| /* |
| * 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.geode.internal.statistics; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.geode.Statistics; |
| import org.apache.geode.StatisticsType; |
| import org.apache.geode.annotations.Immutable; |
| |
| /** |
| * A statistics registry that creates dummy statistics instances, and does not keep a list of the |
| * instances it has created. |
| */ |
| public class DummyStatisticsRegistry extends StatisticsRegistry { |
| @Immutable |
| private static final List<Statistics> emptyInstances = Collections.emptyList(); |
| |
| public DummyStatisticsRegistry(String systemName, long startTime) { |
| super(systemName, startTime); |
| } |
| |
| @Override |
| public List<Statistics> getStatsList() { |
| return emptyInstances; |
| } |
| |
| @Override |
| public int getStatListModCount() { |
| return 0; |
| } |
| |
| @Override |
| public void destroyStatistics(Statistics instance) { |
| // noop |
| } |
| |
| @Override |
| protected Statistics newAtomicStatistics(StatisticsType type, long uniqueId, long numericId, |
| String textId) { |
| return new DummyStatisticsImpl(type, textId, numericId); |
| } |
| |
| @Override |
| protected Statistics newOsStatistics(StatisticsType type, long uniqueId, long numericId, |
| String textId, int osStatFlags) { |
| return new DummyStatisticsImpl(type, textId, numericId); |
| } |
| } |