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