--- a/src/java.net.http/share/classes/java/net/http/internal/common/MinimalFuture.java Wed Feb 07 15:46:30 2018 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,110 +0,0 @@
-/*
- * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package java.net.http.internal.common;
-
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.CompletionStage;
-import java.util.concurrent.atomic.AtomicLong;
-
-import static java.util.Objects.requireNonNull;
-
-/*
- * A CompletableFuture which does not allow any obtrusion logic.
- * All methods of CompletionStage return instances of this class.
- */
-public final class MinimalFuture<T> extends CompletableFuture<T> {
-
- @FunctionalInterface
- public interface ExceptionalSupplier<U> {
- U get() throws Throwable;
- }
-
- private final static AtomicLong TOKENS = new AtomicLong();
- private final long id;
-
- public static <U> MinimalFuture<U> completedFuture(U value) {
- MinimalFuture<U> f = new MinimalFuture<>();
- f.complete(value);
- return f;
- }
-
- public static <U> CompletableFuture<U> failedFuture(Throwable ex) {
- requireNonNull(ex);
- MinimalFuture<U> f = new MinimalFuture<>();
- f.completeExceptionally(ex);
- return f;
- }
-
- public static <U> CompletableFuture<U> supply(ExceptionalSupplier<U> supplier) {
- CompletableFuture<U> cf = new MinimalFuture<>();
- try {
- U value = supplier.get();
- cf.complete(value);
- } catch (Throwable t) {
- cf.completeExceptionally(t);
- }
- return cf;
- }
-
- public MinimalFuture() {
- super();
- this.id = TOKENS.incrementAndGet();
- }
-
- @Override
- public <U> MinimalFuture<U> newIncompleteFuture() {
- return new MinimalFuture<>();
- }
-
- @Override
- public void obtrudeValue(T value) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public void obtrudeException(Throwable ex) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public String toString() {
- return super.toString() + " (id=" + id +")";
- }
-
- public static <U> MinimalFuture<U> of(CompletionStage<U> stage) {
- MinimalFuture<U> cf = new MinimalFuture<>();
- stage.whenComplete((r,t) -> complete(cf, r, t));
- return cf;
- }
-
- private static <U> void complete(CompletableFuture<U> cf, U result, Throwable t) {
- if (t == null) {
- cf.complete(result);
- } else {
- cf.completeExceptionally(t);
- }
- }
-}