8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.internal.module;
27
28 import java.lang.module.ModuleFinder;
29 import java.util.Objects;
30 import jdk.internal.misc.VM;
31
32 /**
33 * Used by ModuleBootstrap to obtain the archived system modules and finder.
34 */
35 final class ArchivedModuleGraph {
36 private static String archivedMainModule;
37 private static SystemModules archivedSystemModules;
38 private static ModuleFinder archivedModuleFinder;
39
40 private final SystemModules systemModules;
41 private final ModuleFinder finder;
42
43 private ArchivedModuleGraph(SystemModules modules, ModuleFinder finder) {
44 this.systemModules = modules;
45 this.finder = finder;
46 }
47
48 SystemModules systemModules() {
49 return systemModules;
50 }
51
52 ModuleFinder finder() {
53 return finder;
54 }
55
56 // A factory method that ModuleBootstrap can use to obtain the
57 // ArchivedModuleGraph.
58 static ArchivedModuleGraph get(String mainModule) {
59 if (Objects.equals(mainModule, archivedMainModule)
60 && archivedSystemModules != null
61 && archivedModuleFinder != null) {
62 return new ArchivedModuleGraph(archivedSystemModules,
63 archivedModuleFinder);
64 } else {
65 return null;
66 }
67 }
68
69 // Used at CDS dump time
70 static void archive(String mainModule, SystemModules systemModules,
71 ModuleFinder finder) {
72 if (archivedMainModule != null)
73 throw new UnsupportedOperationException();
74 archivedMainModule = mainModule;
75 archivedSystemModules = systemModules;
76 archivedModuleFinder = finder;
77 }
78
79 static {
80 VM.initializeFromArchive(ArchivedModuleGraph.class);
81 }
82 }
|
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.internal.module;
27
28 import java.lang.module.Configuration;
29 import java.lang.module.ModuleFinder;
30 import java.util.Objects;
31 import jdk.internal.misc.VM;
32
33 /**
34 * Used by ModuleBootstrap to obtain the archived system modules and finder.
35 */
36 final class ArchivedModuleGraph {
37 private static String archivedMainModule;
38 private static SystemModules archivedSystemModules;
39 private static ModuleFinder archivedModuleFinder;
40 private static Configuration archivedConfiguration;
41
42 private final SystemModules systemModules;
43 private final ModuleFinder finder;
44 private final Configuration configuration;
45
46 private ArchivedModuleGraph(SystemModules modules,
47 ModuleFinder finder,
48 Configuration configuration) {
49 this.systemModules = modules;
50 this.finder = finder;
51 this.configuration = configuration;
52 }
53
54 SystemModules systemModules() {
55 return systemModules;
56 }
57
58 ModuleFinder finder() {
59 return finder;
60 }
61
62 Configuration configuration() {
63 return configuration;
64 }
65
66 // A factory method that ModuleBootstrap can use to obtain the
67 // ArchivedModuleGraph.
68 static ArchivedModuleGraph get(String mainModule) {
69 if (Objects.equals(mainModule, archivedMainModule)
70 && archivedSystemModules != null
71 && archivedModuleFinder != null
72 && archivedConfiguration != null) {
73 return new ArchivedModuleGraph(archivedSystemModules,
74 archivedModuleFinder,
75 archivedConfiguration);
76 } else {
77 return null;
78 }
79 }
80
81 // Used at CDS dump time
82 static void archive(String mainModule,
83 SystemModules systemModules,
84 ModuleFinder finder,
85 Configuration configuration) {
86 if (archivedMainModule != null)
87 throw new UnsupportedOperationException();
88 archivedMainModule = mainModule;
89 archivedSystemModules = systemModules;
90 archivedModuleFinder = finder;
91 archivedConfiguration = configuration;
92 }
93
94 static {
95 VM.initializeFromArchive(ArchivedModuleGraph.class);
96 }
97 }
|