#ifndef __TABLE_SERIALIZER_H #define __TABLE_SERIALIZER_H #include "RakMemoryOverride.h" #include "DS_Table.h" #include "Export.h" namespace RakNet { class BitStream; } class RAK_DLL_EXPORT TableSerializer : public RakNet::RakMemoryOverride { public: static void SerializeTable(DataStructures::Table *in, RakNet::BitStream *out); static bool DeserializeTable(unsigned char *serializedTable, unsigned int dataLength, DataStructures::Table *out); static bool DeserializeTable(RakNet::BitStream *in, DataStructures::Table *out); static void SerializeColumns(DataStructures::Table *in, RakNet::BitStream *out); static void SerializeColumns(DataStructures::Table *in, RakNet::BitStream *out, DataStructures::List &skipColumnIndices); static bool DeserializeColumns(RakNet::BitStream *in, DataStructures::Table *out); static void SerializeRow(DataStructures::Table::Row *in, unsigned keyIn, DataStructures::List &columns, RakNet::BitStream *out); static void SerializeRow(DataStructures::Table::Row *in, unsigned keyIn, DataStructures::List &columns, RakNet::BitStream *out, DataStructures::List &skipColumnIndices); static bool DeserializeRow(RakNet::BitStream *in, DataStructures::Table *out); static void SerializeCell(RakNet::BitStream *out, DataStructures::Table::Cell *cell, DataStructures::Table::ColumnType columnType); static bool DeserializeCell(RakNet::BitStream *in, DataStructures::Table::Cell *cell, DataStructures::Table::ColumnType columnType); static void SerializeFilterQuery(RakNet::BitStream *in, DataStructures::Table::FilterQuery *query); // Note that this allocates query->cell->c! static bool DeserializeFilterQuery(RakNet::BitStream *out, DataStructures::Table::FilterQuery *query); static void SerializeFilterQueryList(RakNet::BitStream *in, DataStructures::Table::FilterQuery *query, unsigned int numQueries, unsigned int maxQueries); // Note that this allocates queries, cells, and query->cell->c!. Use DeallocateQueryList to free. static bool DeserializeFilterQueryList(RakNet::BitStream *out, DataStructures::Table::FilterQuery **query, unsigned int *numQueries, unsigned int maxQueries, int allocateExtraQueries=0); static void DeallocateQueryList(DataStructures::Table::FilterQuery *query, unsigned int numQueries); }; #endif // Test code for the table /* #include "LightweightDatabaseServer.h" #include "LightweightDatabaseClient.h" #include "TableSerializer.h" #include "BitStream.h" #include "StringCompressor.h" #include "DS_Table.h" void main(void) { DataStructures::Table table; DataStructures::Table::Row *row; unsigned int dummydata=12345; // Add columns Name (string), IP (binary), score (int), and players (int). table.AddColumn("Name", DataStructures::Table::STRING); table.AddColumn("IP", DataStructures::Table::BINARY); table.AddColumn("Score", DataStructures::Table::NUMERIC); table.AddColumn("Players", DataStructures::Table::NUMERIC); table.AddColumn("Empty Test Column", DataStructures::Table::STRING); assert(table.GetColumnCount()==5); row=table.AddRow(0); assert(row); row->UpdateCell(0,"Kevin Jenkins"); row->UpdateCell(1,sizeof(dummydata), (char*)&dummydata); row->UpdateCell(2,5); row->UpdateCell(3,10); //row->UpdateCell(4,"should be unique"); row=table.AddRow(1); row->UpdateCell(0,"Kevin Jenkins"); row->UpdateCell(1,sizeof(dummydata), (char*)&dummydata); row->UpdateCell(2,5); row->UpdateCell(3,15); row=table.AddRow(2); row->UpdateCell(0,"Kevin Jenkins"); row->UpdateCell(1,sizeof(dummydata), (char*)&dummydata); row->UpdateCell(2,5); row->UpdateCell(3,20); row=table.AddRow(3); assert(row); row->UpdateCell(0,"Kevin Jenkins"); row->UpdateCell(1,sizeof(dummydata), (char*)&dummydata); row->UpdateCell(2,15); row->UpdateCell(3,5); row->UpdateCell(4,"col