LCOV - code coverage report
Current view: top level - include/comphelper - numberedcollection.hxx (source / functions) Hit Total Coverage
Test: commit c8344322a7af75b84dd3ca8f78b05543a976dfd5 Lines: 1 1 100.0 %
Date: 2015-06-13 12:38:46 Functions: 3 3 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       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_COMPHELPER_NUMBEREDCOLLECTION_HXX
      21             : #define INCLUDED_COMPHELPER_NUMBEREDCOLLECTION_HXX
      22             : 
      23             : #include <comphelper/comphelperdllapi.h>
      24             : 
      25             : #include <com/sun/star/uno/Reference.hxx>
      26             : #include <com/sun/star/lang/IllegalArgumentException.hpp>
      27             : #include <com/sun/star/uno/XInterface.hpp>
      28             : #include <com/sun/star/frame/XUntitledNumbers.hpp>
      29             : 
      30             : #include <cppuhelper/basemutex.hxx>
      31             : #include <cppuhelper/weakref.hxx>
      32             : #include <cppuhelper/implbase1.hxx>
      33             : #include <boost/functional/hash.hpp>
      34             : #include <unordered_map>
      35             : #include <vector>
      36             : 
      37             : 
      38             : namespace comphelper{
      39             : 
      40             : /** @short  defines a collection of UNO components, where every component will get its own unique number.
      41             : 
      42             :     @descr  Such number will be unique at runtime only ... but it supports fragmentation.
      43             :             Note: This collection uses weak references only to know her components.
      44             :             So lifetime of thise components must be controlled outside.
      45             : 
      46             :     @threadsafe
      47             :  */
      48             : class COMPHELPER_DLLPUBLIC NumberedCollection : private ::cppu::BaseMutex
      49             :                                               , public  ::cppu::WeakImplHelper1< css::frame::XUntitledNumbers >
      50             : {
      51             : 
      52             :     // types, const
      53             :     private:
      54             : 
      55       21873 :         struct TNumberedItem
      56             :         {
      57             :             css::uno::WeakReference< css::uno::XInterface > xItem;
      58             :             ::sal_Int32 nNumber;
      59             :         };
      60             : 
      61             :         typedef std::unordered_map<
      62             :                     long                    ,
      63             :                     TNumberedItem           ,
      64             :                     ::boost::hash< long >     ,
      65             :                     ::std::equal_to< long > > TNumberedItemHash;
      66             : 
      67             :         typedef ::std::vector< long > TDeadItemList;
      68             : 
      69             : 
      70             :     // interface
      71             :     public:
      72             : 
      73             : 
      74             :         /** @short  lightweight constructor.
      75             :          */
      76             :         NumberedCollection();
      77             : 
      78             : 
      79             :         /** @short  free all internally used resources.
      80             :          */
      81             :         virtual ~NumberedCollection();
      82             : 
      83             : 
      84             :         /** set an outside component which uses this container and must be set
      85             :             as source of all broadcasted messages, exceptions.
      86             : 
      87             :             It's holded weak only so we do not need any complex dispose sessions.
      88             : 
      89             :             Note: Passing NULL as parameter will be allowed. It will reset the internal
      90             :             member reference only.
      91             : 
      92             :             @param  xOwner
      93             :                     the new owner of this collection.
      94             :          */
      95             :         void setOwner (const css::uno::Reference< css::uno::XInterface >& xOwner);
      96             : 
      97             : 
      98             :         /** set the localized prefix to be used for untitled components.
      99             : 
     100             :             Localization has to be done outside. This container will return
     101             :             those value then. There are no further checks. Its up to you to define
     102             :             a suitable string here :-)
     103             : 
     104             :             @param  sPrefix
     105             :                     the new prefix for untitled components.
     106             :          */
     107             :         void setUntitledPrefix(const OUString& sPrefix);
     108             : 
     109             : 
     110             :         /** @see css.frame.XUntitledNumbers */
     111             :         virtual ::sal_Int32 SAL_CALL leaseNumber(const css::uno::Reference< css::uno::XInterface >& xComponent)
     112             :             throw (css::lang::IllegalArgumentException,
     113             :                    css::uno::RuntimeException, std::exception         ) SAL_OVERRIDE;
     114             : 
     115             : 
     116             :         /** @see css.frame.XUntitledNumbers */
     117             :         virtual void SAL_CALL releaseNumber(::sal_Int32 nNumber)
     118             :             throw (css::lang::IllegalArgumentException,
     119             :                    css::uno::RuntimeException, std::exception         ) SAL_OVERRIDE;
     120             : 
     121             : 
     122             :         /** @see css.frame.XUntitledNumbers */
     123             :         virtual void SAL_CALL releaseNumberForComponent(const css::uno::Reference< css::uno::XInterface >& xComponent)
     124             :             throw (css::lang::IllegalArgumentException,
     125             :                    css::uno::RuntimeException, std::exception         ) SAL_OVERRIDE;
     126             : 
     127             : 
     128             :         /** @see css.frame.XUntitledNumbers */
     129             :         virtual OUString SAL_CALL getUntitledPrefix()
     130             :             throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
     131             : 
     132             : 
     133             :     // internal
     134             :     private:
     135             : 
     136             : 
     137             :         /** @short  trys to find an unique number not already used within this collection.
     138             : 
     139             :             @descr  It reuses the smalles number which isn't used by any component
     140             :                     of this collection. (fragmentation!) If collection is full (means there
     141             :                     is no free number) the special value INVALID_NUMBER will be returned.
     142             : 
     143             :             @note   Those method can't be called within a multithreaded environment ..
     144             :                     Because such number wont be "reserved" for the calli of these method
     145             :                     it can happen that two calls returns the same number (reasoned by the fact that first calli
     146             :                     doesn't used the returned number already.
     147             : 
     148             :                     So the outside code has to make sure that retrieving and using of those number
     149             :                     will be an atomic operation.
     150             : 
     151             :             @return an unique number or special value INVALID_NUMBER if collection is full.
     152             :          */
     153             :         ::sal_Int32 impl_searchFreeNumber ();
     154             : 
     155             :         static void impl_cleanUpDeadItems (      TNumberedItemHash& lItems    ,
     156             :                                            const TDeadItemList&     lDeadItems);
     157             : 
     158             : 
     159             :     // member
     160             :     private:
     161             : 
     162             :         /// localized string to be used for untitled components
     163             :         OUString m_sUntitledPrefix;
     164             : 
     165             :         /// cache of all "leased numbers" and its bound components
     166             :         TNumberedItemHash m_lComponents;
     167             : 
     168             :         /// used as source of broadcasted messages or exceptions (can be null !)
     169             :         css::uno::WeakReference< css::uno::XInterface > m_xOwner;
     170             : };
     171             : 
     172             : } // namespace comphelper
     173             : 
     174             : #endif // INCLUDED_COMPHELPER_NUMBEREDCOLLECTION_HXX
     175             : 
     176             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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