Mercurial > hg > truffle

comparison mx/FilterTypes.java @ 21613:60154926b513

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
replaced use of javap with a small Java utility for refining service class list to only those implementing com.oracle.jvmci.service.Service
author Doug Simon <doug.simon@oracle.com>
date Sun, 31 May 2015 12:32:15 +0200
parents
children b311a60991da
comparison
equal deleted inserted replaced
21612:f2a6088ddebc 21613:60154926b513
1 /*
2 * Copyright (c) 2015, 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 */
23
24 public class FilterTypes {
25
26 /**
27 * Prints to {@link System#out} the values in {@code args[1 .. N]} that denote classes that are
28 * {@link Class#isAssignableFrom(Class) assignable} to the type denoted in {@code args[0]}. The
29 * values are separated by {@code "|"}.
30 */
31 public static void main(String... args) throws Exception {
32 Class<?> jvmciServiceInterface = Class.forName(args[0]);
33 boolean needSep = false;
34 StringBuilder buf = new StringBuilder();
35 for (int i = 1; i < args.length; ++i) {
36 String serviceName = args[i];
37 Class<?> service = Class.forName(serviceName, false, FilterTypes.class.getClassLoader());
38 if (jvmciServiceInterface.isAssignableFrom(service)) {
39 if (buf.length() != 0) {
40 buf.append('|');
41 }
42 buf.append(serviceName);
43 needSep = true;
44 }
45 }
46 System.out.print(buf);
47 }
48 }