1 files changed, 139 insertions, 0 deletions
diff --git a/include/jvmaccess/classpath.hxx b/include/jvmaccess/classpath.hxx
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+++ b/include/jvmaccess/classpath.hxx
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+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_JVMACCESS_CLASSPATH_HXX
+#define INCLUDED_JVMACCESS_CLASSPATH_HXX
+
+#include "jvmaccessdllapi.h"
+#include "sal/config.h"
+#include "com/sun/star/uno/Reference.hxx"
+
+#include "jni.h"
+
+namespace com { namespace sun { namespace star { namespace uno {
+    class XComponentContext;
+} } } }
+
+namespace jvmaccess {
+
+/**
+   Helper functions for class path handling.
+*/
+class JVMACCESS_DLLPUBLIC ClassPath {
+public:
+    /**
+       translates a class path into a java.net.URL[] instance.
+
+       @param context
+       a component context; must not be null.
+
+       @param environment
+       a JNI environment; must not be null.
+
+       @param classPath
+       a list of zero or more internal (see the
+       com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
+       where any space characters (U+0020) are ignored (and, in particular,
+       separate adjacent URI references).  Any vnd.sun.star.expand URL
+       references in the list are expanded using the
+       com.sun.star.util.theMacroExpander singleton of the given context.
+
+       @returns
+       a local reference to a java.net.URL[] instance containing the external
+       (see the com.sun.star.uri.ExternalUriReferenceTranslator service)
+       equivalents of all the URI references in the given classPath.  If null, a
+       (still pending) JNI exception occurred.
+
+       @throws com::sun::star::uno::RuntimeException
+    */
+    static inline ::jobjectArray
+    translateToUrls(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        ::JNIEnv * environment, OUString const & classPath)
+    {
+        return
+            static_cast< ::jobjectArray >(
+                doTranslateToUrls(context, environment, classPath));
+    }
+
+    /**
+       loads a class via a java.net.URLClassLoader.
+
+       @param context
+       a component context; must not be null.
+
+       @param environment
+       a JNI environment; must not be null.
+
+       @param classPath
+       a list of zero or more internal (see the
+       com.sun.star.uri.ExternalUriReferenceTranslator service) URI references,
+       where any space characters (U+0020) are ignored (and, in particular,
+       separate adjacent URI references).  Any vnd.sun.star.expand URL
+       references in the list are expanded using the
+       com.sun.star.util.theMacroExpander singleton of the given context.
+
+       @param name
+       the Java binary name of the class to load.
+
+       @returns
+       a local reference to a java.lang.Class instance.  If null, a (still
+       pending) JNI exception occurred.
+
+       @throws com::sun::star::uno::RuntimeException
+    */
+    static inline ::jclass loadClass(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        ::JNIEnv * environment, OUString const & classPath,
+        OUString const & name)
+    {
+        return
+            static_cast< ::jclass >(
+                doLoadClass(context, environment, classPath, name));
+    }
+
+private:
+    ClassPath(); // not defined
+    ClassPath(ClassPath &); // not defined
+    ~ClassPath(); // not defined
+    void operator =(ClassPath &); // not defined
+
+    // Functions that replace JNIEnv, jobjectArray, and jclass with void *, so
+    // that their mangled C++ names do not depend on the JDK version used at
+    // compile time:
+
+    static void * doTranslateToUrls(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        void * environment, OUString const & classPath);
+
+    static void * doLoadClass(
+        ::com::sun::star::uno::Reference<
+        ::com::sun::star::uno::XComponentContext > const & context,
+        void * environment, OUString const & classPath,
+        OUString const & name);
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */