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 30 #if defined SOLAR_JAVA 31 #include "jni.h" 32 #else 33 struct JNIEnv; 34 typedef void * jclass; 35 typedef void * jobjectArray; 36 #endif 37 38 namespace com { namespace sun { namespace star { namespace uno { 39 class XComponentContext; 40 } } } } 41 namespace rtl { class OUString; } 42 43 namespace jvmaccess { 44 45 /** 46 Helper functions for class path handling. 47 */ 48 class ClassPath { 49 public: 50 /** 51 translates a class path into a java.net.URL[] instance. 52 53 @param context 54 a component context; must not be null. 55 56 @param environment 57 a JNI environment; must not be null. 58 59 @param classPath 60 a list of zero or more internal (see the 61 com.sun.star.uri.ExternalUriReferenceTranslator service) URI references, 62 where any space characters (U+0020) are ignored (and, in particular, 63 separate adjacent URI references). Any vnd.sun.star.expand URL 64 references in the list are expanded using the 65 com.sun.star.util.theMacroExpander singleton of the given context. 66 67 @returns 68 a local reference to a java.net.URL[] instance containing the external 69 (see the com.sun.star.uri.ExternalUriReferenceTranslator service) 70 equivalents of all the URI references in the given classPath. If null, a 71 (still pending) JNI exception occurred. 72 73 @throws com::sun::star::uno::RuntimeException 74 */ 75 static inline ::jobjectArray translateToUrls(::com::sun::star::uno::Reference<::com::sun::star::uno::XComponentContext> const & context,::JNIEnv * environment,::rtl::OUString const & classPath)76 translateToUrls( 77 ::com::sun::star::uno::Reference< 78 ::com::sun::star::uno::XComponentContext > const & context, 79 ::JNIEnv * environment, ::rtl::OUString const & classPath) 80 { 81 return 82 static_cast< ::jobjectArray >( 83 doTranslateToUrls(context, environment, classPath)); 84 } 85 86 /** 87 loads a class via a java.net.URLClassLoader. 88 89 @param context 90 a component context; must not be null. 91 92 @param environment 93 a JNI environment; must not be null. 94 95 @param classPath 96 a list of zero or more internal (see the 97 com.sun.star.uri.ExternalUriReferenceTranslator service) URI references, 98 where any space characters (U+0020) are ignored (and, in particular, 99 separate adjacent URI references). Any vnd.sun.star.expand URL 100 references in the list are expanded using the 101 com.sun.star.util.theMacroExpander singleton of the given context. 102 103 @param name 104 the Java binary name of the class to load. 105 106 @returns 107 a local reference to a java.lang.Class instance. If null, a (still 108 pending) JNI exception occurred. 109 110 @throws com::sun::star::uno::RuntimeException 111 */ loadClass(::com::sun::star::uno::Reference<::com::sun::star::uno::XComponentContext> const & context,::JNIEnv * environment,::rtl::OUString const & classPath,::rtl::OUString const & name)112 static inline ::jclass loadClass( 113 ::com::sun::star::uno::Reference< 114 ::com::sun::star::uno::XComponentContext > const & context, 115 ::JNIEnv * environment, ::rtl::OUString const & classPath, 116 ::rtl::OUString const & name) 117 { 118 return 119 static_cast< ::jclass >( 120 doLoadClass(context, environment, classPath, name)); 121 } 122 123 private: 124 ClassPath(); // not defined 125 ClassPath(ClassPath &); // not defined 126 ~ClassPath(); // not defined 127 void operator =(ClassPath &); // not defined 128 129 // Functions that replace JNIEnv, jobjectArray, and jclass with void *, so 130 // that their mangled C++ names do not depend on the JDK version used at 131 // compile time: 132 133 static void * doTranslateToUrls( 134 ::com::sun::star::uno::Reference< 135 ::com::sun::star::uno::XComponentContext > const & context, 136 void * environment, ::rtl::OUString const & classPath); 137 138 static void * doLoadClass( 139 ::com::sun::star::uno::Reference< 140 ::com::sun::star::uno::XComponentContext > const & context, 141 void * environment, ::rtl::OUString const & classPath, 142 ::rtl::OUString const & name); 143 }; 144 145 } 146 147 #endif 148