ucb/source/ucp/gio/gio_provider.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.
   4  *
   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 #include <sal/log.hxx>
  21 #include <ucbhelper/contenthelper.hxx>
  22 #include <ucbhelper/macros.hxx>
  23 #include <cppuhelper/queryinterface.hxx>
  24 #include <cppuhelper/weak.hxx>
  25 #include <com/sun/star/ucb/ContentCreationException.hpp>
  26 #include <com/sun/star/ucb/IllegalIdentifierException.hpp>
  27 #include "gio_provider.hxx"
  28 #include "gio_content.hxx"
  29
  30 namespace gio
  31 {
  32 css::uno::Reference< css::ucb::XContent > SAL_CALL
  33 ContentProvider::queryContent(
  34             const css::uno::Reference< css::ucb::XContentIdentifier >& Identifier )
  35 {
  36     SAL_INFO("ucb.ucp.gio", "QueryContent: " << Identifier->getContentIdentifier());
  37     osl::MutexGuard aGuard( m_aMutex );
  38
  39     // Check, if a content with given id already exists...
  40     css::uno::Reference< css::ucb::XContent > xContent = queryExistingContent( Identifier );
  41     if ( xContent.is() )
  42         return xContent;
  43
  44     try
  45     {
  46         xContent = new ::gio::Content(m_xContext, this, Identifier);
  47     }
  48     catch ( css::ucb::ContentCreationException const & )
  49     {
  50         throw css::ucb::IllegalIdentifierException();
  51     }
  52
  53     if ( !xContent->getIdentifier().is() )
  54         throw css::ucb::IllegalIdentifierException();
  55
  56     return xContent;
  57 }
  58
  59 ContentProvider::ContentProvider(
  60     const css::uno::Reference< css::uno::XComponentContext >& rxContext )
  61 : ::ucbhelper::ContentProviderImplHelper( rxContext )
  62 {
  63 }
  64
  65 ContentProvider::~ContentProvider()
  66 {
  67 }
  68
  69 // XInterface
  70 void SAL_CALL ContentProvider::acquire()
  71     noexcept
  72 {
  73     OWeakObject::acquire();
  74 }
  75
  76 void SAL_CALL ContentProvider::release()
  77     noexcept
  78 {
  79     OWeakObject::release();
  80 }
  81
  82 css::uno::Any SAL_CALL ContentProvider::queryInterface( const css::uno::Type & rType )
  83 {
  84     css::uno::Any aRet = cppu::queryInterface( rType,
  85                                                static_cast< css::lang::XTypeProvider* >(this),
  86                                                static_cast< css::lang::XServiceInfo* >(this),
  87                                                static_cast< css::ucb::XContentProvider* >(this)
  88                                                );
  89     return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
  90 }
  91
  92 XTYPEPROVIDER_IMPL_3( ContentProvider,
  93                       css::lang::XTypeProvider,
  94                       css::lang::XServiceInfo,
  95                       css::ucb::XContentProvider );
  96
  97 css::uno::Sequence< OUString > SAL_CALL ContentProvider::getSupportedServiceNames()
  98 {
  99     return { u"com.sun.star.ucb.GIOContentProvider"_ustr };
 100 }
 101
 102 OUString SAL_CALL ContentProvider::getImplementationName()
 103 {
 104     return u"com.sun.star.comp.GIOContentProvider"_ustr;
 105 }
 106
 107 sal_Bool SAL_CALL ContentProvider::supportsService(const OUString& aServiceName)
 108 {
 109     return cppu::supportsService(this, aServiceName);
 110 }
 111
 112
 113 }
 114
 115 // gio creates threads we don't want in online's forkit
 116 static bool isDisabled()
 117 {
 118     const char *pDisable = getenv("UNODISABLELIBRARY");
 119     if (!pDisable)
 120         return false;
 121     OString aDisable(pDisable, strlen(pDisable));
 122     return aDisable.indexOf("ucpgio1") >= 0;
 123 }
 124
 125
 126
 127 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
 128 ucb_gio_ContentProvider_get_implementation(
 129     css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
 130 {
 131     if (isDisabled())
 132         return nullptr;
 133 #if !GLIB_CHECK_VERSION(2,36,0)
 134     g_type_init();
 135 #endif
 136     return cppu::acquire(new gio::ContentProvider(context));
 137 }
 138
 139 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */