1/*
2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package java.util.stream;
24
25import java.util.EnumSet;
26
27public class StreamOpFlagTestHelper {
28
29    /** EnumSet containing stream flags */
30    private static final EnumSet<StreamOpFlag> allStreamFlags;
31
32    static {
33        allStreamFlags = EnumSet.allOf(StreamOpFlag.class);
34        for (StreamOpFlag f : EnumSet.allOf(StreamOpFlag.class))
35            if (!f.isStreamFlag())
36                allStreamFlags.remove(f);
37    }
38
39
40    static EnumSet<StreamOpFlag> allStreamFlags() {
41        // EnumSet is mutable
42        return allStreamFlags.clone();
43    }
44
45    public static boolean isStreamOrdered(Stream<?> s) {
46        return StreamOpFlag.ORDERED.isKnown(OpTestCase.getStreamFlags(s));
47    }
48}
49