javaunohelper/source/vm.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <sal/config.h>
  22
  23 #include "vm.hxx"
  24
  25 #include <com/sun/star/beans/NamedValue.hpp>
  26 #include <com/sun/star/lang/XSingleComponentFactory.hpp>
  27 #include <cppuhelper/compbase.hxx>
  28 #include <cppuhelper/component_context.hxx>
  29 #include <jvmaccess/virtualmachine.hxx>
  30 #include <jvmaccess/unovirtualmachine.hxx>
  31 #include <osl/mutex.hxx>
  32
  33 namespace {
  34
  35 struct MutexHolder
  36 {
  37     ::osl::Mutex m_mutex;
  38 };
  39 typedef ::cppu::WeakComponentImplHelper<
  40     css::lang::XSingleComponentFactory > t_impl;
  41
  42 class SingletonFactory : public MutexHolder, public t_impl
  43 {
  44     ::rtl::Reference< ::jvmaccess::UnoVirtualMachine > m_vm_access;
  45
  46 protected:
  47     virtual void SAL_CALL disposing() override;
  48
  49 public:
  50     explicit SingletonFactory( ::rtl::Reference< ::jvmaccess::UnoVirtualMachine > const & vm_access )
  51         : t_impl( m_mutex ),
  52           m_vm_access( vm_access )
  53         {}
  54
  55     // XSingleComponentFactory impl
  56     virtual css::uno::Reference< css::uno::XInterface > SAL_CALL createInstanceWithContext(
  57         css::uno::Reference< css::uno::XComponentContext > const & xContext ) override;
  58     virtual css::uno::Reference< css::uno::XInterface > SAL_CALL createInstanceWithArgumentsAndContext(
  59         css::uno::Sequence< css::uno::Any > const & args, css::uno::Reference< css::uno::XComponentContext > const & xContext ) override;
  60 };
  61
  62 void SingletonFactory::disposing()
  63 {
  64     m_vm_access.clear();
  65 }
  66
  67 css::uno::Reference< css::uno::XInterface > SingletonFactory::createInstanceWithContext(
  68     css::uno::Reference< css::uno::XComponentContext > const & xContext )
  69 {
  70     sal_Int64 handle = reinterpret_cast< sal_Int64 >( m_vm_access.get() );
  71     css::uno::Any arg( css::beans::NamedValue( "UnoVirtualMachine", css::uno::makeAny( handle ) ) );
  72     return xContext->getServiceManager()->createInstanceWithArgumentsAndContext(
  73         "com.sun.star.java.JavaVirtualMachine",
  74         css::uno::Sequence< css::uno::Any >( &arg, 1 ), xContext );
  75 }
  76
  77 css::uno::Reference< css::uno::XInterface > SingletonFactory::createInstanceWithArgumentsAndContext(
  78     css::uno::Sequence< css::uno::Any > const & args, css::uno::Reference< css::uno::XComponentContext > const & xContext )
  79 {
  80     return xContext->getServiceManager()->createInstanceWithArgumentsAndContext(
  81         "com.sun.star.java.JavaVirtualMachine",
  82         args, xContext );
  83 }
  84
  85 }
  86
  87 namespace javaunohelper {
  88
  89 ::rtl::Reference< ::jvmaccess::UnoVirtualMachine > create_vm_access(
  90     JNIEnv * jni_env, jobject loader )
  91 {
  92     JavaVM * vm;
  93     jni_env->GetJavaVM( &vm );
  94     try {
  95         return new ::jvmaccess::UnoVirtualMachine(
  96             new ::jvmaccess::VirtualMachine(
  97                 vm, JNI_VERSION_1_2, false, jni_env ),
  98             loader );
  99     } catch ( ::jvmaccess::UnoVirtualMachine::CreationException & ) {
 100         throw css::uno::RuntimeException( "jvmaccess::UnoVirtualMachine::CreationException occurred" );
 101     }
 102 }
 103
 104 css::uno::Reference< css::uno::XComponentContext > install_vm_singleton(
 105     css::uno::Reference< css::uno::XComponentContext > const & xContext,
 106     ::rtl::Reference< ::jvmaccess::UnoVirtualMachine > const & vm_access )
 107 {
 108     css::uno::Reference< css::lang::XSingleComponentFactory > xFac( new SingletonFactory( vm_access ) );
 109     ::cppu::ContextEntry_Init entry(
 110         "/singletons/com.sun.star.java.theJavaVirtualMachine",
 111         css::uno::makeAny( xFac ), true );
 112     return ::cppu::createComponentContext( &entry, 1, xContext );
 113 }
 114
 115 }
 116
 117 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */