1 /*

     2  * Copyright (c) 2014, 2016, 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.  Oracle designates this

     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.misc;

    27 

    28 import java.lang.module.ModuleDescriptor;

    29 import java.lang.reflect.Layer;

    30 import java.lang.reflect.Module;

    31 import java.net.URI;

    32 import java.util.stream.Stream;

    33 

    34 import jdk.internal.module.ServicesCatalog;

    35 

    36 /**

    37  * Provides access to non-public methods in java.lang.reflect.Module

    38  */

    39 

    40 public interface JavaLangReflectModuleAccess {

    41 

    42     /**

    43      * Defines the unnamed module for the given class loader.

    44      */

    45     Module defineUnnamedModule(ClassLoader loader);

    46 

    47     /**

    48      * Defines a new module to the Java virtual machine. The module

    49      * is defined to the given class loader.

    50      *

    51      * The URI is for information purposes only, it can be {@code null}.

    52      */

    53     Module defineModule(ClassLoader loader, ModuleDescriptor descriptor, URI uri);

    54 

    55     /**

    56      * Updates the readability so that module m1 reads m2. The new read edge

    57      * does not result in a strong reference to m2 (m2 can be GC'ed).

    58      *

    59      * This method is the same as m1.addReads(m2) but without a permission check.

    60      */

    61     void addReads(Module m1, Module m2);

    62 

    63     /**

    64      * Updates module m to read all unnamed modules.

    65      */

    66     void addReadsAllUnnamed(Module m);

    67 

    68     /**

    69      * Update module m to export a package to all modules.

    70      */

    71     void addExports(Module m, String pn);

    72 

    73     /**

    74      * Updates module m1 to export a package to module m2. The export does

    75      * not result in a strong reference to m2 (m2 can be GC'ed).

    76      */

    77     void addExports(Module m1, String pkg, Module m2);

    78 

    79     /**

    80      * Updates a module m to export a package to all unnamed modules.

    81      */

    82     void addExportsToAllUnnamed(Module m, String pkg);

    83 

    84     /**

    85      * Updates a module m to open a package to all modules.

    86      */

    87     void addOpens(Module m, String pkg);

    88 

    89     /**

    90      * Updates module m1 to open a package to module m2. Opening the

    91      * package does not result in a strong reference to m2 (m2 can be GC'ed).

    92      */

    93     void addOpens(Module m1, String pkg, Module m2);

    94 

    95     /**

    96      * Updates a module m to open a package to all unnamed modules.

    97      */

    98     void addOpensToAllUnnamed(Module m, String pkg);

    99 

   100     /**

   101      * Updates a module m to use a service.

   102      */

   103     void addUses(Module m, Class<?> service);

   104 

   105     /**

   106      * Returns the ServicesCatalog for the given Layer.

   107      */

   108     ServicesCatalog getServicesCatalog(Layer layer);

   109 

   110     /**

   111      * Returns an ordered stream of layers. The first element is is the

   112      * given layer, the remaining elements are its parents, in DFS order.

   113      */

   114     Stream<Layer> layers(Layer layer);

   115 

   116     /**

   117      * Returns a stream of the layers that have modules defined to the

   118      * given class loader.

   119      */

   120     Stream<Layer> layers(ClassLoader loader);

   121 }