| /* |
| * 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<Long, Token> search(Expression expression) |
| { |
| return index == null ? null : index.search(expression); |
| } |
| } |