1 /* 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package jdk.incubator.http.internal.websocket; 25 26 import jdk.incubator.http.internal.common.Pair; 27 import jdk.incubator.http.internal.common.SequentialScheduler; 28 import jdk.incubator.http.internal.common.SequentialScheduler.DeferredCompleter; 29 30 import java.util.Arrays; 31 import java.util.Iterator; 32 import java.util.concurrent.CompletableFuture; 33 import java.util.concurrent.CompletionStage; 34 import java.util.function.Consumer; 35 36 public class MockReceiver extends Receiver { 37 38 private final Iterator<Pair<CompletionStage<?>, Consumer<MessageStreamConsumer>>> iterator; 39 private final MessageStreamConsumer consumer; 40 41 public MockReceiver(MessageStreamConsumer consumer, RawChannel channel, 42 Pair<CompletionStage<?>, Consumer<MessageStreamConsumer>>... pairs) { 43 super(consumer, channel); 44 this.consumer = consumer; 45 iterator = Arrays.asList(pairs).iterator(); 46 } 47 48 @Override 49 protected SequentialScheduler createScheduler() { 50 class X { // Class is hack needed to allow the task to refer to the scheduler 51 SequentialScheduler scheduler = new SequentialScheduler(task()); 52 53 SequentialScheduler.RestartableTask task() { 54 return new SequentialScheduler.RestartableTask() { 55 @Override 56 public void run(DeferredCompleter taskCompleter) { 57 if (!scheduler.isStopped() && !demand.isFulfilled()) { 58 if (!iterator.hasNext()) { 59 taskCompleter.complete(); 60 return; 61 } 62 Pair<CompletionStage<?>, Consumer<MessageStreamConsumer>> p = iterator.next(); 63 CompletableFuture<?> cf = p.first.toCompletableFuture(); 64 if (cf.isDone()) { // Forcing synchronous execution 65 p.second.accept(consumer); 66 repeat(taskCompleter); 67 } else { 68 cf.whenCompleteAsync((r, e) -> { 69 p.second.accept(consumer); 70 repeat(taskCompleter); 71 }); 72 } 73 } else { 74 taskCompleter.complete(); 75 } 76 } 77 78 private void repeat(DeferredCompleter taskCompleter) { 79 taskCompleter.complete(); 80 scheduler.runOrSchedule(); 81 } 82 }; 83 } 84 } 85 return new X().scheduler; 86 } 87 }