1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef INCLUDED_JVMACCESS_CLASSPATH_HXX 25 #define INCLUDED_JVMACCESS_CLASSPATH_HXX 26 27 #include "sal/config.h" 28 #include "com/sun/star/uno/Reference.hxx" 29 #include "jvmaccess/jvmaccessdllapi.h" 30 31 #if defined SOLAR_JAVA 32 #include "jni.h" 33 #else 34 struct JNIEnv; 35 typedef void * jclass; 36 typedef void * jobjectArray; 37 #endif 38 39 namespace com { namespace sun { namespace star { namespace uno { 40 class XComponentContext; 41 } } } } 42 namespace rtl { class OUString; } 43 44 namespace jvmaccess { 45 46 /** 47 Helper functions for class path handling. 48 */ 49 class ClassPath { 50 public: 51 /** 52 translates a class path into a java.net.URL[] instance. 53 54 @param context 55 a component context; must not be null. 56 57 @param environment 58 a JNI environment; must not be null. 59 60 @param classPath 61 a list of zero or more internal (see the 62 com.sun.star.uri.ExternalUriReferenceTranslator service) URI references, 63 where any space characters (U+0020) are ignored (and, in particular, 64 separate adjacent URI references). Any vnd.sun.star.expand URL 65 references in the list are expanded using the 66 com.sun.star.util.theMacroExpander singleton of the given context. 67 68 @returns 69 a local reference to a java.net.URL[] instance containing the external 70 (see the com.sun.star.uri.ExternalUriReferenceTranslator service) 71 equivalents of all the URI references in the given classPath. If null, a 72 (still pending) JNI exception occurred. 73 74 @throws com::sun::star::uno::RuntimeException 75 */ 76 static inline ::jobjectArray translateToUrls(::com::sun::star::uno::Reference<::com::sun::star::uno::XComponentContext> const & context,::JNIEnv * environment,::rtl::OUString const & classPath)77 translateToUrls( 78 ::com::sun::star::uno::Reference< 79 ::com::sun::star::uno::XComponentContext > const & context, 80 ::JNIEnv * environment, ::rtl::OUString const & classPath) 81 { 82 return 83 static_cast< ::jobjectArray >( 84 doTranslateToUrls(context, environment, classPath)); 85 } 86 87 /** 88 loads a class via a java.net.URLClassLoader. 89 90 @param context 91 a component context; must not be null. 92 93 @param environment 94 a JNI environment; must not be null. 95 96 @param classPath 97 a list of zero or more internal (see the 98 com.sun.star.uri.ExternalUriReferenceTranslator service) URI references, 99 where any space characters (U+0020) are ignored (and, in particular, 100 separate adjacent URI references). Any vnd.sun.star.expand URL 101 references in the list are expanded using the 102 com.sun.star.util.theMacroExpander singleton of the given context. 103 104 @param name 105 the Java binary name of the class to load. 106 107 @returns 108 a local reference to a java.lang.Class instance. If null, a (still 109 pending) JNI exception occurred. 110 111 @throws com::sun::star::uno::RuntimeException 112 */ loadClass(::com::sun::star::uno::Reference<::com::sun::star::uno::XComponentContext> const & context,::JNIEnv * environment,::rtl::OUString const & classPath,::rtl::OUString const & name)113 static inline ::jclass loadClass( 114 ::com::sun::star::uno::Reference< 115 ::com::sun::star::uno::XComponentContext > const & context, 116 ::JNIEnv * environment, ::rtl::OUString const & classPath, 117 ::rtl::OUString const & name) 118 { 119 return 120 static_cast< ::jclass >( 121 doLoadClass(context, environment, classPath, name)); 122 } 123 124 private: 125 ClassPath(); // not defined 126 ClassPath(ClassPath &); // not defined 127 ~ClassPath(); // not defined 128 void operator =(ClassPath &); // not defined 129 130 // Functions that replace JNIEnv, jobjectArray, and jclass with void *, so 131 // that their mangled C++ names do not depend on the JDK version used at 132 // compile time: 133 134 JVMACCESS_DLLPUBLIC static void * doTranslateToUrls( 135 ::com::sun::star::uno::Reference< 136 ::com::sun::star::uno::XComponentContext > const & context, 137 void * environment, ::rtl::OUString const & classPath); 138 139 JVMACCESS_DLLPUBLIC static void * doLoadClass( 140 ::com::sun::star::uno::Reference< 141 ::com::sun::star::uno::XComponentContext > const & context, 142 void * environment, ::rtl::OUString const & classPath, 143 ::rtl::OUString const & name); 144 }; 145 146 } 147 148 #endif 149