/*
 * 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 org.apache.geode.cache.Cache;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.execute.FunctionContext;
import org.apache.geode.internal.cache.InternalCache;
import org.apache.geode.internal.cache.execute.InternalFunction;
import org.apache.geode.management.internal.cli.domain.RegionDescriptionPerMember;

public class GetRegionDescriptionFunction implements InternalFunction<String> {
  private static final long serialVersionUID = 1L;

  private static final String ID =
      "org.apache.geode.management.internal.cli.functions.GetRegionDescriptionFunction";

  @Override
  public String getId() {
    return ID;
  }

  @Override
  public void execute(FunctionContext<String> context) {
    String regionPath = context.getArguments();
    try {
      Cache cache = ((InternalCache) context.getCache()).getCacheForProcessingClientRequests();
      Region<?, ?> region = cache.getRegion(regionPath);

      if (region != null) {
        String memberName = cache.getDistributedSystem().getDistributedMember().getName();
        RegionDescriptionPerMember regionDescription =
            new RegionDescriptionPerMember(region, memberName);
        context.getResultSender().lastResult(regionDescription);
      } else {
        context.getResultSender().lastResult(null);
      }
    } catch (Exception e) {
      context.getResultSender().sendException(e);
    }
  }
}
