| /** |
| * 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 com.datatorrent.contrib.geode; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Properties; |
| |
| import com.gemstone.gemfire.cache.Cache; |
| import com.gemstone.gemfire.cache.CacheClosedException; |
| import com.gemstone.gemfire.cache.CacheFactory; |
| import com.gemstone.gemfire.cache.Declarable; |
| import com.gemstone.gemfire.cache.RegionExistsException; |
| import com.gemstone.gemfire.cache.RegionShortcut; |
| import com.gemstone.gemfire.cache.execute.FunctionAdapter; |
| import com.gemstone.gemfire.cache.execute.FunctionContext; |
| |
| /** |
| * Function to create region dynamically through client API |
| * |
| * |
| * @since 3.4.0 |
| */ |
| public class RegionCreateFunction extends FunctionAdapter implements Declarable |
| { |
| |
| @Override |
| public void init(Properties arg0) |
| { |
| } |
| |
| /** |
| * Create a region in Geode cluster |
| */ |
| @Override |
| public void execute(FunctionContext context) |
| { |
| List<Object> args = (List<Object>)context.getArguments(); |
| String regionName = (String)args.get(0); |
| |
| try { |
| Cache cache = CacheFactory.getAnyInstance(); |
| if (cache.getRegion(regionName) == null) { |
| |
| cache.createRegionFactory(RegionShortcut.PARTITION).create(regionName); |
| } |
| } catch (RegionExistsException re) { |
| context.getResultSender().lastResult(new ArrayList<Integer>()); |
| } catch (CacheClosedException e) { |
| context.getResultSender().lastResult(new ArrayList<Integer>()); |
| } |
| context.getResultSender().lastResult(new ArrayList<Integer>()); |
| } |
| |
| /** |
| * Return name to create Region |
| */ |
| @Override |
| public String getId() |
| { |
| return this.getClass().getName(); |
| } |
| |
| private static final long serialVersionUID = 2450085868879041729L; |
| |
| } |