xref: /AOO41X/main/odk/examples/DevelopersGuide/Database/DriverSkeleton/SConnection.cxx (revision 27b2fc91b67b282ef25e5c8fc07f05afd8a62640)
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34 
35 #include "SConnection.hxx"
36 
37 #include "SDatabaseMetaData.hxx"
38 #include "SDriver.hxx"
39 #include "SStatement.hxx"
40 #include "SPreparedStatement.hxx"
41 #include <com/sun/star/sdbc/ColumnValue.hpp>
42 #include <com/sun/star/sdbc/XRow.hpp>
43 #include <com/sun/star/sdbc/TransactionIsolation.hpp>
44 #include <com/sun/star/lang/DisposedException.hpp>
45 
46 using namespace connectivity::skeleton;
47 
48 //------------------------------------------------------------------------------
49 using namespace com::sun::star::uno;
50 using namespace com::sun::star::lang;
51 using namespace com::sun::star::beans;
52 using namespace com::sun::star::sdbc;
53 // --------------------------------------------------------------------------------
54 OConnection::OConnection(SkeletonDriver*	_pDriver)
55 						 : OSubComponent<OConnection, OConnection_BASE>((::cppu::OWeakObject*)_pDriver, this),
56 						 OMetaConnection_BASE(m_aMutex),
57 						 m_pDriver(_pDriver),
58 						 m_bClosed(sal_False),
59 						 m_xMetaData(NULL),
60 						 m_bUseCatalog(sal_False),
61 						 m_bUseOldDateFormat(sal_False)
62 {
63 	m_pDriver->acquire();
64 }
65 //-----------------------------------------------------------------------------
66 OConnection::~OConnection()
67 {
68 	if(!isClosed())
69 		close();
70 	m_pDriver->release();
71 	m_pDriver = NULL;
72 }
73 //-----------------------------------------------------------------------------
74 void SAL_CALL OConnection::release() throw()
75 {
76 	relase_ChildImpl();
77 }
78 // -----------------------------------------------------------------------------
79 //-----------------------------------------------------------------------------
80 void OConnection::construct(const ::rtl::OUString& url,const Sequence< PropertyValue >& info)  throw(SQLException)
81 {
82 	osl_incrementInterlockedCount( &m_refCount );
83 
84 	// some example code how to get the information out of the sequence
85 
86 	sal_Int32 nLen = url.indexOf(':');
87 	nLen = url.indexOf(':',nLen+1);
88 	::rtl::OUString aDSN(RTL_CONSTASCII_USTRINGPARAM("DSN=")), aUID, aPWD, aSysDrvSettings;
89 	aDSN += url.copy(nLen+1);
90 
91 	const char* pUser		= "user";
92 	const char* pTimeout	= "Timeout";
93 	const char* pSilent		= "Silent";
94 	const char* pPwd		= "password";
95 	const char* pUseCatalog = "UseCatalog";
96 	const char* pSysDrv		= "SystemDriverSettings";
97 
98 	sal_Int32 nTimeout = 20;
99 	sal_Bool bSilent = sal_True;
100 	const PropertyValue *pBegin	= info.getConstArray();
101 	const PropertyValue *pEnd	= pBegin + info.getLength();
102 	for(;pBegin != pEnd;++pBegin)
103 	{
104 		if(!pBegin->Name.compareToAscii(pTimeout))
105 			pBegin->Value >>= nTimeout;
106 		else if(!pBegin->Name.compareToAscii(pSilent))
107 			pBegin->Value >>= bSilent;
108 		else if(!pBegin->Name.compareToAscii(pUser))
109 		{
110 			pBegin->Value >>= aUID;
111 			aDSN = aDSN + ::rtl::OUString::createFromAscii(";UID=") + aUID;
112 		}
113 		else if(!pBegin->Name.compareToAscii(pPwd))
114 		{
115 			pBegin->Value >>= aPWD;
116 			aDSN = aDSN + ::rtl::OUString::createFromAscii(";PWD=") + aPWD;
117 		}
118 		else if(!pBegin->Name.compareToAscii(pUseCatalog))
119 		{
120 			pBegin->Value >>= m_bUseCatalog;
121 		}
122 		else if(!pBegin->Name.compareToAscii(pSysDrv))
123 		{
124 			pBegin->Value >>= aSysDrvSettings;
125 			aDSN += ::rtl::OUString::createFromAscii(";");
126 			aDSN += aSysDrvSettings;
127 		}
128 	}
129 	m_sUser = aUID;
130 
131 	osl_decrementInterlockedCount( &m_refCount );
132 }
133 // XServiceInfo
134 // --------------------------------------------------------------------------------
135 IMPLEMENT_SERVICE_INFO(OConnection, "com.sun.star.sdbc.drivers.skeleton.OConnection", "com.sun.star.sdbc.Connection")
136 
137 // --------------------------------------------------------------------------------
138 Reference< XStatement > SAL_CALL OConnection::createStatement(  ) throw(SQLException, RuntimeException)
139 {
140 	::osl::MutexGuard aGuard( m_aMutex );
141 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
142 
143 	// create a statement
144 	// the statement can only be executed once
145 	Reference< XStatement > xReturn = new OStatement(this);
146 	m_aStatements.push_back(WeakReferenceHelper(xReturn));
147 	return xReturn;
148 }
149 // --------------------------------------------------------------------------------
150 Reference< XPreparedStatement > SAL_CALL OConnection::prepareStatement( const ::rtl::OUString& _sSql ) throw(SQLException, RuntimeException)
151 {
152 	::osl::MutexGuard aGuard( m_aMutex );
153 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
154 
155 	// the pre
156 	if(m_aTypeInfo.empty())
157 		buildTypeInfo();
158 
159 	// create a statement
160 	// the statement can only be executed more than once
161 	Reference< XPreparedStatement > xReturn = new OPreparedStatement(this,m_aTypeInfo,_sSql);
162 	m_aStatements.push_back(WeakReferenceHelper(xReturn));
163 	return xReturn;
164 }
165 // --------------------------------------------------------------------------------
166 Reference< XPreparedStatement > SAL_CALL OConnection::prepareCall( const ::rtl::OUString& _sSql ) throw(SQLException, RuntimeException)
167 {
168 	::osl::MutexGuard aGuard( m_aMutex );
169 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
170 
171 	// not implemented yet :-) a task to do
172 	return NULL;
173 }
174 // --------------------------------------------------------------------------------
175 ::rtl::OUString SAL_CALL OConnection::nativeSQL( const ::rtl::OUString& _sSql ) throw(SQLException, RuntimeException)
176 {
177 	::osl::MutexGuard aGuard( m_aMutex );
178 	// when you need to transform SQL92 to you driver specific you can do it here
179 
180 	return _sSql;
181 }
182 // --------------------------------------------------------------------------------
183 void SAL_CALL OConnection::setAutoCommit( sal_Bool autoCommit ) throw(SQLException, RuntimeException)
184 {
185 	::osl::MutexGuard aGuard( m_aMutex );
186 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
187 	// here you  have to set your commit mode please have a look at the jdbc documentation to get a clear explanation
188 }
189 // --------------------------------------------------------------------------------
190 sal_Bool SAL_CALL OConnection::getAutoCommit(  ) throw(SQLException, RuntimeException)
191 {
192 	::osl::MutexGuard aGuard( m_aMutex );
193 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
194 	// you have to distinguish which if you are in autocommit mode or not
195 	// at normal case true should be fine here
196 
197 	return sal_True;
198 }
199 // --------------------------------------------------------------------------------
200 void SAL_CALL OConnection::commit(  ) throw(SQLException, RuntimeException)
201 {
202 	::osl::MutexGuard aGuard( m_aMutex );
203 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
204 
205 	// when you database does support transactions you should commit here
206 }
207 // --------------------------------------------------------------------------------
208 void SAL_CALL OConnection::rollback(  ) throw(SQLException, RuntimeException)
209 {
210 	::osl::MutexGuard aGuard( m_aMutex );
211 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
212 
213 
