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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.InputStream;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import java.util.Vector;
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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.apache.solr.client.solrj.SolrServerException;
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import org.dataone.client.MNode;
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import org.dataone.configuration.Settings;
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import org.dataone.service.exceptions.InvalidRequest;
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import org.dataone.service.exceptions.InvalidToken;
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import org.dataone.service.exceptions.NotAuthorized;
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import org.dataone.service.exceptions.NotImplemented;
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import org.dataone.service.exceptions.ServiceFailure;
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import org.dataone.service.types.v1.Identifier;
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import org.dataone.service.types.v1.ObjectInfo;
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import org.dataone.service.types.v1.ObjectList;
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import org.dataone.service.types.v1.SystemMetadata;
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/**
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* A class represents the object to generate massive solr indexes.
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* This can happen during an update of Metacat (generating index for all existing documents)
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* or regenerate index for those documents
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* failing to build index during the insert or update.
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*
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* @author tao
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*
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*/
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public class IndexGenerator implements Runnable {
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private static final int WAITTIME = 10000;
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private static final int MAXWAITNUMBER = 180;
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private static final String HTTP = "http://";
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private static final String MNAPPENDIX = "/d1/mn";
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private SolrIndex solrIndex = null;
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private SystemMetadataEventListener systemMetadataListener = null;
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private Log log = LogFactory.getLog(IndexGenerator.class);
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private MNode mNode = null;
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/**
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* Constructor
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* @param solrIndex
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* @param systemMetadataListener
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*/
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public IndexGenerator(SolrIndex solrIndex, SystemMetadataEventListener systemMetadataListener) {
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this.solrIndex = solrIndex;
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this.systemMetadataListener = systemMetadataListener;
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this.mNode = new MNode(buildMNBaseURL());
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}
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/**
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* Build the index for all documents in Metacat without overwriting.
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* @throws SolrServerException
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* @throws ServiceFailure
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* @throws NotImplemented
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* @throws NotAuthorized
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* @throws InvalidToken
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* @throws InvalidRequest
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*/
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public void indexAll() throws InvalidRequest, InvalidToken, NotAuthorized,
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NotImplemented, ServiceFailure, SolrServerException {
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boolean force = false;
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indexAll(force);
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}
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/**
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* Build the index for all documents. If force is true, the existed index for documents
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* will be overwritten.
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* @param force
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* @throws SolrServerException
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* @throws ServiceFailure
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* @throws NotImplemented
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* @throws NotAuthorized
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* @throws InvalidToken
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* @throws InvalidRequest
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*/
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public void indexAll(boolean force) throws InvalidRequest, InvalidToken,
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NotAuthorized, NotImplemented, ServiceFailure, SolrServerException {
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Date since = null;
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Date until = null;
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index(since, until, force);
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}
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/**
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* Build the index for the docs which have been modified since the specified date.
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* @param since
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* @param force
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* @throws SolrServerException
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* @throws ServiceFailure
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* @throws NotImplemented
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* @throws NotAuthorized
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* @throws InvalidToken
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* @throws InvalidRequest
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*/
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public void index(Date since, boolean force) throws InvalidRequest, InvalidToken,
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NotAuthorized, NotImplemented, ServiceFailure, SolrServerException {
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Date until = null;
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index(since, until, force);
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}
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/**
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* Build the index for the docs which have been modified between the specified date.s
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* @param since
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* @param until
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* @param force
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* @throws SolrServerException
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* @throws ServiceFailure
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* @throws NotImplemented
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* @throws NotAuthorized
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* @throws InvalidToken
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* @throws InvalidRequest
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*/
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public void index(Date since, Date until, boolean force) throws SolrServerException, InvalidRequest,
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InvalidToken, NotAuthorized, NotImplemented, ServiceFailure {
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List<String> solrIds = null;
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List<String> metacatIds = null;
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if(!force) {
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solrIds = getSolrDocIds();
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}
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log.info("the solr ids -----------------------------"+solrIds);
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metacatIds = getMetadataIds(since, until);
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log.info("the metacat ids -----------------------------"+metacatIds);
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if(metacatIds != null) {
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for(String metacatId : metacatIds) {
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if(metacatId != null) {
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boolean buildIndex = true;
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if(!force && solrIds != null && solrIds.contains(metacatId)) {
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//solr already indexs the id and we don't force it to rebuild it, so set the buildIndex to be false
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buildIndex = false;
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}
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if(buildIndex) {
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try {
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generateIndex(metacatId);
