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libreoffice/connectivity/source/drivers/jdbc/Object.cxx

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/*************************************************************************
*
* $RCSfile: Object.cxx,v $
*
* $Revision: 1.13 $
*
* last change: $Author: vg $ $Date: 2003-04-22 16:09:14 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 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
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _CONNECTIVITY_JAVA_LANG_OBJJECT_HXX_
#include "java/lang/Class.hxx"
#endif
#ifndef _COM_SUN_STAR_LANG_XMULTISERVICEFACTORY_HPP_
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#endif
#ifndef _COM_SUN_STAR_UNO_EXCEPTION_HPP_
#include <com/sun/star/uno/Exception.hpp>
#endif
#ifndef _COM_SUN_STAR_JAVA_XJAVATHREADREGISTER_11_HPP_
#include <com/sun/star/java/XJavaThreadRegister_11.hpp>
#endif
#ifndef _COM_SUN_STAR_JAVA_XJAVAVM_HPP_
#include <com/sun/star/java/XJavaVM.hpp>
#endif
#ifndef _CONNECTIVITY_JAVA_TOOLS_HXX_
#include "java/tools.hxx"
#endif
#ifndef _CONNECTIVITY_JAVA_SQL_SQLEXCEPTION_HXX_
#include "java/sql/SQLException.hxx"
#endif
#ifndef _VOS_PROCESS_HXX_
#include <vos/process.hxx>
#endif
#ifndef _VOS_MUTEX_HXX_
#include <vos/mutex.hxx>
#endif
#ifndef _RTL_PROCESS_H_
#include <rtl/process.h>
#endif
#ifndef _COM_SUN_STAR_UNO_SEQUENCE_HXX_
#include <com/sun/star/uno/Sequence.hxx>
#endif
using namespace connectivity;
namespace starjava = com::sun::star::java;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
// using namespace ::com::sun::star::sdbcx;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;
JavaVM * pJVM;
Reference< ::starjava::XJavaThreadRegister_11 > xRG11Ref;
sal_Bool bJRE_Error = sal_False;
JavaVM_ * pJRE_javaVM = NULL;
int SDB_JRE_InitJava(const Reference<XMultiServiceFactory >& _rxFactory)
{
OSL_ENSURE(_rxFactory.is(),"No XMultiServiceFactory a.v.!");
if(!_rxFactory.is())
return 0;
int result = 0;
JNIEnv * pEnv = NULL;
try
{
Reference< ::starjava::XJavaVM > xVM(_rxFactory->createInstance(
rtl::OUString::createFromAscii("com.sun.star.java.JavaVirtualMachine")), UNO_QUERY);
OSL_ENSURE(_rxFactory.is(),"SDB_JRE_InitJava: I have no factory!");
if (!xVM.is() || !_rxFactory.is())
throw Exception(); // -2;
Sequence<sal_Int8> processID(16);
rtl_getGlobalProcessId( (sal_uInt8*) processID.getArray() );
Any uaJVM = xVM->getJavaVM( processID );
if (!uaJVM.hasValue())
throw Exception(); // -5
else
{
sal_Int32 nValue;
uaJVM >>= nValue;
pJVM = (JavaVM *)nValue;
}
xRG11Ref = Reference< ::starjava::XJavaThreadRegister_11 >(xVM, UNO_QUERY);
if (xRG11Ref.is())
xRG11Ref->registerThread();
pJVM->AttachCurrentThread(reinterpret_cast<void**>(&pEnv), NULL);
/**
* Ist zur Zeit nicht funktionsfaehig, wegen Solaris Deadlock.
*/
// initStreamObserver(pEnv);
// if(pEnv->ExceptionOccurred())
// {
// pEnv->ExceptionDescribe();
// pEnv->ExceptionClear();
// }
}
catch (Exception& e)
{
if ( pEnv )
isExceptionOccured(pEnv,sal_True);
result = -1;
}
if(pEnv)
{
if(xRG11Ref.is())
xRG11Ref->revokeThread();
if(!xRG11Ref.is() || !xRG11Ref->isThreadAttached())
pJVM->DetachCurrentThread();
}
return result;
}
SDBThreadAttach::SDBThreadAttach() : bDetach(sal_False), pEnv(NULL)
{
attachThread(pEnv);
isExceptionOccured(pEnv,sal_True);
}
SDBThreadAttach::SDBThreadAttach(const Reference<XMultiServiceFactory >& _rxFactory) : bDetach(sal_False), pEnv(NULL)
{
attachThread(pEnv,_rxFactory);
isExceptionOccured(pEnv,sal_True);
}
SDBThreadAttach::~SDBThreadAttach()
{
sal_Bool bOk = isExceptionOccured(pEnv,sal_True);
OSL_ENSURE(!bOk,"Exception occured in JNI!");
detachThread();
}
void SDBThreadAttach::attachThread(JNIEnv * &pEnv,const Reference<XMultiServiceFactory >& _rxFactory)
{
xInit(_rxFactory);
if(xRG11Ref.is())
{
xRG11Ref->registerThread();
pJVM->AttachCurrentThread(reinterpret_cast<void**>(&pEnv), NULL);
}
}
void SDBThreadAttach::detachThread()
{
xInit();
if(xRG11Ref.is())
{
xRG11Ref->revokeThread();
if(!xRG11Ref->isThreadAttached())
pJVM->DetachCurrentThread();
}
}
void SDBThreadAttach::xInit(const Reference<XMultiServiceFactory >& _rxFactory)
{
StartJava(_rxFactory);
}
sal_Bool SDBThreadAttach::IsJavaErrorOccured()
{
return bJRE_Error;
}
void SDBThreadAttach::setError()
{
bJRE_Error = sal_True;
}
static sal_Bool bStarted = sal_False;
