/**
* 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.hbase.master.balancer;
import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
/**
* Faced for exposing metrics about the balancer.
*/
public class MetricsBalancer {
private MetricsBalancerSource source = null;
public MetricsBalancer() {
initSource();
}
/**
* A function to instantiate the metrics source. This function can be overridden in its
* subclasses to provide extended sources
*/
protected void initSource() {
source = CompatibilitySingletonFactory.getInstance(MetricsBalancerSource.class);
}
public void balanceCluster(long time) {
source.updateBalanceCluster(time);
}
public void incrMiscInvocations() {
source.incrMiscInvocations();
}
}