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/**
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* '$RCSfile$'
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* Purpose: A class that gets Accession Number, check for uniqueness
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* and register it into db
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Jivka Bojilova, Matt Jones
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*
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* '$Author: leinfelder $'
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* '$Date: 2011-11-02 20:40:12 -0700 (Wed, 02 Nov 2011) $'
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* '$Revision: 6595 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.index;
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import edu.ucsb.nceas.metacat.common.SolrServerFactory;
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import java.util.ArrayList;
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import java.util.List;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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leinfelder
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import org.apache.solr.client.solrj.SolrServer;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.support.FileSystemXmlApplicationContext;
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/**
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* The start class of the index.
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* @author tao
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*
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*/
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public class ApplicationController {
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private static String SOLRINDEXES = "solrIndexes";
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private static short FIRST = 0;
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leinfelder
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private List<SolrIndex> solrIndexes = null;
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//private List<SystemMetadataEventListener> sysmetaListeners = new ArrayList<SystemMetadataEventListener>();
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private static ApplicationContext context = null;
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private String springConfigFile = "src/main/resources/index-processor-context.xml";
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Log log = LogFactory.getLog(ApplicationController.class);
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/**
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* Constructor
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*/
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public ApplicationController () throws Exception {
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init();
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}
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/**
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* Set the Spring configuration file.
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* @param springConfigFile the path of the Spring configuration file
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*/
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public ApplicationController(String springConfigFile) throws Exception {
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this.springConfigFile = springConfigFile;
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init();
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}
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leinfelder
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/**
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* Initialize the list of the SolrIndex objects from the configuration file.
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* Set the SolrServer implementation using the factory.
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* Start listening for events on Hazelcast
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*/
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private void init() throws Exception {
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context = getContext();
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solrIndexes = (List<SolrIndex>) context.getBean(SOLRINDEXES);
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// use factory to create the correct impl
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SolrServer solrServer = null;
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try {
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solrServer = SolrServerFactory.createSolrServer();
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} catch (Exception e) {
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log.error("Could not create SolrServer form factory", e);
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throw e;
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}
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// start the SystemMetadata listener[s] (only expect there to be one)
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for (SolrIndex solrIndex: solrIndexes) {
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// set the solr server to use
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solrIndex.setSolrServer(solrServer);
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// start listening for events
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SystemMetadataEventListener smel = new SystemMetadataEventListener();
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smel.setSolrIndex(solrIndex);
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smel.start();
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//sysmetaListeners.add(smel);
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}
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}
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/**
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* Get the ApplicaionContext of Spring.
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*/
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private ApplicationContext getContext() {
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if (context == null) {
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context = new FileSystemXmlApplicationContext(springConfigFile);
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}
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return context;
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}
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/**
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* Get the path of the Spring configuration file.
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* @return the path of the Spring configuration file.
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*/
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public String getSpringConfigFile() {
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return this.springConfigFile;
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}
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/**
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* Get the list of the solr index.
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* @return the list of the solr index.
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*/
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public List<SolrIndex> getSolrIndexes() {
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return this.solrIndexes;
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}
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/**
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* Start to generate indexes for those haven't been indexed in another thread.
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*/
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public void startIndex() {
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SolrIndex index = solrIndexes.get(FIRST);
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//SystemMetadataEventListener listener = sysmetaListeners.get(FIRST);
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IndexGenerator generator = new IndexGenerator(index);
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Thread indexThread = new Thread(generator);
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indexThread.start();
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}
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}
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