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If not, see * * for a copy of the LGPLv3 License. * ************************************************************************/ // MARKER(update_precomp.py): autogen include statement, do not remove #include "precompiled_bridges.hxx" #include #include "jni_bridge.h" //#include "jni_finalizer.h" #include #include using namespace ::rtl; namespace jni_uno { //______________________________________________________________________________ jobject Bridge::map_to_java( JNI_context const & jni, uno_Interface * pUnoI, JNI_interface_type_info const * info ) const { // get oid rtl_uString * pOid = 0; (*m_uno_env->getObjectIdentifier)( m_uno_env, &pOid, pUnoI ); OSL_ASSERT( 0 != pOid ); OUString oid( pOid, SAL_NO_ACQUIRE ); // opt getRegisteredInterface() JLocalAutoRef jo_oid( jni, ustring_to_jstring( jni, oid.pData ) ); jvalue args[ 2 ]; args[ 0 ].l = jo_oid.get(); args[ 1 ].l = info->m_type; jobject jo_iface = jni->CallObjectMethodA( m_jni_info->m_object_java_env, m_jni_info->m_method_IEnvironment_getRegisteredInterface, args ); jni.ensure_no_exception(); if (0 == jo_iface) // no registered iface { // register uno interface (*m_uno_env->registerInterface)( m_uno_env, reinterpret_cast< void ** >( &pUnoI ), oid.pData, (typelib_InterfaceTypeDescription *)info->m_td.get() ); // create java and register java proxy jvalue args2[ 7 ]; acquire(); args2[ 0 ].j = reinterpret_cast< sal_Int64 >( this ); (*pUnoI->acquire)( pUnoI ); args2[ 1 ].l = m_jni_info->m_object_java_env; args2[ 2 ].j = reinterpret_cast< sal_Int64 >( pUnoI ); typelib_typedescription_acquire( info->m_td.get() ); args2[ 3 ].j = reinterpret_cast< sal_Int64 >( info->m_td.get() ); args2[ 4 ].l = info->m_type; args2[ 5 ].l = jo_oid.get(); args2[ 6 ].l = info->m_proxy_ctor; jo_iface = jni->CallStaticObjectMethodA( m_jni_info->m_class_JNI_proxy, m_jni_info->m_method_JNI_proxy_create, args2 ); jni.ensure_no_exception(); } OSL_ASSERT( 0 != jo_iface ); return jo_iface; } //______________________________________________________________________________ void Bridge::handle_uno_exc( JNI_context const & jni, uno_Any * uno_exc ) const { if (typelib_TypeClass_EXCEPTION == uno_exc->pType->eTypeClass) { #if OSL_DEBUG_LEVEL > 0 // append java stack trace to Message member reinterpret_cast< ::com::sun::star::uno::Exception * >( uno_exc->pData )->Message += jni.get_stack_trace(); #endif #if OSL_DEBUG_LEVEL > 1 { OUStringBuffer buf( 128 ); buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("exception occured java->uno: [") ); buf.append( OUString::unacquired( &uno_exc->pType->pTypeName ) ); buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("] ") ); buf.append( reinterpret_cast< ::com::sun::star::uno::Exception const * >( uno_exc->pData )->Message ); OString cstr_msg( OUStringToOString( buf.makeStringAndClear(), RTL_TEXTENCODING_ASCII_US ) ); OSL_TRACE( cstr_msg.getStr() ); } #endif // signal exception jvalue java_exc; try { map_to_java( jni, &java_exc, uno_exc->pData, uno_exc->pType, 0, true /* in */, false /* no out */ ); } catch (...) { uno_any_destruct( uno_exc, 0 ); throw; } uno_any_destruct( uno_exc, 0 ); JLocalAutoRef jo_exc( jni, java_exc.l ); jint res = jni->Throw( (jthrowable) jo_exc.get() ); if (0 != res) { // call toString() JLocalAutoRef jo_descr( jni, jni->CallObjectMethodA( jo_exc.get(), m_jni_info->m_method_Object_toString, 0 ) ); jni.ensure_no_exception(); OUStringBuffer buf( 128 ); buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "throwing java exception failed: ") ); buf.append( jstring_to_oustring( jni, (jstring) jo_descr.get() ) ); buf.append( jni.get_stack_trace() ); throw BridgeRuntimeError( buf.makeStringAndClear() ); } } else { OUString message( OUSTR("thrown exception is no uno exception: ") + OUString::unacquired( &uno_exc->pType->pTypeName ) + jni.get_stack_trace() ); uno_any_destruct( uno_exc, 0 ); throw BridgeRuntimeError( message ); } } union largest { sal_Int64 n; double d; void * p; uno_Any a; }; //______________________________________________________________________________ jobject Bridge::call_uno( JNI_context const & jni, uno_Interface * pUnoI, typelib_TypeDescription * member_td, typelib_TypeDescriptionReference * return_type, sal_Int32 nParams, typelib_MethodParameter const * pParams, jobjectArray jo_args /* may be 0 */ ) const { // return mem sal_Int32 return_size; switch (return_type->eTypeClass) { case typelib_TypeClass_VOID: return_size = 0; break; case typelib_TypeClass_STRUCT: case typelib_TypeClass_EXCEPTION: return_size = std::max( TypeDescr(return_type).get()->nSize, static_cast< sal_Int32 >(sizeof (largest))); break; default: return_size = sizeof (largest); break; } #ifdef BROKEN_ALLOCA char * mem = (char *) malloc( #else char * mem = (char *) alloca( #endif (nParams * sizeof (void *)) + return_size + (nParams * sizeof (largest)) ); void ** uno_args = (void **) mem; void * uno_ret = return_size == 0 ? 0 : (mem + (nParams * sizeof (void *))); largest * uno_args_mem = (largest *) (mem + (nParams * sizeof (void *)) + return_size); OSL_ASSERT( (0 == nParams) || (nParams == jni->GetArrayLength( jo_args )) ); for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) { typelib_MethodParameter const & param = pParams[ nPos ]; typelib_TypeDescriptionReference * type = param.pTypeRef; uno_args[ nPos ] = &uno_args_mem[ nPos ]; if (typelib_TypeClass_STRUCT == type->eTypeClass || typelib_TypeClass_EXCEPTION == type->eTypeClass) { TypeDescr td( type ); if (sal::static_int_cast< sal_uInt32 >(td.get()->nSize) > sizeof (largest)) #ifdef BROKEN_ALLOCA uno_args[ nPos ] = malloc( td.get()->nSize ); #else uno_args[ nPos ] = alloca( td.get()->nSize ); #endif } if (param.bIn) { try { JLocalAutoRef jo_arg( jni, jni->GetObjectArrayElement( jo_args, nPos ) ); jni.ensure_no_exception(); jvalue java_arg; java_arg.l = jo_arg.get(); map_to_uno( jni, uno_args[ nPos ], java_arg, type, 0, false /* no assign */, sal_False != param.bOut, true /* special wrapped integral types */ ); } catch (...) { // cleanup uno in args for ( sal_Int32 n = 0; n < nPos; ++n ) { typelib_MethodParameter const & p = pParams[ n ]; if (p.bIn) { uno_type_destructData( uno_args[ n ], p.pTypeRef, 0 ); } #ifdef BROKEN_ALLOCA if (uno_args[ nPos ] && uno_args[ nPos ] != &uno_args_mem[ nPos ]) free( uno_args[ nPos ] ); #endif } #ifdef BROKEN_ALLOCA free( mem ); #endif throw; } } } uno_Any uno_exc_holder; uno_Any * uno_exc = &uno_exc_holder; // call binary uno (*pUnoI->pDispatcher)( pUnoI, member_td, uno_ret, uno_args, &uno_exc ); if (0 == uno_exc) { // convert out args; destruct uno args for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) { typelib_MethodParameter const & param = pParams[ nPos ]; typelib_TypeDescriptionReference * type = param.pTypeRef; if (param.bOut) { try { // get out holder array[ 1 ] JLocalAutoRef jo_out_holder( jni, jni->GetObjectArrayElement( jo_args, nPos ) ); jni.ensure_no_exception(); jvalue java_arg; java_arg.l = jo_out_holder.get(); map_to_java( jni, &java_arg, uno_args[ nPos ], type, 0, true /* in */, true /* out holder */ ); } catch (...) { // cleanup further uno args for ( sal_Int32 n = nPos; n < nParams; ++n ) { uno_type_destructData( uno_args[ n ], pParams[ n ].pTypeRef, 0 ); #ifdef BROKEN_ALLOCA if (uno_args[ nPos ] && uno_args[ nPos ] != &uno_args_mem[ nPos ]) free( uno_args[ nPos ] ); #endif } // cleanup uno return value uno_type_destructData( uno_ret, return_type, 0 ); #ifdef BROKEN_ALLOCA free( mem ); #endif throw; } } if (typelib_TypeClass_DOUBLE < type->eTypeClass && typelib_TypeClass_ENUM != type->eTypeClass) // opt { uno_type_destructData( uno_args[ nPos ], type, 0 ); #ifdef BROKEN_ALLOCA if (uno_args[ nPos ] && uno_args[ nPos ] != &uno_args_mem[ nPos ]) free( uno_args[ nPos ] ); #endif } } if (typelib_TypeClass_VOID != return_type->eTypeClass) { // convert uno return value jvalue java_ret; try { map_to_java( jni, &java_ret, uno_ret, return_type, 0, true /* in */, false /* no out */, true /* special_wrapped_integral_types */ ); } catch (...) { uno_type_destructData( uno_ret, return_type, 0 ); #ifdef BROKEN_ALLOCA free( mem ); #endif throw; } if (typelib_TypeClass_DOUBLE < return_type->eTypeClass && typelib_TypeClass_ENUM != return_type->eTypeClass) // opt { uno_type_destructData( uno_ret, return_type, 0 ); } #ifdef BROKEN_ALLOCA free( mem ); #endif return java_ret.l; } #ifdef BROKEN_ALLOCA free( mem ); #endif return 0; // void return } else // exception occured { // destruct uno in args for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) { typelib_MethodParameter const & param = pParams[ nPos ]; if (param.bIn) uno_type_destructData( uno_args[ nPos ], param.pTypeRef, 0 ); #ifdef BROKEN_ALLOCA if (uno_args[ nPos ] && uno_args[ nPos ] != &uno_args_mem[ nPos ]) free( uno_args[ nPos ] ); #endif } handle_uno_exc( jni, uno_exc ); #ifdef BROKEN_ALLOCA free( mem ); #endif return 0; } } } using namespace ::jni_uno; extern "C" { //------------------------------------------------------------------------------ JNIEXPORT jobject JNICALL Java_com_sun_star_bridges_jni_1uno_JNI_1proxy_dispatch_1call( JNIEnv * jni_env, jobject jo_proxy, jlong bridge_handle, jstring, jstring jo_method, jobjectArray jo_args /* may be 0 */ ) SAL_THROW_EXTERN_C() { Bridge const * bridge = reinterpret_cast< Bridge const * >( bridge_handle ); JNI_info const * jni_info = bridge->m_jni_info; JNI_context jni( jni_info, jni_env, static_cast< jobject >( reinterpret_cast< ::jvmaccess::UnoVirtualMachine * >( bridge->m_java_env->pContext )->getClassLoader() ) ); OUString method_name; try { method_name = jstring_to_oustring( jni, jo_method ); #if OSL_DEBUG_LEVEL > 1 { OUStringBuffer trace_buf( 64 ); trace_buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("java->uno call: ") ); trace_buf.append( method_name ); trace_buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(" on oid ") ); JLocalAutoRef jo_oid( jni, jni->GetObjectField( jo_proxy, jni_info->m_field_JNI_proxy_m_oid ) ); trace_buf.append( jstring_to_oustring( jni, (jstring) jo_oid.get() ) ); OString cstr_msg( OUStringToOString( trace_buf.makeStringAndClear(), RTL_TEXTENCODING_ASCII_US ) ); OSL_TRACE( cstr_msg.getStr() ); } #endif // special IQueryInterface.queryInterface() if (method_name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM("queryInterface") )) { // oid JLocalAutoRef jo_oid( jni, jni->GetObjectField( jo_proxy, jni_info->m_field_JNI_proxy_m_oid ) ); // type JLocalAutoRef jo_type( jni, jni->GetObjectArrayElement( jo_args, 0 ) ); jni.ensure_no_exception(); JLocalAutoRef jo_type_name( jni, jni->GetObjectField( jo_type.get(), jni_info->m_field_Type__typeName ) ); if (! jo_type_name.is()) { throw BridgeRuntimeError( OUSTR("incomplete type object: no type name!") + jni.get_stack_trace() ); } OUString