LCOV - code coverage report
Current view: top level - include/ucbhelper - providerhelper.hxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 1 1 100.0 %
Date: 2014-11-03 Functions: 1 1 100.0 %
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       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             : #ifndef INCLUDED_UCBHELPER_PROVIDERHELPER_HXX
      21             : #define INCLUDED_UCBHELPER_PROVIDERHELPER_HXX
      22             : 
      23             : #include <list>
      24             : #include <com/sun/star/ucb/XContentProvider.hpp>
      25             : #include <com/sun/star/lang/XServiceInfo.hpp>
      26             : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
      27             : #include <com/sun/star/lang/XTypeProvider.hpp>
      28             : #include <cppuhelper/weak.hxx>
      29             : 
      30             : #include <osl/mutex.hxx>
      31             : #include <rtl/ref.hxx>
      32             : #include <ucbhelper/macros.hxx>
      33             : #include <ucbhelper/ucbhelperdllapi.h>
      34             : 
      35             : 
      36             : 
      37             : namespace com { namespace sun { namespace star { namespace ucb {
      38             :     class XPropertySetRegistry;
      39             :     class XPersistentPropertySet;
      40             : } } } }
      41             : 
      42             : namespace ucbhelper_impl { struct ContentProviderImplHelper_Impl; }
      43             : 
      44             : namespace ucbhelper {
      45             : 
      46             : 
      47             : 
      48             : class ContentImplHelper;
      49             : typedef rtl::Reference< ContentImplHelper > ContentImplHelperRef;
      50             : typedef std::list< ContentImplHelperRef > ContentRefList;
      51             : 
      52             : /**
      53             :   * This is an abstract base class for implementations of the service
      54             :   * com.sun.star.ucb.ContentProvider. It provides contents derived from
      55             :   * class ucb::ContentImplHelper.
      56             :   *
      57             :   * Features of the base class implementation:
      58             :   * - standard interfaces ( XInterface, XTypeProvider, XServiceInfo )
      59             :   * - maintains a set of ContentImplHelper objects, which were created by
      60             :   *   the provider implementation. So there will be exactly one object for
      61             :   *   one Content Identifier.
      62             :   * - Provides access to the Additional Core PropertySet of a content.
      63             :   *   ( These set contains the properties added to a content using its
      64             :   *   XPropertyContainer interface )
      65             :   */
      66             : class UCBHELPER_DLLPUBLIC ContentProviderImplHelper : public cppu::OWeakObject,
      67             :                                     public com::sun::star::lang::XTypeProvider,
      68             :                                     public com::sun::star::lang::XServiceInfo,
      69             :                                     public com::sun::star::ucb::XContentProvider
      70             : {
      71             :     friend class ContentImplHelper;
      72             : 
      73             :     ucbhelper_impl::ContentProviderImplHelper_Impl* m_pImpl;
      74             : 
      75             : protected:
      76             :     osl::Mutex m_aMutex;
      77             :     ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >  m_xContext;
      78             : 
      79             : private:
      80             :     UCBHELPER_DLLPRIVATE void removeContent( ContentImplHelper* pContent );
      81             : 
      82             :     UCBHELPER_DLLPRIVATE ::com::sun::star::uno::Reference<
      83             :         ::com::sun::star::ucb::XPropertySetRegistry >
      84             :     getAdditionalPropertySetRegistry();
      85             : 
      86             :     UCBHELPER_DLLPRIVATE void cleanupRegisteredContents();
      87             : 
      88             : protected:
      89             :     /**
      90             :       * This method returns a content with the given id, if it already exists.
      91             :       * Use this method in your "queryContent" implementation to ensure unique
      92             :       * objects.
      93             :       *
      94             :       * @param  Identifier is the content identifier, for that an existing
      95             :       *         content object is requested.
      96             :       * @return the content with the given identifier, if it exists or 0, if it
      97             :       *         does not exist.
      98             :       */
      99             :     rtl::Reference< ContentImplHelper >
     100             :     queryExistingContent( const ::com::sun::star::uno::Reference<
     101             :                    ::com::sun::star::ucb::XContentIdentifier >& Identifier );
     102             : 
     103             :     /**
     104             :       * This method returns a content with the given URL, if it already exists.
     105             :       *
     106             :       * @param  rURL is the URL ( content identifier string ), for that an
     107             :       *         existing content object is requested.
     108             :       * @return the content with the given URL, if it exists or 0, if it
     109             :       *         does not exist.
     110             :       */
     111             :     rtl::Reference< ContentImplHelper >
     112             :     queryExistingContent( const OUString& rURL );
     113             : 
     114             :     /**
     115             :       * This method registers a newly created content instance with the
     116             :       * content provider. It should be called directly after creating a new
     117             :       * content instance. The provider can reuse a registered instance upon
     118             :       * subsedent requests for content instances with an idententifier
     119             :       * of a registered instance.
     120             :       * Note that the provider does not hold a hard reference on the
     121             :       * registered instance. If last external reference is gone, the provider
     122             :       * will remove the instance from its inventory of known instances.
     123             :       * Nothing will happen in case an already registered instance shall
     124             :       * be registered more than once.
     125             :       *
     126             :       * @param  the content instance that is to be registered.
     127             :      */
     128             :     void registerNewContent(
     129             :         const com::sun::star::uno::Reference<
     130             :             ::com::sun::star::ucb::XContent > & xContent );
     131             : 
     132             : public:
     133             : 
     134             : 
     135             :     // Contsruction/Destruction
     136             : 
     137             : 
     138             :     ContentProviderImplHelper(
     139             :                 const ::com::sun::star::uno::Reference<
     140             :                     ::com::sun::star::uno::XComponentContext >& rxContext );
     141             :     virtual ~ContentProviderImplHelper();
     142             : 
     143             : 
     144             :     // XInterface
     145             :     virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType )
     146             :         throw( css::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     147             :     virtual void SAL_CALL acquire()
     148             :         throw() SAL_OVERRIDE;
     149             :     virtual void SAL_CALL release()
     150             :         throw() SAL_OVERRIDE;
     151             : 
     152             :     // XTypeProvider
     153             : 
     154             : 
     155             :     virtual com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL
     156             :     getImplementationId()
     157             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     158             :     virtual com::sun::star::uno::Sequence< com::sun::star::uno::Type > SAL_CALL
     159             :     getTypes()
     160             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     161             : 
     162             :     // XServiceInfo
     163             : 
     164             : 
     165             :     virtual OUString SAL_CALL
     166             :     getImplementationName()
     167             :         throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE = 0;
     168             :     virtual sal_Bool SAL_CALL
     169             :     supportsService( const OUString& ServiceName )
     170             :         throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     171             :     virtual ::com::sun::star::uno::Sequence< OUString > SAL_CALL
     172             :     getSupportedServiceNames()
     173             :         throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE = 0;
     174             : 
     175             : 
     176             :     // XContentProvider
     177             : 
     178             : 
     179             :     /**
     180             :       * This method returns a content with the requested id.
     181             :       *
     182             :       * The implementation should:
     183             :       *
     184             :       * - Check, whether the Identifier is valid ( URL syntax ).
     185             :       * - Use queryExistingContent(...) to determine, whether there exists
     186             :       *   already a content with the given id.
     187             :       * - Return the possibly existing content.Create and return a new
     188             :       *   content, otherwise
     189             :       */
     190             :     virtual ::com::sun::star::uno::Reference<
     191             :                 ::com::sun::star::ucb::XContent > SAL_CALL
     192             :     queryContent( const ::com::sun::star::uno::Reference<
     193             :                     ::com::sun::star::ucb::XContentIdentifier >& Identifier )
     194             :         throw( ::com::sun::star::ucb::IllegalIdentifierException,
     195             :                ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE = 0;
     196             :     virtual sal_Int32 SAL_CALL
     197             :     compareContentIds( const ::com::sun::star::uno::Reference<
     198             :                             ::com::sun::star::ucb::XContentIdentifier >& Id1,
     199             :                        const ::com::sun::star::uno::Reference<
     200             :                                ::com::sun::star::ucb::XContentIdentifier >& Id2 )
     201             :         throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     202             : 
     203             : 
     204             :     // Non-interface methods.
