/*
* 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);
}