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/*
* Copyright (c) 2012, 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
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*/
package org.openjdk.testlib.java.util.stream;
import java.util.stream.AbstractPipeline;
/**
* A base type for test operations
*/
interface IntermediateTestOp<E_IN, E_OUT> {
@SuppressWarnings({"rawtypes", "unchecked"})
public static<T> AbstractPipeline chain(AbstractPipeline upstream,
IntermediateTestOp<?, T> op) {
if (op instanceof StatelessTestOp)
return StatelessTestOp.chain(upstream, (StatelessTestOp) op);
if (op instanceof StatefulTestOp)
return StatefulTestOp.chain(upstream, (StatefulTestOp) op);
throw new IllegalStateException("Unknown test op type: " + op.getClass().getName());
}
}