/*
* This is eMonocot, a global online biodiversity information resource.
*
* Copyright © 2011–2015 The Board of Trustees of the Royal Botanic Gardens, Kew and The University of Oxford
*
* eMonocot is free software: you can redistribute it and/or modify it under the terms of the
* GNU Affero General Public License as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* eMonocot is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* The complete text of the GNU Affero General Public License is in the source repository as the file
* ‘COPYING’. It is also available from <http://www.gnu.org/licenses/>.
*/
package org.emonocot.harvest.common;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.request.CoreAdminRequest;
import org.apache.solr.client.solrj.response.CoreAdminResponse;
import org.apache.solr.common.util.NamedList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;
public class SolrOptimizingTasklet implements Tasklet {
private static Logger logger = LoggerFactory.getLogger(SolrOptimizingTasklet.class);
private String core;
private Integer maxSegments;
private SolrServer solrServer;
public void setCore(String core) {
this.core = core;
}
public void setMaxSegments(Integer maxSegments) {
this.maxSegments = maxSegments;
}
public void setSolrServer(SolrServer solrServer) {
this.solrServer = solrServer;
}
@Override
public RepeatStatus execute(StepContribution contribution,
ChunkContext chunkContext) throws Exception {
CoreAdminResponse coreAdminResponse = CoreAdminRequest.getStatus(core, solrServer);
NamedList<Object> index = (NamedList<Object>)coreAdminResponse.getCoreStatus(core).get("index");
Integer segmentCount = (Integer)index.get("segmentCount");
if(segmentCount < maxSegments) {
logger.debug("Core " + core + " only has " + segmentCount + " segments, skipping optimization");
} else {
logger.debug("Core " + core + " has " + segmentCount + " segments, starting optimization");
solrServer.optimize(true, true);
logger.debug("Core " + core + " optimized");
}
return RepeatStatus.FINISHED;
}
}