/*
* 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.management.internal.cli.functions;
import java.util.HashSet;
import java.util.Set;
import org.apache.geode.cache.Cache;
import org.apache.geode.cache.CacheFactory;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.execute.Function;
import org.apache.geode.cache.execute.FunctionContext;
import org.apache.geode.internal.InternalEntity;
import org.apache.geode.management.internal.cli.domain.RegionInformation;
/**
* Function that retrieves regions hosted on every member
*/
public class GetRegionsFunction implements Function, InternalEntity {
private static final long serialVersionUID = 1L;
@Override
public String getId() {
// TODO Auto-generated method stub
return GetRegionsFunction.class.toString();
}
@Override
public void execute(FunctionContext functionContext) {
try {
Cache cache = CacheFactory.getAnyInstance();
Set<Region<?, ?>> regions = cache.rootRegions(); // should never return a null
if (regions == null || regions.isEmpty()) {
functionContext.getResultSender().lastResult(null);
} else {
Set<RegionInformation> regionInformationSet = new HashSet<>();
for (Region<?, ?> region : regions) {
RegionInformation regInfo = new RegionInformation(region, true);
regionInformationSet.add(regInfo);
}
functionContext.getResultSender().lastResult(regionInformationSet.toArray());
}
} catch (Exception e) {
functionContext.getResultSender().sendException(e);
}
}
}