/*
* Copyright 2016-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.redis.connection.lettuce;
import io.lettuce.core.resource.DefaultEventLoopGroupProvider;
import io.netty.util.concurrent.DefaultPromise;
import io.netty.util.concurrent.EventExecutorGroup;
import io.netty.util.concurrent.ImmediateEventExecutor;
import io.netty.util.concurrent.Promise;
import java.util.concurrent.TimeUnit;
/**
* A {@link io.lettuce.core.resource.EventLoopGroupProvider} suitable for testing. Preserves the event loop groups
* between tests. Every time a new {@link TestEventLoopGroupProvider} instance is created, a
* {@link Runtime#addShutdownHook(Thread) shutdown hook} is added to close the resources.
*
* @author Mark Paluch
* @author Christoph Strobl
*/
class TestEventLoopGroupProvider extends DefaultEventLoopGroupProvider {
private static final int NUMBER_OF_THREADS = 10;
public TestEventLoopGroupProvider() {
super(NUMBER_OF_THREADS);
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run() {
try {
TestEventLoopGroupProvider.this.shutdown(0, 0, TimeUnit.MILLISECONDS).get(1, TimeUnit.SECONDS);
} catch (Exception o_O) {
// ignored
}
}
});
}
@Override
public Promise<Boolean> release(EventExecutorGroup eventLoopGroup, long quietPeriod, long timeout, TimeUnit unit) {
DefaultPromise<Boolean> result = new DefaultPromise<Boolean>(ImmediateEventExecutor.INSTANCE);
result.setSuccess(true);
return result;
}
}