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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 "jvmaccessdllapi.h"
24 : #include "sal/config.h"
25 : #include "com/sun/star/uno/Reference.hxx"
26 :
27 : #if defined SOLAR_JAVA
28 : #include "jni.h"
29 : #else
30 : struct JNIEnv;
31 : typedef void * jclass;
32 : typedef void * jobjectArray;
33 : #endif
34 :
35 : namespace com { namespace sun { namespace star { namespace uno {
36 : class XComponentContext;
37 : } } } }
38 : namespace rtl { class OUString; }
39 :
40 : namespace jvmaccess {
41 :
42 : /**
43 : Helper functions for class path handling.
44 : */
45 : class JVMACCESS_DLLPUBLIC ClassPath {
46 : public:
47 : /**
48 : translates a class path into a java.net.URL[] instance.
49 :
50 : @param context
51 : a component context; must not be null.
52 :
53 : @param environment
54 : a JNI environment; must not be null.
55 :
56 : @param classPath
57 : a list of zero or more internal (see the
58 : com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
59 : where any space characters (U+0020) are ignored (and, in particular,
60 : separate adjacent URI references). Any vnd.sun.star.expand URL
61 : references in the list are expanded using the
62 : com.sun.star.util.theMacroExpander singleton of the given context.
63 :
64 : @returns
65 : a local reference to a java.net.URL[] instance containing the external
66 : (see the com.sun.star.uri.ExternalUriReferenceTranslator service)
67 : equivalents of all the URI references in the given classPath. If null, a
68 : (still pending) JNI exception occurred.
69 :
70 : @throws com::sun::star::uno::RuntimeException
71 : */
72 : static inline ::jobjectArray
73 0 : translateToUrls(
74 : ::com::sun::star::uno::Reference<
75 : ::com::sun::star::uno::XComponentContext > const & context,
76 : ::JNIEnv * environment, ::rtl::OUString const & classPath)
77 : {
78 : return
79 : static_cast< ::jobjectArray >(
80 0 : doTranslateToUrls(context, environment, classPath));
81 : }
82 :
83 : /**
84 : loads a class via a java.net.URLClassLoader.
85 :
86 : @param context
87 : a component context; must not be null.
88 :
89 : @param environment
90 : a JNI environment; must not be null.
91 :
92 : @param classPath
93 : a list of zero or more internal (see the
94 : com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
95 : where any space characters (U+0020) are ignored (and, in particular,
96 : separate adjacent URI references). Any vnd.sun.star.expand URL
97 : references in the list are expanded using the
98 : com.sun.star.util.theMacroExpander singleton of the given context.
99 :
100 : @param name
101 : the Java binary name of the class to load.
102 :
103 : @returns
104 : a local reference to a java.lang.Class instance. If null, a (still
105 : pending) JNI exception occurred.
106 :
107 : @throws com::sun::star::uno::RuntimeException
108 : */
109 : static inline ::jclass loadClass(
110 : ::com::sun::star::uno::Reference<
111 : ::com::sun::star::uno::XComponentContext > const & context,
112 : ::JNIEnv * environment, ::rtl::OUString const & classPath,
113 : ::rtl::OUString const & name)
114 : {
115 : return
116 : static_cast< ::jclass >(
117 : doLoadClass(context, environment, classPath, name));
118 : }
119 :
120 : private:
121 : ClassPath(); // not defined
122 : ClassPath(ClassPath &); // not defined
123 : ~ClassPath(); // not defined
124 : void operator =(ClassPath &); // not defined
125 :
126 : // Functions that replace JNIEnv, jobjectArray, and jclass with void *, so
127 : // that their mangled C++ names do not depend on the JDK version used at
128 : // compile time:
129 :
130 : static void * doTranslateToUrls(
131 : ::com::sun::star::uno::Reference<
132 : ::com::sun::star::uno::XComponentContext > const & context,
133 : void * environment, ::rtl::OUString const & classPath);
134 :
135 : static void * doLoadClass(
136 : ::com::sun::star::uno::Reference<
137 : ::com::sun::star::uno::XComponentContext > const & context,
138 : void * environment, ::rtl::OUString const & classPath,
139 : ::rtl::OUString const & name);
140 : };
141 :
142 : }
143 :
144 : #endif
145 :
146 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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