1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 *  Effective License of whole file:
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 *  Parts "Copyright by Sun Microsystems, Inc" prior to August 2011:
 *
 *    The Contents of this file are made available subject to the terms of
 *    the GNU Lesser General Public License Version 2.1
 *
 *    Copyright: 2000 by Sun Microsystems, Inc.
 *
 *    Contributor(s): Joerg Budischewski
 *
 *  All parts contributed on or after August 2011:
 *
 *    This Source Code Form is subject to the terms of the Mozilla Public
 *    License, v. 2.0. If a copy of the MPL was not distributed with this
 *    file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 ************************************************************************/

#include <rtl/ustrbuf.hxx>
#include <sal/log.hxx>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
#include <com/sun/star/sdbc/SQLException.hpp>
#include <com/sun/star/sdbc/XRow.hpp>
#include <com/sun/star/sdbc/ColumnValue.hpp>

#include <cppuhelper/exc_hlp.hxx>

#include "pq_xcolumns.hxx"
#include "pq_xcolumn.hxx"
#include "pq_statics.hxx"
#include "pq_tools.hxx"

using osl::MutexGuard;


using com::sun::star::beans::XPropertySet;

using com::sun::star::uno::Any;
using com::sun::star::uno::makeAny;
using com::sun::star::uno::UNO_QUERY;
using com::sun::star::uno::Reference;
using com::sun::star::uno::RuntimeException;

using com::sun::star::sdbc::XRow;
using com::sun::star::sdbc::XStatement;
using com::sun::star::sdbc::XResultSet;
using com::sun::star::sdbc::XDatabaseMetaData;
using com::sun::star::sdbc::SQLException;

namespace pq_sdbc_driver
{

static Any isCurrency( const OUString & typeName )
{
    return Any( typeName.equalsIgnoreAsciiCase("money") );
}

// static sal_Bool isAutoIncrement8( const OUString & typeName )
// {
//     return typeName.equalsIgnoreAsciiCase("serial8") ||
//         typeName.equalsIgnoreAsciiCase("bigserial");
// }

static Any isAutoIncrement( const OUString & defaultValue )
{
    bool ret = defaultValue.startsWith( "nextval(" );
//     printf( "%s %d\n",
//             OUStringToOString(defaultValue, RTL_TEXTENCODING_ASCII_US).getStr(),
//             ret );
//     {
//     static const char  * const serials[] =
//         {
//             "serial", "serial4", "serial8", "bigserial", 0
//         };
// s    sal_Bool b = sal_False;
//     for( int i = 0; !b && serials[i] ; i ++ )
//     {
//         b = b || typeName.equalsIgnoreAsciiCaseAscii( serials[i] );
//     }
    return Any ( ret );
}

Columns::Columns(
        const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
        const css::uno::Reference< css::sdbc::XConnection >  & origin,
        ConnectionSettings *pSettings,
        const OUString &schemaName,
        const OUString &tableName)
    : Container( refMutex, origin, pSettings,  "COLUMN" ),
      m_schemaName( schemaName ),
      m_tableName( tableName )
{}

Columns::~Columns()
{}

OUString columnMetaData2SDBCX(
    ReflectionBase *pBase, const css::uno::Reference< css::sdbc::XRow > &xRow )
{
    Statics & st = getStatics();<--- Variable 'st' can be declared with const

