|
1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // |
|
15 |
|
16 /** |
|
17 @file |
|
18 @internalTechnology |
|
19 */ |
|
20 |
|
21 #ifndef RESPONSESIZEVISITOR_H |
|
22 #define RESPONSESIZEVISITOR_H |
|
23 |
|
24 #include <e32base.h> |
|
25 #include <btsdp.h> |
|
26 #include "SDPDatabase.h" |
|
27 #include "ServiceSearchVisitor.h" |
|
28 #include "ExtractorVisitor.h" |
|
29 #include "MAttributeVisitor.h" |
|
30 #include <e32base_private.h> |
|
31 |
|
32 |
|
33 class CSdpDatabase; |
|
34 class CSdpServRecord; |
|
35 class CSdpAttr; |
|
36 |
|
37 /** |
|
38 CAttrSizeItem |
|
39 contains the attribute ID, the size of the attribute and a pointer to the attribute |
|
40 This object is attached to a list (CArrayPtrFlat) contained in CHandleItem object |
|
41 **/ |
|
42 NONSHARABLE_CLASS(CAttrSizeItem) // not a cbase because no benefit, just overhead |
|
43 { |
|
44 friend class CSizeAccumulator; |
|
45 public: |
|
46 CAttrSizeItem(){}; |
|
47 ~CAttrSizeItem(){iAttribute=0;}; |
|
48 CAttrSizeItem(const TSdpAttributeID aAttributeID, TUint aSize, CSdpAttr* aAttribute): |
|
49 iAttributeID(aAttributeID), |
|
50 iSize(aSize), |
|
51 iAttribute(aAttribute) {}; |
|
52 inline TSdpAttributeID AttID(); |
|
53 inline TUint Size(); |
|
54 inline CSdpAttr* Attr(); |
|
55 |
|
56 private: |
|
57 TSdpAttributeID iAttributeID; |
|
58 TUint iSize; |
|
59 CSdpAttr* iAttribute; |
|
60 }; |
|
61 inline TSdpAttributeID CAttrSizeItem::AttID() {return iAttributeID;}; |
|
62 inline TUint CAttrSizeItem::Size() {return iSize;}; |
|
63 inline CSdpAttr* CAttrSizeItem::Attr() {return iAttribute;}; |
|
64 |
|
65 // const TUint KSDPAttListGran = 8*(sizeof(CAttrSizeItem*)); granularity for a Seg |
|
66 const TUint KSDPAttListGran = 8; // granularity for a flat |
|
67 |
|
68 /** |
|
69 CHandleItem |
|
70 keeps the Service record handle and optionally manages an array of attributes |
|
71 for that record which match the Attribute ID match list |
|
72 **/ |
|
73 NONSHARABLE_CLASS(CHandleItem) : public CBase |
|
74 { |
|
75 friend class CSizeAccumulator; |
|
76 public: |
|
77 CHandleItem(){}; |
|
78 ~CHandleItem(); |
|
79 IMPORT_C static CHandleItem* NewL(); |
|
80 IMPORT_C static CHandleItem* NewLC(); |
|
81 IMPORT_C static CHandleItem* CHandleItemL(TSdpServRecordHandle aHandleID, CSdpServRecord* aRecord); |
|
82 |
|
83 // PutRecord(TSdpServRecordHandle aHandleID, const CSdpServRecord* aRecord); // update the NULL data |
|
84 |
|
85 void AddAttrItemL(CAttrSizeItem* aItem); |
|
86 void AddAttrItemL(const TSdpAttributeID aAttributeID, TUint aSize, CSdpAttr* aAttribute); |
|
87 inline TInt Count(); |
|
88 private: |
|
89 void ConstructL(); |
|
90 TSdpServRecordHandle iHandleID; |
|
91 CSdpServRecord* iRecord; |
|
92 TUint iRecordSize; |
|
93 CArrayPtrFlat<CAttrSizeItem>* iAttrSizeList; // stores the attributes found |
|
94 }; |
|
95 inline TInt CHandleItem::Count() {return iAttrSizeList->Count();}; |
|
96 |
|
97 // const TUint KSDPHandListGran = 8*(sizeof(CHandleItem*)); granularity for a Seg |
|
98 const TUint KSDPHandListGran = 8; // granularity for a flat |
|
99 |
|
100 NONSHARABLE_CLASS(CSizeAccumulator) : public CBase |
|
101 { |
|
102 public: |
|
103 // these methods are used in building this object by searching the database |
|
104 ~CSizeAccumulator(); |
|
105 IMPORT_C static CSizeAccumulator* NewL(); |
|
106 IMPORT_C static CSizeAccumulator* NewLC(); |
|
107 void AddHandleL(CHandleItem* aHandleItem); // create a new array element |
|
108 // void AddHandle(TSdpServRecordHandle aHandleID, CSdpServRecord* aRecord); // create a new array element |
|
109 // void AddAttrib(TSdpAttributeID aAttributeID, CSdpAttr* aAttribute, TUint aSize); |
|
110 |
|
111 // these methods are used in building the server response once the search has been carried out |
|
112 IMPORT_C TUint SizeLeft(); // can be called before or after setting the start point |
|
113 IMPORT_C TUint16 CrcAttribs(); // CRC of the attribute values, not headers |
|
114 IMPORT_C TBool StartAt(TUint aOffset, TUint& aPartSent, TInt& aRec, TInt& aAtt); // calculates and sets the next record and attribute |
|
115 IMPORT_C TInt HandleCount(); // returns the count of handles in the array |
|
116 IMPORT_C TSdpServRecordHandle HandleAt(TInt aOffset); // returns the Record handle at offset i |
|
117 IMPORT_C TUint HandleSize(TInt aOffset); // returns the size of the record at offset aOffset |
|
118 IMPORT_C TInt AttrCount(TInt aOffset); // returns the count of attributes for record at offset i |
|
119 IMPORT_C CAttrSizeItem* AttributeOf(TInt aHandleOffset, TInt aAttOffset); // returns the attribute size object (CAttrSizeItem) at i,j |
|
120 |
|
121 private: |
|
122 CSizeAccumulator():iFirstRec(0),iFirstAtt(0){}; |
|
123 void ConstructL(); |
|
124 |
|
125 CArrayPtrFlat<CHandleItem>* iHandleList; // stores the records found |
|
126 TInt iFirstRec; // offsets for continuation |
|
127 TInt iFirstAtt; |
|
128 }; |
|
129 |
|
130 /** |
|
131 Class response size visitor. |
|
132 Supply a CSizeAccumulator object which will have all the necessary sizes on return. |
|
133 a) SizeRespSSL is called by service search to get just header list |
|
134 b) SizeRespARL is called by Attribute request to get the list of sizes of matching attributes for the one record |
|
135 c) SizeRespSAL is called by Service Attribute Search to get the two lists. |
|
136 a, c carry out the same UUID search over the attribute tree as ServiceSearchVisitor::SearchDbL |
|
137 b carries out the same selection of attributes as CAttrExtractVisitor::EncodeAttributesL |
|
138 |
|
139 **/ |
|
140 class CSizeEncVisitorAdaptor; |
|
141 |
|
142 NONSHARABLE_CLASS(CResponseSizeVisitor) : public CBase, public MAttributeVisitor |
|
143 { |
|
144 public: |
|
145 ~CResponseSizeVisitor(); |
|
146 |
|
147 IMPORT_C static void SizeRespSSL(CSdpDatabase& aDb, const CSdpSearchPattern& aPattern, CSizeAccumulator& aCollector); |
|
148 IMPORT_C static void SizeRespARL(CSdpServRecord& aRec, const CSdpAttrIdMatchList& aList, CSizeAccumulator& aCollector); |
|
149 IMPORT_C static void SizeRespSAL(CSdpDatabase& aDb, const CSdpSearchPattern& aPattern, const CSdpAttrIdMatchList& aList, CSizeAccumulator& aCollector); |
|
150 |
|
151 void FoundUUIDL(const TUUID& aUUID); // needs to be public because of the encoder visitor adaptor |
|
152 |
|
153 private: |
|
154 static CResponseSizeVisitor* NewL(); |
|
155 static CResponseSizeVisitor* NewLC(); |
|
156 CResponseSizeVisitor(); |
|
157 void ConstructL(); |
|
158 |
|
159 void SearchRecordL(CSdpServRecord& aRec); |
|
160 |
|
161 // MAttributeVisitor interface |
|
162 void VisitAttributeL(CSdpAttr &aAttribute); |
|
163 void VisitAttributeValueL(CSdpAttrValue &aValue, TSdpElementType aType); |
|
164 void StartListL(CSdpAttrValueList &aList); |
|
165 void EndListL(); |
|
166 |
|
167 private: |
|
168 CSizeEncVisitorAdaptor* iAdapter; |
|
169 CElementParser* iParser; // used by the encoded UUID parser |
|
170 const CSdpSearchPattern* iSearchPattern; // a local pointer to the UUID search list |
|
171 CSizeAccumulator* iCollector; // a local pointer to the size collector object supplied |
|
172 const CSdpAttrIdMatchList* iAtMatList; // a local pointer to the attribute match list or NULL |
|
173 CHandleItem* iCurrentRec; // we build the handle and attribute list and perhaps throw it away |
|
174 CBitMapAllocator* iFoundIndex; // a simpler match |
|
175 TInt iSearchSize; // how many items in search pattern |
|
176 TBool iUseThis; // do we use this record ? |
|
177 }; |
|
178 |
|
179 |
|
180 #endif |