/**
* 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.ql.stats;
import org.apache.hadoop.hive.conf.HiveConf;
/**
* An test implementation for StatsAggregator.
* The method corresponding to the configuration parameter
* hive.test.dummystats.aggregator fail, whereas all
* other methods succeed.
*/
public class DummyStatsAggregator implements StatsAggregator {
String errorMethod = null;
// This is a test. The parameter hive.test.dummystats.aggregator's value
// denotes the method which needs to throw an error.
@Override
public boolean connect(StatsCollectionContext scc) {
errorMethod = HiveConf.getVar(scc.getHiveConf(), HiveConf.ConfVars.HIVETESTMODEDUMMYSTATAGGR);
if (errorMethod.equalsIgnoreCase("connect")) {
return false;
}
return true;
}
@Override
public String aggregateStats(String keyPrefix, String statType) {
return null;
}
@Override
public boolean closeConnection(StatsCollectionContext scc) {
if (errorMethod.equalsIgnoreCase("closeConnection")) {
return false;
}
return true;
}
}