    //  1. TABLE_CAT string => table catalog (may be NULL)
    //               => not supported
    //  2. TABLE_SCHEM string => table schema (may be NULL)
    //               => pg_namespace.nspname
    //  3. TABLE_NAME string => table name
    //               => pg_class.relname
    //  4. COLUMN_NAME string => column name
    //               => pg_attribute.attname
    //  5. DATA_TYPE short => SQL type from java.sql.Types
    //               => pg_type.typname => sdbc.DataType
    //  6. TYPE_NAME string => Data source dependent type name, for a UDT the
    //                         type name is fully qualified
    //               => pg_type.typname
    //  7. COLUMN_SIZE long => column size. For char or date types this is
    //                         the maximum number of characters, for numeric
    //                         or decimal types this is precision.
    //               => pg_type.typlen ( TODO: What is about variable size ? )
    //  8. BUFFER_LENGTH is not used.
    //               => not used
    //  9. DECIMAL_DIGITS long => the number of fractional digits
    //               => don't know ! TODO !
    //  10. NUM_PREC_RADIX long => Radix (typically either 10 or 2)
    //               => TODO ??
    //  11. NULLABLE long => is NULL allowed?
    //                      NO_NULLS - might not allow NULL values
    //                      NULABLE - definitely allows NULL values
    //                      NULLABLE_UNKNOWN - nullability unknown
    //               => pg_attribute.attnotnull
    //  12. REMARKS string => comment describing column (may be NULL )
    //               => Don't know, there does not seem to exist something like
    //                  that in postgres
    //  13. COLUMN_DEF string => default value (may be NULL)
    //               => pg_type.typdefault
    //  14. SQL_DATA_TYPE long => unused
    //               => empty
    //  15. SQL_DATETIME_SUB long => unused
    //               => empty
    //  16. CHAR_OCTET_LENGTH long => for char types the maximum number of
    //                                bytes in the column
    //               => pg_type.typlen
    //  17. ORDINAL_POSITION int => index of column in table (starting at 1)
    //                              pg_attribute.attnum
    //  18. IS_NULLABLE string => "NO" means column definitely does not allow
    //                            NULL values; "YES" means the column might
    //                            allow NULL values. An empty string means
    //                            nobody knows.
    //               => pg_attribute.attnotnull

    static const int COLUMN_NAME = 4;
    static const int DATA_TYPE = 5;
    static const int TYPE_NAME = 6;
    static const int COLUMN_SIZE = 7;
    static const int DECIMAL_DIGITS = 9;
    static const int IS_NULLABLE = 11;
    static const int DESCRIPTION = 12;
    static const int DEFAULT_VALUE = 13;

    OUString name = xRow->getString( COLUMN_NAME );
    OUString typeName  = xRow->getString( TYPE_NAME );

    pBase->setPropertyValue_NoBroadcast_public(
        st.NAME, makeAny( name ) );

    pBase->setPropertyValue_NoBroadcast_public(
        st.TYPE, makeAny( xRow->getInt( DATA_TYPE ) ) );

    pBase->setPropertyValue_NoBroadcast_public(
        st.TYPE_NAME, makeAny( typeName ) );

    pBase->setPropertyValue_NoBroadcast_public(
        st.PRECISION, makeAny( xRow->getInt( COLUMN_SIZE ) ) );

    pBase->setPropertyValue_NoBroadcast_public(
        st.SCALE, makeAny( xRow->getInt( DECIMAL_DIGITS ) ) );

    pBase->setPropertyValue_NoBroadcast_public(
        st.IS_NULLABLE, makeAny( xRow->getInt( IS_NULLABLE ) ) );

    pBase->setPropertyValue_NoBroadcast_public(
        st.DEFAULT_VALUE, makeAny( xRow->getString( DEFAULT_VALUE ) ) );

//     pBase->setPropertyValue_NoBroadcast_public(
//         st.DESCRIPTION, makeAny( xRow->getString( DESCRIPTION ) ) );

//     if( pBase->getPropertySetInfo()->hasPropertyByName( st.HELP_TEXT ) )
//         pBase->setPropertyValue_NoBroadcast_public(
//             st.HELP_TEXT, makeAny( xRow->getString( DESCRIPTION ) ) );
//     else // for key columns, etc. ...
    pBase->setPropertyValue_NoBroadcast_public(
            st.DESCRIPTION, makeAny( xRow->getString( DESCRIPTION ) ) );


    // maybe a better criterion than the type name can be found in future
    pBase->setPropertyValue_NoBroadcast_public(
        st.IS_AUTO_INCREMENT, isAutoIncrement(xRow->getString( DEFAULT_VALUE )) );

    pBase->setPropertyValue_NoBroadcast_public(
        st.IS_CURRENCY, isCurrency( typeName));
    return name;
}


// class CommentChanger : public cppu::WeakImplHelper< XPropertyChangeListener >
// {
//     ::rtl::Reference< comphelper::RefCountedMutex > m_xMutex;
//     css::uno::Reference< css::sdbc::XConnection > m_connection;
//     ConnectionSettings *m_pSettings;
//     OUString m_schema;
//     OUString m_table;
//     OUString m_column;