type_name( jstring_to_oustring( jni, (jstring) jo_type_name.get() ) ); JNI_type_info const * info = jni_info->get_type_info( jni, type_name ); if (typelib_TypeClass_INTERFACE != info->m_td.get()->eTypeClass) { throw BridgeRuntimeError( OUSTR("queryInterface() call demands an INTERFACE type!") ); } JNI_interface_type_info const * iface_info = static_cast< JNI_interface_type_info const * >( info ); // getRegisteredInterface() already tested in JNI_proxy: // perform queryInterface call on binary uno interface uno_Interface * pUnoI = reinterpret_cast< uno_Interface * >( jni->GetLongField( jo_proxy, jni_info->m_field_JNI_proxy_m_receiver_handle ) ); uno_Any uno_ret; void * uno_args[] = { &iface_info->m_td.get()->pWeakRef }; uno_Any uno_exc_holder; uno_Any * uno_exc = &uno_exc_holder; // call binary uno (*pUnoI->pDispatcher)( pUnoI, jni_info->m_XInterface_queryInterface_td.get(), &uno_ret, uno_args, &uno_exc ); if (0 == uno_exc) { jobject jo_ret = 0; if (typelib_TypeClass_INTERFACE == uno_ret.pType->eTypeClass) { uno_Interface * pUnoRet = (uno_Interface *) uno_ret.pReserved; if (0 != pUnoRet) { try { jo_ret = bridge->map_to_java( jni, pUnoRet, iface_info ); } catch (...) { uno_any_destruct( &uno_ret, 0 ); throw; } } } uno_any_destruct( &uno_ret, 0 ); return jo_ret; } else { bridge->handle_uno_exc( jni, uno_exc ); return 0; } } typelib_InterfaceTypeDescription * td = reinterpret_cast< typelib_InterfaceTypeDescription * >( jni->GetLongField( jo_proxy, jni_info->m_field_JNI_proxy_m_td_handle ) ); uno_Interface * pUnoI = reinterpret_cast< uno_Interface * >( jni->GetLongField( jo_proxy, jni_info->m_field_JNI_proxy_m_receiver_handle ) ); typelib_TypeDescriptionReference ** ppAllMembers = td->ppAllMembers; for ( sal_Int32 nPos = td->nAllMembers; nPos--; ) { // try to avoid getting typedescription as long as possible, // because of a Mutex.acquire() in // typelib_typedescriptionreference_getDescription() typelib_TypeDescriptionReference * member_type = ppAllMembers[ nPos ]; // check method_name against fully qualified type_name // of member_type; type_name is of the form // "::" *(":@" "," ":" ) OUString const & type_name = OUString::unacquired( &member_type->pTypeName ); sal_Int32 offset = type_name.indexOf( ':' ) + 2; OSL_ASSERT( offset >= 2 && offset < type_name.getLength() && type_name[offset - 1] == ':' ); sal_Int32 remainder = type_name.getLength() - offset; if (typelib_TypeClass_INTERFACE_METHOD == member_type->eTypeClass) { if ((method_name.getLength() == remainder || (method_name.getLength() < remainder && type_name[offset + method_name.getLength()] == ':')) && type_name.match(method_name, offset)) { TypeDescr member_td( member_type ); typelib_InterfaceMethodTypeDescription * method_td = reinterpret_cast< typelib_InterfaceMethodTypeDescription * >( member_td.get() ); return bridge->call_uno( jni, pUnoI, member_td.get(), method_td->pReturnTypeRef, method_td->nParams, method_td->pParams, jo_args ); } } else // attribute { OSL_ASSERT( typelib_TypeClass_INTERFACE_ATTRIBUTE == member_type->eTypeClass ); if (method_name.getLength() >= 3 && (method_name.getLength() - 3 == remainder || (method_name.getLength() - 3 < remainder && type_name[ offset + (method_name.getLength() - 3)] == ':')) && method_name[1] == 'e' && method_name[2] == 't' && rtl_ustr_compare_WithLength( type_name.getStr() + offset, method_name.getLength() - 3, method_name.getStr() + 3, method_name.getLength() - 3) == 0) { if ('g' == method_name[ 0 ]) { TypeDescr member_td( member_type ); typelib_InterfaceAttributeTypeDescription * attr_td = reinterpret_cast< typelib_InterfaceAttributeTypeDescription * >( member_td.get() ); return bridge->call_uno( jni, pUnoI, member_td.get(), attr_td->pAttributeTypeRef, 0, 0, jo_args ); } else if ('s' == method_name[ 0 ]) { TypeDescr member_td( member_type ); typelib_InterfaceAttributeTypeDescription * attr_td = reinterpret_cast< typelib_InterfaceAttributeTypeDescription * >( member_td.get() ); if (! attr_td->bReadOnly) { typelib_MethodParameter param; param.pTypeRef = attr_td->pAttributeTypeRef; param.bIn = sal_True; param.bOut = sal_False; return bridge->call_uno( jni, pUnoI, member_td.get(), jni_info->m_void_type.getTypeLibType(), 1, ¶m, jo_args ); } } } } } // the thing that should not be... no method info found! OUStringBuffer buf( 64 ); buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "calling undeclared function on interface ") ); buf.append( OUString::unacquired( &((typelib_TypeDescription *)td)->pTypeName ) ); buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(": ") ); buf.append( method_name ); buf.append( jni.get_stack_trace() ); throw BridgeRuntimeError( buf.makeStringAndClear() ); } catch (BridgeRuntimeError & err) { OUStringBuffer buf( 128 ); buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("[jni_uno bridge error] " "Java calling UNO method ") ); buf.append( method_name ); buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(": ") ); buf.append( err.m_message ); // notify RuntimeException OString cstr_msg( OUStringToOString( buf.makeStringAndClear(), RTL_TEXTENCODING_JAVA_UTF8 ) ); OSL_ENSURE( 0, cstr_msg.getStr() ); if (jni->ThrowNew(jni_info->m_class_RuntimeException, cstr_msg.getStr()) != 0) { OSL_ASSERT( false ); } return 0; } catch (::jvmaccess::VirtualMachine::AttachGuard::CreationException &) { OString cstr_msg( OString( RTL_CONSTASCII_STRINGPARAM( "[jni_uno bridge error] " "attaching current thread to java failed!") ) + OUStringToOString( jni.get_stack_trace(), RTL_TEXTENCODING_JAVA_UTF8 ) ); OSL_ENSURE( 0, cstr_msg.getStr() ); if (jni->ThrowNew(jni_info->m_class_RuntimeException, cstr_msg.getStr()) != 0) { OSL_ASSERT( false ); } return 0; } } //------------------------------------------------------------------------------ JNIEXPORT void JNICALL Java_com_sun_star_bridges_jni_1uno_JNI_1proxy_finalize__J( JNIEnv * jni_env, jobject jo_proxy, jlong bridge_handle ) SAL_THROW_EXTERN_C() { Bridge const * bridge = reinterpret_cast< Bridge const * >( bridge_handle ); JNI_info const * jni_info = bridge->m_jni_info; JNI_context jni( jni_info, jni_env, static_cast< jobject >( reinterpret_cast< ::jvmaccess::UnoVirtualMachine * >( bridge->m_java_env->pContext )->getClassLoader() ) ); uno_Interface * pUnoI = reinterpret_cast< uno_Interface * >( jni->GetLongField( jo_proxy, jni_info->m_field_JNI_proxy_m_receiver_handle ) ); typelib_TypeDescription * td = reinterpret_cast< typelib_TypeDescription * >( jni->GetLongField( jo_proxy, jni_info->m_field_JNI_proxy_m_td_handle ) ); #if OSL_DEBUG_LEVEL > 1 { JLocalAutoRef jo_oid( jni, jni->GetObjectField( jo_proxy, jni_info->m_field_JNI_proxy_m_oid ) ); OUString oid( jstring_to_oustring( jni, (jstring) jo_oid.get() ) ); OString cstr_msg( OUStringToOString( OUSTR("freeing java uno proxy: ") + oid, RTL_TEXTENCODING_ASCII_US ) ); OSL_TRACE( cstr_msg.getStr() ); } #endif // revoke from uno env; has already been revoked from java env (*bridge->m_uno_env->revokeInterface)( bridge->m_uno_env, pUnoI ); // release receiver (*pUnoI->release)( pUnoI ); // release typedescription handle typelib_typedescription_release( td ); // release bridge handle bridge->release(); } }