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67 lines
1.9 KiB
Java
67 lines
1.9 KiB
Java
/**
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*
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* Copyright 2015 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.igniterealtime.smack.inttest.util;
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import java.util.concurrent.TimeoutException;
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import org.jivesoftware.smack.util.Objects;
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public class ResultSyncPoint<R, E extends Exception> {
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private R result;
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private E exception;
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public R waitForResult(long timeout) throws E, InterruptedException, TimeoutException {
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synchronized (this) {
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if (result != null) {
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return result;
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}
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if (exception != null) {
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throw exception;
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}
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final long deadline = System.currentTimeMillis() + timeout;
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while (result == null && exception == null) {
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final long now = System.currentTimeMillis();
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if (now >= deadline) break;
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wait(deadline - now);
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}
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}
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if (result != null) {
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return result;
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}
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if (exception != null) {
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throw exception;
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}
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throw new TimeoutException("Timeout expired");
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}
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public void signal(R result) {
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synchronized (this) {
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this.result = Objects.requireNonNull(result);
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notifyAll();
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}
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}
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public void signal(E exception) {
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synchronized (this) {
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this.exception = Objects.requireNonNull(exception);
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notifyAll();
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}
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}
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}
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