package com.lenzhao.framework.protocol;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import com.lenzhao.framework.common.Constants;
/**
*适配器，客户端只需要依赖Future接口，而服务端依赖的是InvokeFuture
*/
public class FutureAdapter<V> implements Future<V> {
private InvokeFuture invokeFuture = null;
public FutureAdapter(InvokeFuture invokeFuture) {
this.invokeFuture = invokeFuture;
}
@Override
public boolean cancel(boolean mayInterruptIfRunning) {
return false;
}
@Override
public boolean isCancelled() {
return false;
}
@Override
public boolean isDone() {
return invokeFuture.isDone();
}
@Override
public V get() throws InterruptedException, ExecutionException {
return (V)invokeFuture.get(Constants.TIMEOUT_INVOKE_MILLSECOND).getResult();
}
@Override
public V get(long timeout, TimeUnit unit) throws InterruptedException,
ExecutionException, TimeoutException {
int timeoutInMillis = (int) unit.convert(timeout, TimeUnit.MILLISECONDS);
return (V)invokeFuture.get(timeoutInMillis).getResult();
}
}
