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Diffstat (limited to 'javaunohelper/source/bootstrap.cxx')
| -rw-r--r-- | javaunohelper/source/bootstrap.cxx | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/javaunohelper/source/bootstrap.cxx b/javaunohelper/source/bootstrap.cxx new file mode 100644 index 000000000..1cacea950 --- /dev/null +++ b/javaunohelper/source/bootstrap.cxx @@ -0,0 +1,182 @@ +/* -*- 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 <osl/diagnose.h> + +#include <rtl/bootstrap.hxx> +#include <rtl/string.hxx> + +#include <uno/lbnames.h> +#include <uno/mapping.hxx> +#include <uno/environment.hxx> + +#include <cppuhelper/bootstrap.hxx> + +#include <com/sun/star/lang/XComponent.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> + +#if defined __clang__ +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wunknown-attributes" +#endif +#include <jni.h> +#if defined __clang__ +#pragma clang diagnostic pop +#endif + +#include <jvmaccess/unovirtualmachine.hxx> + +#include "juhx-export-functions.hxx" +#include "vm.hxx" + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; + +namespace javaunohelper +{ + +static OUString jstring_to_oustring( jstring jstr, JNIEnv * jni_env ) +{ + OSL_ASSERT( sizeof (sal_Unicode) == sizeof (jchar) ); + jsize len = jni_env->GetStringLength( jstr ); + rtl_uString * ustr = + static_cast<rtl_uString *>(std::malloc( sizeof (rtl_uString) + (len * sizeof (sal_Unicode)) )); + assert(ustr); + jni_env->GetStringRegion( jstr, 0, len, reinterpret_cast<jchar *>(ustr->buffer) ); + OSL_ASSERT( !jni_env->ExceptionCheck() ); + ustr->refCount = 1; + ustr->length = len; + ustr->buffer[ len ] = '\0'; + return OUString( ustr, SAL_NO_ACQUIRE ); +} + +} + + +jobject Java_com_sun_star_comp_helper_Bootstrap_cppuhelper_1bootstrap( + JNIEnv * jni_env, SAL_UNUSED_PARAMETER jclass, jstring juno_rc, jobjectArray jpairs, + jobject loader ) +{ + try + { + if (nullptr != jpairs) + { + jsize nPos = 0, len = jni_env->GetArrayLength( jpairs ); + while (nPos < len) + { + // name + jstring jstr = static_cast<jstring>(jni_env->GetObjectArrayElement( jpairs, nPos )); + if (jni_env->ExceptionCheck()) + { + jni_env->ExceptionClear(); + throw RuntimeException( "index out of bounds?!" ); + } + if (nullptr != jstr) + { + OUString name( ::javaunohelper::jstring_to_oustring( jstr, jni_env ) ); + // value + jstr = static_cast<jstring>(jni_env->GetObjectArrayElement( jpairs, nPos +1 )); + if (jni_env->ExceptionCheck()) + { + jni_env->ExceptionClear(); + throw RuntimeException( "index out of bounds?!" ); + } + if (nullptr != jstr) + { + OUString value( ::javaunohelper::jstring_to_oustring( jstr, jni_env ) ); + + // set bootstrap parameter + ::rtl::Bootstrap::set( name, value ); + } + } + nPos += 2; + } + } + + // bootstrap uno + Reference< XComponentContext > xContext; + if (nullptr == juno_rc) + { + xContext = ::cppu::defaultBootstrap_InitialComponentContext(); + } + else + { + OUString uno_rc( ::javaunohelper::jstring_to_oustring( juno_rc, jni_env ) ); + xContext = ::cppu::defaultBootstrap_InitialComponentContext( uno_rc ); + } + + // create vm access + ::rtl::Reference< ::jvmaccess::UnoVirtualMachine > vm_access( + ::javaunohelper::create_vm_access( jni_env, loader ) ); + // wrap vm singleton entry + xContext = ::javaunohelper::install_vm_singleton( xContext, vm_access ); + + // get uno envs + OUString cpp_env_name = CPPU_CURRENT_LANGUAGE_BINDING_NAME; + OUString java_env_name = UNO_LB_JAVA; + Environment java_env, cpp_env; + uno_getEnvironment(reinterpret_cast<uno_Environment **>(&cpp_env), cpp_env_name.pData, nullptr); + uno_getEnvironment(reinterpret_cast<uno_Environment **>(&java_env), java_env_name.pData, vm_access.get() ); + + // map to java + Mapping mapping( cpp_env.get(), java_env.get() ); + if (! mapping.is()) + { + Reference< lang::XComponent > xComp( xContext, UNO_QUERY ); + if (xComp.is()) + xComp->dispose(); + throw RuntimeException("cannot get mapping C++ <-> Java!" ); + } + + jobject jret = static_cast<jobject>(mapping.mapInterface( xContext.get(), cppu::UnoType<decltype(xContext)>::get() )); + jobject jlocal = jni_env->NewLocalRef( jret ); + jni_env->DeleteGlobalRef( jret ); + + return jlocal; + } + catch (const RuntimeException & exc) + { + jclass c = jni_env->FindClass( "com/sun/star/uno/RuntimeException" ); + if (nullptr != c) + { + SAL_WARN("javaunohelper", "forwarding RuntimeException: " << exc ); + OString cstr( OUStringToOString( + exc.Message, RTL_TEXTENCODING_JAVA_UTF8 ) ); + jni_env->ThrowNew( c, cstr.getStr() ); + } + } + catch (const Exception & exc) + { + jclass c = jni_env->FindClass( "com/sun/star/uno/Exception" ); + if (nullptr != c) + { + SAL_WARN("javaunohelper", "forwarding Exception: " << exc ); + OString cstr( OUStringToOString( + exc.Message, RTL_TEXTENCODING_JAVA_UTF8 ) ); + jni_env->ThrowNew( c, cstr.getStr() ); + } + } + + return nullptr; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |