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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /bridges/source/jni_uno/jni_uno2java.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'bridges/source/jni_uno/jni_uno2java.cxx')
-rw-r--r--bridges/source/jni_uno/jni_uno2java.cxx805
1 files changed, 805 insertions, 0 deletions
diff --git a/bridges/source/jni_uno/jni_uno2java.cxx b/bridges/source/jni_uno/jni_uno2java.cxx
new file mode 100644
index 000000000..8fd38ec31
--- /dev/null
+++ b/bridges/source/jni_uno/jni_uno2java.cxx
@@ -0,0 +1,805 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <atomic>
+#include <cassert>
+#include <cstddef>
+#include <memory>
+
+#include <sal/alloca.h>
+
+#include <com/sun/star/uno/RuntimeException.hpp>
+
+#include <rtl/ustrbuf.hxx>
+#include <utility>
+
+#include "jni_bridge.h"
+#include "jniunoenvironmentdata.hxx"
+
+namespace
+{
+extern "C"
+{
+
+
+void UNO_proxy_free( uno_ExtEnvironment * env, void * proxy )
+ SAL_THROW_EXTERN_C();
+
+
+void UNO_proxy_acquire( uno_Interface * pUnoI )
+ SAL_THROW_EXTERN_C();
+
+
+void UNO_proxy_release( uno_Interface * pUnoI )
+ SAL_THROW_EXTERN_C();
+
+
+void UNO_proxy_dispatch(
+ uno_Interface * pUnoI, typelib_TypeDescription const * member_td,
+ void * uno_ret, void * uno_args[], uno_Any ** uno_exc )
+ SAL_THROW_EXTERN_C();
+}
+}
+
+namespace jni_uno
+{
+
+
+void Bridge::handle_java_exc(
+ JNI_context const & jni,
+ JLocalAutoRef const & jo_exc, uno_Any * uno_exc ) const
+{
+ assert( jo_exc.is() );
+ if (! jo_exc.is())
+ {
+ throw BridgeRuntimeError(
+ "java exception occurred, but no java exception available!?" +
+ jni.get_stack_trace() );
+ }
+
+ JLocalAutoRef jo_class( jni, jni->GetObjectClass( jo_exc.get() ) );
+ JLocalAutoRef jo_class_name(
+ jni, jni->CallObjectMethodA(
+ jo_class.get(), getJniInfo()->m_method_Class_getName, nullptr ) );
+ jni.ensure_no_exception();
+ OUString exc_name(
+ jstring_to_oustring( jni, static_cast<jstring>(jo_class_name.get()) ) );
+
+ ::com::sun::star::uno::TypeDescription td( exc_name.pData );
+ if (!td.is() || (td.get()->eTypeClass != typelib_TypeClass_EXCEPTION))
+ {
+ // call toString()
+ JLocalAutoRef jo_descr(
+ jni, jni->CallObjectMethodA(
+ jo_exc.get(), getJniInfo()->m_method_Object_toString, nullptr ) );
+ jni.ensure_no_exception();
+ throw BridgeRuntimeError(
+ "non-UNO exception occurred: "
+ + jstring_to_oustring( jni, static_cast<jstring>(jo_descr.get()) )
+ + jni.get_stack_trace( jo_exc.get() ) );
+ }
+
+ std::unique_ptr< rtl_mem > uno_data( rtl_mem::allocate( td.get()->nSize ) );
+ jvalue val;
+ val.l = jo_exc.get();
+ map_to_uno(
+ jni, uno_data.get(), val, td.get()->pWeakRef, nullptr,
+ false /* no assign */, false /* no out param */ );
+
+#if OSL_DEBUG_LEVEL > 0
+ // patch Message, append stack trace
+ reinterpret_cast< ::com::sun::star::uno::Exception * >(
+ uno_data.get() )->Message += jni.get_stack_trace( jo_exc.get() );
+#endif
+
+ typelib_typedescriptionreference_acquire( td.get()->pWeakRef );
+ uno_exc->pType = td.get()->pWeakRef;
+ uno_exc->pData = uno_data.release();
+
+ SAL_INFO(
+ "bridges",
+ "exception occurred uno->java: [" << exc_name << "] "
+ << (static_cast<css::uno::Exception const *>(uno_exc->pData)
+ ->Message));
+}
+
+
+void Bridge::call_java(
+ jobject javaI, typelib_InterfaceTypeDescription * iface_td,
+ sal_Int32 local_member_index, sal_Int32 function_pos_offset,
+ typelib_TypeDescriptionReference * return_type,
+ typelib_MethodParameter * params, sal_Int32 nParams,
+ void * uno_ret, void * uno_args [], uno_Any ** uno_exc ) const
+{
+ assert( function_pos_offset == 0 || function_pos_offset == 1 );
+
+ JNI_guarded_context jni(
+ getJniInfo(),
+ static_cast<JniUnoEnvironmentData *>(m_java_env->pContext)->machine);
+
+ // assure fully initialized iface_td:
+ ::com::sun::star::uno::TypeDescription iface_holder;
+ if (! iface_td->aBase.bComplete) {
+ iface_holder = ::com::sun::star::uno::TypeDescription(
+ reinterpret_cast<typelib_TypeDescription *>(iface_td) );
+ iface_holder.makeComplete();
+ if (! iface_holder.get()->bComplete) {
+ throw BridgeRuntimeError(
+ "cannot make type complete: "
+ + OUString::unacquired(&iface_holder.get()->pTypeName)
+ + jni.get_stack_trace() );
+ }
+ iface_td = reinterpret_cast<typelib_InterfaceTypeDescription *>(
+ iface_holder.get() );
+ assert( iface_td->aBase.eTypeClass == typelib_TypeClass_INTERFACE );
+ }
+
+ // prepare java args, save param td
+ jvalue * java_args = static_cast<jvalue *>(alloca( sizeof (jvalue) * nParams ));
+
+ sal_Int32 nPos;
+ for ( nPos = 0; nPos < nParams; ++nPos )
+ {
+ try
+ {
+ typelib_MethodParameter const & param = params[ nPos ];
+ java_args[ nPos ].l = nullptr; // if out: build up array[ 1 ]
+ map_to_java(
+ jni, &java_args[ nPos ],
+ uno_args[ nPos ],
+ param.pTypeRef, nullptr,
+ param.bIn /* convert uno value */,
+ param.bOut /* build up array[ 1 ] */ );
+ }
+ catch (...)
+ {
+ // cleanup
+ for ( sal_Int32 n = 0; n < nPos; ++n )
+ {
+ typelib_MethodParameter const & param = params[ n ];
+ if (param.bOut ||
+ typelib_TypeClass_DOUBLE < param.pTypeRef->eTypeClass)
+ {
+ jni->DeleteLocalRef( java_args[ n ].l );
+ }
+ }
+ throw;
+ }
+ }
+
+ sal_Int32 base_members = iface_td->nAllMembers - iface_td->nMembers;
+ assert( base_members < iface_td->nAllMembers );
+ sal_Int32 base_members_function_pos =
+ iface_td->pMapMemberIndexToFunctionIndex[ base_members ];
+ sal_Int32 member_pos = base_members + local_member_index;
+ SAL_WARN_IF(
+ member_pos >= iface_td->nAllMembers, "bridges",
+ "member pos out of range");
+ sal_Int32 function_pos =
+ iface_td->pMapMemberIndexToFunctionIndex[ member_pos ]
+ + function_pos_offset;
+ SAL_WARN_IF(
+ (function_pos < base_members_function_pos
+ || function_pos >= iface_td->nMapFunctionIndexToMemberIndex),
+ "bridges", "illegal function index");
+ function_pos -= base_members_function_pos;
+
+ JNI_interface_type_info const * info =
+ static_cast< JNI_interface_type_info const * >(
+ getJniInfo()->get_type_info( jni, &iface_td->aBase ) );
+ jmethodID method_id = info->m_methods[ function_pos ];
+
+#if OSL_DEBUG_LEVEL > 0
+ JLocalAutoRef jo_method(
+ jni, jni->ToReflectedMethod( info->m_class, method_id, JNI_FALSE ) );
+ jni.ensure_no_exception();
+ JLocalAutoRef jo_descr1(
+ jni, jni->CallObjectMethodA(
+ jo_method.get(), getJniInfo()->m_method_Object_toString, nullptr ) );
+ jni.ensure_no_exception();
+ JLocalAutoRef jo_descr2(
+ jni,
+ jni->CallObjectMethodA(
+ javaI, getJniInfo()->m_method_Object_toString, nullptr ) );
+ jni.ensure_no_exception();
+ JLocalAutoRef jo_class( jni, jni->GetObjectClass( javaI ) );
+ JLocalAutoRef jo_descr3(
+ jni,
+ jni->CallObjectMethodA(
+ jo_class.get(), getJniInfo()->m_method_Object_toString, nullptr ) );
+ jni.ensure_no_exception();
+ SAL_INFO(
+ "bridges",
+ "calling " << jstring_to_oustring( jni, static_cast<jstring>(jo_descr1.get()) ) << " on "
+ << jstring_to_oustring( jni, static_cast<jstring>(jo_descr2.get()) ) << " ("
+ << jstring_to_oustring( jni, static_cast<jstring>(jo_descr3.get()) ) << ")");
+#endif
+
+ // complex return value
+ JLocalAutoRef java_ret( jni );
+
+ switch (return_type->eTypeClass)
+ {
+ case typelib_TypeClass_VOID:
+ jni->CallVoidMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_CHAR:
+ *static_cast<sal_Unicode *>(uno_ret) =
+ jni->CallCharMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_BOOLEAN:
+ *static_cast<sal_Bool *>(uno_ret) =
+ jni->CallBooleanMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_BYTE:
+ *static_cast<sal_Int8 *>(uno_ret) =
+ jni->CallByteMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_SHORT:
+ case typelib_TypeClass_UNSIGNED_SHORT:
+ *static_cast<sal_Int16 *>(uno_ret) =
+ jni->CallShortMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_LONG:
+ case typelib_TypeClass_UNSIGNED_LONG:
+ *static_cast<sal_Int32 *>(uno_ret) =
+ jni->CallIntMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_HYPER:
+ case typelib_TypeClass_UNSIGNED_HYPER:
+ *static_cast<sal_Int64 *>(uno_ret) =
+ jni->CallLongMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_FLOAT:
+ *static_cast<float *>(uno_ret) =
+ jni->CallFloatMethodA( javaI, method_id, java_args );
+ break;
+ case typelib_TypeClass_DOUBLE:
+ *static_cast<double *>(uno_ret) =
+ jni->CallDoubleMethodA( javaI, method_id, java_args );
+ break;
+ default:
+ java_ret.reset(
+ jni->CallObjectMethodA( javaI, method_id, java_args ) );
+ break;
+ }
+
+ if (jni->ExceptionCheck())
+ {
+ JLocalAutoRef jo_exc( jni, jni->ExceptionOccurred() );
+ jni->ExceptionClear();
+
+ // release temp java local refs
+ for ( nPos = 0; nPos < nParams; ++nPos )
+ {
+ typelib_MethodParameter const & param = params[ nPos ];
+ if (param.bOut ||
+ typelib_TypeClass_DOUBLE < param.pTypeRef->eTypeClass)
+ {
+ jni->DeleteLocalRef( java_args[ nPos ].l );
+ }
+ }
+
+ handle_java_exc( jni, jo_exc, *uno_exc );
+ }
+ else // no exception
+ {
+ for ( nPos = 0; nPos < nParams; ++nPos )
+ {
+ typelib_MethodParameter const & param = params[ nPos ];
+ if (param.bOut)
+ {
+ try
+ {
+ map_to_uno(
+ jni, uno_args[ nPos ],
+ java_args[ nPos ], param.pTypeRef, nullptr,
+ param.bIn /* assign if inout */,
+ true /* out param */ );
+ }
+ catch (...)
+ {
+ // cleanup uno pure out
+ for ( sal_Int32 n = 0; n < nPos; ++n )
+ {
+ typelib_MethodParameter const & p = params[ n ];
+ if (! p.bIn)
+ {
+ uno_type_destructData(
+ uno_args[ n ], p.pTypeRef, nullptr );
+ }
+ }
+ // cleanup java temp local refs
+ for ( ; nPos < nParams; ++nPos )
+ {
+ typelib_MethodParameter const & p = params[ nPos ];
+ if (p.bOut ||
+ typelib_TypeClass_DOUBLE <
+ p.pTypeRef->eTypeClass)
+ {
+ jni->DeleteLocalRef( java_args[ nPos ].l );
+ }
+ }
+ throw;
+ }
+ jni->DeleteLocalRef( java_args[ nPos ].l );
+ }
+ else // pure temp in param
+ {
+ if (typelib_TypeClass_DOUBLE < param.pTypeRef->eTypeClass)
+ jni->DeleteLocalRef( java_args[ nPos ].l );
+ }
+ }
+
+ // return value
+ if (typelib_TypeClass_DOUBLE < return_type->eTypeClass)
+ {
+ try
+ {
+ jvalue val;
+ val.l = java_ret.get();
+ map_to_uno(
+ jni, uno_ret, val, return_type, nullptr,
+ false /* no assign */, false /* no out param */ );
+ }
+ catch (...)
+ {
+ // cleanup uno pure out
+ for ( sal_Int32 i = 0; i < nParams; ++i )
+ {
+ typelib_MethodParameter const & param = params[ i ];
+ if (! param.bIn)
+ {
+ uno_type_destructData(
+ uno_args[ i ], param.pTypeRef, nullptr );
+ }
+ }
+ throw;
+ }
+ } // else: already set integral uno return value
+
+ // no exception occurred
+ *uno_exc = nullptr;
+ }
+}
+
+namespace {
+
+// a UNO proxy wrapping a Java interface
+struct UNO_proxy : public uno_Interface
+{
+ mutable std::atomic<std::size_t> m_ref;
+ Bridge const * m_bridge;
+
+ // mapping information
+ jobject m_javaI;
+ jstring m_jo_oid;
+ OUString m_oid;
+ JNI_interface_type_info const * m_type_info;
+
+ inline void acquire() const;
+ inline void release() const;
+
+ // ctor
+ inline UNO_proxy(
+ JNI_context const & jni, Bridge const * bridge,
+ jobject javaI, jstring jo_oid, OUString oid,
+ JNI_interface_type_info const * info );
+};
+
+}
+
+inline UNO_proxy::UNO_proxy(
+ JNI_context const & jni, Bridge const * bridge,
+ jobject javaI, jstring jo_oid, OUString oid,
+ JNI_interface_type_info const * info )
+ : m_ref( 1 ),
+ m_oid(std::move( oid )),
+ m_type_info( info )
+{
+ JNI_info const * jni_info = bridge->getJniInfo();
+ JLocalAutoRef jo_string_array(
+ jni, jni->NewObjectArray( 1, jni_info->m_class_String, jo_oid ) );
+ jni.ensure_no_exception();
+ jvalue args[ 3 ];
+ args[ 0 ].l = javaI;
+ args[ 1 ].l = jo_string_array.get();
+ args[ 2 ].l = info->m_type;
+ jobject jo_iface = jni->CallObjectMethodA(
+ jni_info->m_object_java_env,
+ jni_info->m_method_IEnvironment_registerInterface, args );
+ jni.ensure_no_exception();
+
+ m_javaI = jni->NewGlobalRef( jo_iface );
+ m_jo_oid = static_cast<jstring>(jni->NewGlobalRef( jo_oid ));
+ bridge->acquire();
+ m_bridge = bridge;
+
+ // uno_Interface
+ uno_Interface::acquire = UNO_proxy_acquire;
+ uno_Interface::release = UNO_proxy_release;
+ uno_Interface::pDispatcher = UNO_proxy_dispatch;
+}
+
+
+inline void UNO_proxy::acquire() const
+{
+ if (++m_ref == 1)
+ {
+ // rebirth of proxy zombie
+ void * that = const_cast< UNO_proxy * >( this );
+ // register at uno env
+ (*m_bridge->m_uno_env->registerProxyInterface)(
+ m_bridge->m_uno_env, &that,
+ UNO_proxy_free, m_oid.pData,
+ reinterpret_cast<typelib_InterfaceTypeDescription *>(m_type_info->m_td.get()) );
+ assert( this == that );
+ }
+}
+
+
+inline void UNO_proxy::release() const
+{
+ if (--m_ref == 0)
+ {
+ // revoke from uno env on last release
+ (*m_bridge->m_uno_env->revokeInterface)(
+ m_bridge->m_uno_env, const_cast< UNO_proxy * >( this ) );
+ }
+}
+
+
+uno_Interface * Bridge::map_to_uno(
+ JNI_context const & jni,
+ jobject javaI, JNI_interface_type_info const * info ) const
+{
+ JLocalAutoRef jo_oid( jni, compute_oid( jni, javaI ) );
+ OUString oid( jstring_to_oustring( jni, static_cast<jstring>(jo_oid.get()) ) );
+
+ uno_Interface * pUnoI = nullptr;
+ (*m_uno_env->getRegisteredInterface)(
+ m_uno_env, reinterpret_cast<void **>(&pUnoI),
+ oid.pData, reinterpret_cast<typelib_InterfaceTypeDescription *>(info->m_td.get()) );
+
+ if (pUnoI == nullptr) // no existing interface, register new proxy
+ {
+ // refcount initially 1
+ pUnoI = new UNO_proxy(
+ jni, this,
+ javaI, static_cast<jstring>(jo_oid.get()), oid, info );
+
+ (*m_uno_env->registerProxyInterface)(
+ m_uno_env, reinterpret_cast<void **>(&pUnoI),
+ UNO_proxy_free,
+ oid.pData, reinterpret_cast<typelib_InterfaceTypeDescription *>(info->m_td.get()) );
+ }
+ return pUnoI;
+}
+
+}
+
+using namespace ::jni_uno;
+
+namespace
+{
+extern "C"
+{
+
+
+void UNO_proxy_free( uno_ExtEnvironment * env, void * proxy )
+ SAL_THROW_EXTERN_C()
+{
+ UNO_proxy * that = static_cast< UNO_proxy * >( proxy );
+ Bridge const * bridge = that->m_bridge;
+
+ assert(env == bridge->m_uno_env); (void) env;
+ SAL_INFO("bridges", "freeing binary uno proxy: " << that->m_oid);
+
+ try
+ {
+ JNI_guarded_context jni(
+ bridge->getJniInfo(),
+ (static_cast<JniUnoEnvironmentData *>(bridge->m_java_env->pContext)
+ ->machine));
+
+ jni->DeleteGlobalRef( that->m_javaI );
+ jni->DeleteGlobalRef( that->m_jo_oid );
+ }
+ catch (BridgeRuntimeError & err)
+ {
+ SAL_WARN(
+ "bridges",
+ "ignoring BridgeRuntimeError \"" << err.m_message << "\"");
+ }
+ catch (::jvmaccess::VirtualMachine::AttachGuard::CreationException &)
+ {
+ SAL_WARN("bridges", "attaching current thread to java failed");
+ }
+
+ bridge->release();
+#if OSL_DEBUG_LEVEL > 0
+ *reinterpret_cast<int *>(that) = 0xdeadcafe;
+#endif
+ delete that;
+}
+
+
+void UNO_proxy_acquire( uno_Interface * pUnoI )
+ SAL_THROW_EXTERN_C()
+{
+ UNO_proxy const * that = static_cast< UNO_proxy const * >( pUnoI );
+ that->acquire();
+}
+
+
+void UNO_proxy_release( uno_Interface * pUnoI )
+ SAL_THROW_EXTERN_C()
+{
+ UNO_proxy const * that = static_cast< UNO_proxy const * >( pUnoI );
+ that->release();
+}
+
+
+void UNO_proxy_dispatch(
+ uno_Interface * pUnoI, typelib_TypeDescription const * member_td,
+ void * uno_ret, void * uno_args [], uno_Any ** uno_exc )
+ SAL_THROW_EXTERN_C()
+{
+ UNO_proxy const * that = static_cast< UNO_proxy const * >( pUnoI );
+ Bridge const * bridge = that->m_bridge;
+
+ SAL_INFO(
+ "bridges",
+ "uno->java call: " << OUString::unacquired(&member_td->pTypeName)
+ << " on oid " << that->m_oid);
+
+ try
+ {
+ switch (member_td->eTypeClass)
+ {
+ case typelib_TypeClass_INTERFACE_ATTRIBUTE:
+ {
+ typelib_InterfaceAttributeTypeDescription const * attrib_td =
+ reinterpret_cast<
+ typelib_InterfaceAttributeTypeDescription const * >(
+ member_td );
+ com::sun::star::uno::TypeDescription attrib_holder;
+ while ( attrib_td->pBaseRef != nullptr ) {
+ attrib_holder = com::sun::star::uno::TypeDescription(
+ attrib_td->pBaseRef );
+ assert(
+ attrib_holder.get()->eTypeClass
+ == typelib_TypeClass_INTERFACE_ATTRIBUTE );
+ attrib_td = reinterpret_cast<
+ typelib_InterfaceAttributeTypeDescription * >(
+ attrib_holder.get() );
+ }
+ typelib_InterfaceTypeDescription * iface_td = attrib_td->pInterface;
+
+ if (uno_ret == nullptr) // is setter method
+ {
+ typelib_MethodParameter param;
+ param.pTypeRef = attrib_td->pAttributeTypeRef;
+ param.bIn = true;
+ param.bOut = false;
+
+ bridge->call_java(
+ that->m_javaI, iface_td,
+ attrib_td->nIndex, 1, // get, then set method
+ bridge->getJniInfo()->m_void_type.getTypeLibType(),
+ &param, 1,
+ nullptr, uno_args, uno_exc );
+ }
+ else // is getter method
+ {
+ bridge->call_java(
+ that->m_javaI, iface_td, attrib_td->nIndex, 0,
+ attrib_td->pAttributeTypeRef,
+ nullptr, 0, // no params
+ uno_ret, nullptr, uno_exc );
+ }
+ break;
+ }
+ case typelib_TypeClass_INTERFACE_METHOD:
+ {
+ typelib_InterfaceMethodTypeDescription const * method_td =
+ reinterpret_cast<
+ typelib_InterfaceMethodTypeDescription const * >(
+ member_td );
+ com::sun::star::uno::TypeDescription method_holder;
+ while ( method_td->pBaseRef != nullptr ) {
+ method_holder = com::sun::star::uno::TypeDescription(
+ method_td->pBaseRef );
+ assert(
+ method_holder.get()->eTypeClass
+ == typelib_TypeClass_INTERFACE_METHOD );
+ method_td = reinterpret_cast<
+ typelib_InterfaceMethodTypeDescription * >(
+ method_holder.get() );
+ }
+ typelib_InterfaceTypeDescription * iface_td = method_td->pInterface;
+
+ switch ( method_td->aBase.nPosition )
+ {
+ case 0: // queryInterface()
+ {
+ TypeDescr demanded_td(
+ *static_cast< typelib_TypeDescriptionReference ** >(
+ uno_args[ 0 ] ) );
+ if (demanded_td.get()->eTypeClass !=
+ typelib_TypeClass_INTERFACE)
+ {
+ throw BridgeRuntimeError(
+ "queryInterface() call demands an INTERFACE type!" );
+ }
+
+ uno_Interface * pInterface = nullptr;
+ (*bridge->m_uno_env->getRegisteredInterface)(
+ bridge->m_uno_env,
+ reinterpret_cast<void **>(&pInterface), that->m_oid.pData,
+ reinterpret_cast<typelib_InterfaceTypeDescription *>(demanded_td.get()) );
+
+ if (pInterface == nullptr)
+ {
+ JNI_info const * jni_info = bridge->getJniInfo();
+ JNI_guarded_context jni(
+ jni_info,
+ (static_cast<JniUnoEnvironmentData *>(
+ bridge->m_java_env->pContext)
+ ->machine));
+
+ JNI_interface_type_info const * info =
+ static_cast< JNI_interface_type_info const * >(
+ jni_info->get_type_info( jni, demanded_td.get() ) );
+
+ jvalue args[ 2 ];
+ args[ 0 ].l = info->m_type;
+ args[ 1 ].l = that->m_javaI;
+
+ JLocalAutoRef jo_ret(
+ jni, jni->CallStaticObjectMethodA(
+ jni_info->m_class_UnoRuntime,
+ jni_info->m_method_UnoRuntime_queryInterface,
+ args ) );
+
+ if (jni->ExceptionCheck())
+ {
+ JLocalAutoRef jo_exc( jni, jni->ExceptionOccurred() );
+ jni->ExceptionClear();
+ bridge->handle_java_exc( jni, jo_exc, *uno_exc );
+ }
+ else
+ {
+ if (jo_ret.is())
+ {
+ SAL_WARN_IF(
+ (jstring_to_oustring(
+ jni,
+ static_cast<jstring>(
+ JLocalAutoRef(
+ jni, compute_oid(jni, jo_ret.get()))
+ .get()))
+ != that->m_oid),
+ "bridges", "different oids");
+ // refcount initially 1
+ uno_Interface * pUnoI2 = new UNO_proxy(
+ jni, bridge, jo_ret.get(),
+ that->m_jo_oid, that->m_oid, info );
+
+ (*bridge->m_uno_env->registerProxyInterface)(
+ bridge->m_uno_env,
+ reinterpret_cast<void **>(&pUnoI2),
+ UNO_proxy_free, that->m_oid.pData,
+ reinterpret_cast<
+ typelib_InterfaceTypeDescription * >(
+ info->m_td.get() ) );
+
+ uno_any_construct(
+ static_cast<uno_Any *>(uno_ret), &pUnoI2,
+ demanded_td.get(), nullptr );
+ (*pUnoI2->release)( pUnoI2 );
+ }
+ else // object does not support demanded interface
+ {
+ uno_any_construct(
+ static_cast< uno_Any * >( uno_ret ),
+ nullptr, nullptr, nullptr );
+ }
+ // no exception occurred
+ *uno_exc = nullptr;
+ }
+ }
+ else
+ {
+ uno_any_construct(
+ static_cast< uno_Any * >( uno_ret ),
+ &pInterface, demanded_td.get(), nullptr );
+ (*pInterface->release)( pInterface );
+ *uno_exc = nullptr;
+ }
+ break;
+ }
+ case 1: // acquire this proxy
+ that->acquire();
+ *uno_exc = nullptr;
+ break;
+ case 2: // release this proxy
+ that->release();
+ *uno_exc = nullptr;
+ break;
+ default: // arbitrary method call
+ bridge->call_java(
+ that->m_javaI, iface_td, method_td->nIndex, 0,
+ method_td->pReturnTypeRef,
+ method_td->pParams, method_td->nParams,
+ uno_ret, uno_args, uno_exc );
+ break;
+ }
+ break;
+ }
+ default:
+ {
+ throw BridgeRuntimeError(
+ "illegal member type description!" );
+ }
+ }
+ }
+ catch (BridgeRuntimeError & err)
+ {
+ OUStringBuffer buf( 128 );
+ buf.append( "[jni_uno bridge error] UNO calling Java method " );
+ if (member_td->eTypeClass == typelib_TypeClass_INTERFACE_METHOD ||
+ member_td->eTypeClass == typelib_TypeClass_INTERFACE_ATTRIBUTE)
+ {
+ buf.append( OUString::unacquired(
+ &reinterpret_cast<
+ typelib_InterfaceMemberTypeDescription const * >(
+ member_td )->pMemberName ) );
+ }
+ buf.append( ": " );
+ buf.append( err.m_message );
+ // binary identical struct
+ ::com::sun::star::uno::RuntimeException exc(
+ buf.makeStringAndClear(),
+ ::com::sun::star::uno::Reference<
+ ::com::sun::star::uno::XInterface >() );
+ ::com::sun::star::uno::Type const & exc_type = cppu::UnoType<decltype(exc)>::get();
+ uno_type_any_construct( *uno_exc, &exc, exc_type.getTypeLibType(), nullptr );
+ SAL_INFO("bridges", exc.Message);
+ }
+ catch (::jvmaccess::VirtualMachine::AttachGuard::CreationException &)
+ {
+ // binary identical struct
+ ::com::sun::star::uno::RuntimeException exc(
+ "[jni_uno bridge error] attaching current thread to java failed!",
+ ::com::sun::star::uno::Reference<
+ ::com::sun::star::uno::XInterface >() );
+ ::com::sun::star::uno::Type const & exc_type = cppu::UnoType<decltype(exc)>::get();
+ uno_type_any_construct( *uno_exc, &exc, exc_type.getTypeLibType(), nullptr );
+ SAL_WARN("bridges", exc.Message);
+ }
+}
+
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */