| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.oodt.cas.filemgr.tools; |
| |
| //JDK imports |
| import java.io.IOException; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| //Lucene imports |
| import org.apache.lucene.analysis.standard.StandardAnalyzer; |
| import org.apache.lucene.index.IndexWriter; |
| |
| /** |
| * @author mattmann |
| * @version $Revision$ |
| * |
| * <p> |
| * A Tool to optimize a {@link LuceneCatalog}'s index directory for search. |
| * </p> |
| * |
| */ |
| public class OptimizeLuceneCatalog { |
| |
| /* the path to the lucene index directory */ |
| private String catalogPath = null; |
| |
| /* the merge factor to use when optimizing the index */ |
| private int mergeFactor = 20; |
| |
| /* our log stream */ |
| private static final Logger LOG = Logger.getLogger(OptimizeLuceneCatalog.class |
| .getName()); |
| |
| /** |
| * Default constructor. |
| */ |
| public OptimizeLuceneCatalog(String catPath, int mf) { |
| this.catalogPath = catPath; |
| this.mergeFactor = mf; |
| } |
| |
| public void doOptimize() throws Exception { |
| IndexWriter writer = null; |
| boolean createIndex = false; |
| |
| try { |
| writer = new IndexWriter(catalogPath, new StandardAnalyzer(), |
| createIndex); |
| writer.setMergeFactor(this.mergeFactor); |
| long timeBefore = System.currentTimeMillis(); |
| writer.optimize(); |
| long timeAfter = System.currentTimeMillis(); |
| double numSeconds = ((timeAfter - timeBefore) * 1.0) / 1000.0; |
| LOG.log(Level.INFO, "LuceneCatalog: [" + this.catalogPath |
| + "] optimized: took: [" + numSeconds + "] seconds"); |
| } catch (IOException e) { |
| LOG.log(Level.WARNING, "Unable to optimize lucene index: [" |
| + catalogPath + "]: Message: " + e.getMessage()); |
| } finally { |
| try { |
| writer.close(); |
| } catch (Exception ignore) { |
| } |
| writer = null; |
| } |
| } |
| |
| /** |
| * @param args |
| */ |
| public static void main(String[] args) throws Exception { |
| String usage = "OptimizeLuceneCatalog [options]\n" |
| + "--catalogPath <path to lucene catalog>\n" |
| + "[--mergeFactor <merge factor for index>]\n"; |
| |
| String catPath = null; |
| int mergeFactor = -1; |
| |
| for (int i = 0; i < args.length; i++) { |
| if (args[i].equals("--catalogPath")) { |
| catPath = args[++i]; |
| } else if (args[i].equals("--mergeFactor")) { |
| mergeFactor = Integer.parseInt(args[++i]); |
| } |
| } |
| |
| if (catPath == null) { |
| System.err.println(usage); |
| System.exit(1); |
| } |
| |
| if (mergeFactor == -1) { |
| mergeFactor = 20; // default |
| } |
| |
| OptimizeLuceneCatalog optimizer = new OptimizeLuceneCatalog(catPath, |
| mergeFactor); |
| optimizer.doOptimize(); |
| |
| } |
| |
| } |