/*
* 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.hadoop.hive.accumulo.predicate.compare;
import java.nio.ByteBuffer;
/**
* Set of comparison operations over a long constant. Used for Hive predicates involving long
* comparison.
*
* Used by {@link org.apache.hadoop.hive.accumulo.predicate.PrimitiveComparisonFilter}
*/
public class LongCompare implements PrimitiveComparison {
private long constant;
@Override
public void init(byte[] constant) {
this.constant = serialize(constant);
}
@Override
public boolean isEqual(byte[] value) {
long lonVal = serialize(value);
return lonVal == constant;
}
@Override
public boolean isNotEqual(byte[] value) {
return serialize(value) != constant;
}
@Override
public boolean greaterThanOrEqual(byte[] value) {
return serialize(value) >= constant;
}
@Override
public boolean greaterThan(byte[] value) {
return serialize(value) > constant;
}
@Override
public boolean lessThanOrEqual(byte[] value) {
return serialize(value) <= constant;
}
@Override
public boolean lessThan(byte[] value) {
return serialize(value) < constant;
}
@Override
public boolean like(byte[] value) {
throw new UnsupportedOperationException("Like not supported for " + getClass().getName());
}
public Long serialize(byte[] value) {
try {
return ByteBuffer.wrap(value).asLongBuffer().get();
} catch (Exception e) {
throw new RuntimeException(e.toString() + " occurred trying to build long value. "
+ "Make sure the value type for the byte[] is long ");
}
}
}