Package org.springframework.data.gemfire.fork

Source Code of org.springframework.data.gemfire.fork.FunctionCacheServerProcess$EchoFunction

/*
* Copyright 2012 the original author or authors.
*
* 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.
*/

package org.springframework.data.gemfire.fork;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Properties;

import org.springframework.data.gemfire.ForkUtil;

import com.gemstone.gemfire.cache.Cache;
import com.gemstone.gemfire.cache.CacheFactory;
import com.gemstone.gemfire.cache.DataPolicy;
import com.gemstone.gemfire.cache.Region;
import com.gemstone.gemfire.cache.RegionFactory;
import com.gemstone.gemfire.cache.Scope;
import com.gemstone.gemfire.cache.execute.FunctionAdapter;
import com.gemstone.gemfire.cache.execute.FunctionContext;
import com.gemstone.gemfire.cache.execute.FunctionService;
import com.gemstone.gemfire.cache.server.CacheServer;

/**
* @author Costin Leau
* @author David Turanski
*/
public class FunctionCacheServerProcess {
  static Region<Object,Object> testRegion;
  public static void main(String[] args) throws Exception {

    Properties props = new Properties();
    props.setProperty("name", "FunctionServer");
    props.setProperty("log-level", "config");
    props.setProperty("groups","g1,g2,g3");
    
    
    Cache cache = new CacheFactory(props).create();

    // Create region.
    RegionFactory<Object,Object> factory = cache.createRegionFactory();
    factory.setDataPolicy(DataPolicy.REPLICATE);
    factory.setScope(Scope.DISTRIBUTED_ACK);
    testRegion = factory.create("test-function");
    System.out.println("Test region, " + testRegion.getFullPath() + ", created in cache.");

    // Start Cache Server.
    CacheServer server = cache.addCacheServer();
    server.setPort(40404);
    server.start();
    System.out.println("Server started");

    
    testRegion.put("one", 1);
    testRegion.put("two", 2);
    testRegion.put("three", 3)
   
    System.out.println("Registering ServerFunction");
    FunctionService.registerFunction(new ServerFunction());
    System.out.println("Registered ServerFunction");
   
    System.out.println("Registering EchoFunction");
    FunctionService.registerFunction(new EchoFunction());
    System.out.println("Registered EchoFunction");
   
    ForkUtil.createControlFile(FunctionCacheServerProcess.class.getName());
   
    System.out.println("Waiting for shutdown");
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
    bufferedReader.readLine();
  }
 
  @SuppressWarnings("serial")
  static class ServerFunction extends FunctionAdapter {
    
    /* (non-Javadoc)
     * @see com.gemstone.gemfire.cache.execute.FunctionAdapter#execute(com.gemstone.gemfire.cache.execute.FunctionContext)
     */
    @Override
    public void execute(FunctionContext functionContext) {
      Object[] args = (Object[])functionContext.getArguments();
      testRegion.put(args[0], args[1]);
      functionContext.getResultSender().lastResult(null);
    }

    /* (non-Javadoc)
     * @see com.gemstone.gemfire.cache.execute.FunctionAdapter#getId()
     */
    @Override
    public String getId() {
      return "serverFunction";
    }
  }
 
  @SuppressWarnings("serial")
  static class EchoFunction extends FunctionAdapter {
    
    /* (non-Javadoc)
     * @see com.gemstone.gemfire.cache.execute.FunctionAdapter#execute(com.gemstone.gemfire.cache.execute.FunctionContext)
     */
    @Override
    public void execute(FunctionContext functionContext) {
      Object[] args = (Object[])functionContext.getArguments();
      for (int i=0; i< args.length; i++){
        if (i == args.length-1){
          functionContext.getResultSender().lastResult(args[i]);
        } else {
          functionContext.getResultSender().sendResult(args[i]);
        }
      }
    
     
    }
    @Override
    public String getId() {
      return "echoFunction";
    }
  }
 
 
}
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