Java tutorial
/** * Copyright 2016 Nikita Koksharov * * 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.redisson; import org.redisson.api.RFuture; import org.redisson.command.CommandAsyncExecutor; import org.redisson.misc.RedissonPromise; import io.netty.util.concurrent.Future; import io.netty.util.concurrent.FutureListener; /** * * @author Nikita Koksharov * * @param <R> result type */ public class MapWriterPromise<R> extends RedissonPromise<R> { public MapWriterPromise(RFuture<R> f, final CommandAsyncExecutor commandExecutor, final MapWriterTask<R> task) { f.addListener(new FutureListener<R>() { @Override public void operationComplete(final Future<R> future) throws Exception { if (!future.isSuccess()) { tryFailure(future.cause()); return; } if (task.condition(future)) { commandExecutor.getConnectionManager().getExecutor().execute(new Runnable() { @Override public void run() { try { task.execute(); } catch (Exception e) { tryFailure(e); return; } trySuccess(future.getNow()); } }); } else { trySuccess(future.getNow()); } } }); } }