214 	// same as commit but for the other case
215 }
216 // --------------------------------------------------------------------------------
217 sal_Bool SAL_CALL OConnection::isClosed(  ) throw(SQLException, RuntimeException)
218 {
219 	::osl::MutexGuard aGuard( m_aMutex );
220 
221 	// just simple -> we are close when we are disposed taht means someone called dispose(); (XComponent)
222 	return OConnection_BASE::rBHelper.bDisposed;
223 }
224 // --------------------------------------------------------------------------------
225 Reference< XDatabaseMetaData > SAL_CALL OConnection::getMetaData(  ) throw(SQLException, RuntimeException)
226 {
227 	::osl::MutexGuard aGuard( m_aMutex );
228 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
229 
230 	// here we have to create the class with biggest interface
231 	// The answer is 42 :-)
232 	Reference< XDatabaseMetaData > xMetaData = m_xMetaData;
233 	if(!xMetaData.is())
234 	{
235 		xMetaData = new ODatabaseMetaData(this); // need the connection because it can return it
236 		m_xMetaData = xMetaData;
237 	}
238 
239 	return xMetaData;
240 }
241 // --------------------------------------------------------------------------------
242 void SAL_CALL OConnection::setReadOnly( sal_Bool readOnly ) throw(SQLException, RuntimeException)
243 {
244 	::osl::MutexGuard aGuard( m_aMutex );
245 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
246 
247 	// set you connection to readonly
248 }
249 // --------------------------------------------------------------------------------
250 sal_Bool SAL_CALL OConnection::isReadOnly(  ) throw(SQLException, RuntimeException)
251 {
252 	::osl::MutexGuard aGuard( m_aMutex );
253 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
254 
255 	// return if your connection to readonly
256 	return sal_False;
257 }
258 // --------------------------------------------------------------------------------
259 void SAL_CALL OConnection::setCatalog( const ::rtl::OUString& catalog ) throw(SQLException, RuntimeException)
260 {
261 	::osl::MutexGuard aGuard( m_aMutex );
262 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
263 
264 	// if your database doesn't work with catalogs you go to next method otherwise you kjnow what to do
265 }
266 // --------------------------------------------------------------------------------
267 ::rtl::OUString SAL_CALL OConnection::getCatalog(  ) throw(SQLException, RuntimeException)
268 {
269 	::osl::MutexGuard aGuard( m_aMutex );
270 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
271 
272 
273 	// return your current catalog
274 	return ::rtl::OUString();
275 }
276 // --------------------------------------------------------------------------------
277 void SAL_CALL OConnection::setTransactionIsolation( sal_Int32 level ) throw(SQLException, RuntimeException)
278 {
279 	::osl::MutexGuard aGuard( m_aMutex );
280 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
281 
282 	// set your isolation level
283 	// please have a look at @see com.sun.star.sdbc.TransactionIsolation
284 }
285 // --------------------------------------------------------------------------------
286 sal_Int32 SAL_CALL OConnection::getTransactionIsolation(  ) throw(SQLException, RuntimeException)
287 {
288 	::osl::MutexGuard aGuard( m_aMutex );
289 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
290 
291 
292 	// please have a look at @see com.sun.star.sdbc.TransactionIsolation
293 	return TransactionIsolation::NONE;
294 }
295 // --------------------------------------------------------------------------------
296 Reference< ::com::sun::star::container::XNameAccess > SAL_CALL OConnection::getTypeMap(  ) throw(SQLException, RuntimeException)
297 {
298 	::osl::MutexGuard aGuard( m_aMutex );