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} catch (Exception e) {
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log.error("IndexGenerator.index - Metacat Index couldn't generate the index for the id - "+metacatId+" because "+e.getMessage());
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}
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}
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}
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}
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}
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}
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public void run() {
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try {
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indexAll();
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} catch (InvalidRequest e) {
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// TODO Auto-generated catch block
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//e.printStackTrace();
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log.error("IndexGenerator.run - Metadata-Index couldn't generate indexes for those documents which haven't been indexed : "+e.getMessage());
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} catch (InvalidToken e) {
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// TODO Auto-generated catch block
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//e.printStackTrace();
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log.error("IndexGenerator.run - Metadata-Index couldn't generate indexes for those documents which haven't been indexed : "+e.getMessage());
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} catch (NotAuthorized e) {
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// TODO Auto-generated catch block
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//e.printStackTrace();
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} catch (NotImplemented e) {
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// TODO Auto-generated catch block
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//e.printStackTrace();
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log.error("IndexGenerator.run - Metadata-Index couldn't generate indexes for those documents which haven't been indexed : "+e.getMessage());
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} catch (ServiceFailure e) {
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// TODO Auto-generated catch block
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//e.printStackTrace();
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log.error("IndexGenerator.run - Metadata-Index couldn't generate indexes for those documents which haven't been indexed : "+e.getMessage());
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} catch (SolrServerException e) {
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// TODO Auto-generated catch block
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//e.printStackTrace();
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log.error("IndexGenerator.run - Metadata-Index couldn't generate indexes for those documents which haven't been indexed : "+e.getMessage());
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}
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}
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/*
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* Get the indexed ids list from the solr server.
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* An empty list will be returned if there is no ids.
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*/
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private List<String> getSolrDocIds() throws SolrServerException {
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List<String> ids = solrIndex.getSolrIds();
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return ids;
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}
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/*
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* Get the ids of the metacat. If since and util are null, it will return all of them
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*/
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private List<String> getMetadataIds(Date since, Date until) throws InvalidRequest,
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InvalidToken, NotAuthorized, NotImplemented, ServiceFailure {
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List<String> ids = new ArrayList();
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ObjectList objects = null;
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int times = 0;
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while (true) {
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try {
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mNode.ping();
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break;
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} catch (Exception e) {
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if(times <= MAXWAITNUMBER) {
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log.warn("IndexGenerator.getMetadataIds - the mnode "+ mNode.getNodeBaseServiceUrl()+
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" is not ready :" +e.getMessage()+"\nWe will try to access it 10 seconds later ");
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try {
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Thread.sleep(WAITTIME);
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} catch (Exception ee) {
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log.warn("IndexGenerator.getMetadataIds - the thread can't sleep for 10 seconds to wait the MNode");
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}
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} else {
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throw new ServiceFailure("503", "IndexGenerator.getMetadataIds - the mnode "+ mNode.getNodeBaseServiceUrl()+
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" is not ready even though Metacat-index wailted for 30 minutes. We can't get the objects list from it and the building index can't happen this time");
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}
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}
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times++;
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}
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if(since == null && until == null) {
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objects = mNode.listObjects();
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} else {
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objects = mNode.listObjects(since, until, null, true, 0, Integer.MAX_VALUE);
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}
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if(objects != null) {
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List<ObjectInfo> objectInfoList = objects.getObjectInfoList();
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if(objectInfoList != null) {
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for(ObjectInfo info : objectInfoList) {
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if(info != null) {
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Identifier identifier = info.getIdentifier();
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if(identifier != null && identifier.getValue() != null && !identifier.getValue().equals("")) {
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ids.add(identifier.getValue());
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}
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}
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}
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}
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}
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return ids;
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}
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/*
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* Build up the mn base url
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*/
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private String buildMNBaseURL() {
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String url = HTTP+Settings.getConfiguration().getString("server.name")+":"+
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Settings.getConfiguration().getString("server.httpPort")+"/"+
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Settings.getConfiguration().getString("application.context")+MNAPPENDIX;
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log.info("IndexGenerator.buildMNBaseURL - the base url of MNode is "+url);
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return url;
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}
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/*
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* Generate index for the id.
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*/
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private void generateIndex(String id) throws Exception {
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if(id != null) {
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SystemMetadata sysmeta = systemMetadataListener.getSystemMetadata(id);
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if(sysmeta != null) {
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InputStream data = systemMetadataListener.getDataObject(id);
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Identifier obsolete = sysmeta.getObsoletes();
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List<String> obsoleteChain = null;
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if(obsolete != null) {
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obsoleteChain = systemMetadataListener.getObsoletes(id);
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}
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solrIndex.update(id, obsoleteChain, sysmeta, data);
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} else {
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throw new Exception("IndexGenerator.generate - there is no found SystemMetadata associated with the id "+id);
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}
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}
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}
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}
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