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 <cassert>
  25 #include <vector>
  26
  27 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  28 #include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
  29 #include <com/sun/star/uno/Reference.hxx>
  30 #include <com/sun/star/uno/XInterface.hpp>
  31 #include <com/sun/star/uri/UriReferenceFactory.hpp>
  32 #include <com/sun/star/uri/XVndSunStarExpandUrlReference.hpp>
  33 #include <com/sun/star/util/theMacroExpander.hpp>
  34 #include <cppuhelper/exc_hlp.hxx>
  35 #include <rtl/ustring.hxx>
  36 #include <sal/types.h>
  37 #include <o3tl/string_view.hxx>
  38
  39 #include <jni.h>
  40
  41 namespace com::sun::star::uno { class XComponentContext; }
  42
  43 jobjectArray jvmaccess::ClassPath::translateToUrls(
  44     css::uno::Reference< css::uno::XComponentContext > const & context,
  45     JNIEnv * environment, std::u16string_view classPath)
  46 {
  47     assert(context.is());
  48     assert(environment != nullptr);
  49     jclass classUrl(environment->FindClass("java/net/URL"));
  50     if (classUrl == nullptr) {
  51         return nullptr;
  52     }
  53     jmethodID ctorUrl(
  54         environment->GetMethodID(classUrl, "<init>", "(Ljava/lang/String;)V"));
  55     if (ctorUrl == nullptr) {
  56         return nullptr;
  57     }
  58     ::std::vector< jobject > urls;
  59     for (::sal_Int32 i = 0; i != -1;) {
  60         OUString url(o3tl::getToken(classPath, 0, ' ', i));
  61         if (!url.isEmpty()) {
  62             css::uno::Reference< css::uri::XVndSunStarExpandUrlReference >
  63                 expUrl(
  64                     css::uri::UriReferenceFactory::create(context)->parse(url),
  65                     css::uno::UNO_QUERY);
  66             if (expUrl.is()) {
  67                 css::uno::Reference< css::util::XMacroExpander > expander =
  68                     css::util::theMacroExpander::get(context);
  69                 try {
  70                     url = expUrl->expand( expander );
  71                 } catch (const css::lang::IllegalArgumentException & e) {
  72                     css::uno::Any anyEx = cppu::getCaughtException();
  73                     throw css::lang::WrappedTargetRuntimeException(
  74                         "com.sun.star.lang.IllegalArgumentException: "
  75                          + e.Message,
  76                          nullptr, anyEx );
  77                 }
  78             }
  79             jvalue arg;
  80             arg.l = environment->NewString(
  81                 reinterpret_cast< jchar const * >(url.getStr()),
  82                 static_cast< jsize >(url.getLength()));
  83             if (arg.l == nullptr) {
  84                 return nullptr;
  85             }
  86             jobject o(environment->NewObjectA(classUrl, ctorUrl, &arg));
  87             if (o == nullptr) {
  88                 return nullptr;
  89             }
  90             urls.push_back(o);
  91         }
  92     }
  93     jobjectArray result = environment->NewObjectArray(
  94         static_cast< jsize >(urls.size()), classUrl, nullptr);
  95         // static_cast is ok, as each element of urls occupied at least one
  96         // character of the OUString classPath
  97     if (result == nullptr) {
  98         return nullptr;
  99     }
 100     jsize idx = 0;
 101     for (auto const& url : urls)
 102     {
 103         environment->SetObjectArrayElement(result, idx++, url);
 104     }
 105     return result;
 106 }
 107
 108 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */