Storage/Handler/DBI.pm

#################################
#
#  $Id: DBI.pm,v 1.14 2003/04/09 06:06:04 joko Exp $
#
#  $Log: DBI.pm,v $
#  Revision 1.14  2003/04/09 06:06:04  joko
#  sendQuery now is capable of doing 'SELECT'- or 'INSERT'-queries
#
#  Revision 1.13  2003/04/08 23:06:45  joko
#  renamed core database helper functions
#
#  Revision 1.12  2003/01/30 22:28:21  joko
#  + implemented new concrete methods
#
#  Revision 1.11  2002/12/19 16:31:05  joko
#  + sub dropDb
#  + sub rebuildDb
#
#  Revision 1.10  2002/12/15 02:02:22  joko
#  + fixed logging-message
#
#  Revision 1.9  2002/12/05 07:58:20  joko
#  + now using Tie::SecureHash as a base for the COREHANDLE
#  + former public COREHANDLE becomes private _COREHANDLE now
#
#  Revision 1.8  2002/12/01 22:20:43  joko
#  + sub createDb (from Storage.pm)
#
#  Revision 1.7  2002/12/01 07:09:09  joko
#  + sub getListFiltered (dummy redirecting to getListUnfiltered)
#
#  Revision 1.6  2002/12/01 04:46:01  joko
#  + sub eraseAll
#
#  Revision 1.5  2002/11/29 05:00:26  joko
#  + sub getListUnfiltered
#  + sub sendQuery
#
#  Revision 1.4  2002/11/17 08:46:42  jonen
#  + wrapped eval around DBI->connect to prevent deaths
#
#  Revision 1.3  2002/11/17 06:34:39  joko
#  + locator metadata can now be reached via ->{locator}
#  - sub hash2sql now taken from libdb
#
#  Revision 1.2  2002/10/25 11:43:27  joko
#  + enhanced robustness
#  + more logging for debug-levels
#
#  Revision 1.1  2002/10/10 03:44:07  cvsjoko
#  + new
#
#
#################################

package Data::Storage::Handler::DBI;

use strict;
use warnings;

use base ("Data::Storage::Handler::Abstract");


use DBI;
use Data::Dumper;
use shortcuts::database qw( hash2sql dsn2dbname );
use Data::Storage::Result::DBI;


# get logger instance
my $logger = Log::Dispatch::Config->instance;


sub getMetaInfo {
  my $self = shift;
  $logger->debug( __PACKAGE__ . "->getMetaInfo()"  );
  return {
    'disconnectMethod' => 'disconnect',
  };
}

sub connect {

    my $self = shift;
    
    # create handle
      if ( my $dsn = $self->{locator}->{dbi}->{dsn} ) {
      #if ( my $dsn = $self->{locator}->{dsn} ) {
        $logger->debug( __PACKAGE__ . "->connect( dsn $dsn )" );
        
        # HACK:
        # set errorhandler before actually calling DBI->connect 
        # in order to catch errors from the very beginning
        #DBI->{HandleError} = $self->{dbi}->{HandleError};
        
        #use Data::Dumper; print Dumper($self->{dbi});
        
        eval {
          $self->{_COREHANDLE} = DBI->connect( $dsn, '', '', $self->{locator}->{dbi} );
          if (!$self->{_COREHANDLE}) {
            $logger->warning( __PACKAGE__ . "->connect failed: " . DBI::errstr );
            return;
          }
        };
        $logger->warning( __PACKAGE__ . "->connect failed: " . $@ ) if $@;

      }
      $self->configureCOREHANDLE();

    $self->{locator}->{status}->{connected} = 1;

    return 1;
    
}

sub configureCOREHANDLE {

  my $self = shift;

  $logger->debug( __PACKAGE__ . "->configureCOREHANDLE" );

  return if !$self->{_COREHANDLE};

  # apply configured modifications to DBI-handle
    if (exists $self->{locator}->{dbi}->{trace_level} && exists $self->{locator}->{dbi}->{trace_file}) {
      $self->{_COREHANDLE}->trace($self->{locator}->{dbi}->{trace_level}, $self->{locator}->{dbi}->{trace_file});
    }
    if (exists $self->{locator}->{dbi}->{RaiseError}) {
      $self->{_COREHANDLE}->{RaiseError} = $self->{locator}->{dbi}->{RaiseError};
    }
    if (exists $self->{locator}->{dbi}->{PrintError}) {
      $self->{_COREHANDLE}->{PrintError} = $self->{locator}->{dbi}->{PrintError};
    }
    if (exists $self->{locator}->{dbi}->{HandleError}) {
      $self->{_COREHANDLE}->{HandleError} = $self->{locator}->{dbi}->{HandleError};
    }

