/
SliceCommand.java
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/
SliceCommand.java
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package com.riptano.cassandra.stress;
import java.util.Random;
import java.util.concurrent.CountDownLatch;
import org.apache.cassandra.utils.LatencyTracker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import me.prettyprint.cassandra.serializers.StringSerializer;
import me.prettyprint.cassandra.service.CassandraHost;
import me.prettyprint.cassandra.service.HColumnFamilyImpl;
import me.prettyprint.hector.api.HColumnFamily;
import me.prettyprint.hector.api.Keyspace;
import me.prettyprint.hector.api.beans.ColumnSlice;
import me.prettyprint.hector.api.factory.HFactory;
import me.prettyprint.hector.api.query.QueryResult;
import me.prettyprint.hector.api.query.SliceQuery;
public class SliceCommand extends StressCommand {
private static Logger log = LoggerFactory.getLogger(SliceCommand.class);
private final SliceQuery<String, String, String> sliceQuery;
private final HColumnFamily<String, String> columnFamily;
private static StringSerializer se = StringSerializer.get();
public SliceCommand(int startKey, CommandArgs commandArgs, CommandRunner commandRunner) {
super(startKey, commandArgs, commandRunner);
sliceQuery = HFactory.createSliceQuery(commandArgs.keyspace, se, se, se);
columnFamily = new HColumnFamilyImpl<String, String>(commandArgs.keyspace, commandArgs.workingColumnFamily, se, se);
columnFamily.setCount(commandArgs.columnCount);
}
@Override
public Void call() throws Exception {
int rows = 0;
Random random = new Random();
sliceQuery.setColumnFamily(commandArgs.workingColumnFamily);
log.debug("Starting SliceCommand");
try {
while (rows < commandArgs.getKeysPerThread()) {
long nanos = System.nanoTime();
columnFamily.addKey(String.format("%010d", startKey + random.nextInt(commandArgs.getKeysPerThread())));
//sliceQuery.setKey(String.format("%010d", startKey + random.nextInt(commandArgs.getKeysPerThread())));
//sliceQuery.setRange(null, null, false, commandArgs.columnCount);
//QueryResult<ColumnSlice<String,String>> result = sliceQuery.execute();
columnFamily.getColumns();
//LatencyTracker readCount = commandRunner.latencies.get(new CassandraHost("localhost:9160"));
///readCount.addMicro((System.nanoTime() - nanos) / 1000);
columnFamily.removeKeys().clear();
rows++;
}
} catch (Exception e) {
log.error("Problem: ", e);
}
commandRunner.doneSignal.countDown();
log.debug("SliceCommand complete");
return null;
}
}