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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*************************************************************************
3 : *
4 : * Effective License of whole file:
5 : *
6 : * This library is free software; you can redistribute it and/or
7 : * modify it under the terms of the GNU Lesser General Public
8 : * License version 2.1, as published by the Free Software Foundation.
9 : *
10 : * This library is distributed in the hope that it will be useful,
11 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 : * Lesser General Public License for more details.
14 : *
15 : * You should have received a copy of the GNU Lesser General Public
16 : * License along with this library; if not, write to the Free Software
17 : * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
18 : * MA 02111-1307 USA
19 : *
20 : * Parts "Copyright by Sun Microsystems, Inc" prior to August 2011:
21 : *
22 : * The Contents of this file are made available subject to the terms of
23 : * the GNU Lesser General Public License Version 2.1
24 : *
25 : * Copyright: 2000 by Sun Microsystems, Inc.
26 : *
27 : * Contributor(s): Joerg Budischewski
28 : *
29 : * All parts contributed on or after August 2011:
30 : *
31 : * This Source Code Form is subject to the terms of the Mozilla Public
32 : * License, v. 2.0. If a copy of the MPL was not distributed with this
33 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
34 : *
35 : ************************************************************************/
36 :
37 : #include "pq_resultset.hxx"
38 : #include "pq_resultsetmetadata.hxx"
39 :
40 : #include <connectivity/dbexception.hxx>
41 :
42 : #include <com/sun/star/sdbc/FetchDirection.hpp>
43 : #include <com/sun/star/sdbc/ResultSetConcurrency.hpp>
44 : #include <com/sun/star/sdbc/ResultSetType.hpp>
45 : #include <com/sun/star/sdbc/DataType.hpp>
46 :
47 :
48 : using osl::MutexGuard;
49 :
50 : using com::sun::star::uno::RuntimeException;
51 : using com::sun::star::uno::Any;
52 : using com::sun::star::uno::makeAny;
53 : using com::sun::star::uno::Reference;
54 : using com::sun::star::uno::XInterface;
55 :
56 : using com::sun::star::sdbc::SQLException;
57 : using com::sun::star::sdbc::XResultSetMetaData;
58 :
59 :
60 : namespace pq_sdbc_driver
61 : {
62 :
63 0 : void ResultSet::checkClosed()
64 : throw ( com::sun::star::sdbc::SQLException, com::sun::star::uno::RuntimeException )
65 : {
66 0 : if( ! m_result )
67 : {
68 : throw SQLException( "pq_resultset: already closed",
69 0 : *this, OUString(), 1, Any() );
70 : }
71 :
72 0 : if( ! m_ppSettings || ! *m_ppSettings || ! (*m_ppSettings)->pConnection )
73 : {
74 : throw SQLException( "pq_resultset: statement has been closed already",
75 0 : *this, OUString(), 1, Any() );
76 : }
77 :
78 0 : }
79 :
80 0 : ResultSet::ResultSet( const ::rtl::Reference< RefCountedMutex > & refMutex,
81 : const Reference< XInterface > & owner,
82 : ConnectionSettings **ppSettings,
83 : PGresult * result,
84 : const OUString &schema,
85 : const OUString &table)
86 : : BaseResultSet(
87 0 : refMutex, owner, PQntuples( result ),
88 0 : PQnfields( result ),(*ppSettings)->tc ),
89 : m_result( result ),
90 : m_schema( schema ),
91 : m_table( table ),
92 0 : m_ppSettings( ppSettings )
93 : {
94 : // LEM TODO: shouldn't these things be inherited from the statement or something like that?
95 0 : sal_Bool b = sal_False;
96 : // Positioned update/delete not supported, so no cursor name
97 : // Fetch direction and size are cursor-specific things, so not used now.
98 : // Fetch size not set
99 0 : m_props[ BASERESULTSET_FETCH_DIRECTION ] = makeAny(
100 0 : com::sun::star::sdbc::FetchDirection::UNKNOWN);
101 : // No escape processing for now
102 0 : m_props[ BASERESULTSET_ESCAPE_PROCESSING ] = Any( &b, getBooleanCppuType() );
103 : // Bookmarks not implemented for now
104 0 : m_props[ BASERESULTSET_IS_BOOKMARKABLE ] = Any( &b, getBooleanCppuType() );
105 0 : m_props[ BASERESULTSET_RESULT_SET_CONCURRENCY ] = makeAny(
106 0 : com::sun::star::sdbc::ResultSetConcurrency::READ_ONLY );
107 0 : m_props[ BASERESULTSET_RESULT_SET_TYPE ] = makeAny(
108 0 : com::sun::star::sdbc::ResultSetType::SCROLL_INSENSITIVE );
109 0 : }
110 :
111 :
112 0 : Any ResultSet::getValue( sal_Int32 columnIndex )
113 : {
114 0 : Any ret;
115 0 : if( PQgetisnull( m_result, m_row, columnIndex -1 ) )
116 : {
117 0 : m_wasNull = true;
118 : }
119 : else
120 : {
121 0 : m_wasNull = false;
122 0 : ret <<= OUString(
123 0 : PQgetvalue( m_result, m_row , columnIndex -1 ) ,
124 0 : PQgetlength( m_result, m_row , columnIndex -1 ) ,
125 0 : (*m_ppSettings)->encoding );
126 :
127 : }
128 0 : return ret;
129 : }
130 :
131 0 : ResultSet::~ResultSet()
132 0 : {}
133 :
134 0 : void ResultSet::close( ) throw (SQLException, RuntimeException, std::exception)
135 : {
136 0 : Reference< XInterface > owner;
137 : {
138 0 : MutexGuard guard( m_refMutex->mutex );
139 0 : if( m_result )
140 : {
141 0 : PQclear(m_result );
142 0 : m_result = 0;
143 0 : m_row = -1;
144 : }
145 0 : owner = m_owner;
146 0 : m_owner.clear();
147 0 : }
148 0 : }
149 :
150 0 : Reference< XResultSetMetaData > ResultSet::getMetaData( ) throw (SQLException, RuntimeException, std::exception)
151 : {
152 0 : MutexGuard guard( m_refMutex->mutex );
153 0 : checkClosed();
154 : return new ResultSetMetaData(
155 0 : m_refMutex, this, this, m_ppSettings, m_result, m_schema, m_table );
156 : }
157 :
158 0 : sal_Int32 ResultSet::findColumn( const OUString& columnName )
159 : throw (SQLException, RuntimeException, std::exception)
160 : {
161 0 : MutexGuard guard( m_refMutex->mutex );
162 0 : checkClosed();
163 : sal_Int32 res = PQfnumber( m_result,
164 0 : OUStringToOString( columnName, (*m_ppSettings)->encoding ).getStr());
165 : /* PQfnumber reurn -1 for not found, which is waht we want
166 : * otehr than that we use col number as 1-based not 0-based */
167 0 : if(res >= 0)
168 : {
169 0 : res += 1;
170 : }
171 : else
172 : {
173 0 : ::dbtools::throwInvalidColumnException( columnName, *this );
174 : assert(false);
175 : }
176 0 : return res;
177 : }
178 :
179 0 : static bool isNumber( const char * data, sal_Int32 len )
180 : {
181 0 : bool ret = false;
182 0 : if( len )
183 : {
184 0 : ret = true;
185 0 : for( int i = 0 ; i < len ; i ++ )
186 : {
187 0 : if( ( data[i] >= '0' && data[i] <= '9' ) ||
188 0 : data[i] == '-' || data[i] == '+' || data[i] == '.' || data[i] == ',' )
189 : {
190 0 : if( data[i] == '-' && i != 0 && i != len-1 )
191 : {
192 : // no number, maybe a date
193 0 : ret = false;
194 0 : break;
195 : }
196 : }
197 : else
198 : {
199 0 : ret = false;
200 0 : break;
201 : }
202 : }
203 : }
204 0 : return ret;
205 : }
206 :
207 0 : static bool isInteger( const char * data, sal_Int32 len )
208 : {
209 0 : bool ret = false;
210 0 : if( len )
211 : {
212 0 : ret = true;
213 0 : for( int i = 0 ; i < len ; i ++ )
214 : {
215 0 : if( ( data[i] >= '0' && data[i] <= '9' ) ||
216 0 : data[i] == '-' || data[i] == '+' )
217 : {
218 0 : if( data[i] == '-' && i != 0 && i != len-1 )
219 : {
220 : // no number, maybe a date
221 0 : ret = false;
222 0 : break;
223 : }
224 : }
225 : else
226 : {
227 0 : ret = false;
228 0 : break;
229 : }
230 : }
231 : }
232 0 : return ret;
233 : }
234 :
235 0 : static bool isDate( const char * data, sal_Int32 len )
236 : {
237 0 : return 10 == len &&
238 0 : '-' == data[4] &&
239 0 : '-' == data[7] &&
240 0 : isInteger( &(data[0]),4 ) &&
241 0 : isInteger( &(data[5]),2) &&
242 0 : isInteger( &(data[8]),2 );
243 : }
244 :
245 0 : static bool isTime( const char * data, sal_Int32 len )
246 : {
247 0 : return 8 == len &&
248 0 : ':' == data[2] &&
249 0 : ':' == data[5] &&
250 0 : isInteger( &(data[0]),2 ) &&
251 0 : isInteger( &(data[3]),2) &&
252 0 : isInteger( &(data[6]),2 );
253 :
254 : }
255 :
256 0 : static bool isTimestamp( const char * data, sal_Int32 len )
257 : {
258 0 : return len == 19 && isDate( data, 10) && isTime( &(data[11]),8 );
259 : }
260 :
261 0 : sal_Int32 ResultSet::guessDataType( sal_Int32 column )
262 : {
263 : // we don't look into more than 100 rows ...
264 0 : sal_Int32 ret = com::sun::star::sdbc::DataType::INTEGER;
265 :
266 0 : int maxRows = ( m_rowCount > 100 ? 100 : m_rowCount );
267 0 : for( int i = 0 ; i < maxRows ; i ++ )
268 : {
269 0 : if( ! PQgetisnull( m_result, i , column-1 ) )
270 : {
271 0 : const char * p = PQgetvalue( m_result, i , column -1 );
272 0 : int len = PQgetlength( m_result, i , column -1 );
273 :
274 0 : if( com::sun::star::sdbc::DataType::INTEGER == ret )
275 : {
276 0 : if( ! isInteger( p,len ) )
277 0 : ret = com::sun::star::sdbc::DataType::NUMERIC;
278 : }
279 0 : if( com::sun::star::sdbc::DataType::NUMERIC == ret )
280 : {
281 0 : if( ! isNumber( p,len ) )
282 : {
283 0 : ret = com::sun::star::sdbc::DataType::DATE;
284 : }
285 : }
286 0 : if( com::sun::star::sdbc::DataType::DATE == ret )
287 : {
288 0 : if( ! isDate( p,len ) )
289 : {
290 0 : ret = com::sun::star::sdbc::DataType::TIME;
291 : }
292 : }
293 0 : if( com::sun::star::sdbc::DataType::TIME == ret )
294 : {
295 0 : if( ! isTime( p,len ) )
296 : {
297 0 : ret = com::sun::star::sdbc::DataType::TIMESTAMP;
298 : }
299 : }
300 0 : if( com::sun::star::sdbc::DataType::TIMESTAMP == ret )
301 : {
302 0 : if( ! isTimestamp( p,len ) )
303 : {
304 0 : ret = com::sun::star::sdbc::DataType::LONGVARCHAR;
305 0 : break;
306 : }
307 : }
308 : }
309 : }
310 0 : return ret;
311 : }
312 :
313 : }
314 :
315 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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