qtmobility/plugins/contacts/maemo5/qcontactidshash.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Mobility Components.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef QCONTACTIDSHASH_H
       
    43 #define QCONTACTIDSHASH_H
       
    44 
       
    45 #include <QByteArray>
       
    46 #include "qcontactmaemo5debug_p.h"
       
    47 #include "qtcontacts.h"
       
    48 
       
    49 QTM_USE_NAMESPACE
       
    50 
       
    51 /* QContactIDsHash stores abookContact IDs (strings)*/
       
    52 class QContactIDsHash{
       
    53 public:
       
    54   QContactIDsHash(){};
       
    55   
       
    56   /* Append */
       
    57   QContactIDsHash& operator<< (const QByteArray& eContactId){
       
    58     const QContactLocalId key = qChecksum(eContactId, eContactId.size());
       
    59     if (m_localIds.contains(key))
       
    60       return (*this);
       
    61     m_localIds[key] = eContactId;
       
    62     QCM5_DEBUG << "Add key:" << key << "eContactId:" << eContactId;
       
    63     return (*this);
       
    64   };
       
    65   
       
    66   const QContactLocalId append(const QByteArray& eContactId){
       
    67     const QContactLocalId key = qChecksum(eContactId, eContactId.size());
       
    68     if (m_localIds.contains(key))
       
    69       return key;
       
    70     m_localIds[key] = eContactId;
       
    71     QCM5_DEBUG << "Add key:" << key << "eContactId:" << eContactId;
       
    72     return key;
       
    73   };
       
    74   
       
    75   /* Find */
       
    76   const char* operator[] (const QContactLocalId localId) { return m_localIds.value(localId).constData(); };
       
    77   const char* find(const QContactLocalId localId) { return m_localIds.value(localId).constData(); };
       
    78   const QContactLocalId operator[] (const QByteArray& eContactId) { return m_localIds.key(eContactId, 0); };
       
    79   const QContactLocalId find(const QByteArray& eContactId) { return m_localIds.key(eContactId, 0); };
       
    80   
       
    81   /* Remove */
       
    82   bool remove(const QContactLocalId localId){ bool removed = (m_localIds.remove(localId) == 1) ? true : false;
       
    83                                               QCM5_DEBUG << "Remove QContactLocalId:" << localId << ((removed) ? "OK" : "NO");
       
    84                                               return removed;
       
    85                                             };
       
    86   bool remove(const QByteArray& eContactId){ 
       
    87     const QContactLocalId hashKey = m_localIds.key(eContactId, 0);
       
    88     bool removed = remove(hashKey);
       
    89     QCM5_DEBUG << "Remove QContactLocalId:" << hashKey << ((removed) ? "OK" : "NO");
       
    90     return removed;
       
    91   };
       
    92   
       
    93   /* Take */
       
    94   const QContactLocalId take(const QByteArray& eContactId){
       
    95     const QContactLocalId hashKey = m_localIds.key(eContactId, 0);
       
    96     remove(hashKey);
       
    97     return hashKey;
       
    98   };
       
    99   
       
   100 private:
       
   101   QHash<QContactLocalId, QByteArray> m_localIds; //[int/QContactLocalId Maemo5LocalId, QByteArray eContactID]
       
   102 };
       
   103 
       
   104 #endif