Java Code Examples for java.util.concurrent.CompletableFuture#minimalCompletionStage()
The following examples show how to use
java.util.concurrent.CompletableFuture#minimalCompletionStage() .
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Example 1
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
/** * minimalStage.toCompletableFuture() returns a CompletableFuture that * is completed normally, with the same value, when source is. */ public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() { for (boolean createIncomplete : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> minimal = f.minimalCompletionStage(); if (!createIncomplete) assertTrue(f.complete(v1)); CompletableFuture<Integer> g = minimal.toCompletableFuture(); if (createIncomplete) { checkIncomplete(f); checkIncomplete(g); assertTrue(f.complete(v1)); } checkCompletedNormally(f, v1); checkCompletedNormally(g, v1); }}
Example 2
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
/** * minimalStage.toCompletableFuture() returns a CompletableFuture that * is completed exceptionally when source is. */ public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() { for (boolean createIncomplete : new boolean[] { true, false }) { CFException ex = new CFException(); CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> minimal = f.minimalCompletionStage(); if (!createIncomplete) f.completeExceptionally(ex); CompletableFuture<Integer> g = minimal.toCompletableFuture(); if (createIncomplete) { checkIncomplete(f); checkIncomplete(g); f.completeExceptionally(ex); } checkCompletedExceptionally(f, ex); checkCompletedWithWrappedException(g, ex); }}
Example 3
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
/** * Joining a minimal stage "by hand" works */ public void testMinimalCompletionStage_join_by_hand() { for (boolean createIncomplete : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> minimal = f.minimalCompletionStage(); CompletableFuture<Integer> g = new CompletableFuture<>(); if (!createIncomplete) assertTrue(f.complete(v1)); minimal.thenAccept(x -> g.complete(x)); if (createIncomplete) assertTrue(f.complete(v1)); g.join(); checkCompletedNormally(g, v1); checkCompletedNormally(f, v1); assertEquals(v1, join(minimal)); }}
Example 4
Source File: Java9RequestContextAwareFutureTest.java From armeria with Apache License 2.0 | 6 votes |
@Test void minimalCompletionStageUsingWhenComplete() throws Exception { final RequestContext context = ServiceRequestContext.builder(HttpRequest.of(HttpMethod.GET, "/")).build(); final CompletableFuture<Integer> originalFuture = new CompletableFuture<>(); final CompletableFuture<Integer> contextAwareFuture = context.makeContextAware(originalFuture); final CompletionStage<Integer> completionStage = contextAwareFuture.minimalCompletionStage(); final AtomicInteger atomicInteger = new AtomicInteger(); final AtomicReference<Throwable> causeCaptor = new AtomicReference<>(); completionStage.whenComplete((result, error) -> { if (error != null) { causeCaptor.set(error); } else { atomicInteger.set(result); } }); contextAwareFuture.complete(1); assertThat(contextAwareFuture.join()).isEqualTo(1); assertThat(contextAwareFuture.getNow(null)).isEqualTo(1); assertThat(contextAwareFuture.get()).isEqualTo(1); assertThat(atomicInteger.get()).isEqualTo(1); assertThat(causeCaptor.get()).isNull(); }
Example 5
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
/** * minimalCompletionStage returns a CompletableFuture that is * completed normally, with the same value, when source is. */ public void testMinimalCompletionStage() { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> g = f.minimalCompletionStage(); AtomicInteger x = new AtomicInteger(0); AtomicReference<Throwable> r = new AtomicReference<>(); checkIncomplete(f); g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); f.complete(1); checkCompletedNormally(f, 1); assertEquals(x.get(), 1); assertNull(r.get()); }
Example 6
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
/** * minimalCompletionStage returns a CompletableFuture that is * completed exceptionally when source is. */ public void testMinimalCompletionStage2() { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> g = f.minimalCompletionStage(); AtomicInteger x = new AtomicInteger(0); AtomicReference<Throwable> r = new AtomicReference<>(); g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); checkIncomplete(f); CFException ex = new CFException(); f.completeExceptionally(ex); checkCompletedExceptionally(f, ex); assertEquals(x.get(), 0); assertEquals(r.get().getCause(), ex); }
Example 7
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
/** * minimalStage.toCompletableFuture() gives mutable CompletableFuture */ public void testMinimalCompletionStage_toCompletableFuture_mutable() { for (Integer v1 : new Integer[] { 1, null }) { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage minimal = f.minimalCompletionStage(); CompletableFuture<Integer> g = minimal.toCompletableFuture(); assertTrue(g.complete(v1)); checkCompletedNormally(g, v1); checkIncomplete(f); checkIncomplete(minimal.toCompletableFuture()); }}
Example 8
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
/** * minimalStage.toCompletableFuture().join() awaits completion */ public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception { for (boolean createIncomplete : new boolean[] { true, false }) for (Integer v1 : new Integer[] { 1, null }) { CompletableFuture<Integer> f = new CompletableFuture<>(); if (!createIncomplete) assertTrue(f.complete(v1)); CompletionStage<Integer> minimal = f.minimalCompletionStage(); if (createIncomplete) assertTrue(f.complete(v1)); assertEquals(v1, minimal.toCompletableFuture().join()); assertEquals(v1, minimal.toCompletableFuture().get()); checkCompletedNormally(minimal.toCompletableFuture(), v1); }}
Example 9
Source File: CompletableFutureTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
/** * Completion of a toCompletableFuture copy of a minimal stage * does not complete its source. */ public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> g = f.minimalCompletionStage(); assertTrue(g.toCompletableFuture().complete(1)); assertTrue(g.toCompletableFuture().complete(null)); assertTrue(g.toCompletableFuture().cancel(true)); assertTrue(g.toCompletableFuture().cancel(false)); assertTrue(g.toCompletableFuture().completeExceptionally(new CFException())); checkIncomplete(g.toCompletableFuture()); f.complete(1); checkCompletedNormally(g.toCompletableFuture(), 1); }
Example 10
Source File: Java9RequestContextAwareFutureTest.java From armeria with Apache License 2.0 | 5 votes |
@Test void minimalCompletionStageUsingToCompletableFutureMutable() throws Exception { final RequestContext context = ServiceRequestContext.builder(HttpRequest.of(HttpMethod.GET, "/")).build(); final CompletableFuture<Integer> originalFuture = new CompletableFuture<>(); final CompletableFuture<Integer> contextAwareFuture = context.makeContextAware(originalFuture); final CompletionStage<Integer> completionStage = contextAwareFuture.minimalCompletionStage(); assertThat(contextAwareFuture.complete(1)).isTrue(); assertThat(contextAwareFuture.join()).isEqualTo(1); assertThat(contextAwareFuture.getNow(null)).isEqualTo(1); assertThat(contextAwareFuture.get()).isEqualTo(1); assertThat(completionStage.toCompletableFuture().get()).isEqualTo(1); }
Example 11
Source File: CompletableFutureTest.java From j2objc with Apache License 2.0 | 5 votes |
/** * minimalCompletionStage returns a CompletableFuture that is * completed normally, with the same value, when source is. */ public void testMinimalCompletionStage() { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> g = f.minimalCompletionStage(); AtomicInteger x = new AtomicInteger(0); AtomicReference<Throwable> r = new AtomicReference<Throwable>(); checkIncomplete(f); g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); f.complete(1); checkCompletedNormally(f, 1); assertEquals(x.get(), 1); assertNull(r.get()); }
Example 12
Source File: CompletableFutureTest.java From j2objc with Apache License 2.0 | 5 votes |
/** * minimalCompletionStage returns a CompletableFuture that is * completed exceptionally when source is. */ public void testMinimalCompletionStage2() { CompletableFuture<Integer> f = new CompletableFuture<>(); CompletionStage<Integer> g = f.minimalCompletionStage(); AtomicInteger x = new AtomicInteger(0); AtomicReference<Throwable> r = new AtomicReference<Throwable>(); g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);}); checkIncomplete(f); CFException ex = new CFException(); f.completeExceptionally(ex); checkCompletedExceptionally(f, ex); assertEquals(x.get(), 0); assertEquals(r.get().getCause(), ex); }