1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * This file contains the header file of the Plugin, FrontendPlugin, |
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16 * CommChannelPlugin and CommChannelPluginObserver classes and implementation |
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17 * of DummyCommObserver. |
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18 */ |
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19 |
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20 // INCLUDES |
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21 #include "plugin.h" |
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22 #include "util.h" |
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23 #include "serialcommplugin.h" |
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24 #include "IPCommPlugin.h" |
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25 |
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26 extern DWORD g_ErrorCode; |
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27 |
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28 //********************************************************************************** |
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29 // Class Plugin |
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30 // |
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31 //********************************************************************************** |
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32 |
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33 Plugin::Plugin() |
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34 { |
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35 Init(); |
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36 } |
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37 |
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38 DWORD Plugin::Init() |
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39 { |
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40 m_Name = "NULL Plugin"; |
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41 return NO_ERRORS; |
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42 } |
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43 |
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44 const string& Plugin::GetName(string *name) |
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45 { |
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46 if (name != NULL) |
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47 { |
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48 *name = m_Name; |
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49 } |
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50 return m_Name; |
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51 } |
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52 |
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53 //********************************************************************************** |
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54 // Class CommChannelPlugin |
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55 // |
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56 // This class is the parent class of all communication channel plugins used |
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57 // in DataGateway. |
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58 //********************************************************************************** |
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59 |
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60 CommChannelPlugin* CommChannelPlugin::m_Self = NULL; |
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61 |
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62 /* |
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63 * This method creates instance of specified plugin |
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64 */ |
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65 CommChannelPlugin* CommChannelPlugin::Instance(const string& pluginname, |
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66 const CommChannelPluginObserver* observer) |
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67 { |
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68 if (m_Self == NULL) |
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69 { |
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70 if (pluginname.compare("SERIAL") == 0 ) |
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71 { |
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72 m_Self = new SerialCommPlugin(observer); |
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73 } |
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74 else if (pluginname.compare("IPCOMM") == 0 ) |
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75 { |
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76 m_Self = new IPCommPlugin(observer); |
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77 } |
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78 else |
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79 { |
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80 string err = "Error when creating communication channel plugin.\n"; |
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81 err += "Unknown plugin '" + pluginname + "'"; |
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82 Util::Error(err); |
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83 m_Self = NULL; |
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84 g_ErrorCode = ERR_DG_UNKNOWN_COMMCHANNEL; |
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85 } |
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86 } |
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87 return m_Self; |
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88 } |
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89 |
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90 /* |
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91 * This method initializes and connects the instance of plugin |
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92 */ |
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93 DWORD CommChannelPlugin::Connect() |
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94 { |
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95 if (m_Self == NULL) return ERR_DG_UNINITIALISED_COMMCHANNEL; |
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96 DWORD res; |
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97 if ((res = m_Self->Init()) != NO_ERRORS) return res; |
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98 return m_Self->Open(); |
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99 } |
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100 |
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101 /* |
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102 * This method closes and deletes the instance of plugin |
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103 */ |
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104 DWORD CommChannelPlugin::Disconnect() |
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105 { |
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106 if (m_Self == NULL) return ERR_DG_UNINITIALISED_COMMCHANNEL; |
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107 Util::Info("[DataGateway] Waiting Communication Channel Plugin to shutdown"); |
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108 m_Self->Close(); |
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109 delete m_Self; |
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110 m_Self = NULL; |
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111 return NO_ERRORS; |
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112 } |
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113 |
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114 CommChannelPlugin::CommChannelPlugin(const CommChannelPluginObserver* observer) |
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115 : Plugin() |
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116 { |
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117 if (observer == NULL) |
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118 { |
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119 m_Observer = new DummyCommObserver; |
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120 } |
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121 else |
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122 { |
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123 m_Observer = observer; |
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124 } |
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125 } |
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126 |
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127 DWORD CommChannelPlugin::Init() |
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128 { |
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129 DWORD res; |
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130 res = Plugin::Init(); |
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131 m_Open = false; |
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132 return res; |
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133 } |
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134 |
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135 // End of the file |
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