LinkerServicesWithMissingMemberHandlerFactory.java revision 1645:15d52fdd9168 
1/*
2 * Copyright (c) 2015, 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
26package jdk.dynalink.beans;
27
28import java.lang.invoke.MethodHandle;
29import java.lang.invoke.MethodType;
30import java.util.function.Supplier;
31import jdk.dynalink.SecureLookupSupplier;
32import jdk.dynalink.linker.ConversionComparator.Comparison;
33import jdk.dynalink.linker.GuardedInvocation;
34import jdk.dynalink.linker.LinkRequest;
35import jdk.dynalink.linker.LinkerServices;
36
37final class LinkerServicesWithMissingMemberHandlerFactory implements LinkerServices {
38    final LinkerServices linkerServices;
39    final MissingMemberHandlerFactory missingMemberHandlerFactory;
40
41    static LinkerServices get(final LinkerServices linkerServices, final MissingMemberHandlerFactory missingMemberHandlerFactory) {
42        if (missingMemberHandlerFactory == null) {
43            return linkerServices;
44        }
45        return new LinkerServicesWithMissingMemberHandlerFactory(linkerServices, missingMemberHandlerFactory);
46    }
47
48    private LinkerServicesWithMissingMemberHandlerFactory(final LinkerServices linkerServices, final MissingMemberHandlerFactory missingMemberHandlerFactory) {
49        this.linkerServices = linkerServices;
50        this.missingMemberHandlerFactory = missingMemberHandlerFactory;
51    }
52
53    @Override
54    public MethodHandle asType(final MethodHandle handle, final MethodType fromType) {
55        return linkerServices.asType(handle, fromType);
56    }
57
58    @Override
59    public MethodHandle getTypeConverter(final Class<?> sourceType, final Class<?> targetType) {
60        return linkerServices.getTypeConverter(sourceType, targetType);
61    }
62
63    @Override
64    public boolean canConvert(final Class<?> from, final Class<?> to) {
65        return linkerServices.canConvert(from, to);
66    }
67
68    @Override
69    public GuardedInvocation getGuardedInvocation(final LinkRequest linkRequest) throws Exception {
70        return linkerServices.getGuardedInvocation(linkRequest);
71    }
72
73    @Override
74    public Comparison compareConversion(final Class<?> sourceType, final Class<?> targetType1, final Class<?> targetType2) {
75        return linkerServices.compareConversion(sourceType, targetType1, targetType2);
76    }
77
78    @Override
79    public MethodHandle filterInternalObjects(final MethodHandle target) {
80        return linkerServices.filterInternalObjects(target);
81    }
82
83    @Override
84    public <T> T getWithLookup(final Supplier<T> operation, final SecureLookupSupplier lookupSupplier) {
85        return linkerServices.getWithLookup(operation, lookupSupplier);
86    }
87}
88