InvenioBitsetStreamResponseWriter.java
aa232da412f9iugw2017

InvenioBitsetStreamResponseWriter.java
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			package org.invenio_software.solr;

			import java.io.*;
			import org.apache.solr.request.SolrQueryRequest;
			import org.apache.solr.response.BinaryResponseWriter;
			import org.apache.solr.common.SolrException;
			import org.apache.solr.core.SolrCore;

			import com.jcraft.jzlib.*;
			import org.apache.solr.core.SolrResourceLoader;
			import org.apache.solr.response.SolrQueryResponse;
			import org.slf4j.Logger;
			import org.slf4j.LoggerFactory;
			/**
			*
			* @author jluker
			*/
			public class InvenioBitsetStreamResponseWriter extends BinaryResponseWriter {

			public static final Logger log = LoggerFactory.getLogger(SolrResourceLoader.class);

			@Override
			public void write(OutputStream out, SolrQueryRequest req, SolrQueryResponse rsp) {

			log.info("In the streaming response writer");

			InvenioBitSet bitset = (InvenioBitSet) rsp.getValues().get("bitset");
			log.info("bitset size: " + bitset.size());

			ZOutputStream zOut = new ZOutputStream(out, JZlib.Z_BEST_SPEED);

			try {
			zOut.write(bitset.toByteArray());
			zOut.flush();
			zOut.close();
			}
			catch (IOException e) {
			SolrException.logOnce(SolrCore.log, "Exception during compression/output of bitset", e);
			}
			}
			}