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DistributedHelloServerTask.java
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DistributedHelloServerTask.java
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package org.infinispan.server.extensions;
import java.util.ArrayList;
import java.util.Collection;
import org.infinispan.remoting.transport.Address;
import org.infinispan.tasks.ServerTask;
import org.infinispan.tasks.TaskContext;
import org.infinispan.tasks.TaskExecutionMode;
/**
* @author Tristan Tarrant <tristan@infinispan.org>
* @since 11.0
**/
public class DistributedHelloServerTask implements ServerTask {
private TaskContext taskContext;
@Override
public void setTaskContext(TaskContext taskContext) {
this.taskContext = taskContext;
}
@Override
public Object call() {
Address address = taskContext.getCacheManager().getAddress();
Object greetee = taskContext.getParameters().get().get("greetee");
// if we're dealing with a Collections of greetees we'll greet them individually
if (greetee instanceof Collection) {
ArrayList<String> messages = new ArrayList<>();
for (Object o : (Collection<?>) greetee) {
messages.add(greet(o, address));
}
return messages;
}
return greet(greetee, address);
}
private String greet(Object greetee, Address address) {
return String.format("Hello %s from %s", greetee == null ? "world" : greetee, address);
}
@Override
public TaskExecutionMode getExecutionMode() {
return TaskExecutionMode.ALL_NODES;
}
@Override
public String getName() {
return "dist-hello";
}
}