/*
* Copyright 1999-2012 HP.
*
* Licensed 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.
*/
/**
* (created at 2011-7-20)
*/
package org.opencloudb.route.function;
import org.opencloudb.config.model.rule.RuleAlgorithm;
import org.opencloudb.route.util.PartitionUtil;
public final class PartitionByLong implements RuleAlgorithm {
protected int[] count;
protected int[] length;
protected PartitionUtil partitionUtil;
private static int[] toIntArray(String string) {
String[] strs = org.opencloudb.util.SplitUtil.split(string, ',', true);
int[] ints = new int[strs.length];
for (int i = 0; i < strs.length; ++i) {
ints[i] = Integer.parseInt(strs[i]);
}
return ints;
}
public void setPartitionCount(String partitionCount) {
this.count = toIntArray(partitionCount);
}
public void setPartitionLength(String partitionLength) {
this.length = toIntArray(partitionLength);
}
@Override
public void init() {
partitionUtil = new PartitionUtil(count, length);
}
@Override
public Integer calculate(String columnValue) {
long key = Long.parseLong(columnValue);
return partitionUtil.partition(key);
}
}