content: /**
   * 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.apex.malhar.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;
  
  }
  