com.google.gwt.dev.util.log.MetricMap Maven / Gradle / Ivy
/*
* Copyright 2014 Google Inc.
*
* 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.
*/
package com.google.gwt.dev.util.log;
import com.google.gwt.dev.util.collect.HashMap;
import com.google.gwt.thirdparty.guava.common.collect.ImmutableSortedMap;
import java.util.Map;
/**
* Holds mappings from metrics to their values. Thread-safe.
*/
public class MetricMap implements CanUpdateMetrics {
private final Map map = new HashMap();
/**
* Each MetricMap lives in one or more TreeLoggers.
* See {@link AbstractTreeLogger#resetMetricMap()}.
*/
MetricMap() {
}
public synchronized void setAmount(MetricName name, long amount) {
map.put(name.key, amount);
}
public synchronized ImmutableSortedMap getSnapshot() {
return ImmutableSortedMap.copyOf(map);
}
}