| /* |
| * 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<String, Long> map = new HashMap<String, Long>(); |
| |
| /** |
| * 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<String, Long> getSnapshot() { |
| return ImmutableSortedMap.copyOf(map); |
| } |
| } |