/*
* Copyright 2010 Ted Dunning. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of <copyright holder>.
*/
package mia.classifier.ch16.client;
import com.google.common.collect.Lists;
import com.google.common.collect.Ordering;
import mia.classifier.ch16.server.Server;
import org.apache.thrift.TException;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Random;
/**
* Sample client that classifies some text.
*/
public class Client {
private static final List<String> newsgroupNames = Arrays.asList(
"alt.atheism",
"comp.graphics",
"comp.os.ms-windows.misc",
"comp.sys.ibm.pc.hardware",
"comp.sys.mac.hardware",
"comp.windows.x",
"misc.forsale",
"rec.autos",
"rec.motorcycles",
"rec.sport.baseball",
"rec.sport.hockey",
"sci.crypt",
"sci.electronics",
"sci.med",
"sci.space",
"soc.religion.christian",
"talk.politics.guns",
"talk.politics.mideast",
"talk.politics.misc",
"talk.religion.misc");
public static void main(String[] args) throws TException, IOException, InterruptedException, KeeperException {
ZooKeeper zk = new ZooKeeper("localhost", 2181, new Watcher() {
@Override
public void process(WatchedEvent watchedEvent) {
// ignore
}
});
List<String> servers = zk.getChildren(Server.ZK_CURRENT_SERVERS, false, null);
if (servers.size() == 0) {
throw new IllegalStateException("No servers to query");
}
String hostname = servers.get(new Random().nextInt(servers.size()));
System.out.printf("host = %s\n", hostname);
Connection c = new Connection(hostname, 7908);
List<Double> result1 = c.classify("this is some text to classify");
System.out.printf("%s\n", result1);
List<Double> result2 = c.classify("Given that the escrow keys are generated 200 at a time on floppy disks, why\\\\n\\\" +\\n\" +\n" +
" \" \\\"not keep them there rather than creating one huge database that will have to\\\\n\\\" +\\n\" +\n" +
" \" \\\"be guarded better than Fort Knox. ");
System.out.printf("%s\n", result2);
List<Double> x = Lists.newArrayList(result2);
Collections.sort(x, Ordering.<Double>natural().<Double>reverse());
int best = result2.indexOf(x.get(0));
System.out.printf("Highest score at index %d which corresponds to %s\n", best, newsgroupNames.get(best));
c.close();
}
}