// public:
//     CommentChanger(
//         const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
//         const css::uno::Reference< css::sdbc::XConnection > & connection,
//         ConnectionSettings *pSettings,
//         const OUString & schema,
//         const OUString & table,
//         const OUString & column ) :
//         m_xMutex( refMutex ),
//         m_connection( connection ),
//         m_pSettings( pSettings ),
//         m_schema ( schema ),
//         m_table ( table ),
//         m_column ( column )
//     {}


//     // Methods
//     virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) throw (css::uno::RuntimeException)
//     {
//         osl::MutexGuard guard( m_xMutex->GetMutex() );
//         m_connection.clear();
//     }
//         // Methods
//     virtual void SAL_CALL propertyChange( const css::beans::PropertyChangeEvent& evt ) throw (css::uno::RuntimeException)
//     {
//         osl::MutexGuard guard( m_xMutex->GetMutex() );
//         OUStringBuffer buf( 128 );
//         OUString comment;
//         evt.NewValue >>= comment;
//         buf.append( "COMMENT ON COLUMN" );
//         bufferQuoteQualifiedIdentifier( buf, m_schema, m_table , m_column );
//         buf.append( "IS " );
//         bufferQuoteConstant( buf, comment,m_pSettings->encoding);

//         printf( "changing comment of column %s to %s\n",
//                 OUStringToOString( m_column, RTL_TEXTENCODING_ASCII_US ).getStr(),
//                 OUStringToOString( comment, RTL_TEXTENCODING_ASCII_US ).getStr() );

//         m_connection->createStatement()->executeUpdate( buf.makeStringAndClear() );
//     }
// };

void Columns::refresh()
{
    try
    {
        SAL_INFO("connectivity.postgresql", "sdbcx.Columns get refreshed for table " << m_schemaName << "." << m_tableName);
        osl::MutexGuard guard( m_xMutex->GetMutex() );

        Statics &st = getStatics();
        Reference< XDatabaseMetaData > meta = m_origin->getMetaData();

        Reference< XResultSet > rs =
            meta->getColumns( Any(), m_schemaName, m_tableName, st.cPERCENT );

        DisposeGuard disposeIt( rs );
        Reference< XRow > xRow( rs , UNO_QUERY );

        String2IntMap map;

        m_values.clear();
        int columnIndex = 0;
        while( rs->next() )
        {
            Column * pColumn =
                new Column( m_xMutex, m_origin, m_pSettings );
            Reference< css::beans::XPropertySet > prop = pColumn;

            OUString name = columnMetaData2SDBCX( pColumn, xRow );
//             pColumn->addPropertyChangeListener(
//                 st.HELP_TEXT,
//                 new CommentChanger(
//                     m_xMutex,
//                     m_origin,
//                     m_pSettings,
//                     m_schemaName,
//                     m_tableName,
//                     name ) );

            {
                m_values.push_back( makeAny( prop ) );
                map[ name ] = columnIndex;
                ++columnIndex;
            }
        }
        m_name2index.swap( map );
    }
    catch ( css::sdbc::SQLException & e )
    {
        css::uno::Any anyEx = cppu::getCaughtException();
        throw css::lang::WrappedTargetRuntimeException( e.Message,
                        nullptr, anyEx );
    }
    fire( RefreshedBroadcaster( *this ) );
}


void alterColumnByDescriptor(
    const OUString & schemaName,
    const OUString & tableName,
    ConnectionSettings *settings,
    const Reference< XStatement > &stmt,
    const css::uno::Reference< css::beans::XPropertySet > & past,
    const css::uno::Reference< css::beans::XPropertySet > & future)
{
    Statics & st  = getStatics();<--- Variable 'st' can be declared with const

