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1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 /** |
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17 @internalTechnology |
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18 @released |
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19 */ |
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20 |
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21 #include "EncoderVisitor.h" |
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22 #include <btsdp.h> |
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23 #include "DataEncoder.h" |
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24 #include "SDPDatabase.h" |
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25 #include "sdputil.h" |
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26 |
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27 /** Creates a new CAttrEncoderVisitor and leaves it on the cleanup stack. |
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28 |
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29 @param aEncoder a TElementEncoder to be used by this CAttrEncoderVisitor. |
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30 @return A new CAttrEncoderVisitor. |
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31 */ |
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32 EXPORT_C CAttrEncoderVisitor *CAttrEncoderVisitor::NewLC(TElementEncoder aEncoder) |
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33 { |
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34 CAttrEncoderVisitor *self = new(ELeave) CAttrEncoderVisitor(aEncoder); |
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35 CleanupStack::PushL(self); |
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36 self->ConstructL(); |
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37 return self; |
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38 } |
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39 |
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40 /** Creates a new CAttrEncoderVisitor. |
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41 |
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42 @param aEncoder a TElementEncoder to be used by this CAttrEncoderVisitor. |
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43 @return A new CAttrEncoderVisitor. |
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44 */ |
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45 EXPORT_C CAttrEncoderVisitor *CAttrEncoderVisitor::NewL(TElementEncoder aEncoder) |
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46 { |
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47 CAttrEncoderVisitor *self = CAttrEncoderVisitor::NewLC(aEncoder); |
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48 CleanupStack::Pop(); |
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49 return self; |
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50 } |
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51 |
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52 CAttrEncoderVisitor::CAttrEncoderVisitor(TElementEncoder aEncoder) |
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53 : iEncoder(aEncoder) |
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54 { |
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55 } |
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56 |
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57 void CAttrEncoderVisitor::ConstructL() |
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58 { |
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59 } |
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60 |
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61 CAttrEncoderVisitor::~CAttrEncoderVisitor() |
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62 { |
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63 } |
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64 |
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65 /** |
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66 Encode attribute in aSrcAttr into buffer supplied in the encoder. |
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67 |
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68 @param aEncoder A TElementEncoder with a buffer large enough to contain the |
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69 encoded value. |
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70 @leave ESdpUnexpectedAttributeValueType If the attribute is of an unknown type. |
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71 @leave Positive value equal to the number of bytes of the encoded value which |
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72 did not fit in the write buffer of the TElementEncoder which is provided |
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73 as aEncoder. To calculate the size of write buffer needed use the |
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74 TElementEncoder::EncodedSize function. |
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75 @see TElementEncoder::EncodedSize |
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76 */ |
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77 EXPORT_C void CAttrEncoderVisitor::EncodeAttributeL(TElementEncoder aEncoder, CSdpAttrValue &aSrcAttr) |
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78 { |
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79 CAttrEncoderVisitor *self = CAttrEncoderVisitor::NewLC(aEncoder); |
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80 aSrcAttr.AcceptVisitorL(*self); |
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81 CleanupStack::PopAndDestroy(); |
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82 } |
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83 |
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84 /** |
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85 Encode attribute in aSrcAttr into buffer supplied at construction. |
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86 |
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87 @leave ESdpUnexpectedAttributeValueType If the attribute is of an unknown type. |
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88 @leave Positive value equal to the number of bytes of the encoded value which |
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89 did not fit in the write buffer of the TElementEncoder. This was provided |
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90 at construction. To calculate the size of write buffer needed use the |
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91 TElementEncoder::EncodedSize function. |
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92 @see TElementEncoder::EncodedSize |
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93 */ |
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94 EXPORT_C void CAttrEncoderVisitor::EncodeAttributeL(CSdpAttrValue &aSrcAttr) |
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95 { |
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96 aSrcAttr.AcceptVisitorL(*this); |
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97 } |
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98 |
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99 |
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100 void CAttrEncoderVisitor::VisitAttributeL(CSdpAttr &aAttribute) |
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101 { |
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102 iEncoder.WriteUint(aAttribute.AttributeID(), sizeof(TSdpAttributeID)); |
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103 } |
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104 |
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105 void CAttrEncoderVisitor::VisitAttributeValueL(CSdpAttrValue &aValue, TSdpElementType aType) |
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106 { |
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107 TUint rem=0; |
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108 switch(aType) |
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109 { |
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110 case ETypeNil: |
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111 rem = iEncoder.WriteNil(); |
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112 break; |
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113 case ETypeUint: |
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114 case ETypeInt: |
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115 case ETypeUUID: |
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116 case ETypeString: |
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117 case ETypeURL: |
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118 rem = iEncoder.WriteElement(aType, aValue.Des()); |
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119 break; |
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120 case ETypeBoolean: |
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121 rem = iEncoder.WriteBoolean(aValue.Bool()); |
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122 break; |
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123 case ETypeDES: |
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124 rem = iEncoder.WriteDES(aValue.DataSize()); |
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125 break; |
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126 case ETypeDEA: |
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127 rem = iEncoder.WriteDEA(aValue.DataSize()); |
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128 break; |
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129 case ETypeEncoded: |
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130 rem= iEncoder.WriteDesc(aValue.Des()); |
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131 break; |
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132 default: |
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133 User::Leave(ESdpUnexpectedAttributeValueType); |
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134 } |
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135 |
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136 |
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137 if (rem) |
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138 User::Leave(rem); |
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139 } |
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140 |
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141 void CAttrEncoderVisitor::StartListL(CSdpAttrValueList &/*aList*/) |
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142 { |
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143 } |
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144 |
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145 void CAttrEncoderVisitor::EndListL() |
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146 { |
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147 } |
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148 |
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149 |
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150 |
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151 |