/**
* 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.tajo.master.metrics;
import com.codahale.metrics.Gauge;
import com.codahale.metrics.Metric;
import com.codahale.metrics.MetricSet;
import org.apache.tajo.master.TajoMaster;
import java.util.HashMap;
import java.util.Map;
import static org.apache.tajo.TajoConstants.DEFAULT_DATABASE_NAME;
public class CatalogMetricsGaugeSet implements MetricSet {
TajoMaster.MasterContext tajoMasterContext;
public CatalogMetricsGaugeSet(TajoMaster.MasterContext tajoMasterContext) {
this.tajoMasterContext = tajoMasterContext;
}
@Override
public Map<String, Metric> getMetrics() {
Map<String, Metric> metricsMap = new HashMap<String, Metric>();
metricsMap.put("numTables", new Gauge<Integer>() {
@Override
public Integer getValue() {
return tajoMasterContext.getCatalog().getAllTableNames(DEFAULT_DATABASE_NAME).size();
}
});
metricsMap.put("numFunctions", new Gauge<Integer>() {
@Override
public Integer getValue() {
return tajoMasterContext.getCatalog().getFunctions().size();
}
});
return metricsMap;
}
}