int main()
{
// uncomment to redirect streams to a file
//Kompex::CerrRedirection cerrRedirection("error.log");
//Kompex::CoutRedirection coutRedirection("output.log");
try
{
// create and open database
Kompex::SQLiteDatabase *pDatabase = new Kompex::SQLiteDatabase("test.db", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
// create statement instance for sql queries/statements
Kompex::SQLiteStatement *pStmt = new Kompex::SQLiteStatement(pDatabase);
std::cout << "SQLite version: " << pDatabase->GetLibVersionNumber() << std::endl;
// ---------------------------------------------------------------------------------------------------------
// create table and insert some data
pStmt->SqlStatement("CREATE TABLE user (userID INTEGER NOT NULL PRIMARY KEY, lastName VARCHAR(50) NOT NULL, firstName VARCHAR(50), age INTEGER, weight DOUBLE)");
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (1, 'Lehmann', 'Jamie', 20, 65.5)");
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (2, 'Burgdorf', 'Peter', 55, NULL)");
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (3, 'Lehmann', 'Fernando', 18, 70.2)");
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (4, 'Lehmann', 'Carlene ', 17, 50.8)");
// ---------------------------------------------------------------------------------------------------------
// insert some data with Bind..() methods
pStmt->Sql("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES(?, ?, ?, ?, ?);");
pStmt->BindInt(1, 5);
pStmt->BindString(2, "Murahama");
pStmt->BindString(3, "Yura");
pStmt->BindInt(4, 28);
pStmt->BindDouble(5, 60.2);
// executes the INSERT statement and cleans-up automatically
pStmt->ExecuteAndFree();
// ---------------------------------------------------------------------------------------------------------
// lets have a look on a query which is shown in console
std::cout << std::endl;
pStmt->GetTable("SELECT firstName, userID, age, weight FROM user WHERE lastName = 'Lehmann';", 13);
std::cout << std::endl;
// some example SQLite aggregate functions
std::cout << "COUNT(*): " << pStmt->SqlAggregateFuncResult("SELECT COUNT(*) FROM user WHERE lastName = 'Lehmann';") << std::endl;
std::cout << "COUNT(weight): " << pStmt->SqlAggregateFuncResult("SELECT COUNT(weight) FROM user;") << std::endl;
std::cout << "MAX(age): " << pStmt->SqlAggregateFuncResult("SELECT MAX(age) FROM user;") << std::endl;
std::cout << "MIN(age): " << pStmt->SqlAggregateFuncResult("SELECT MIN(age) FROM user;") << std::endl;
std::cout << "AVG(age): " << pStmt->SqlAggregateFuncResult("SELECT AVG(age) FROM user;") << std::endl;
std::cout << "SUM(age): " << pStmt->SqlAggregateFuncResult("SELECT SUM(age) FROM user;") << std::endl;
std::cout << "TOTAL(age): " << pStmt->SqlAggregateFuncResult("SELECT TOTAL(age) FROM user;") << std::endl;
// ---------------------------------------------------------------------------------------------------------
// sql query - searching for all people with lastName "Lehmann"
pStmt->Sql("SELECT firstName FROM user WHERE lastName = 'Lehmann';");
// after a Sql() call we can get some special information
std::cout << "\nGetColumnName: " << pStmt->GetColumnName(0) << std::endl;
std::cout << "GetColumnCount: " << pStmt->GetColumnCount() << std::endl;
std::cout << "GetColumnDatabaseName: " << pStmt->GetColumnDatabaseName(0) << std::endl;
std::cout << "GetColumnTableName: " << pStmt->GetColumnTableName(0) << std::endl;
std::cout << "GetColumnOriginName: " << pStmt->GetColumnOriginName(0) << "\n" << std::endl;
// do not forget to clean-up
pStmt->FreeQuery();
// ---------------------------------------------------------------------------------------------------------
// another sql query
pStmt->Sql("SELECT * FROM user WHERE firstName = 'Jamie';");
// after a Sql() call we can get some other special information
std::cout << "GetColumnName(0): " << pStmt->GetColumnName(0) << std::endl;
std::cout << "GetColumnName(1): " << pStmt->GetColumnName(1) << std::endl;
std::cout << "GetColumnName(2): " << pStmt->GetColumnName(2) << std::endl;
std::cout << "GetColumnName(3): " << pStmt->GetColumnName(3) << std::endl;
std::cout << "GetColumnName(4): " << pStmt->GetColumnName(4) << std::endl;
std::cout << "GetColumnCount: " << pStmt->GetColumnCount() << std::endl;
std::cout << "GetColumnDeclaredDatatype(0): " << pStmt->GetColumnDeclaredDatatype(0) << std::endl;
std::cout << "GetColumnDeclaredDatatype(1): " << pStmt->GetColumnDeclaredDatatype(1) << std::endl;
std::cout << "GetColumnDeclaredDatatype(2): " << pStmt->GetColumnDeclaredDatatype(2) << std::endl;
std::cout << "GetColumnDeclaredDatatype(3): " << pStmt->GetColumnDeclaredDatatype(3) << std::endl;
std::cout << "GetColumnDeclaredDatatype(4): " << pStmt->GetColumnDeclaredDatatype(4) << std::endl;
// process all results
while(pStmt->FetchRow())
{
std::cout << "\nGetDataCount: " << pStmt->GetDataCount() << std::endl;
std::cout << "SQL query - GetColumnDouble(0): " << pStmt->GetColumnDouble(0) << std::endl;
std::cout << "SQL query - GetColumnString(1): " << pStmt->GetColumnString(1) << std::endl;
std::cout << "SQL query - GetColumnString(2): " << pStmt->GetColumnString(2) << std::endl;
std::cout << "SQL query - GetColumnString(3): " << pStmt->GetColumnString(3) << std::endl;
std::cout << "SQL query - GetColumnString(4): " << pStmt->GetColumnString(4) << std::endl;
std::cout << "\nColumnTypes (look at the documentation for the meaning of the numbers):\n";
std::cout << "GetColumnType(0): " << pStmt->GetColumnType(0) << std::endl;
std::cout << "GetColumnType(1): " << pStmt->GetColumnType(1) << std::endl;
std::cout << "GetColumnType(2): " << pStmt->GetColumnType(2) << std::endl;
std::cout << "GetColumnType(3): " << pStmt->GetColumnType(3) << std::endl;
std::cout << "GetColumnType(4): " << pStmt->GetColumnType(4) << std::endl;
}
// do not forget to clean-up
pStmt->FreeQuery();
// ---------------------------------------------------------------------------------------------------------
// a little example how to get some queried data via column name
std::cout << "\nGet some queried data via column name:\n";
pStmt->Sql("SELECT * FROM user WHERE lastName = 'Lehmann';");
// process all results
while(pStmt->FetchRow())
{
std::cout << "firstName: " << pStmt->GetColumnString("firstName") << std::endl;
std::cout << "age: " << pStmt->GetColumnInt("age") << std::endl;
}
// do not forget to clean-up
pStmt->FreeQuery();
// ---------------------------------------------------------------------------------------------------------
// example for prepared statements - repetitive execution (SELECT)
std::cout << "\nPrepared statement - repetitive execution (SELECT):\n";
pStmt->Sql("SELECT * FROM user WHERE userID=@id");
for(int i = 1; i <= 3; ++i)
{
// bind an integer to the prepared statement
pStmt->BindInt(1, i);
// and now fetch all results
while(pStmt->FetchRow())
std::cout << pStmt->GetColumnCString(0) << " " << pStmt->GetColumnCString(1) << std::endl;
// reset the prepared statement
pStmt->Reset();
}
// do not forget to clean-up
pStmt->FreeQuery();
// ---------------------------------------------------------------------------------------------------------
// example for prepared statements - repetitive execution (INSERT/UPDATE/DELETE)
std::cout << "\nPrepared statement - repetitive execution (INSERT/UPDATE/DELETE):\n";
std::cout << "no output here - there are only some INSERTs ;)\n";
// create a table structure
pStmt->SqlStatement("CREATE TABLE flower (flowerID INTEGER NOT NULL PRIMARY KEY, name VARCHAR(50) NOT NULL, size DOUBLE)");
// create the prepared statement
pStmt->Sql("INSERT INTO flower (flowerID, name, size) VALUES (@flowerID, @name, @size)");
// bind all three values
pStmt->BindInt(1, 1); // flowerID
pStmt->BindString(2, "rose"); // name
pStmt->BindDouble(3, 50.5); // size
// execute the statement and reset the bindings
pStmt->Execute();
pStmt->Reset();
// here we go - the second round
pStmt->BindInt(1, 2); // flowerID
pStmt->BindString(2, "primrose"); // name
