jvmaccess/source/classpath.cxx

   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 #include "sal/config.h"
  21
  22 #include "jvmaccess/classpath.hxx"
  23
  24 #include <vector>
  25
  26 #include "com/sun/star/lang/IllegalArgumentException.hpp"
  27 #include "com/sun/star/uno/Any.hxx"
  28 #include "com/sun/star/uno/Reference.hxx"
  29 #include "com/sun/star/uno/RuntimeException.hpp"
  30 #include "com/sun/star/uno/XComponentContext.hpp"
  31 #include "com/sun/star/uno/XInterface.hpp"
  32 #include "com/sun/star/uri/UriReferenceFactory.hpp"
  33 #include "com/sun/star/uri/XVndSunStarExpandUrlReference.hpp"
  34 #include "com/sun/star/util/XMacroExpander.hpp"
  35 #include "osl/diagnose.h"
  36 #include "rtl/ustring.hxx"
  37 #include "sal/types.h"
  38
  39 #if defined SOLAR_JAVA
  40 #include "jni.h"
  41 #endif
  42
  43 void * ::jvmaccess::ClassPath::doTranslateToUrls(
  44     css::uno::Reference< css::uno::XComponentContext > const & context,
  45     void * environment, ::rtl::OUString const & classPath)
  46 {
  47     OSL_ASSERT(context.is() && environment != 0);
  48 #if defined SOLAR_JAVA
  49     ::JNIEnv * const env = static_cast< ::JNIEnv * >(environment);
  50     jclass classUrl(env->FindClass("java/net/URL"));
  51     if (classUrl == 0) {
  52         return 0;
  53     }
  54     jmethodID ctorUrl(
  55         env->GetMethodID(classUrl, "<init>", "(Ljava/lang/String;)V"));
  56     if (ctorUrl == 0) {
  57         return 0;
  58     }
  59     ::std::vector< jobject > urls;
  60     for (::sal_Int32 i = 0; i != -1;) {
  61         ::rtl::OUString url(classPath.getToken(0, ' ', i));
  62         if (!url.isEmpty()) {
  63             css::uno::Reference< css::uri::XVndSunStarExpandUrlReference >
  64                 expUrl(
  65                     css::uri::UriReferenceFactory::create(context)->parse(url),
  66                     css::uno::UNO_QUERY);
  67             if (expUrl.is()) {
  68                 css::uno::Reference< css::util::XMacroExpander > expander(
  69                     context->getValueByName(
  70                         ::rtl::OUString(
  71                             RTL_CONSTASCII_USTRINGPARAM(
  72                                 "/singletons/"
  73                                 "com.sun.star.util.theMacroExpander"))),
  74                     css::uno::UNO_QUERY_THROW);
  75                 try {
  76                     url = expUrl->expand(expander);
  77                 } catch (const css::lang::IllegalArgumentException & e) {
  78                     throw css::uno::RuntimeException(
  79                         (::rtl::OUString(
  80                             RTL_CONSTASCII_USTRINGPARAM(
  81                                 "com.sun.star.lang.IllegalArgumentException: "))
  82                          + e.Message),
  83                         css::uno::Reference< css::uno::XInterface >());
  84                 }
  85             }
  86             jvalue arg;
  87             arg.l = env->NewString(
  88                 static_cast< jchar const * >(url.getStr()),
  89                 static_cast< jsize >(url.getLength()));
  90             if (arg.l == 0) {
  91                 return 0;
  92             }
  93             jobject o(env->NewObjectA(classUrl, ctorUrl, &arg));
  94             if (o == 0) {
  95                 return 0;
  96             }
  97             urls.push_back(o);
  98         }
  99     }
 100     jobjectArray result = env->NewObjectArray(
 101         static_cast< jsize >(urls.size()), classUrl, 0);
 102         // static_cast is ok, as each element of urls occupied at least one
 103         // character of the ::rtl::OUString classPath
 104     if (result == 0) {
 105         return 0;
 106     }
 107     jsize idx = 0;
 108     for (std::vector< jobject >::iterator i(urls.begin()); i != urls.end(); ++i)
 109     {
 110         env->SetObjectArrayElement(result, idx++, *i);
 111     }
 112     return result;
 113 #else
 114     (void) context;
 115     (void) environment;
 116     (void) classPath;
 117     return 0;
 118 #endif
 119 }
 120
 121 void * ::jvmaccess::ClassPath::doLoadClass(
 122     css::uno::Reference< css::uno::XComponentContext > const & context,
 123     void * environment, ::rtl::OUString const & classPath,
 124     ::rtl::OUString const & name)
 125 {
 126     OSL_ASSERT(context.is() && environment != 0);
 127 #if defined SOLAR_JAVA
 128     ::JNIEnv * const env = static_cast< ::JNIEnv * >(environment);
 129     jclass classLoader(env->FindClass("java/net/URLClassLoader"));
 130     if (classLoader == 0) {
 131         return 0;
 132     }
 133     jmethodID ctorLoader(
 134         env->GetMethodID(classLoader, "<init>", "([Ljava/net/URL;)V"));
 135     if (ctorLoader == 0) {
 136         return 0;
 137     }
 138     jvalue arg;
 139     arg.l = translateToUrls(context, env, classPath);
 140     if (arg.l == 0) {
 141         return 0;
 142     }
 143     jobject cl = env->NewObjectA(classLoader, ctorLoader, &arg);
 144     if (cl == 0) {
 145         return 0;
 146     }
 147     jmethodID methLoadClass(
 148         env->GetMethodID(
 149             classLoader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;"));
 150     if (methLoadClass == 0) {
 151         return 0;
 152     }
 153     arg.l = env->NewString(
 154         static_cast< jchar const * >(name.getStr()),
 155         static_cast< jsize >(name.getLength()));
 156     if (arg.l == 0) {
 157         return 0;
 158     }
 159     return env->CallObjectMethodA(cl, methLoadClass, &arg);
 160 #else
 161     (void) context;
 162     (void) environment;
 163     (void) classPath;
 164     (void) name;
 165     return 0;
 166 #endif
 167 }
 168
 169 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */