/*
* 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.accumulo.core.file.keyfunctor;
import org.apache.accumulo.core.data.ByteSequence;
import org.apache.accumulo.core.data.PartialKey;
import org.apache.accumulo.core.data.Range;
import org.apache.hadoop.util.bloom.Key;
public class RowFunctor implements KeyFunctor {
@Override
public Key transform(org.apache.accumulo.core.data.Key acuKey) {
byte keyData[];
ByteSequence row = acuKey.getRowData();
keyData = new byte[row.length()];
System.arraycopy(row.getBackingArray(), 0, keyData, 0, row.length());
return new Key(keyData, 1.0);
}
@Override
public Key transform(Range range) {
if (isRangeInBloomFilter(range, PartialKey.ROW)) {
return transform(range.getStartKey());
}
return null;
}
static boolean isRangeInBloomFilter(Range range, PartialKey keyDepth) {
if (range.getStartKey() == null || range.getEndKey() == null) {
return false;
}
if (range.getStartKey().equals(range.getEndKey(), keyDepth))
return true;
// include everything but the deleted flag in the comparison...
return range.getStartKey().followingKey(keyDepth).equals(range.getEndKey(), PartialKey.ROW_COLFAM_COLQUAL_COLVIS_TIME) && !range.isEndKeyInclusive();
}
}