pStmt->BindDouble(3, 6.21); // size
// execute the statement and reset the bindings
pStmt->Execute();
pStmt->Reset();
// here we go - the second round
pStmt->BindInt(1, 3); // flowerID
pStmt->BindString(2, "rhododendron"); // name
pStmt->BindDouble(3, 109.84); // size
// execute the statement
pStmt->Execute();
// we don't need the prepared statement anymore so we clean-up everything
pStmt->FreeQuery();
// ---------------------------------------------------------------------------------------------------------
// two possibilities to update data in the database
// the first way
std::cout << "\nUPDATE possibility 1: prepared statement - single execution";
pStmt->Sql("UPDATE user SET lastName=@lastName, age=@age WHERE userID=@userID");
// bind an integer to the prepared statement
pStmt->BindString(1, "Urushihara"); // bind lastName
pStmt->BindInt(2, 56); // bind age
pStmt->BindInt(3, 2); // bind userID
// execute it and clean-up
pStmt->ExecuteAndFree();
// the second way
std::cout << "\nUPDATE possibility 2: common statement\n";
pStmt->SqlStatement("UPDATE user SET weight=51.5, age=18 WHERE firstName='Carlene'");
// ---------------------------------------------------------------------------------------------------------
// get some instant results
std::cout << "\nSELECT lastName FROM user WHERE userID = 3;\n" << pStmt->GetSqlResultString("SELECT lastName FROM user WHERE userID = 3");
std::cout << "\nSELECT age FROM user WHERE userID = 4;\n" << pStmt->GetSqlResultInt("SELECT age FROM user WHERE userID = 4");
std::cout << "\nSELECT weight FROM user WHERE userID = 3;\n" << pStmt->GetSqlResultDouble("SELECT weight FROM user WHERE userID = 3");
// don't forget to delete the pointer for all GetSqlResult%() methods which return a pointer
const unsigned char *lastName = pStmt->GetSqlResultCString("SELECT lastName FROM user WHERE userID = 2");
// do something with lastName
delete[] lastName;
// ---------------------------------------------------------------------------------------------------------
// DELETE statement and get afterwards the number of affected rows
pStmt->SqlStatement("DELETE FROM user WHERE lastName = 'Lehmann'");
std::cout << "\n\nGetDatabaseChanges: " << pDatabase->GetDatabaseChanges() << std::endl;
// let's see, how many changes we have done
std::cout << "GetTotalDatabaseChanges: " << pDatabase->GetTotalDatabaseChanges() << std::endl;
std::cout << std::endl;
// ---------------------------------------------------------------------------------------------------------
// get all metadata from one column
pStmt->GetTableColumnMetadata("user", "userID");
std::cout << std::endl;
// ---------------------------------------------------------------------------------------------------------
// now we want try a transaction
// if an error occurs, a rollback is automatically performed
// note: you must use Transaction()
pStmt->BeginTransaction();
pStmt->Transaction("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (10, 'Kanzaki', 'Makoto', 23, 76.9)");
FunctionWithLocalVariable(pStmt);
pStmt->Transaction("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (12, 'Kanzaki', 'Peter', 63, 101.1)");
pStmt->CommitTransaction();
// if you want react on errors by yourself, you can use a own try() and catch() block
// note: you must use SqlStatement()
try
{
pStmt->BeginTransaction();
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (10, 'Kanzaki', 'Makoto', 23, 76.9)");
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (11, 'Kanzaki', 'Yura', 20, 56.9)");
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (12, 'Kanzaki', 'Peter', 63, 101.1)");
pStmt->SqlStatement("INSERT INTO user (userID, lastName, firstName, age, weight) VALUES (10, 'Henschel', 'Robert', 10, 34.5)");
pStmt->CommitTransaction();
}
catch(Kompex::SQLiteException &exception)
{
std::cerr << "Exception Occured: " << exception.GetString();
std::cerr << "SQLite result code: " << exception.GetSqliteResultCode() << std::endl;
pStmt->RollbackTransaction();
std::cerr << "Rollback has been executed!" << std::endl;
std::cerr << "This is our own catch() block!" << std::endl;
}
// ---------------------------------------------------------------------------------------------------------
// Kompex::SQLiteBlob example
std::cout << "\nKompex::SQLiteBlob example\n";
// create a little table and fill it with some dummy data
// the content of the BLOBs is simple plaintext so that you can see what happens
pStmt->SqlStatement("CREATE TABLE boarduser (userID INTEGER NOT NULL PRIMARY KEY, username VARCHAR(20), picture BLOB)");
pStmt->SqlStatement("INSERT INTO boarduser (userID, username, picture) VALUES (1, 'apori', 'abcdefghijklmnopqrstuvwxyz')");
pStmt->SqlStatement("INSERT INTO boarduser (userID, username, picture) VALUES (2, 'sarina', 'abcdefghijklmnopqrstuvwxyz')");
// open the existing BLOB for user 'apori'
Kompex::SQLiteBlob *pKompexBlob = new Kompex::SQLiteBlob(pDatabase, "main", "boarduser", "picture", 1);
// get the size of the current BLOB
std::cout << "GetBlobSize(): " << pKompexBlob->GetBlobSize() << std::endl;
// read the whole BLOB value
int blobSize = pKompexBlob->GetBlobSize();
char *readBuffer = new char[blobSize + 1];
readBuffer[blobSize] = '\0';
pKompexBlob->ReadBlob(readBuffer, blobSize);
std::cout << "ReadBlob() output: " << readBuffer << std::endl;
// overwrite a part of the BLOB
std::cout << "WriteBlob() - change the BLOB data\n";
char newData[8] = "-HELLO-";
pKompexBlob->WriteBlob(newData, sizeof(newData) - 1, 10);
// and read the whole BLOB value again
pKompexBlob->ReadBlob(readBuffer, blobSize);
std::cout << "ReadBlob() output: " << readBuffer << std::endl;
delete readBuffer;
delete pKompexBlob;
// ---------------------------------------------------------------------------------------------------------
// create a sql statement with SQLite functions
const char *param1 = "It's a happy day.";
const char *param2 = "Muhahaha!";
std::cout << "\n" << pStmt->Mprintf("INSERT INTO table VALUES('%q', '%q')", param1, param2) << std::endl;
// ---------------------------------------------------------------------------------------------------------
// statistics
std::cout << "\nGetNumberOfCheckedOutLookasideMemorySlots: " << pDatabase->GetNumberOfCheckedOutLookasideMemorySlots() << std::endl;
std::cout << "GetHighestNumberOfCheckedOutLookasideMemorySlots: " << pDatabase->GetHighestNumberOfCheckedOutLookasideMemorySlots() << std::endl;
std::cout << "GetHeapMemoryUsedByPagerCaches: " << pDatabase->GetHeapMemoryUsedByPagerCaches() << std::endl;
std::cout << "GetHeapMemoryUsedToStoreSchemas: " << pDatabase->GetHeapMemoryUsedToStoreSchemas() << std::endl;
std::cout << "GetHeapAndLookasideMemoryUsedByPreparedStatements: " << pDatabase->GetHeapAndLookasideMemoryUsedByPreparedStatements() << std::endl;
std::cout << "GetPagerCacheHitCount: " << pDatabase->GetPagerCacheHitCount() << std::endl;
std::cout << "GetPagerCacheMissCount: " << pDatabase->GetPagerCacheMissCount() << std::endl;
std::cout << "GetNumberOfDirtyCacheEntries: " << pDatabase->GetNumberOfDirtyCacheEntries() << std::endl;
std::cout << "GetNumberOfUnresolvedForeignKeys: " << pDatabase->GetNumberOfUnresolvedForeignKeys() << std::endl;
std::cout << "GetLookasideMemoryHitCount: " << pDatabase->GetLookasideMemoryHitCount() << std::endl;
std::cout << "GetLookasideMemoryMissCountDueToSmallSlotSize: " << pDatabase->GetLookasideMemoryMissCountDueToSmallSlotSize() << std::endl;
std::cout << "GetLookasideMemoryMissCountDueToFullMemory: " << pDatabase->GetLookasideMemoryMissCountDueToFullMemory() << std::endl;
// ---------------------------------------------------------------------------------------------------------
// clean-up
delete pStmt;
delete pDatabase;
}
catch(Kompex::SQLiteException &exception)
{
std::cerr << "\nException Occured" << std::endl;
exception.Show();
std::cerr << "SQLite result code: " << exception.GetSqliteResultCode() << std::endl;
}
/*
// complete example for the usage of file and memory databases
// (database layout is only fictitious)
