Mercurial > hg > graal-compiler

annotate graal/com.oracle.jvmci.runtime/src/com/oracle/jvmci/runtime/Services.java @ 21551:5324104ac4f3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
parents c1e2fdb5fea3
children d563baeca9df
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
15916
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
1 /*
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
4 *
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
7 * published by the Free Software Foundation.
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
8 *
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
13 * accompanied this code).
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
14 *
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
18 *
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
21 * questions.
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
22 */
21538
c1e2fdb5fea3 removed more dependencies from JVMCI classes to non-JVMCI classes (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 19049
diff changeset
23 package com.oracle.jvmci.runtime;
15916
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
24
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
25 import static java.lang.String.*;
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
26
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
27 import java.util.*;
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
28
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
29 /**
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
30 * A mechanism on top of the standard {@link ServiceLoader} that enables a runtime to efficiently
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
31 * load services marked by {@link Service}. This may be important for services loaded early in the
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
32 * runtime initialization process.
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
33 */
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
34 public class Services {
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
35
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
36 private static final ClassValue<List<Service>> cache = new ClassValue<List<Service>>() {
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
37 @Override
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
38 protected List<Service> computeValue(Class<?> type) {
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
39 Service[] names = getServiceImpls(type);
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
40 if (names == null || names.length == 0) {
19049
c198e397bb59 improved error message when Service loading fails
Doug Simon <doug.simon@oracle.com>
parents: 16732
diff changeset
41 throw new InternalError(
c198e397bb59 improved error message when Service loading fails
Doug Simon <doug.simon@oracle.com>
parents: 16732
diff changeset
42 format("No implementations for %s found (ensure %s extends %s and that in suite.py the \"annotationProcessors\" attribute for the project enclosing %s includes \"com.oracle.graal.service.processor\")",
c198e397bb59 improved error message when Service loading fails
Doug Simon <doug.simon@oracle.com>
parents: 16732
diff changeset
43 type.getSimpleName(), type.getSimpleName(), Service.class, type.getSimpleName()));
15916
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
44 }
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
45 return Arrays.asList(names);
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
46 }
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
47 };
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
48
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
49 /**
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
50 * Gets an {@link Iterable} of the implementations available for a given service.
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
51 */
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
52 @SuppressWarnings("unchecked")
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
53 public static <S> Iterable<S> load(Class<S> service) {
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
54 if (Service.class.isAssignableFrom(service)) {
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
55 try {
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
56 return (Iterable<S>) cache.get(service);
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
57 } catch (UnsatisfiedLinkError e) {
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
58 // Fall back to standard SerivceLoader
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
59 }
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
60 }
16732
c958f16fd52f use correct class loader when looking up services
Doug Simon <doug.simon@oracle.com>
parents: 15916
diff changeset
61 return ServiceLoader.load(service, Services.class.getClassLoader());
15916
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
62 }
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
63
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
64 private static native <S> S[] getServiceImpls(Class<?> service);
6aa352b260f4 removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
65 }