| /* |
| * Copyright (c) 2013, 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. |
| * |
| * 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.util.stream; |
| |
| /** |
| * The base type of a stateless test operation |
| */ |
| interface StatelessTestOp<E_IN, E_OUT> extends IntermediateTestOp<E_IN, E_OUT> { |
| |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| public static<T> AbstractPipeline chain(AbstractPipeline upstream, |
| StatelessTestOp<?, T> op) { |
| int flags = op.opGetFlags(); |
| switch (op.outputShape()) { |
| case REFERENCE: |
| return new ReferencePipeline.StatelessOp<Object, T>(upstream, op.inputShape(), flags) { |
| public Sink opWrapSink(int flags, Sink<T> sink) { |
| return op.opWrapSink(flags, isParallel(), sink); |
| } |
| }; |
| case INT_VALUE: |
| return new IntPipeline.StatelessOp<Object>(upstream, op.inputShape(), flags) { |
| public Sink opWrapSink(int flags, Sink sink) { |
| return op.opWrapSink(flags, isParallel(), sink); |
| } |
| }; |
| case LONG_VALUE: |
| return new LongPipeline.StatelessOp<Object>(upstream, op.inputShape(), flags) { |
| @Override |
| Sink opWrapSink(int flags, Sink sink) { |
| return op.opWrapSink(flags, isParallel(), sink); |
| } |
| }; |
| case DOUBLE_VALUE: |
| return new DoublePipeline.StatelessOp<Object>(upstream, op.inputShape(), flags) { |
| @Override |
| Sink opWrapSink(int flags, Sink sink) { |
| return op.opWrapSink(flags, isParallel(), sink); |
| } |
| }; |
| default: throw new IllegalStateException(op.outputShape().toString()); |
| } |
| } |
| |
| default StreamShape inputShape() { return StreamShape.REFERENCE; } |
| |
| default StreamShape outputShape() { return StreamShape.REFERENCE; } |
| |
| default int opGetFlags() { return 0; } |
| |
| Sink<E_IN> opWrapSink(int flags, boolean parallel, Sink<E_OUT> sink); |
| } |
| |