299 	checkDisposed(OConnection_BASE::rBHelper.bDisposed);
300 
301 	// if your driver has special database types you can return it here
302 
303 	return NULL;
304 }
305 // --------------------------------------------------------------------------------
306 void SAL_CALL OConnection::setTypeMap( const Reference< ::com::sun::star::container::XNameAccess >& typeMap ) throw(SQLException, RuntimeException)
307 {
308 	// the other way around
309 }
310 // --------------------------------------------------------------------------------
311 // XCloseable
312 void SAL_CALL OConnection::close(  ) throw(SQLException, RuntimeException)
313 {
314 	// we just dispose us
315 	{
316 		::osl::MutexGuard aGuard( m_aMutex );
317 		checkDisposed(OConnection_BASE::rBHelper.bDisposed);
318 
319 	}
320 	dispose();
321 }
322 // --------------------------------------------------------------------------------
323 // XWarningsSupplier
324 Any SAL_CALL OConnection::getWarnings(  ) throw(SQLException, RuntimeException)
325 {
326 	// when you collected some warnings -> return it
327 	return Any();
328 }
329 // --------------------------------------------------------------------------------
330 void SAL_CALL OConnection::clearWarnings(  ) throw(SQLException, RuntimeException)
331 {
332 	// you should clear your collected warnings here
333 }
334 //--------------------------------------------------------------------
335 void OConnection::buildTypeInfo() throw( SQLException)
336 {
337 	::osl::MutexGuard aGuard( m_aMutex );
338 
339 	Reference< XResultSet> xRs = getMetaData ()->getTypeInfo ();
340 	Reference< XRow> xRow(xRs,UNO_QUERY);
341 	// Information for a single SQL type
342 
343 	// Loop on the result set until we reach end of file
344 
345 	while (xRs->next ())
346 	{
347 		OTypeInfo aInfo;
348 		aInfo.aTypeName			= xRow->getString	(1);
349 		aInfo.nType				= xRow->getShort	(2);
350 		aInfo.nPrecision		= xRow->getInt		(3);
351 		aInfo.aLiteralPrefix	= xRow->getString	(4);
352 		aInfo.aLiteralSuffix	= xRow->getString	(5);
353 		aInfo.aCreateParams		= xRow->getString	(6);
354 		aInfo.bNullable			= xRow->getBoolean	(7) == ColumnValue::NULLABLE;
355 		aInfo.bCaseSensitive	= xRow->getBoolean	(8);
356 		aInfo.nSearchType		= xRow->getShort	(9);
357 		aInfo.bUnsigned			= xRow->getBoolean	(10);
358 		aInfo.bCurrency			= xRow->getBoolean	(11);
359 		aInfo.bAutoIncrement	= xRow->getBoolean	(12);
360 		aInfo.aLocalTypeName	= xRow->getString	(13);
361 		aInfo.nMinimumScale		= xRow->getShort	(14);
362 		aInfo.nMaximumScale		= xRow->getShort	(15);
363 		aInfo.nNumPrecRadix		= (sal_Int16)xRow->getInt(18);
364 
365 
366 
367 		// Now that we have the type info, save it
368 		// in the Hashtable if we don't already have an
369 		// entry for this SQL type.
370 
371 		m_aTypeInfo.push_back(aInfo);
372 	}
373 
374 	// Close the result set/statement.
375 
376 	Reference< XCloseable> xClose(xRs,UNO_QUERY);
377 	xClose->close();
378 }
379 //------------------------------------------------------------------------------
380 void OConnection::disposing()
381 {
382 	// we noticed that we should be destroied in near future so we have to dispose our statements
383 	::osl::MutexGuard aGuard(m_aMutex);
384 
385 	for (OWeakRefArray::iterator i = m_aStatements.begin(); m_aStatements.end() != i; ++i)
386 	{
387 		Reference< XComponent > xComp(i->get(), UNO_QUERY);
388 		if (xComp.is())
389 			xComp->dispose();
390 	}
391 	m_aStatements.clear();
392 
393 	m_bClosed	= sal_True;
394 	m_xMetaData = ::com::sun::star::uno::WeakReference< ::com::sun::star::sdbc::XDatabaseMetaData>();
395 
396 	dispose_ChildImpl();
397 	OConnection_BASE::disposing();
398 }
399 // -----------------------------------------------------------------------------
400 
401 
402 
403