Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.services/src/jdk/vm/ci/services/Services.java @ 23380:cd8fd4cced6c
added JVMCIPermission (JDK-8155023)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Mon, 09 May 2016 16:34:20 +0200 |
parents | 5aa3b3a72e35 |
children | f84a5ac3be22 |
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 */ |
22761
f2206f5bb62e
removed @ServiceProvider mechanism (GRAAL-1380)
Doug Simon <doug.simon@oracle.com>
parents:
22672
diff
changeset
|
23 package jdk.vm.ci.services; |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
24 |
22569
ec96f33a101d
updated imports to be explicit and added checkstyle rule to forbid * imports
Doug Simon <doug.simon@oracle.com>
parents:
22430
diff
changeset
|
25 import java.util.Arrays; |
ec96f33a101d
updated imports to be explicit and added checkstyle rule to forbid * imports
Doug Simon <doug.simon@oracle.com>
parents:
22430
diff
changeset
|
26 import java.util.Collections; |
ec96f33a101d
updated imports to be explicit and added checkstyle rule to forbid * imports
Doug Simon <doug.simon@oracle.com>
parents:
22430
diff
changeset
|
27 import java.util.Formatter; |
ec96f33a101d
updated imports to be explicit and added checkstyle rule to forbid * imports
Doug Simon <doug.simon@oracle.com>
parents:
22430
diff
changeset
|
28 import java.util.List; |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
29 |
22569
ec96f33a101d
updated imports to be explicit and added checkstyle rule to forbid * imports
Doug Simon <doug.simon@oracle.com>
parents:
22430
diff
changeset
|
30 import sun.reflect.Reflection; |
21607
71b338926f2e
moved JVMCI classes into their own distributions (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21604
diff
changeset
|
31 |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
32 /** |
21937
3a292e8b9e51
replaced Service marker interface with non-standard META-INF directory names to differentiate JVMCI providers from standard service providers
Doug Simon <doug.simon@oracle.com>
parents:
21895
diff
changeset
|
33 * An mechanism for accessing service providers via JVMCI. These providers are loaded via a JVMCI |
3a292e8b9e51
replaced Service marker interface with non-standard META-INF directory names to differentiate JVMCI providers from standard service providers
Doug Simon <doug.simon@oracle.com>
parents:
21895
diff
changeset
|
34 * class loader that is hidden from application code. Hence the {@link SecurityManager} checks in |
3a292e8b9e51
replaced Service marker interface with non-standard META-INF directory names to differentiate JVMCI providers from standard service providers
Doug Simon <doug.simon@oracle.com>
parents:
21895
diff
changeset
|
35 * {@link #load(Class)} and {@link #loadSingle(Class, boolean)}. |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
36 */ |
21941
ef76ce87cc13
Services cannot be sub-classes or instantiated
Doug Simon <doug.simon@oracle.com>
parents:
21937
diff
changeset
|
37 public final class Services { |
ef76ce87cc13
Services cannot be sub-classes or instantiated
Doug Simon <doug.simon@oracle.com>
parents:
21937
diff
changeset
|
38 |
ef76ce87cc13
Services cannot be sub-classes or instantiated
Doug Simon <doug.simon@oracle.com>
parents:
21937
diff
changeset
|
39 private Services() { |
ef76ce87cc13
Services cannot be sub-classes or instantiated
Doug Simon <doug.simon@oracle.com>
parents:
21937
diff
changeset
|
40 } |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
41 |
21799
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
42 private static final String SUPPRESS_PROPERTY_NAME = "jvmci.service.suppressNoClassDefFoundError"; |
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
43 |
21675
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
44 /** |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
45 * Determines whether to suppress the {@link NoClassDefFoundError} raised if a service provider |
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
46 * class specified in a {@code <jre>/jvmci/services/*} file is missing. |
21675
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
47 */ |
21799
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
48 private static final boolean SuppressNoClassDefFoundError = Boolean.getBoolean(SUPPRESS_PROPERTY_NAME); |
21675
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
49 |
21887
543f150e7fa0
com.oracle.jvmci.service.Service is now a marker for service implementations available via JVMCI; removed Truffle -> JVMCI dependency
Doug Simon <doug.simon@oracle.com>
parents:
21799
diff
changeset
|
50 private static final ClassValue<List<?>> cache = new ClassValue<List<?>>() { |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
51 @Override |
21887
543f150e7fa0
com.oracle.jvmci.service.Service is now a marker for service implementations available via JVMCI; removed Truffle -> JVMCI dependency
Doug Simon <doug.simon@oracle.com>
parents:
21799
diff
changeset
|
52 protected List<?> computeValue(Class<?> type) { |
21675
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
53 try { |
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
54 return Arrays.asList(getServiceImpls(type)); |
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
55 } catch (NoClassDefFoundError e) { |
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
56 if (SuppressNoClassDefFoundError) { |
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
57 return Collections.emptyList(); |
21799
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
58 } else { |
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
59 NoClassDefFoundError newEx = new NoClassDefFoundError(e.getMessage() + " (suppress with -D" + SUPPRESS_PROPERTY_NAME + "=true)"); |
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
60 if (e.getCause() != null) { |
