1 /* 2 * Copyright (C) 2018 The Dagger Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package dagger.functional.producers.cancellation; 18 19 import static com.google.common.base.Preconditions.checkNotNull; 20 import static com.google.common.truth.Truth.assertThat; 21 22 import com.google.common.util.concurrent.ListenableFuture; 23 import dagger.Provides; 24 import dagger.producers.Producer; 25 import dagger.producers.ProducerModule; 26 import dagger.producers.Produces; 27 import javax.inject.Named; 28 29 @SuppressWarnings("unused") // not actually using dependencies 30 @ProducerModule(subcomponents = CancellationSubcomponent.class) 31 final class CancellationModule { 32 33 private final ProducerTester tester; 34 CancellationModule(ProducerTester tester)35 CancellationModule(ProducerTester tester) { 36 this.tester = checkNotNull(tester); 37 } 38 39 @Produces 40 @Named("leaf1") produceLeaf1()41 ListenableFuture<String> produceLeaf1() { 42 return tester.start("leaf1"); 43 } 44 45 @Produces 46 @Named("leaf2") produceLeaf2()47 ListenableFuture<String> produceLeaf2() { 48 return tester.start("leaf2"); 49 } 50 51 @Produces 52 @Named("leaf3") produceLeaf3()53 ListenableFuture<String> produceLeaf3() { 54 return tester.start("leaf3"); 55 } 56 57 @Produces 58 @Named("foo") produceFoo(@amed"leaf1") String leaf1, @Named("leaf2") String leaf2)59 ListenableFuture<String> produceFoo(@Named("leaf1") String leaf1, @Named("leaf2") String leaf2) { 60 return tester.start("foo"); 61 } 62 63 @Produces 64 @Named("bar") produceBar(@amed"leaf2") String leaf2, @Named("leaf3") String leaf3)65 ListenableFuture<String> produceBar(@Named("leaf2") String leaf2, @Named("leaf3") String leaf3) { 66 return tester.start("bar"); 67 } 68 69 @Produces 70 @Named("baz") produceBaz( @amed"foo") Producer<String> foo, @Named("bar") String bar)71 ListenableFuture<String> produceBaz( 72 @Named("foo") Producer<String> foo, @Named("bar") String bar) { 73 ListenableFuture<String> fooFuture = foo.get(); 74 if (!fooFuture.isDone()) { 75 assertThat(fooFuture.cancel(true)).isTrue(); 76 assertThat(fooFuture.isCancelled()).isTrue(); 77 } 78 return tester.start("baz"); 79 } 80 81 @Provides 82 @Named("providesDep") provideProvidesDep()83 static String provideProvidesDep() { 84 return "providesDep"; 85 } 86 87 @Produces 88 @Named("qux") produceQux( @amed"baz") String baz, @Named("providesDep") String providesDep)89 ListenableFuture<String> produceQux( 90 @Named("baz") String baz, @Named("providesDep") String providesDep) { 91 return tester.start("qux"); 92 } 93 94 @Produces 95 @Named("ep1") produceEntryPoint1(@amed"qux") String qux)96 ListenableFuture<String> produceEntryPoint1(@Named("qux") String qux) { 97 return tester.start("entryPoint1"); 98 } 99 100 @Produces 101 @Named("ep2") produceEntryPoint2(@amed"bar") String bar, String dependency)102 ListenableFuture<String> produceEntryPoint2(@Named("bar") String bar, String dependency) { 103 return tester.start("entryPoint2"); 104 } 105 106 @Produces 107 @Named("ep3") produceEntryPoint3(Producer<String> dependencyProducer)108 static ListenableFuture<String> produceEntryPoint3(Producer<String> dependencyProducer) { 109 ListenableFuture<String> dependencyFuture = dependencyProducer.get(); 110 assertThat(dependencyFuture.isDone()).isFalse(); 111 assertThat(dependencyFuture.cancel(true)).isTrue(); 112 assertThat(dependencyFuture.isCancelled()).isTrue(); 113 return dependencyFuture; 114 } 115 } 116