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-rw-r--r-- | connectivity/source/inc/java/ContextClassLoader.hxx | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/connectivity/source/inc/java/ContextClassLoader.hxx b/connectivity/source/inc/java/ContextClassLoader.hxx new file mode 100644 index 000000000..dea3fb58b --- /dev/null +++ b/connectivity/source/inc/java/ContextClassLoader.hxx @@ -0,0 +1,82 @@ +/* -*- 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_CONNECTIVITY_SOURCE_INC_JAVA_CONTEXTCLASSLOADER_HXX +#define INCLUDED_CONNECTIVITY_SOURCE_INC_JAVA_CONTEXTCLASSLOADER_HXX + +#include <java/GlobalRef.hxx> + +namespace comphelper +{ + class EventLogger; +} + + +namespace connectivity::jdbc +{ + class ContextClassLoaderScope + { + public: + /** creates the instance. If isActive returns <FALSE/> afterwards, then an exception + happened in the JVM, which should be raised as UNO exception by the caller + + @param environment + the current JNI environment + @param newClassLoader + the new class loader to set at the current thread + @param _rLoggerForErrors + the logger which should be passed to java_lang_object::ThrowLoggedSQLException in case + an error occurs + @param _rxErrorContext + the context which should be passed to java_lang_object::ThrowLoggedSQLException in case + an error occurs + + */ + ContextClassLoaderScope( + JNIEnv& environment, + const GlobalRef< jobject >& newClassLoader, + const ::comphelper::EventLogger& _rLoggerForErrors, + const css::uno::Reference< css::uno::XInterface >& _rxErrorContext + ); + + ~ContextClassLoaderScope(); + + bool isActive() const + { + return ( m_currentThread.is() ) + && ( m_setContextClassLoaderMethod != nullptr ); + } + + private: + ContextClassLoaderScope(ContextClassLoaderScope const &) = delete; + ContextClassLoaderScope& operator =(ContextClassLoaderScope const &) = delete; + + JNIEnv& m_environment; + LocalRef< jobject > m_currentThread; + LocalRef< jobject > m_oldContextClassLoader; + jmethodID m_setContextClassLoaderMethod; + }; + + +} // namespace connectivity::jdbc + + +#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_JAVA_CONTEXTCLASSLOADER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |