ivory.cascade.retrieval.RunQueryLocalCascade.java Source code

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Here is the source code for ivory.cascade.retrieval.RunQueryLocalCascade.java

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/*
 * Ivory: A Hadoop toolkit for web-scale information retrieval
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License. You may
 * obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

package ivory.cascade.retrieval;

import java.io.IOException;
import java.rmi.NotBoundException;

import javax.xml.parsers.ParserConfigurationException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.log4j.Logger;
import org.xml.sax.SAXException;

/**
 * @author Lidan Wang
 */
public class RunQueryLocalCascade {
    private static final Logger LOG = Logger.getLogger(RunQueryLocalCascade.class);

    private CascadeBatchQueryRunner runner = null;

    public RunQueryLocalCascade(String[] args)
            throws SAXException, IOException, ParserConfigurationException, Exception, NotBoundException {
        LOG.info("Initializing QueryRunner...");

        Configuration conf = new Configuration();
        FileSystem fs = FileSystem.getLocal(conf);
        runner = new CascadeBatchQueryRunner(args, fs);
    }

    /**
     * runs the queries
     */
    public void runQueries() throws Exception {
        LOG.info("Running queries ...");
        long start = System.currentTimeMillis();
        runner.runQueries();
        long end = System.currentTimeMillis();

        LOG.info("Total query time: " + (end - start) + "ms");
    }

    public static void main(String[] args) throws Exception {
        new RunQueryLocalCascade(args).runQueries();
        System.exit(0);
    }
}