helloworld.HelloWorldConsumer Maven / Gradle / Ivy

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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed 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. See accompanying
 * LICENSE file.
 */
package helloworld;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import com.gemstone.gemfire.cache.Cache;
import com.gemstone.gemfire.cache.CacheFactory;
import com.gemstone.gemfire.cache.Region;

/**
 * This example shows two members with replicated regions. This member will
 * store a copy of the updates sent from the HelloWorldProducer. 
 * Please refer to the quickstart guide for instructions on how to run this example.
 * 
 * @author GemStone Systems, Inc.
 * 
 * @since 6.5
 */
public class HelloWorldConsumer {

  public static void main(String[] args) throws Exception {
    System.out.println("\nThis example shows how a distributed region works with replication enabled. I'll create a replicate region, then the producer will create the same region and put entries into it. Because my region is a replicate, all of the producer's puts are automatically pushed into my region. ");
    System.out.println("\nConnecting to the distributed system and creating the cache.");
    
    // Create the cache which causes the cache-xml-file to be parsed
    Cache cache = new CacheFactory()
      .set("cache-xml-file", "xml/HelloWorld.xml")
      .create();

    // Get the exampleRegion
    Region exampleRegion = cache.getRegion("exampleRegion");
    System.out.println("Example region, " + exampleRegion.getFullPath() + ", created in cache. ");
 
    System.out.println("\nPlease start the HelloWorldProducer.\n");
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
    bufferedReader.readLine();
    
    // Close the cache and disconnect from GemFire distributed system
    System.out.println("Closing the cache and disconnecting.");
    cache.close();
  }
}