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
61 newEx.initCause(e.getCause()); |
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
62 } |
10f28849c1ec
improve error message when JVMCI services are not found
Doug Simon <doug.simon@oracle.com>
parents:
21798
diff
changeset
|
63 throw newEx; |
21675
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
64 } |
2e8c01def9a5
moved [AMD64|SPARC]HotSpotJVMCIBackendFactory into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21662
diff
changeset
|
65 } |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
66 } |
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
67 }; |
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
68 |
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
69 /** |
23369
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
70 * Performs any required security checks and dynamic reconfiguration to allow the module of a |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
71 * given class to access the classes in the JVMCI module. |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
72 * |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
73 * Note: This API exists to provide backwards compatibility for JVMCI clients compiled against a |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
74 * JDK release earlier than 9. |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
75 * |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
76 * @param requestor a class requesting access to the JVMCI module for its module |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
77 * @throws SecurityException if a security manager is present and it denies |
23380
cd8fd4cced6c
added JVMCIPermission (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23369
diff
changeset
|
78 * {@link JVMCIPermission} |
23369
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
79 */ |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
80 public static void exportJVMCITo(Class<?> requestor) { |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
81 // There are no modules in JVMCI-8. |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
82 } |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
83 |
5aa3b3a72e35
jdk.vm.ci needs to securely export services (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23359
diff
changeset
|
84 /** |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
85 * Gets an {@link Iterable} of the JVMCI providers available for a given service. |
21636
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
86 * |
23297
4b58c92e939b
remove redundant modifiers
Manuel Rigger <rigger.manuel@gmail.com>
parents:
22761
diff
changeset
|
87 * @throws SecurityException if a security manager is present and it denies <tt> |
23359
9779df770504
align the permission checked by Services with jvmci-9
Doug Simon <doug.simon@oracle.com>
parents:
23297
diff
changeset
|
88 * {@link RuntimePermission}("jvmci")</tt> |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
89 */ |
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
90 @SuppressWarnings("unchecked") |
21887
543f150e7fa0
com.oracle.jvmci.service.Service is now a marker for service implementations available via JVMCI; removed Truffle -> JVMCI dependency
Doug Simon <doug.simon@oracle.com>
parents:
21799
diff
changeset
|
91 public static <S> Iterable<S> load(Class<S> service) { |
21636
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
92 SecurityManager sm = System.getSecurityManager(); |
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
93 if (sm != null) { |
23380
cd8fd4cced6c
added JVMCIPermission (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23369
diff
changeset
|
94 sm.checkPermission(new JVMCIPermission()); |
21636
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
95 } |
21760
55058b8000ea
updated javadoc to document that JVMCI services are disjoint from the standard service loading mechanism and tightened generic type constraint such that Services and @ServiceProcessor can only be used with classes implementing Service
Doug Simon <doug.simon@oracle.com>
parents:
21675
diff
changeset
|
96 try { |
55058b8000ea
updated javadoc to document that JVMCI services are disjoint from the standard service loading mechanism and tightened generic type constraint such that Services and @ServiceProcessor can only be used with classes implementing Service
Doug Simon <doug.simon@oracle.com>
parents:
21675
diff
changeset
|
97 return (Iterable<S>) cache.get(service); |
55058b8000ea
updated javadoc to document that JVMCI services are disjoint from the standard service loading mechanism and tightened generic type constraint such that Services and @ServiceProcessor can only be used with classes implementing Service
Doug Simon <doug.simon@oracle.com>
parents:
21675
diff
changeset
|
98 } catch (UnsatisfiedLinkError e) { |
55058b8000ea
updated javadoc to document that JVMCI services are disjoint from the standard service loading mechanism and tightened generic type constraint such that Services and @ServiceProcessor can only be used with classes implementing Service
Doug Simon <doug.simon@oracle.com>
parents:
21675
diff
changeset
|
99 return Collections.emptyList(); |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
100 } |
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
101 } |
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
102 |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
103 /** |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
104 * Gets the JVMCI provider for a given service for which at most one provider must be available. |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
105 * |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
106 * @param service the service whose provider is being requested |
