Java Code Examples for org.apache.lucene.util.Version#LUCENE_40

public Indexer(FullTextIndexShared index, Analyzer analyzer) throws IOException {
    IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_40, analyzer);
    iwc.setMaxBufferedDeleteTerms(1); // The deletion needs to be reflected immediately (on disk)
    this.index = index;
    this.writer = new IndexWriter(index.open(),  iwc);

}
 

/**
 * Search Lucene
 *
 * @param queryStr
 * @param defaultField
 * @return
 * @throws ParseException
 */
protected Set<Resource> searchResources(String queryStr, String defaultField)
throws ParseException
{
	Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_40);
	QueryParser parser = new QueryParser(Version.LUCENE_40, defaultField, analyzer);
	Query query = parser.parse(queryStr);
	return searchResources(query);
}
 

/**
 * Search Lucene
 *
 * @param queryStr
 * @param defaultField
 * @return
 * @throws ParseException
 */
protected Set<Resource> searchResources(String queryStr, String defaultField)
throws ParseException
{
	Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_40);
	QueryParser parser = new QueryParser(Version.LUCENE_40, defaultField, analyzer);
	Query query = parser.parse(queryStr);
	return searchResources(query);
}
 

/** Index all text files under a directory. */
  @SuppressWarnings("deprecation")
public static void main(String[] args) {
    String usage = "java org.apache.lucene.demo.IndexFiles"
                 + " [-index INDEX_PATH] [-docs DOCS_PATH] [-update]\n\n"
                 + "This indexes the documents in DOCS_PATH, creating a Lucene index"
                 + "in INDEX_PATH that can be searched with SearchFiles";
    String indexPath = "index";
    String docsPath = null;
    boolean create = true;
    for(int i=0;i<args.length;i++) {
      if ("-index".equals(args[i])) {
        indexPath = args[i+1];
        i++;
      } else if ("-docs".equals(args[i])) {
        docsPath = args[i+1];
        i++;
      } else if ("-update".equals(args[i])) {
        create = false;
      }
    }

    if (docsPath == null) {
      System.err.println("Usage: " + usage);
      System.exit(1);
    }

    final File docDir = new File(docsPath);
    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 {
      System.out.println("Indexing to directory '" + indexPath + "'...");

      Directory dir = FSDirectory.open(new File(indexPath));
      Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_40);
      IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_40, analyzer);

      if (create) {
        // Create a new index in the directory, removing any
        // previously indexed documents:
        iwc.setOpenMode(OpenMode.CREATE);
      } else {
        // Add new documents to an existing index:
        iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
      }

      // Optional: for better indexing performance, if you
      // are indexing many documents, increase the RAM
      // buffer.  But if you do this, increase the max heap
      // size to the JVM (eg add -Xmx512m or -Xmx1g):
      //
      // iwc.setRAMBufferSizeMB(256.0);

      IndexWriter writer = new IndexWriter(dir, iwc);
      indexDocs(writer, docDir);

      // NOTE: if you want to maximize search performance,
      // you can optionally call forceMerge here.  This can be
      // a terribly costly operation, so generally it's only
      // worth it when your index is relatively static (ie
      // you're done adding documents to it):
      //
      // writer.forceMerge(1);

      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());
    }
  }
 

public static void main(String[] args) throws ParseException, IOException {

    QueryParser parser = new QueryParser(Version.LUCENE_40, "", new StandardAnalyzer(Version.LUCENE_40));

    Query query = parser.parse("a:v1 b:v2 c:v3~ c:asda*asda");
    
    SuperQuery superQuery = new SuperQuery(query,ScoreType.SUPER,new Term("_primedoc_"));

    QueryWritable queryWritable = new QueryWritable(superQuery);
    DataOutputBuffer buffer = new DataOutputBuffer();
    queryWritable.write(buffer);
    buffer.close();

    System.out.println(new String(buffer.getData(), 0, buffer.getLength()));

    QueryWritable qw = new QueryWritable();

    DataInputBuffer in = new DataInputBuffer();
    in.reset(buffer.getData(), 0, buffer.getLength());
    qw.readFields(in);

    System.out.println("------------");
    
    System.out.println(qw.getQuery());
    
    System.out.println("------------");

    while (true) {
      run(superQuery);
    }
  }