/**
* 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 under the License.
*/
package org.apache.cassandra.stress.operations;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import org.apache.cassandra.stress.Operation;
import org.apache.cassandra.stress.util.ThriftClient;
import org.apache.cassandra.thrift.ColumnOrSuperColumn;
import org.apache.cassandra.thrift.ColumnParent;
import org.apache.cassandra.thrift.SlicePredicate;
import org.apache.cassandra.thrift.SliceRange;
import org.apache.cassandra.thrift.SuperColumn;
public final class ThriftReader extends Operation
{
public ThriftReader(State state, long index)
{
super(state, index);
}
public void run(final ThriftClient client) throws IOException
{
final SlicePredicate predicate = new SlicePredicate();
if (state.settings.columns.names == null)
predicate.setSlice_range(new SliceRange()
.setStart(new byte[] {})
.setFinish(new byte[] {})
.setReversed(false)
.setCount(state.settings.columns.maxColumnsPerKey)
);
else // see CASSANDRA-3064 about why this is useful
predicate.setColumn_names(state.settings.columns.names);
final ByteBuffer key = getKey();
final List<ByteBuffer> expect = state.rowGen.isDeterministic() ? generateColumnValues(key) : null;
for (final ColumnParent parent : state.columnParents)
{
timeWithRetry(new RunOp()
{
@Override
public boolean run() throws Exception
{
List<ColumnOrSuperColumn> row = client.get_slice(key, parent, predicate, state.settings.command.consistencyLevel);
if (expect == null)
return !row.isEmpty();
if (!state.settings.columns.useSuperColumns)
{
if (row.size() != expect.size())
return false;
for (int i = 0 ; i < row.size() ; i++)
if (!row.get(i).getColumn().bufferForValue().equals(expect.get(i)))
return false;
}
else
{
for (ColumnOrSuperColumn col : row)
{
SuperColumn superColumn = col.getSuper_column();
if (superColumn.getColumns().size() != expect.size())
return false;
for (int i = 0 ; i < expect.size() ; i++)
if (!superColumn.getColumns().get(i).bufferForValue().equals(expect.get(i)))
return false;
}
}
return true;
}
@Override
public String key()
{
return new String(key.array());
}
@Override
public int keyCount()
{
return 1;
}
});
}
}
}