre><code>public class SimpleFileIndexer { public static void main(String[] args) throws Exception { File indexDir = new File("C:/Users/Raden/Documents/lucene/LuceneHibernate/adi"); File dataDir = new File("C:/Users/Raden/Documents/lucene/LuceneHibernate/adi"); String suffix = "txt"; SimpleFileIndexer indexer = new SimpleFileIndexer(); int numIndex = indexer.index(indexDir, dataDir, suffix); System.out.println("Total files indexed " + numIndex); } private int index(File indexDir, File dataDir, String suffix) throws Exception { IndexWriter indexWriter = new IndexWriter( FSDirectory.open(indexDir), new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED); indexWriter.setUseCompoundFile(false); indexDirectory(indexWriter, dataDir, suffix); int numIndexed = indexWriter.maxDoc(); indexWriter.optimize(); indexWriter.close(); return numIndexed; } private void indexDirectory(IndexWriter indexWriter, File dataDir, String suffix) throws IOException { File[] files = dataDir.listFiles(); for (int i = 0; i &lt; files.length; i++) { File f = files[i]; if (f.isDirectory()) { indexDirectory(indexWriter, f, suffix); } else { indexFileWithIndexWriter(indexWriter, f, suffix); } } } private void indexFileWithIndexWriter(IndexWriter indexWriter, File f, String suffix) throws IOException { if (f.isHidden() || f.isDirectory() || !f.canRead() || !f.exists()) { return; } if (suffix!=null &amp;&amp; !f.getName().endsWith(suffix)) { return; } System.out.println("Indexing file " + f.getCanonicalPath()); Document doc = new Document(); doc.add(new Field("contents", new FileReader(f))); doc.add(new Field("filename", f.getCanonicalPath(), Field.Store.YES, Field.Index.ANALYZED)); indexWriter.addDocument(doc); } } </code></pre> <p>the above source code can index documents when given the directory of text files. now what I am asking is how can I made the code to run continuously? what class should I use? so that everytime there is new documents added to that directory then lucene will index those documents automatically, can you help me out on this one. I really need to know what is the best solution.</p>
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    1. USJleruOHeP
    1. USjacobian
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    1. COI don't see where 'flushing' comes into it.
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      1. USuser207421
    2. COJust remove all the code you've posted here, and replace it with "Can I watch a directory and periodically index it with Lucene, without re-indexing everything?".
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      1. USMatthijs Bierman
 

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