//     if( past->getPropertyValue( st.TABLE_NAME ) != future->getPropertyValue( st.TABLE_NAME ) ||
//         past->getPropertyValue( st.SCHEMA_NAME ) != future->getPropertyValue( st.SCHEMA_NAME ))
//     {
//         OUStringBuffer buf(128);
//         buf.append( "Can't move column " );
//         buf.append( extractStringProperty( past, st.COLUMN_NAME ) );
//         buf.append( " from table " );
//         buf.append( extractStringProperty( past, st.TABLE_NAME ) );
//         buf.append( " to table " );
//         buf.append( extractStringProperty( past, st.TABLE_NAME ) );
//         throw SQLException( buf.makeStringAndClear() );
//     }

//     OUString tableName = extractStringProperty( past, st.TABLE_NAME );
//     OUString schemaName = extractStringProperty( past, st.SCHEMA_NAME );
    OUString pastColumnName = extractStringProperty( past, st.NAME );
    OUString futureColumnName = extractStringProperty( future, st.NAME );
    OUString pastTypeName = sqltype2string( past );
    OUString futureTypeName = sqltype2string( future );

    TransactionGuard transaction( stmt );

    OUStringBuffer buf( 128 );
    if( ! pastColumnName.getLength())
    {
        // create a new column
        buf.append( "ALTER TABLE" );
        bufferQuoteQualifiedIdentifier( buf, schemaName, tableName, settings );
        buf.append( "ADD COLUMN" );
        bufferQuoteIdentifier( buf, futureColumnName, settings );
        buf.append( futureTypeName );
        transaction.executeUpdate( buf.makeStringAndClear() );
    }
    else
    {
        if( pastTypeName != futureTypeName )
        {
            throw RuntimeException(
                "Can't modify column types, drop the column and create a new one" );
        }

        if( pastColumnName != futureColumnName )
        {
            buf.append( "ALTER TABLE" );
            bufferQuoteQualifiedIdentifier( buf, schemaName, tableName, settings );
            buf.append( "RENAME COLUMN" );
            bufferQuoteIdentifier( buf, pastColumnName, settings );
            buf.append( "TO" );
            bufferQuoteIdentifier( buf, futureColumnName, settings );
            transaction.executeUpdate( buf.makeStringAndClear() );
        }
    }

    OUString futureDefaultValue = extractStringProperty( future, st.DEFAULT_VALUE );
    OUString pastDefaultValue = extractStringProperty( past, st.DEFAULT_VALUE );
    if( futureDefaultValue != pastDefaultValue )
    {
        buf.truncate();
        buf.append( "ALTER TABLE" );
        bufferQuoteQualifiedIdentifier( buf, schemaName, tableName, settings );
        buf.append( "ALTER COLUMN" );
        bufferQuoteIdentifier( buf, futureColumnName, settings );
        buf.append( "SET DEFAULT " );
        // LEM TODO: check out
        // default value is not quoted, caller needs to quote himself (otherwise
        // how to pass e.g. nextval('something' ) ????
        buf.append( futureDefaultValue );
//        bufferQuoteConstant( buf, defaultValue, encoding );
        transaction.executeUpdate( buf.makeStringAndClear() );
    }

    sal_Int32 futureNullable = extractIntProperty( future, st.IS_NULLABLE );
    sal_Int32 pastNullable = extractIntProperty( past, st.IS_NULLABLE );
    if( futureNullable != pastNullable )
    {
        buf.truncate();
        buf.append( "ALTER TABLE" );
        bufferQuoteQualifiedIdentifier( buf, schemaName, tableName, settings );
        buf.append( "ALTER COLUMN" );
        bufferQuoteIdentifier( buf, futureColumnName, settings );
        if( futureNullable == css::sdbc::ColumnValue::NO_NULLS )
        {
            buf.append( "SET" );
        }
        else
        {
            buf.append( "DROP" );
        }
        buf.append( " NOT NULL" );
        transaction.executeUpdate( buf.makeStringAndClear() );
    }

//     OUString futureComment = extractStringProperty( future, st.HELP_TEXT );
//     OUString pastComment = extractStringProperty( past, st.HELP_TEXT );
//     printf( "past Comment %s, futureComment %s\n",
//             OUStringToOString( pastComment, RTL_TEXTENCODING_ASCII_US ).getStr(),
//             OUStringToOString( futureComment, RTL_TEXTENCODING_ASCII_US ).getStr() );
    OUString futureComment = extractStringProperty( future, st.DESCRIPTION );
    OUString pastComment = extractStringProperty( past, st.DESCRIPTION );

    if( futureComment != pastComment )
    {
        buf.truncate();
        buf.append( "COMMENT ON COLUMN" );
        bufferQuoteQualifiedIdentifier( buf, schemaName, tableName , futureColumnName, settings );
        buf.append( "IS " );
        bufferQuoteConstant( buf, futureComment, settings );
        transaction.executeUpdate( buf.makeStringAndClear() );
    }
    transaction.commit();
}

void Columns::appendByDescriptor(
    const css::uno::Reference< css::beans::XPropertySet >& future )
{
    osl::MutexGuard guard( m_xMutex->GetMutex() );
    Statics & st = getStatics();
    Reference< XPropertySet > past = createDataDescriptor();
    past->setPropertyValue( st.IS_NULLABLE, makeAny( css::sdbc::ColumnValue::NULLABLE ) );
    alterColumnByDescriptor(
        m_schemaName, m_tableName, m_pSettings, m_origin->createStatement() , past, future  );

    refresh();
}

// void Columns::dropByName( const OUString& elementName )
//     throw (css::sdbc::SQLException,
//            css::container::NoSuchElementException,
//            css::uno::RuntimeException)
// {
//     String2IntMap::const_iterator ii = m_name2index.find( elementName );
//     if( ii == m_name2index.end() )
//     {
//         OUStringBuffer buf( 128 );
//         buf.appendAscii( "Column " );
//         buf.append( elementName );
//         buf.appendAscii( " is unknown in table " );
//         buf.append( m_schemaName );
//         buf.appendAscii( "." );
//         buf.append( m_tableName );
//         buf.appendAscii( ", so it can't be dropped" );
//         throw css::container::NoSuchElementException(
//             buf.makeStringAndClear(), *this );
//     }
//     dropByIndex( ii->second );
// }

void Columns::dropByIndex( sal_Int32 index )
{
    osl::MutexGuard guard( m_xMutex->GetMutex() );
    if( index < 0 ||  index >= static_cast<sal_Int32>(m_values.size()) )
    {
        throw css::lang::IndexOutOfBoundsException(
            "COLUMNS: Index out of range (allowed 0 to "
            + OUString::number(m_values.size() -1)
            + ", got " + OUString::number( index ) + ")",
            *this );
    }

    Reference< XPropertySet > set;
    m_values[index] >>= set;
    Statics &st = getStatics();
    OUString name;
    set->getPropertyValue( st.NAME ) >>= name;

    OUStringBuffer update( 128 );
    update.append( "ALTER TABLE ONLY");
    bufferQuoteQualifiedIdentifier( update, m_schemaName, m_tableName, m_pSettings );
    update.append( "DROP COLUMN" );
    bufferQuoteIdentifier( update, name, m_pSettings );
    Reference< XStatement > stmt = m_origin->createStatement( );
    DisposeGuard disposeIt( stmt );
    stmt->executeUpdate( update.makeStringAndClear() );

    Container::dropByIndex( index );
}


css::uno::Reference< css::beans::XPropertySet > Columns::createDataDescriptor()
{
    return new ColumnDescriptor( m_xMutex, m_origin, m_pSettings );
}

Reference< css::container::XNameAccess > Columns::create(
    const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
    const css::uno::Reference< css::sdbc::XConnection >  & origin,
    ConnectionSettings *pSettings,
    const OUString &schemaName,
    const OUString &tableName,
    Columns **ppColumns)
{
    *ppColumns = new Columns(
        refMutex, origin, pSettings, schemaName, tableName );
    Reference< css::container::XNameAccess > ret = *ppColumns;
    (*ppColumns)->refresh();

    return ret;
}


ColumnDescriptors::ColumnDescriptors(
        const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
        const css::uno::Reference< css::sdbc::XConnection >  & origin,
        ConnectionSettings *pSettings )
    : Container( refMutex, origin, pSettings,  "COLUMN-DESCRIPTOR" )
{}


Reference< css::beans::XPropertySet > ColumnDescriptors::createDataDescriptor()
{
    return new ColumnDescriptor( m_xMutex, m_origin, m_pSettings );
}

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */