org.jboss.ejb.client.remoting.IoFutureHelper Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of wildfly-client-all

This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

There is a newer version: 35.0.0.Beta1

Show newest version

/*
 * JBoss, Home of Professional Open Source.
 * Copyright (c) 2011, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.ejb.client.remoting;

import org.xnio.IoFuture;

import java.io.IOException;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * @author Carlo de Wolf
 */
@Deprecated // make non-public
public class IoFutureHelper {
    public static  Future future(final IoFuture ioFuture) {
        return new Future() {
            @Override
            public boolean cancel(boolean mayInterruptIfRunning) {
                return ioFuture.cancel().getStatus() == IoFuture.Status.CANCELLED;
            }

            @Override
            public boolean isCancelled() {
                return ioFuture.getStatus() == IoFuture.Status.CANCELLED;
            }

            @Override
            public boolean isDone() {
                return ioFuture.getStatus() == IoFuture.Status.DONE;
            }

            @Override
            public V get() throws InterruptedException, ExecutionException {
                final IoFuture.Status status = ioFuture.awaitInterruptibly();
                return result(status);
            }

            @Override
            public V get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
                final IoFuture.Status status = ioFuture.awaitInterruptibly(timeout, unit);
                if (status == IoFuture.Status.WAITING)
                    throw new TimeoutException("Operation timed out");
                return result(status);
            }

            private V result(final IoFuture.Status status) throws ExecutionException {
                switch (status) {
                    case CANCELLED:
                        throw new CancellationException();
                    case FAILED:
                        throw new ExecutionException(ioFuture.getException());
                }
                try {
                    return ioFuture.get();
                } catch (IOException e) {
                    throw new ExecutionException(e);
                }
            }
        };
    }

    public static  V get(final IoFuture ioFuture, final long timeout, final TimeUnit unit) throws IOException {
        final IoFuture.Status status = ioFuture.await(timeout, unit);
        switch (status) {
            case DONE:
                return ioFuture.get();
            case FAILED:
                throw ioFuture.getException();
        }
        throw new RuntimeException("Operation failed with status " + status);
    }
}