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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 java.io.File;
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import java.io.IOException;
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import java.net.URL;
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import java.util.List;
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import javax.servlet.ServletConfig;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.commons.configuration.ConfigurationException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.dataone.configuration.Settings;
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import edu.ucsb.nceas.metacat.common.query.EnabledQueryEngines;
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/**
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* A servlet class for the Metadata Index module. This class only does one thing - initialize the ApplicationController class.
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* @author tao
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*
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*/
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public class MetacatIndexServlet extends HttpServlet {
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// Use the file prefix to indicate this is a absolute path.
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// see http://www.docjar.com/docs/api/org/springframework/context/support/FileSystemXmlApplicationContext.html
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private static final String FILEPREFIX = "file:";
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private static Log log = LogFactory.getLog(MetacatIndexServlet.class);
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/**
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* Initialize the servlet
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*/
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public void init(ServletConfig config) throws ServletException {
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//System.out.println("++++++++++++++++++++++++------------------- start the servlet");
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initializeSharedConfiguration(config);
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/*boolean isSolrEnabled = true;
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try {
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isSolrEnabled = EnabledQueryEngines.getInstance().isEnabled(EnabledQueryEngines.SOLRENGINE);
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} catch (Exception e) {
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throw new ServletException(e.getMessage());
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}
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//if the solr query engine is disabled, we stop here.
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if(!isSolrEnabled) {
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return;
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}*/
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// initialize the application using the configured application-context
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URL url = getClass().getResource("/index-processor-context.xml");
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//System.out.println("the url is "+url);
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//System.out.println("the path is "+url.getPath());
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//System.out.println("the file is "+url.getPath());
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ApplicationController controller = null;
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try {
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controller = new ApplicationController(FILEPREFIX + url.getFile());
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} catch (Exception e) {
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throw new ServletException(e.getMessage());
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}
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controller.startIndex();//Start to generate indexes for those haven't been indexed in another thread
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//List<SolrIndex> list = controller.getSolrIndexes();
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//System.out.println("++++++++++++++++++++++++------------------- the size is "+list.size());
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}
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/**
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* Loads the metacat.prioerties into D1 Settings utility
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* this gives us access to all metacat properties as well as
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* overriding any properties as needed.
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*
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* Makes sure shared Hazelcast configuration file location is set
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*
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* @param config the servlet config
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*/
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private void initializeSharedConfiguration(ServletConfig config) {
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try {
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// find the sibling metacat.properties file
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String metacatPropertiesFilePath = config.getServletContext().getInitParameter("metacat.properties.path");
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File contextDeploymentDir = new File(config.getServletContext().getRealPath("/"));
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String fullMetacatPropertiesFilePath = contextDeploymentDir.getParent() + metacatPropertiesFilePath;
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Settings.augmentConfiguration(fullMetacatPropertiesFilePath);
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} catch (ConfigurationException e) {
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log.error("Could not initialize shared Metacat properties. " + e.getMessage(), e);
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}
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// make sure hazelcast configuration is defined so that
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String hzConfigFileName = Settings.getConfiguration().getString("dataone.hazelcast.configFilePath");
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if (hzConfigFileName == null) {
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// use default metacat hazelcast.xml file in metacat deployment
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hzConfigFileName =
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Settings.getConfiguration().getString("application.deployDir") +
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"/" +
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Settings.getConfiguration().getString("application.context") +
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"/WEB-INF/hazelcast.xml";
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// set it for other parts of the code
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Settings.getConfiguration().setProperty("dataone.hazelcast.configFilePath", hzConfigFileName);
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//set data.hazelcast.location.clientconfig. This property will be used in d1_cn_index_processor module.
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//if we don't set this property, d1_cn_index_processor will use the default location /etc/dataone/storage.
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Settings.getConfiguration().setProperty("dataone.hazelcast.location.clientconfig", hzConfigFileName);
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}
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}
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/**
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*Actions needed to be done before close the servlet
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*/
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public void destroy() {
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//do nothing
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}
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/** Handle "GET" method requests from HTTP clients */
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public void doGet(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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//do nothing
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}
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/** Handle "POST" method requests from HTTP clients */
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public void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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//do nothing
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}
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}
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