J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | // |
| 25 | |
| 26 | import java.io.*; |
| 27 | import java.util.*; |
| 28 | |
| 29 | |
| 30 | public class Load { |
| 31 | |
| 32 | private static PrintStream out = System.err; |
| 33 | |
| 34 | public static void main(String[] args) throws Exception { |
| 35 | |
| 36 | boolean installedOnly = false; |
| 37 | |
| 38 | List<String> expected = new ArrayList<String>(Arrays.asList(args)); |
| 39 | if (!expected.isEmpty() && expected.get(0).equals("-i")) { |
| 40 | expected.remove(0); |
| 41 | installedOnly = true; |
| 42 | } |
| 43 | if (expected.isEmpty()) |
| 44 | throw new Exception("usage: Load [-i] ( fail | provider-class-name )*"); |
| 45 | |
| 46 | ServiceLoader<FooService> sl = (installedOnly |
| 47 | ? ServiceLoader.loadInstalled(FooService.class) |
| 48 | : ServiceLoader.load(FooService.class)); |
| 49 | out.format("%s%n", sl); |
| 50 | Iterator<FooService> sli = sl.iterator(); |
| 51 | Iterator<String> ei = expected.iterator(); |
| 52 | |
| 53 | for (;; ei.remove()) { |
| 54 | FooService fp = null; |
| 55 | try { |
| 56 | if (!sli.hasNext()) |
| 57 | break; |
| 58 | fp = sli.next(); |
| 59 | } catch (ServiceConfigurationError x) { |
| 60 | if (ei.next().equals("fail")) { |
| 61 | out.format("Failed as expected: %s%n", x); |
| 62 | continue; |
| 63 | } |
| 64 | throw x; |
| 65 | } |
| 66 | String ec = ei.next(); |
| 67 | if (!fp.getClass().getName().equals(ec)) |
| 68 | throw new |
| 69 | Exception(String.format("Wrong provider %s; expected %s", |
| 70 | fp.getClass().getName(), ec)); |
| 71 | out.format("Provider found: %s%n", fp.getClass().getName()); |
| 72 | } |
| 73 | |
| 74 | if (ei.hasNext()) |
| 75 | throw new Exception("Missing providers: " + expected); |
| 76 | |
| 77 | } |
| 78 | |
| 79 | } |