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
107 * @param required specifies if an {@link InternalError} should be thrown if no provider of |
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
108 * {@code service} is available |
23297
4b58c92e939b
remove redundant modifiers
Manuel Rigger <rigger.manuel@gmail.com>
parents:
22761
diff
changeset
|
109 * @throws SecurityException if a security manager is present and it denies <tt> |
23359
9779df770504
align the permission checked by Services with jvmci-9
Doug Simon <doug.simon@oracle.com>
parents:
23297
diff
changeset
|
110 * {@link RuntimePermission}("jvmci")</tt> |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
111 */ |
21887
543f150e7fa0
com.oracle.jvmci.service.Service is now a marker for service implementations available via JVMCI; removed Truffle -> JVMCI dependency
Doug Simon <doug.simon@oracle.com>
parents:
21799
diff
changeset
|
112 @SuppressWarnings({"unchecked"}) |
543f150e7fa0
com.oracle.jvmci.service.Service is now a marker for service implementations available via JVMCI; removed Truffle -> JVMCI dependency
Doug Simon <doug.simon@oracle.com>
parents:
21799
diff
changeset
|
113 public static <S> S loadSingle(Class<S> service, boolean required) { |
21636
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
114 SecurityManager sm = System.getSecurityManager(); |
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
115 if (sm != null) { |
23380
cd8fd4cced6c
added JVMCIPermission (JDK-8155023)
Doug Simon <doug.simon@oracle.com>
parents:
23369
diff
changeset
|
116 sm.checkPermission(new JVMCIPermission()); |
21636
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
117 } |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
118 Iterable<S> providers; |
21760
55058b8000ea
updated javadoc to document that JVMCI services are disjoint from the standard service loading mechanism and tightened generic type constraint such that Services and @ServiceProcessor can only be used with classes implementing Service
Doug Simon <doug.simon@oracle.com>
parents:
21675
diff
changeset
|
119 try { |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
120 providers = (Iterable<S>) cache.get(service); |
21760
55058b8000ea
updated javadoc to document that JVMCI services are disjoint from the standard service loading mechanism and tightened generic type constraint such that Services and @ServiceProcessor can only be used with classes implementing Service
Doug Simon <doug.simon@oracle.com>
parents:
21675
diff
changeset
|
121 } catch (UnsatisfiedLinkError e) { |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
122 providers = Collections.emptyList(); |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
123 } |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
124 |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
125 S singleProvider = null; |
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
126 for (S provider : providers) { |
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
127 if (singleProvider != null) { |
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
128 throw new InternalError(String.format("Multiple %s providers found: %s, %s", service.getName(), singleProvider.getClass().getName(), provider.getClass().getName())); |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
129 } |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
130 singleProvider = provider; |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
131 } |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
132 if (singleProvider == null && required) { |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
133 String javaHome = System.getProperty("java.home"); |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
134 String vmName = System.getProperty("java.vm.name"); |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
135 Formatter errorMessage = new Formatter(); |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
136 errorMessage.format("The VM does not expose required service %s.%n", service.getName()); |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
137 errorMessage.format("Currently used Java home directory is %s.%n", javaHome); |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
138 errorMessage.format("Currently used VM configuration is: %s", vmName); |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
139 throw new UnsupportedOperationException(errorMessage.toString()); |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
140 } |
21895
763db13bd6f4
reworded Service documentation to be interms of "providers" instead of "implementations" to better match documentation for the standard ServiceLoader mechanism
Doug Simon <doug.simon@oracle.com>
parents:
21887
diff
changeset
|
141 return singleProvider; |
21614
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
142 } |
2f92172fa320
Truffle and NFI implementations are now accessed via JVMCI services instead of being hard coded in the VM (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21607
diff
changeset
|
143 |
21636
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
144 static { |
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
145 Reflection.registerMethodsToFilter(Services.class, "getServiceImpls"); |
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
146 Reflection.registerFieldsToFilter(Services.class, "cache"); |
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
147 } |
6d9c8d0d0f7c
added SecurityManager checks and field/method reflection hiding (JBS:GRAAL-51)
Doug Simon <doug.simon@oracle.com>
parents:
21633
diff
changeset
|
148 |
15916
6aa352b260f4
removed use of ServiceLoader in runtime initialization
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
149 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
|
150 } |