| /** |
| * 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.cocoon.components.search.components.impl; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.avalon.framework.configuration.Configurable; |
| import org.apache.avalon.framework.configuration.Configuration; |
| import org.apache.avalon.framework.configuration.ConfigurationException; |
| import org.apache.avalon.framework.logger.AbstractLogEnabled; |
| import org.apache.avalon.framework.logger.LogEnabled; |
| import org.apache.avalon.framework.service.ServiceException; |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.avalon.framework.service.Serviceable; |
| import org.apache.avalon.framework.thread.ThreadSafe; |
| import org.apache.cocoon.components.search.analyzer.ConfigurableAnalyzer; |
| import org.apache.cocoon.components.search.components.AnalyzerManager; |
| import org.apache.excalibur.source.Source; |
| import org.apache.excalibur.source.SourceResolver; |
| import org.apache.lucene.analysis.Analyzer; |
| |
| /** |
| * Implementation of the Analyzer Component |
| * |
| * @author Maisonneuve Nicolas |
| * @version 1.0 |
| */ |
| public class AnalyzerManagerImpl extends AbstractLogEnabled implements |
| AnalyzerManager, Serviceable, Configurable, ThreadSafe { |
| |
| /** |
| * The analyzer element |
| */ |
| public static final String ANALYZER_ELEMENT = "analyzer"; |
| |
| /** |
| * the id of the analyzer |
| */ |
| public static final String ID_ATT = "id"; |
| |
| /** |
| * the analyzer class name |
| */ |
| public static final String CLASSNAME_ATT = "class"; |
| |
| /** |
| * (optional) a file to configure the analyzer |
| */ |
| public static final String CONFIG_ATT = "configfile"; |
| |
| /** |
| * Automatic update or not the analyzer when the config file changes |
| */ |
| public static final String CONFIGCHECK_ATT = "checkupdate"; |
| |
| /** |
| * Map of all the analyzer (ID, analyzer class) |
| */ |
| private Map analyzers = new HashMap(); |
| |
| private ServiceManager manager; |
| |
| public boolean exist(String id) { |
| return this.analyzers.containsKey(id); |
| } |
| |
| public void configure(Configuration configuration) |
| throws ConfigurationException { |
| Analyzer analyzer; |
| String key; |
| Source conffile = null; |
| boolean checkconfigfile = false; |
| SourceResolver resolver; |
| |
| Configuration[] confAnalyzer = configuration |
| .getChildren(ANALYZER_ELEMENT); |
| if (confAnalyzer.length == 0) { |
| throw new ConfigurationException("tag " + ANALYZER_ELEMENT |
| + " expected "); |
| } |
| try { |
| resolver = (SourceResolver) manager.lookup(SourceResolver.ROLE); |
| } catch (ServiceException e) { |
| throw new ConfigurationException(" source resolver error", e); |
| } |
| |
| for (int i = 0; i < confAnalyzer.length; i++) { |
| |
| // KEY |
| key = confAnalyzer[i].getAttribute(ID_ATT); |
| if (key == null) { |
| throw new ConfigurationException("element " + ANALYZER_ELEMENT |
| + " must have a " + ID_ATT + " attribute"); |
| } |
| |
| // CLASS |
| String classname = confAnalyzer[i].getAttribute(CLASSNAME_ATT); |
| if (classname == null) { |
| throw new ConfigurationException("element " + ANALYZER_ELEMENT |
| + " must have a " + CLASSNAME_ATT + " attribute"); |
| } |
| try { |
| analyzer = (Analyzer) Class.forName(classname).newInstance(); |
| } catch (ClassNotFoundException ex) { |
| throw new ConfigurationException("analyzer class not found " |
| + classname, ex); |
| } catch (Exception ex) { |
| throw new ConfigurationException("instanciation of " + key |
| + " error", ex); |
| } |
| |
| if (analyzer instanceof LogEnabled) { |
| this.setupLogger(analyzer); |
| } |
| |
| if (analyzer instanceof ConfigurableAnalyzer) { |
| ConfigurableAnalyzer confanalyzer = ((ConfigurableAnalyzer) analyzer); |
| |
| // CONFIGFILE |
| String conffilename = confAnalyzer[i].getAttribute(CONFIG_ATT); |
| |
| if (conffilename == null || conffilename.equals("")) { |
| throw new ConfigurationException("the analyzer " + key |
| + " must have a " + CONFIG_ATT + " attribute"); |
| } |
| |
| try { |
| conffile = resolver.resolveURI(conffilename); |
| } catch (Exception ex1) { |
| throw new ConfigurationException( |
| "Config file source error", ex1); |
| } |
| |
| // CHECKUPDATE |
| checkconfigfile = confAnalyzer[i].getAttributeAsBoolean( |
| CONFIGCHECK_ATT, false); |
| |
| confanalyzer.setAnalyerManager(this); |
| confanalyzer.setConfigFile(conffile); |
| confanalyzer.setEnableCheckFile(checkconfigfile); |
| } |
| this.put(key, analyzer); |
| } |
| |
| manager.release(resolver); |
| getLogger().info("AnalyzerManager configured."); |
| |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.cocoon.components.search.components.AnalyzerManager#put(java.lang.String, |
| * org.apache.lucene.analysis.Analyzer) |
| */ |
| public void put(String id, Analyzer analyzer) { |
| this.analyzers.put(id, analyzer); |
| this.getLogger().info( |
| "add analyzer id: " + id + " with class " |
| + analyzer.getClass().getName()); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.cocoon.components.search.components.AnalyzerManager#remove(java.lang.String) |
| */ |
| public void remove(String id) { |
| this.analyzers.remove(id); |
| if (this.getLogger().isDebugEnabled()) { |
| this.getLogger().debug("remove analyzer id: " + id); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.cocoon.components.search.components.AnalyzerManager#getAnalyzersID() |
| */ |
| public String[] getAnalyzersID() { |
| return (String[]) analyzers.keySet().toArray( |
| new String[analyzers.size()]); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.cocoon.components.search.components.AnalyzerManager#getAnalyzer(java.lang.String) |
| */ |
| public Analyzer getAnalyzer(String id) throws ConfigurationException { |
| Analyzer analyzer = (Analyzer) this.analyzers.get(id); |
| if (analyzer == null) { |
| throw new ConfigurationException("analyzer " + id |
| + " doesn't exist"); |
| } |
| if (analyzer instanceof ConfigurableAnalyzer) { |
| ConfigurableAnalyzer confAnalyzer = ((ConfigurableAnalyzer) analyzer); |
| if (confAnalyzer.enableCheckFile()) { |
| confAnalyzer.reconfigure(); |
| } |
| } |
| return analyzer; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager) |
| */ |
| public void service(ServiceManager manager) throws ServiceException { |
| this.manager = manager; |
| } |
| |
| } |