/*
* Copyright (c) 2005, 2006, 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.
*/
//
import java.io.*;
import java.util.*;
public class Basic {
private static PrintStream out = System.err;
private static <T> Set<T> setOf(Iterable<T> it) {
Set<T> s = new HashSet<T>();
for (T t : it)
s.add(t);
return s;
}
private static <T> void checkEquals(Set<T> s1, Set<T> s2, boolean eq) {
if (s1.equals(s2) != eq)
throw new RuntimeException(String.format("%b %s : %s",
eq, s1, s2));
}
public static void main(String[] args) {
ServiceLoader<FooService> sl = ServiceLoader.load(FooService.class);
out.format("%s%n", sl);
// Providers are cached
Set<FooService> ps = setOf(sl);
checkEquals(ps, setOf(sl), true);
// The cache can be flushed and reloaded
sl.reload();
checkEquals(ps, setOf(sl), false);
}
}