1 files changed, 108 insertions, 0 deletions
diff --git a/jvmaccess/source/classpath.cxx b/jvmaccess/source/classpath.cxx
new file mode 100644
index 000000000..95915196b
--- /dev/null
+++ b/jvmaccess/source/classpath.cxx
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <jvmaccess/classpath.hxx>
+
+#include <cassert>
+#include <vector>
+
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/XInterface.hpp>
+#include <com/sun/star/uri/UriReferenceFactory.hpp>
+#include <com/sun/star/uri/XVndSunStarExpandUrlReference.hpp>
+#include <com/sun/star/util/theMacroExpander.hpp>
+#include <cppuhelper/exc_hlp.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <o3tl/string_view.hxx>
+
+#include <jni.h>
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+jobjectArray jvmaccess::ClassPath::translateToUrls(
+    css::uno::Reference< css::uno::XComponentContext > const & context,
+    JNIEnv * environment, std::u16string_view classPath)
+{
+    assert(context.is());
+    assert(environment != nullptr);
+    jclass classUrl(environment->FindClass("java/net/URL"));
+    if (classUrl == nullptr) {
+        return nullptr;
+    }
+    jmethodID ctorUrl(
+        environment->GetMethodID(classUrl, "<init>", "(Ljava/lang/String;)V"));
+    if (ctorUrl == nullptr) {
+        return nullptr;
+    }
+    ::std::vector< jobject > urls;
+    for (::sal_Int32 i = 0; i != -1;) {
+        OUString url(o3tl::getToken(classPath, 0, ' ', i));
+        if (!url.isEmpty()) {
+            css::uno::Reference< css::uri::XVndSunStarExpandUrlReference >
+                expUrl(
+                    css::uri::UriReferenceFactory::create(context)->parse(url),
+                    css::uno::UNO_QUERY);
+            if (expUrl.is()) {
+                css::uno::Reference< css::util::XMacroExpander > expander =
+                    css::util::theMacroExpander::get(context);
+                try {
+                    url = expUrl->expand( expander );
+                } catch (const css::lang::IllegalArgumentException & e) {
+                    css::uno::Any anyEx = cppu::getCaughtException();
+                    throw css::lang::WrappedTargetRuntimeException(
+                        "com.sun.star.lang.IllegalArgumentException: "
+                         + e.Message,
+                         nullptr, anyEx );
+                }
+            }
+            jvalue arg;
+            arg.l = environment->NewString(
+                reinterpret_cast< jchar const * >(url.getStr()),
+                static_cast< jsize >(url.getLength()));
+            if (arg.l == nullptr) {
+                return nullptr;
+            }
+            jobject o(environment->NewObjectA(classUrl, ctorUrl, &arg));
+            if (o == nullptr) {
+                return nullptr;
+            }
+            urls.push_back(o);
+        }
+    }
+    jobjectArray result = environment->NewObjectArray(
+        static_cast< jsize >(urls.size()), classUrl, nullptr);
+        // static_cast is ok, as each element of urls occupied at least one
+        // character of the OUString classPath
+    if (result == nullptr) {
+        return nullptr;
+    }
+    jsize idx = 0;
+    for (auto const& url : urls)
+    {
+        environment->SetObjectArrayElement(result, idx++, url);
+    }
+    return result;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */