org.apache.cassandra.index.sasi.memory.IndexMemtable Maven / Gradle / Ivy
/*
* 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.index.sasi.memory;
import java.nio.ByteBuffer;
import org.apache.cassandra.db.DecoratedKey;
import org.apache.cassandra.db.marshal.AbstractType;
import org.apache.cassandra.index.sasi.conf.ColumnIndex;
import org.apache.cassandra.index.sasi.disk.Token;
import org.apache.cassandra.index.sasi.plan.Expression;
import org.apache.cassandra.index.sasi.utils.RangeIterator;
import org.apache.cassandra.index.sasi.utils.TypeUtil;
import org.apache.cassandra.utils.FBUtilities;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class IndexMemtable
{
private static final Logger logger = LoggerFactory.getLogger(IndexMemtable.class);
private final MemIndex index;
public IndexMemtable(ColumnIndex columnIndex)
{
this.index = MemIndex.forColumn(columnIndex.keyValidator(), columnIndex);
}
public long index(DecoratedKey key, ByteBuffer value)
{
if (value == null || value.remaining() == 0)
return 0;
AbstractType validator = index.columnIndex.getValidator();
if (!TypeUtil.isValid(value, validator))
{
int size = value.remaining();
if ((value = TypeUtil.tryUpcast(value, validator)) == null)
{
logger.error("Can't add column {} to index for key: {}, value size {}, validator: {}.",
index.columnIndex.getColumnName(),
index.columnIndex.keyValidator().getString(key.getKey()),
FBUtilities.prettyPrintMemory(size),
validator);
return 0;
}
}
return index.add(key, value);
}
public RangeIterator search(Expression expression)
{
return index == null ? null : index.search(expression);
}
}