1 files changed, 134 insertions, 0 deletions
diff --git a/connectivity/source/drivers/jdbc/ContextClassLoader.cxx b/connectivity/source/drivers/jdbc/ContextClassLoader.cxx
new file mode 100644
index 000000000000..36ff7a067cc4
--- /dev/null
+++ b/connectivity/source/drivers/jdbc/ContextClassLoader.cxx
@@ -0,0 +1,134 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_connectivity.hxx"
+
+#include "java/ContextClassLoader.hxx"
+#include "java/lang/Object.hxx"
+
+/** === begin UNO includes === **/
+/** === end UNO includes === **/
+
+//........................................................................
+namespace connectivity { namespace jdbc
+{
+//........................................................................
+
+    /** === begin UNO using === **/
+    using ::com::sun::star::uno::Reference;
+    using ::com::sun::star::uno::XInterface;
+    /** === end UNO using === **/
+
+    using ::connectivity::java_lang_Object;
+
+    //====================================================================
+    //= ContextClassLoaderScope
+    //====================================================================
+    //--------------------------------------------------------------------
+    ContextClassLoaderScope::ContextClassLoaderScope( JNIEnv& environment, const GlobalRef< jobject >& newClassLoader,
+        const ::comphelper::ResourceBasedEventLogger& _rLoggerForErrors, const Reference< XInterface >& _rxErrorContext )
+        :m_environment( environment )
+        ,m_currentThread( environment )
+        ,m_oldContextClassLoader( environment )
+    {
+        if ( !newClassLoader.is() )
+            return;
+
+        do  // artificial loop for easier flow control
+        {
+
+        LocalRef< jclass > threadClass( m_environment );
+        threadClass.set( m_environment.FindClass( "java/lang/Thread" ) );
+        if ( !threadClass.is() )
+            break;
+
+        jmethodID currentThreadMethod( m_environment.GetStaticMethodID(
+            threadClass.get(), "currentThread", "()Ljava/lang/Thread;" ) );
+        if ( currentThreadMethod == NULL )
+            break;
+
+        m_currentThread.set( m_environment.CallStaticObjectMethod( threadClass.get(), currentThreadMethod ) );
+        if ( !m_currentThread.is() )
+            break;
+
+        jmethodID getContextClassLoaderMethod( m_environment.GetMethodID(
+            threadClass.get(), "getContextClassLoader", "()Ljava/lang/ClassLoader;" ) );
+        if ( getContextClassLoaderMethod == NULL )
+            break;
+        m_oldContextClassLoader.set( m_environment.CallObjectMethod( m_currentThread.get(), getContextClassLoaderMethod ) );
+        LocalRef< jthrowable > throwable( m_environment, m_environment.ExceptionOccurred() );
+        if ( throwable.is() )
+            break;
+
+        m_setContextClassLoaderMethod = m_environment.GetMethodID(
+            threadClass.get(), "setContextClassLoader", "(Ljava/lang/ClassLoader;)V" );
+        if ( m_setContextClassLoaderMethod == NULL )
+            break;
+
+        }
+        while ( false );
+
+        if ( !isActive() )
+        {
+            java_lang_Object::ThrowLoggedSQLException( _rLoggerForErrors, &environment, _rxErrorContext );
+            return;
+        }
+
+        // set the new class loader
+        m_environment.CallObjectMethod( m_currentThread.get(), m_setContextClassLoaderMethod, newClassLoader.get() );
+        LocalRef< jthrowable > throwable( m_environment, m_environment.ExceptionOccurred() );
+        if ( throwable.is() )
+        {
+            m_currentThread.reset();
+            m_setContextClassLoaderMethod = NULL;
+            java_lang_Object::ThrowLoggedSQLException( _rLoggerForErrors, &environment, _rxErrorContext );
+        }
+    }
+
+    //--------------------------------------------------------------------
+    void ContextClassLoaderScope::pop( bool clearExceptions )
+    {
+        if ( isActive() )
+        {
+            LocalRef< jobject > currentThread( m_currentThread.env(), m_currentThread.release() );
+            jmethodID setContextClassLoaderMethod( m_setContextClassLoaderMethod );
+            m_setContextClassLoaderMethod = NULL;
+
+            m_environment.CallObjectMethod( currentThread.get(), setContextClassLoaderMethod, m_oldContextClassLoader.get() );
+            if ( clearExceptions )
+            {
+                m_environment.ExceptionClear();
+            }
+        }
+    }
+//........................................................................
+} } // namespace connectivity::jdbc
+//........................................................................
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */