configmgr/source/readonlyaccess.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
  10 #include <sal/config.h>
  11
  12 #include <com/sun/star/container/XHierarchicalNameAccess.hpp>
  13 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  14 #include <com/sun/star/lang/NotInitializedException.hpp>
  15 #include <com/sun/star/lang/XInitialization.hpp>
  16 #include <com/sun/star/lang/XServiceInfo.hpp>
  17 #include <com/sun/star/uno/Any.hxx>
  18 #include <com/sun/star/uno/Reference.hxx>
  19 #include <com/sun/star/uno/RuntimeException.hpp>
  20 #include <com/sun/star/uno/Sequence.hxx>
  21 #include <com/sun/star/uno/XInterface.hpp>
  22 #include <cppuhelper/implbase.hxx>
  23 #include <cppuhelper/supportsservice.hxx>
  24 #include <cppuhelper/weak.hxx>
  25 #include <osl/mutex.hxx>
  26 #include <rtl/ref.hxx>
  27 #include <rtl/ustring.hxx>
  28 #include <sal/types.h>
  29
  30 #include "components.hxx"
  31 #include "lock.hxx"
  32 #include "rootaccess.hxx"
  33
  34 namespace configmgr::read_only_access {
  35
  36 namespace {
  37
  38 class Service:
  39     public cppu::WeakImplHelper<
  40         css::lang::XServiceInfo, css::lang::XInitialization,
  41         css::container::XHierarchicalNameAccess >
  42 {
  43 public:
  44     explicit Service(
  45         css::uno::Reference< css::uno::XComponentContext > const & context):
  46         context_(context) {}
  47
  48 private:
  49     Service(const Service&) = delete;
  50     Service& operator=(const Service&) = delete;
  51
  52     virtual ~Service() override {}
  53
  54     virtual OUString SAL_CALL getImplementationName() override
  55     { return "com.sun.star.comp.configuration.ReadOnlyAccess"; }
  56
  57     virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
  58     { return cppu::supportsService(this, ServiceName); }
  59
  60     virtual css::uno::Sequence< OUString > SAL_CALL
  61     getSupportedServiceNames() override
  62     { return { "com.sun.star.configuration.ReadOnlyAccess" }; }
  63
  64     virtual void SAL_CALL initialize(
  65         css::uno::Sequence< css::uno::Any > const & aArguments) override;
  66
  67     virtual css::uno::Any SAL_CALL getByHierarchicalName(
  68         OUString const & aName) override
  69     { return getRoot()->getByHierarchicalName(aName); }
  70
  71     virtual sal_Bool SAL_CALL hasByHierarchicalName(OUString const & aName) override
  72     { return getRoot()->hasByHierarchicalName(aName); }
  73
  74     rtl::Reference< RootAccess > getRoot();
  75
  76     css::uno::Reference< css::uno::XComponentContext > context_;
  77
  78     osl::Mutex mutex_;
  79     rtl::Reference< RootAccess > root_;
  80 };
  81
  82 void Service::initialize(css::uno::Sequence< css::uno::Any > const & aArguments)
  83 {
  84     OUString locale;
  85     if (aArguments.getLength() != 1 || !(aArguments[0] >>= locale)) {
  86         throw css::lang::IllegalArgumentException(
  87             "not exactly one string argument",
  88             static_cast< cppu::OWeakObject * >(this), -1);
  89     }
  90     osl::MutexGuard g1(mutex_);
  91     if (root_.is()) {
  92         throw css::uno::RuntimeException(
  93             "already initialized", static_cast< cppu::OWeakObject * >(this));
  94     }
  95     osl::MutexGuard g2(*lock());
  96     Components & components = Components::getSingleton(context_);
  97     root_ = new RootAccess(components, "/", locale, false);
  98     components.addRootAccess(root_);
  99 }
 100
 101 rtl::Reference< RootAccess > Service::getRoot() {
 102     osl::MutexGuard g(mutex_);
 103     if (!root_.is()) {
 104         throw css::lang::NotInitializedException(
 105             "not initialized", static_cast< cppu::OWeakObject * >(this));
 106     }
 107     return root_;
 108 }
 109
 110 }
 111 }
 112
 113 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
 114 com_sun_star_comp_configuration_ReadOnlyAccess_get_implementation(
 115     css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
 116 {
 117     return cppu::acquire(static_cast< cppu::OWeakObject * >(new configmgr::read_only_access::Service(context)));
 118 }
 119
 120 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */