package org.apache.cassandra.stress.operations;
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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*/
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.List;
import com.yammer.metrics.core.TimerContext;
import org.apache.cassandra.db.ColumnFamilyType;
import org.apache.cassandra.stress.Session;
import org.apache.cassandra.stress.util.CassandraClient;
import org.apache.cassandra.stress.util.Operation;
import org.apache.cassandra.transport.messages.ResultMessage;
import org.apache.cassandra.thrift.Compression;
import org.apache.cassandra.thrift.CqlResult;
import org.apache.cassandra.thrift.CqlResultType;
import org.apache.cassandra.utils.ByteBufferUtil;
public class CqlCounterGetter extends CQLOperation
{
private static String cqlQuery = null;
public CqlCounterGetter(Session client, int idx)
{
super(client, idx);
}
protected void run(CQLQueryExecutor executor) throws IOException
{
if (session.getColumnFamilyType() == ColumnFamilyType.Super)
throw new RuntimeException("Super columns are not implemented for CQL");
if (cqlQuery == null)
{
StringBuilder query = new StringBuilder("SELECT ");
if (session.cqlVersion.startsWith("2"))
query.append("FIRST ").append(session.getColumnsPerKey()).append(" ''..''");
else
query.append("*");
String counterCF = session.cqlVersion.startsWith("2") ? "Counter1" : "Counter3";
query.append(" FROM ").append(wrapInQuotesIfRequired(counterCF));
if (session.cqlVersion.startsWith("2"))
query.append(" USING CONSISTENCY ").append(session.getConsistencyLevel().toString());
cqlQuery = query.append(" WHERE KEY=?").toString();
}
byte[] key = generateKey();
List<String> queryParams = Collections.singletonList(getUnQuotedCqlBlob(key, session.cqlVersion.startsWith("3")));
TimerContext context = session.latency.time();
boolean success = false;
String exceptionMessage = null;
for (int t = 0; t < session.getRetryTimes(); t++)
{
if (success)
break;
try
{
success = executor.execute(cqlQuery, queryParams);
}
catch (Exception e)
{
exceptionMessage = getExceptionMessage(e);
success = false;
}
}
if (!success)
{
error(String.format("Operation [%d] retried %d times - error reading counter key %s %s%n",
index,
session.getRetryTimes(),
new String(key),
(exceptionMessage == null) ? "" : "(" + exceptionMessage + ")"));
}
session.operations.getAndIncrement();
session.keys.getAndIncrement();
context.stop();
}
protected boolean validateThriftResult(CqlResult result)
{
return result.rows.get(0).columns.size() != 0;
}
protected boolean validateNativeResult(ResultMessage result)
{
return result instanceof ResultMessage.Rows && ((ResultMessage.Rows)result).result.size() != 0;
}
}