Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef INCLUDED_JVMACCESS_CLASSPATH_HXX
21 : #define INCLUDED_JVMACCESS_CLASSPATH_HXX
22 :
23 : #include <jvmaccess/jvmaccessdllapi.h>
24 : #include <sal/config.h>
25 : #include <com/sun/star/uno/Reference.hxx>
26 :
27 : #include "jni.h"
28 :
29 : namespace com { namespace sun { namespace star { namespace uno {
30 : class XComponentContext;
31 : } } } }
32 :
33 : namespace jvmaccess {
34 :
35 : /**
36 : Helper functions for class path handling.
37 : */
38 : class JVMACCESS_DLLPUBLIC ClassPath {
39 : public:
40 : /**
41 : translates a class path into a java.net.URL[] instance.
42 :
43 : @param context
44 : a component context; must not be null.
45 :
46 : @param environment
47 : a JNI environment; must not be null.
48 :
49 : @param classPath
50 : a list of zero or more internal (see the
51 : com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
52 : where any space characters (U+0020) are ignored (and, in particular,
53 : separate adjacent URI references). Any vnd.sun.star.expand URL
54 : references in the list are expanded using the
55 : com.sun.star.util.theMacroExpander singleton of the given context.
56 :
57 : @returns
58 : a local reference to a java.net.URL[] instance containing the external
59 : (see the com.sun.star.uri.ExternalUriReferenceTranslator service)
60 : equivalents of all the URI references in the given classPath. If null, a
61 : (still pending) JNI exception occurred.
62 :
63 : @throws com::sun::star::uno::RuntimeException
64 : */
65 : static inline ::jobjectArray
66 22 : translateToUrls(
67 : ::com::sun::star::uno::Reference<
68 : ::com::sun::star::uno::XComponentContext > const & context,
69 : ::JNIEnv * environment, OUString const & classPath)
70 : {
71 : return
72 : static_cast< ::jobjectArray >(
73 22 : doTranslateToUrls(context, environment, classPath));
74 : }
75 :
76 : /**
77 : loads a class via a java.net.URLClassLoader.
78 :
79 : @param context
80 : a component context; must not be null.
81 :
82 : @param environment
83 : a JNI environment; must not be null.
84 :
85 : @param classPath
86 : a list of zero or more internal (see the
87 : com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
88 : where any space characters (U+0020) are ignored (and, in particular,
89 : separate adjacent URI references). Any vnd.sun.star.expand URL
90 : references in the list are expanded using the
91 : com.sun.star.util.theMacroExpander singleton of the given context.
92 :
93 : @param name
94 : the Java binary name of the class to load.
95 :
96 : @returns
97 : a local reference to a java.lang.Class instance. If null, a (still
98 : pending) JNI exception occurred.
99 :
100 : @throws com::sun::star::uno::RuntimeException
101 : */
102 : static inline ::jclass loadClass(
103 : ::com::sun::star::uno::Reference<
104 : ::com::sun::star::uno::XComponentContext > const & context,
105 : ::JNIEnv * environment, OUString const & classPath,
106 : OUString const & name)
107 : {
108 : return
109 : static_cast< ::jclass >(
110 : doLoadClass(context, environment, classPath, name));
111 : }
112 :
113 : private:
114 : ClassPath(); // not defined
115 : ClassPath(ClassPath &); // not defined
116 : ~ClassPath(); // not defined
117 : void operator =(ClassPath &); // not defined
118 :
119 : // Functions that replace JNIEnv, jobjectArray, and jclass with void *, so
120 : // that their mangled C++ names do not depend on the JDK version used at
121 : // compile time:
122 :
123 : static void * doTranslateToUrls(
124 : ::com::sun::star::uno::Reference<
125 : ::com::sun::star::uno::XComponentContext > const & context,
126 : void * environment, OUString const & classPath);
127 :
128 : static void * doLoadClass(
129 : ::com::sun::star::uno::Reference<
130 : ::com::sun::star::uno::XComponentContext > const & context,
131 : void * environment, OUString const & classPath,
132 : OUString const & name);
133 : };
134 :
135 : }
136 :
137 : #endif
138 :
139 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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