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.loader;
27
28 import java.lang.module.Configuration;
29 import java.lang.module.ResolvedModule;
30 import java.util.HashMap;
31 import java.util.List;
32 import java.util.Map;
33 import java.util.stream.Stream;
34
35 /**
36 * A pool of class loaders.
37 *
38 * @see ModuleLayer#defineModulesWithManyLoaders
39 */
40
41 public final class LoaderPool {
42
43 // maps module names to class loaders
44 private final Map<String, Loader> loaders;
45
46
47 /**
48 * Creates a pool of class loaders. Each module in the given configuration
49 * will be loaded its own class loader in the pool. The class loader is
50 * created with the given parent class loader as its parent.
51 */
52 public LoaderPool(Configuration cf,
53 List<ModuleLayer> parentLayers,
54 ClassLoader parentLoader)
55 {
56 Map<String, Loader> loaders = new HashMap<>();
57 for (ResolvedModule resolvedModule : cf.modules()) {
58 Loader loader = new Loader(resolvedModule, this, parentLoader);
59 String mn = resolvedModule.name();
60 loaders.put(mn, loader);
61 }
62 this.loaders = loaders;
63
66 }
67
68
69 /**
70 * Returns the class loader for the named module
71 */
72 public Loader loaderFor(String name) {
73 Loader loader = loaders.get(name);
74 assert loader != null;
75 return loader;
76 }
77
78 /**
79 * Returns a stream of the loaders in this pool.
80 */
81 public Stream<Loader> loaders() {
82 return loaders.values().stream();
83 }
84
85 }
86
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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.loader;
27
28 import java.lang.module.Configuration;
29 import java.lang.module.ResolvedModule;
30 import java.util.HashMap;
31 import java.util.List;
32 import java.util.Map;
33 import java.util.stream.Stream;
34
35 /**
36 * A pool of class loaders.
37 *
38 * @see ModuleLayer#defineModulesWithManyLoaders
39 */
40 public final class LoaderPool {
41
42 /** Maps module names to class loaders. */
43 private final Map<String, Loader> loaders;
44
45
46 /**
47 * Creates a pool of class loaders. Each module in the given configuration
48 * will be loaded its own class loader in the pool. The class loader is
49 * created with the given parent class loader as its parent.
50 */
51 public LoaderPool(Configuration cf,
52 List<ModuleLayer> parentLayers,
53 ClassLoader parentLoader)
54 {
55 Map<String, Loader> loaders = new HashMap<>();
56 for (ResolvedModule resolvedModule : cf.modules()) {
57 Loader loader = new Loader(resolvedModule, this, parentLoader);
58 String mn = resolvedModule.name();
59 loaders.put(mn, loader);
60 }
61 this.loaders = loaders;
62
65 }
66
67
68 /**
69 * Returns the class loader for the named module
70 */
71 public Loader loaderFor(String name) {
72 Loader loader = loaders.get(name);
73 assert loader != null;
74 return loader;
75 }
76
77 /**
78 * Returns a stream of the loaders in this pool.
79 */
80 public Stream<Loader> loaders() {
81 return loaders.values().stream();
82 }
83
84 }
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