int SDBThreadAttach::StartJava(const Reference<XMultiServiceFactory >& _rxFactory)
{
static sal_Bool bRecFlag = sal_False;
static int err = 0;
if( !bStarted )
{
vos::OGuard aGuard( vos::OMutex::getGlobalMutex() );
if( !bStarted && !bRecFlag)
{
bRecFlag = sal_True;
// Application::EnterMultiThread();
// bStarted = sal_True must set after the VM is complete initialized
err = SDB_JRE_InitJava(_rxFactory);
if(err)
setError();
bStarted = sal_True;
}
}
// return bJRE_Error ? -1 : 0;
return err;
}
// statische Variablen der Klasse:
jclass java_lang_Object::theClass = 0;
sal_uInt32 java_lang_Object::nObjCount = 0;
jclass java_lang_Object::getMyClass()
{
if( !theClass )
{
// JNIEnv * pEnv = SDBThreadAttach::GetEnv();
SDBThreadAttach t;
if( !t.pEnv ) return (jclass)NULL;
jclass tempClass = t.pEnv->FindClass( "java/lang/Object" );
theClass = (jclass)t.pEnv->NewGlobalRef( tempClass );
t.pEnv->DeleteLocalRef( tempClass );
}
return theClass;
}
// der eigentliche Konstruktor
java_lang_Object::java_lang_Object(const Reference<XMultiServiceFactory >& _rxFactory)
: object( 0 ),m_xFactory(_rxFactory)
{
// SDBThreadAttach t(m_xFactory);
// if( !t.pEnv )
// return;
//
// // Java-Call fuer den Konstruktor absetzen
// // temporaere Variable initialisieren
// char * cSignature = "()V";
// jclass tempClass;
// jmethodID mID = t.pEnv->GetMethodID( getMyClass(), "<init>", cSignature );OSL_ENSURE(mID,"Unknown method id!");
// tempClass = (jclass)t.pEnv->NewObjectA( getMyClass(), mID, NULL );
// saveRef( t.pEnv, tempClass );
// t.pEnv->DeleteLocalRef( tempClass );
}
// der protected-Konstruktor fuer abgeleitete Klassen
java_lang_Object::java_lang_Object( JNIEnv * pXEnv, jobject myObj )
: object( NULL )
{
SDBThreadAttach t;
if( t.pEnv && myObj )
object = t.pEnv->NewGlobalRef( myObj );
}
java_lang_Object::~java_lang_Object()
{
if( object )
{
SDBThreadAttach t;
if( t.pEnv )
t.pEnv->DeleteGlobalRef( object );
}
}
// der protected-Konstruktor fuer abgeleitete Klassen
void java_lang_Object::saveRef( JNIEnv * pXEnv, jobject myObj )
{
OSL_ENSURE( myObj, "object in c++ -> Java Wrapper" );
SDBThreadAttach t;
if( t.pEnv && myObj )
object = t.pEnv->NewGlobalRef( myObj );
}
java_lang_Class * java_lang_Object::getClass()
{
jobject out;
SDBThreadAttach t;
if( t.pEnv )
{
// temporaere Variable initialisieren
char * cSignature = "()Ljava/lang/Class;";
char * cMethodName = "getClass";
// Java-Call absetzen
jmethodID mID = t.pEnv->GetMethodID( getMyClass(), cMethodName, cSignature );OSL_ENSURE(mID,"Unknown method id!");
if( mID )
{
out = t.pEnv->CallObjectMethodA( object, mID, NULL );
ThrowSQLException(t.pEnv,NULL);
return new java_lang_Class( t.pEnv, out );
} //mID
} //pEnv
return NULL;
}
::rtl::OUString java_lang_Object::toString()
{
SDBThreadAttach t;
::rtl::OUString aStr;
if( t.pEnv )
{
// temporaere Variable initialisieren
char * cSignature = "()Ljava/lang/String;";
char * cMethodName = "toString";
// Java-Call absetzen
jmethodID mID = t.pEnv->GetMethodID( getMyClass(), cMethodName, cSignature );OSL_ENSURE(mID,"Unknown method id!");
if( mID )
{
jstring out(0);
out = (jstring)t.pEnv->CallObjectMethod( object, mID);
ThrowSQLException(t.pEnv,NULL);
if(out)
aStr = JavaString2String(t.pEnv,out);
} //mID
} //pEnv
return aStr;
}
// --------------------------------------------------------------------------------
void java_lang_Object::ThrowSQLException(JNIEnv * pEnv,const Reference< XInterface> & _rContext) throw(SQLException, RuntimeException)
{
jthrowable jThrow = NULL;
if(pEnv && (jThrow = pEnv->ExceptionOccurred()))
{
pEnv->ExceptionClear();// we have to clear the exception here because we want to handle it itself
if(pEnv->IsInstanceOf(jThrow,java_sql_SQLException_BASE::getMyClass()))
{
java_sql_SQLException_BASE* pException = new java_sql_SQLException_BASE(pEnv,jThrow);
SQLException e( pException->getMessage(),
_rContext,
pException->getSQLState(),
pException->getErrorCode(),
Any()
);
delete pException;
throw e;
}
else if(pEnv->IsInstanceOf(jThrow,java_lang_Throwable::getMyClass()))
{
java_lang_Throwable *pThrow = new java_lang_Throwable(pEnv,jThrow);
::rtl::OUString aMsg = pThrow->getMessage();
if(!aMsg.getLength())
aMsg = pThrow->getLocalizedMessage();
if(!aMsg.getLength())
aMsg = pThrow->toString();
delete pThrow;
throw SQLException(aMsg,_rContext,::rtl::OUString(),-1,Any());
}
}
}
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