第41章 リモートタスクの実行

public class HelloTask implements ServerTask<String> {

   private TaskContext ctx;

   //Set the task context.
   @Override
   public void setTaskContext(TaskContext ctx) {
      this.ctx = ctx;
   }

   //Take the name of a person as a parameter.
   //Return a greeting with that person's name.
   @Override
   public String call() throws Exception {
      String name = (String) ctx.getParameters().get().get("name");
      return "Hello " + name;
   }

   //Return a unique name that clients can use to invoke the task.
   @Override
   public String getName() {
      return "hello-task";
   }

}

public class HelloTask implements ServerTask<String> {

   private TaskContext ctx;

   //Set the task context.
   @Override
   public void setTaskContext(TaskContext ctx) {
      this.ctx = ctx;
   }

   //Take the name of a person as a parameter.
   //Return a greeting with that person's name.
   @Override
   public String call() throws Exception {
      String name = (String) ctx.getParameters().get().get("name");
      return "Hello " + name;
   }

   //Return a unique name that clients can use to invoke the task.
   @Override
   public String getName() {
      return "hello-task";
   }

}

import org.infinispan.client.hotrod.*;
import java.util.*;
[...]
String TASK_NAME = "sampleTask";

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache remoteCache = rcm.getCache();

// Assume the task takes a single parameter, and will return a result
Map<String, String> params = new HashMap<>();
params.put("name", "James");

String result = (String) remoteCache.execute(TASK_NAME, params);

import org.infinispan.client.hotrod.*;
import java.util.*;
[...]
String TASK_NAME = "sampleTask";

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache remoteCache = rcm.getCache();

// Assume the task takes a single parameter, and will return a result
Map<String, String> params = new HashMap<>();
params.put("name", "James");

String result = (String) remoteCache.execute(TASK_NAME, params);