index 4"); row=table.AddRow(4); assert(row); row->UpdateCell(0,"Kevin Jenkins"); row->UpdateCell(1,sizeof(dummydata), (char*)&dummydata); //row->UpdateCell(2,25); row->UpdateCell(3,30); //row->UpdateCell(4,"should be unique"); row=table.AddRow(5); assert(row); row->UpdateCell(0,"Kevin Jenkins"); row->UpdateCell(1,sizeof(dummydata), (char*)&dummydata); //row->UpdateCell(2,25); row->UpdateCell(3,5); //row->UpdateCell(4,"should be unique"); row=table.AddRow(6); assert(row); row->UpdateCell(0,"Kevin Jenkins"); row->UpdateCell(1,sizeof(dummydata), (char*)&dummydata); row->UpdateCell(2,35); //row->UpdateCell(3,40); //row->UpdateCell(4,"should be unique"); row=table.AddRow(7); assert(row); row->UpdateCell(0,"Bob Jenkins"); row=table.AddRow(8); assert(row); row->UpdateCell(0,"Zack Jenkins"); // Test multi-column sorting DataStructures::Table::Row *rows[30]; DataStructures::Table::SortQuery queries[4]; queries[0].columnIndex=0; queries[0].operation=DataStructures::Table::QS_INCREASING_ORDER; queries[1].columnIndex=1; queries[1].operation=DataStructures::Table::QS_INCREASING_ORDER; queries[2].columnIndex=2; queries[2].operation=DataStructures::Table::QS_INCREASING_ORDER; queries[3].columnIndex=3; queries[3].operation=DataStructures::Table::QS_DECREASING_ORDER; table.SortTable(queries, 4, rows); unsigned i; char out[256]; printf("Sort: Ascending except for column index 3\n"); for (i=0; i < table.GetRowCount(); i++) { table.PrintRow(out,256,',',true, rows[i]); printf("%s\n", out); } // Test query: // Don't return column 3, and swap columns 0 and 2 unsigned columnsToReturn[4]; columnsToReturn[0]=2; columnsToReturn[1]=1; columnsToReturn[2]=0; columnsToReturn[3]=4; DataStructures::Table resultsTable; table.QueryTable(columnsToReturn,4,0,0,&resultsTable); printf("Query: Don't return column 3, and swap columns 0 and 2:\n"); for (i=0; i < resultsTable.GetRowCount(); i++) { resultsTable.PrintRow(out,256,',',true, resultsTable.GetRowByIndex(i)); printf("%s\n", out); } // Test filter: // Only return rows with column index 4 empty DataStructures::Table::FilterQuery inclusionFilters[3]; inclusionFilters[0].columnIndex=4; inclusionFilters[0].operation=DataStructures::Table::QF_IS_EMPTY; // inclusionFilters[0].cellValue; // Unused for IS_EMPTY table.QueryTable(0,0,inclusionFilters,1,&resultsTable); printf("Filter: Only return rows with column index 4 empty:\n"); for (i=0; i < resultsTable.GetRowCount(); i++) { resultsTable.PrintRow(out,256,',',true, resultsTable.GetRowByIndex(i)); printf("%s\n", out); } // Column 5 empty and column 0 == Kevin Jenkins inclusionFilters[0].columnIndex=4; inclusionFilters[0].operation=DataStructures::Table::QF_IS_EMPTY; inclusionFilters[1].columnIndex=0; inclusionFilters[1].operation=DataStructures::Table::QF_EQUAL; inclusionFilters[1].cellValue.Set("Kevin Jenkins"); table.QueryTable(0,0,inclusionFilters,2,&resultsTable); printf("Filter: Column 5 empty and column 0 == Kevin Jenkins:\n"); for (i=0; i < resultsTable.GetRowCount(); i++) { resultsTable.PrintRow(out,256,',',true, resultsTable.GetRowByIndex(i)); printf("%s\n", out); } RakNet::BitStream bs; printf("PreSerialize:\n"); for (i=0; i < table.GetRowCount(); i++) { table.PrintRow(out,256,',',true, table.GetRowByIndex(i)); printf("%s\n", out); } StringCompressor::AddReference(); TableSerializer::Serialize(&table, &bs); TableSerializer::Deserialize(&bs, &table); StringCompressor::RemoveReference(); printf("PostDeserialize:\n"); for (i=0; i < table.GetRowCount(); i++) { table.PrintRow(out,256,',',true, table.GetRowByIndex(i)); printf("%s\n", out); } int a=5; } */