plugins/common/varianttype.h

   1 /*
   2 Copyright (C) 2012 Intel Corporation
   3
   4 This library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Lesser General Public
   6 License as published by the Free Software Foundation; either
   7 version 2.1 of the License, or (at your option) any later version.
   8
   9 This library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Lesser General Public License for more details.
  13
  14 You should have received a copy of the GNU Lesser General Public
  15 License along with this library; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  17 */
  18
  19 #ifndef VARIANTTYPE_H_
  20 #define VARIANTTYPE_H_
  21
  22 #include <string>
  23 #include <functional>
  24 #include <boost/any.hpp>
  25 #include <glib.h>
  26
  27 #include "debugout.h"
  28 #include "abstractpropertytype.h"
  29 #include "abstractroutingengine.h"
  30 #include "vehicleproperty.h"
  31
  32 class AbstractDBusInterface;
  33
  34 class VariantType
  35 {
  36
  37 public:
  38
  39         enum Access {
  40                 Read,
  41                 Write,
  42                 ReadWrite
  43         };
  44
  45         VariantType(AbstractRoutingEngine* re, VehicleProperty::Property ambPropertyName, std::string propertyName,  Access access);
  46         virtual ~VariantType();
  47
  48         bool operator == (VariantType & other)
  49         {
  50                 return (other.name() == name()
  51                                 && other.ambPropertyName() == ambPropertyName()
  52                                 && other.sourceFilter() == sourceFilter()
  53                                 && other.zoneFilter() == zoneFilter());
  54         }
  55
  56         virtual const string signature()
  57         {
  58                 GVariant* var = toVariant();
  59                 if(!var) return "";
  60
  61                 const string s = g_variant_get_type_string(var);
  62                 g_variant_unref(var);
  63                 return s;
  64         }
  65
  66         virtual string name()
  67         {
  68                 return mPropertyName;
  69         }
  70
  71         virtual VehicleProperty::Property ambPropertyName()
  72         {
  73                 return mAmbPropertyName;
  74         }
  75
  76         virtual Access access()
  77         {
  78                 return mAccess;
  79         }
  80
  81         void setSourceFilter(std::string filter) { mSourceFilter = filter; }
  82         void setZoneFilter(Zone::Type zone)
  83         {
  84                 if(mValue)
  85                         mValue->zone = zone;
  86
  87                 mZoneFilter = zone;
  88         }
  89
  90         std::string sourceFilter() { return mSourceFilter; }
  91         Zone::Type zoneFilter() { return mZoneFilter; }
  92
  93         virtual GVariant* toVariant();
  94         virtual void fromVariant(GVariant *value, std::function<void (bool, AsyncPropertyReply::Error)> callback);
  95
  96         double timestamp()
  97         {
  98                 if(mValue)
  99                         return mValue->timestamp;
 100                 return 0;
 101         }
 102
 103         int sequence()
 104         {
 105                 if(mValue)
 106                         return mValue->sequence;
 107                 return 0;
 108         }
 109
 110         virtual void setValue(AbstractPropertyType* val)
 111         {
 112                 if(!val)
 113                         return;
 114
 115                 if(!mValue)
 116                 {
 117                         mValue = val->copy();
 118                 }
 119                 else
 120                 {
 121                         mValue->quickCopy(val);
 122                 }
 123
 124                 if(mUpdateFrequency == 0)
 125                 {
 126                         PropertyInfo info = routingEngine->getPropertyInfo(mValue->name, mValue->sourceUuid);
 127
 128                         if(info.isValid())
 129                                 mUpdateFrequency = info.updateFrequency();
 130                         else
 131                                 mUpdateFrequency = -1;
 132                 }
 133         }
 134
 135         virtual void updateValue(AbstractPropertyType* val)
 136         {
 137                 setValue(val);
 138         }
 139
 140         int updateFrequency()
 141         {
 142                 return mUpdateFrequency;
 143         }
 144
 145         AbstractPropertyType* value()
 146         {
 147                 return mValue;
 148         }
 149
 150         void initialize();
 151
 152 protected:
 153
 154         std::string mSourceFilter;
 155         Zone::Type mZoneFilter;
 156         int mUpdateFrequency;
 157         AbstractRoutingEngine* routingEngine;
 158         string mPropertyName;
 159         VehicleProperty::Property mAmbPropertyName;
 160         Access mAccess;
 161         AbstractPropertyType* mValue;
 162         AbstractDBusInterface* mInterface;
 163
 164 private:
 165         bool mInitialized;
 166 };
 167
 168 #endif // ABSTRACTPROPERTY_H