Kompex::SQLiteDatabase *pDatabase = new Kompex::SQLiteDatabase("scores.db", SQLITE_OPEN_READWRITE, 0);
// move database to memory, so that we are work on the memory database hence
pDatabase->MoveDatabaseToMemory();
Kompex::SQLiteStatement *pStmt = new Kompex::SQLiteStatement(pDatabase);
// insert some data sets into the memory database
pStmt->SqlStatement("INSERT INTO score(id, lastScore, avgScore) VALUES(1, 429, 341)");
pStmt->SqlStatement("INSERT INTO score(id, lastScore, avgScore) VALUES(2, 37, 44)");
pStmt->SqlStatement("INSERT INTO score(id, lastScore, avgScore) VALUES(3, 310, 280)");
// save the memory database to a file
// if you don't do it, all database changes will be lost after closing the memory database
pDatabase->SaveDatabaseFromMemoryToFile("newScores.db");
delete pStmt;
delete pDatabase;
*/
std::cin.get();
return 0;
}
int main(int argc, const char *argv[])
{
if(argc != 3) {
std::cout << "Usage: #> ./osg_openctm_sqlite inputdb row\n";
std::cout << "* draw an openctm mesh stored as a row in an sqlite db with osg\n";
return 0;
}
Kompex::SQLiteDatabase *pDatabase = new Kompex::SQLiteDatabase(argv[1],SQLITE_OPEN_READWRITE,0);
Kompex::SQLiteStatement *pStmt = new Kompex::SQLiteStatement(pDatabase);
int cRow = 0;
int rowId = 0;
int dbRow = 2;
bool isEmpty = false;
std::string rowFileKey;
pStmt->Sql("SELECT rowid,filekey,empty FROM grid_mesh;");
while(pStmt->FetchRow()) {
if(cRow == dbRow) {
// row file key
rowId = pStmt->GetColumnInt(0);
rowFileKey = pStmt->GetColumnString(1);
isEmpty = pStmt->GetColumnBool(2);
}
cRow++;
}
pStmt->FreeQuery();
Kompex::SQLiteBlob *pKompexBlob;
if(!isEmpty) {
// read in ctm blob to memory
pKompexBlob=new Kompex::SQLiteBlob(pDatabase,"main","grid_mesh","mesh",1);
size = pKompexBlob->GetBlobSize();
memblock = new char[size];
pKompexBlob->ReadBlob(memblock,size);
delete pKompexBlob;
std::cout << "# Read in " << rowFileKey << " (" << size << " bytes)\n";
// uncompress ctm
CTMcontext context;
CTMuint vertCount, triCount;
CTMuint const* indices;
CTMfloat const * vertices;
context = ctmNewContext(CTM_IMPORT);
g_pos = 0;
ctmLoadCustom(context,ctmReadBlob,(void*)memblock);
if(ctmGetError(context) == CTM_NONE)
{
// access the mesh data
vertCount = ctmGetInteger(context, CTM_VERTEX_COUNT);
vertices = ctmGetFloatArray(context, CTM_VERTICES);
triCount = ctmGetInteger(context, CTM_TRIANGLE_COUNT);
indices = ctmGetIntegerArray(context, CTM_INDICES);
std::cout << "# Mesh has " << vertCount << " vertices\n";
std::cout << "# Mesh has " << triCount << " triangles\n";
// build up openscenegraph geometry
osg::ref_ptr<osg::Vec3Array> listVxArray = new osg::Vec3Array(vertCount);
unsigned int vxIdx=0;
for(int i=0; i < listVxArray->size(); i++) {
osg::Vec3 vertex;
vertex.x() = vertices[vxIdx]; vxIdx++;
vertex.y() = vertices[vxIdx]; vxIdx++;
vertex.z() = vertices[vxIdx]; vxIdx++;
listVxArray->at(i) = vertex;
}
osg::ref_ptr<osg::DrawElementsUInt> listIdxs =
new osg::DrawElementsUInt(GL_TRIANGLES,triCount*3);
for(int i=0; i < listIdxs->size(); i++) {
listIdxs->at(i) = indices[i];
}
osg::ref_ptr<osg::Geometry> geomMesh = new osg::Geometry;
geomMesh->setVertexArray(listVxArray.get());
geomMesh->setNormalArray(listVxArray.get());
geomMesh->addPrimitiveSet(listIdxs.get());
osg::ref_ptr<osg::Geode> geodeMesh = new osg::Geode;
geodeMesh->addDrawable(geomMesh.get());
osg::ref_ptr<osg::Group> groupRoot = new osg::Group;
groupRoot->addChild(geodeMesh.get());
// free ctm memory
ctmFreeContext(context);
// start viewer
osgViewer::Viewer viewer;
viewer.setThreadingModel(osgViewer::ViewerBase::SingleThreaded);
viewer.setUpViewInWindow(100,100,800,480);
viewer.setSceneData(groupRoot.get());
return viewer.run();
}
else
{
std::cout << "# Fatal error reading in mesh file! Exiting...\n";
ctmFreeContext(context);
return 0;
}
// // stuff
delete[] memblock;
// delete pStmt;
// delete pDatabase;
return 0;
}
else {
std::cout << "# Row " << rowId << " was empty! Exiting...\n";
delete pStmt;
delete pDatabase;
return 0;
}
}
