| /* |
| * 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.Region; |
| import org.apache.geode.cache.execute.FunctionContext; |
| import org.apache.geode.internal.cache.execute.InternalFunction; |
| import org.apache.geode.management.internal.cli.domain.RegionInformation; |
| |
| /** |
| * Function that retrieves regions hosted on every member |
| */ |
| public class GetRegionsFunction implements InternalFunction<Void> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public void execute(FunctionContext<Void> functionContext) { |
| try { |
| Cache cache = functionContext.getCache(); |
| 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(new RegionInformation[0])); |
| } |
| } catch (Exception e) { |
| functionContext.getResultSender().sendException(e); |
| } |
| } |
| } |