INTEGRATION: CWS dba24c (1.1.2); FILE ADDED

2007/10/24 06:31:56 fs 1.1.2.2: #i10000#
2007/10/15 13:31:46 fs 1.1.2.1: #i82222# outsourced/modified SB's implementation of this class

1 files changed, 139 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..3d22c725cc12
--- /dev/null
+++ b/connectivity/source/drivers/jdbc/ContextClassLoader.cxx
@@ -0,0 +1,139 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: ContextClassLoader.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: ihi $ $Date: 2007-11-21 15:03:01 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library 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 for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+// 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
+//........................................................................