     205             : 
     206             : 
     207             :     /**
     208             :       * This method returns a mutex, which protects the content list of the
     209             :       * provider. So you can prevent modifications of that list easily.
     210             :       *
     211             :       * @return the mutex.
     212             :       */
     213        2812 :     osl::Mutex& getContentListMutex() { return m_aMutex; }
     214             : 
     215             :     /**
     216             :       * This method fills a list with all contents existing at calling time.
     217             :       * Note: You may prevent modifications of the content list at any time
     218             :       * by acquiring the content list mutex of the provider.
     219             :       *
     220             :       * @param  rContents is the list to fill with the children.
     221             :       */
     222             :     void queryExistingContents( ContentRefList& rContents );
     223             : 
     224             :     /**
     225             :       * This method returns the propertyset containing the Additional Core
     226             :       * Properties of a content.
     227             :       *
     228             :       * @param  rKey is the key for the propertyset.
     229             :       * @param  bCreate is a flag indicating whether the propertyset shall
     230             :       *         be created in case it does not exist.
     231             :       * @return the propertyset containing the Additional Core Properties.
     232             :       */
     233             :     ::com::sun::star::uno::Reference<
     234             :         com::sun::star::ucb::XPersistentPropertySet >
     235             :     getAdditionalPropertySet( const OUString& rKey, bool bCreate );
     236             : 
     237             :     /**
     238             :       * This method renames the propertyset containing the Additional Core
     239             :       * Properties of a content.
     240             :       *
     241             :       * @param  rOldKey is the old key of the propertyset.
     242             :       * @param  rNewKey is the new key for the propertyset.
     243             :       * @param  bRecursive is a flag indicating whether propertysets for
     244             :       *         children described by rOldKey shall be renamed, too.
     245             :       * @return True, if the operation succeeded - False, otherwise.
     246             :       */
     247             :     bool renameAdditionalPropertySet( const OUString& rOldKey,
     248             :                                           const OUString& rNewKey,
     249             :                                           bool bRecursive );
     250             : 
     251             :     /**
     252             :       * This method copies the propertyset containing the Additional Core
     253             :       * Properties of a content.
     254             :       *
     255             :       * @param  rSourceKey is the key of the source propertyset.
     256             :       * @param  rTargetKey is the key of the target propertyset.
     257             :       * @param  bRecursive is a flag indicating whether propertysets for
     258             :       *         children described by rSourceKey shall be copied, too.
     259             :       * @return True, if the operation succeeded - False, otherwise.
     260             :       */
     261             :     bool copyAdditionalPropertySet( const OUString& rSourceKey,
     262             :                                         const OUString& rTargetKey,
     263             :                                         bool bRecursive );
     264             : 
     265             :     /**
     266             :       * This method removes the propertyset containing the Additional Core
     267             :       * Properties of a content.
     268             :       *
     269             :       * @param  rKey is the key of the propertyset.
     270             :       * @param  bRecursive is a flag indicating whether propertysets for
     271             :       *         children described by rOldKey shall be removed, too.
     272             :       * @return True, if the operation succeeded - False, otherwise.
     273             :       */
     274             :     bool removeAdditionalPropertySet( const OUString& rKey,
     275             :                                           bool bRecursive );
     276             : };
     277             : 
     278             : } // namespace ucbhelper
     279             : 
     280             : #endif /* ! INCLUDED_UCBHELPER_PROVIDERHELPER_HXX */
     281             : 
     282             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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