SolrDeletingWriter.java

/*
 * 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 java.util.List;

import org.apache.solr.client.solrj.SolrServer;
import org.springframework.batch.item.ItemWriter;

/**
 *
 * @author ben
 *
 */
public class SolrDeletingWriter implements ItemWriter<String> {

	private SolrServer solrServer;

	public void setSolrServer(SolrServer solrServer) {
		this.solrServer = solrServer;
	}

	public void write(List<? extends String> documentIdentifiers) throws Exception {
		if (!documentIdentifiers.isEmpty()) {

			try {

				solrServer.deleteById((List) documentIdentifiers);
				solrServer.commit(true,true);
			} catch (Exception e) {
				throw new RuntimeException(e);
			}
		}
	}
}