}

sub _sendSql {
  my $self = shift;
  my $sql = shift;
  
  # two-level handling for implicit connect:
  # if there's no corehandle ...
  if (!$self->{_COREHANDLE}) {
    # ... try to connect, but ...
    $self->connect();
    # ... if this still fails, there's something wrong probably, so we won't continue
    if (!$self->{_COREHANDLE}) {
      return;
    }
  }
  
  #print "prepare sql: $sql\n";
  
  my $sth = $self->{_COREHANDLE}->prepare($sql);
  $sth->execute();
  return $sth;
}

sub sendCommand {
  my $self = shift;
  my $command = shift;
  # TODO: when tracing: yes, do actually log this
  #$logger->debug( __PACKAGE__ . "->sendCommand( command $command )" );
  my $cmdHandle = $self->_sendSql($command);
  my $result = Data::Storage::Result::DBI->new( RESULTHANDLE => $cmdHandle );
  return $result;
}

sub getChildNodes {
  my $self = shift;
  my @nodes;
  $logger->debug( __PACKAGE__ . "->getChildNodes()" );
  my $locator = $self->{locator};
  #print Dumper($locator); exit;
  if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) {
    my $dbname = dsn2dbname($self->{locator}->{dbi}->{dsn});
    my $key = "Tables_in_$dbname";
    while ( my $row = $result->getNextEntry() ) {
      push @nodes, $row->{$key};
    }
  }
  return \@nodes;
}

sub getListUnfiltered {
  my $self = shift;
  my $nodename = shift;
  my @list;
  $logger->debug( __PACKAGE__ . "->getListUnfiltered( nodename => '" . $nodename . "' )" );
  # get list of rows from rdbms by table name
  my $result = $self->sendCommand("SELECT * FROM $nodename");
  while ( my $row = $result->getNextEntry() ) {
    push @list, $row;
  }
  return \@list;
}

sub sendQuery {
  my $self = shift;
  my $query = shift;

  $logger->debug( __PACKAGE__ . "->sendQuery" );

  my $action = $query->{options}->{action};
  $action ||= 'load';

  if (my $guid = $query->{options}->{GUID}) {
    $query->{criterias} = [ { key => 'guid', op => 'eq', val => $guid } ];
  }

  # check criterias (load & save)
  #my $sql = "SELECT cs FROM $self->{metainfo}->{$descent}->{node} WHERE $self->{metainfo}->{$descent}->{IdentProvider}->{arg}='$self->{entry}->{source}->{ident}';";
  #my $result = $self->{metainfo}->{$descent}->{storage}->sendCommand($sql);
  my @crits;
  foreach (@{$query->{criterias}}) {
    my $op = '';
    $op = '=' if lc $_->{op} eq 'eq';
    push @crits, "$_->{key}$op'$_->{val}'";
  }
  # HACK: this is hardcoded ;(    expand possibilities!
  my $crit = join(' AND ', @crits);
  
  # check subnodes (load)
  my $subnodes = {};
  map { $subnodes->{$_}++ } @{$query->{subnodes}};
  
  # check payload (save)
  #print Dumper($query->{payload});
  #$subnodes ||= $query->{payload};
  
  # dispatch action
  if ($action eq 'load') {
    my $sql = hash2sql($query->{node}, $subnodes, 'SELECT', $crit);
    return $self->sendCommand($sql);
  } elsif ($action eq 'save') {
    my $sql = hash2sql($query->{node}, $query->{payload}, 'UPDATE', $crit);
    $self->sendCommand($sql);
  }

}

sub eraseAll {
  my $self = shift;
  my $classname = shift;
  $logger->debug( __PACKAGE__ . "->eraseAll" );
  my $sql = "DELETE FROM $classname";
  $self->sendCommand($sql);
}

# TODO: actually implement the filtering functionality using $this->sendQuery
sub getListFiltered {
  my $self = shift;
  my $nodename = shift;
  return $self->getListUnfiltered($nodename);
}

# TODO: do this via a parametrized "$self->connect(<connect just to database server - don't select database>)"
sub createDb {
  
  my $self = shift;
  
  # get dsn from Data::Storage::Locator instance
  my $dsn = $self->{locator}->{dbi}->{dsn};

  $logger->debug( __PACKAGE__ .  "->createDb( dsn $dsn )" );

  # remove database setting from dsn-string
  $dsn =~ s/database=(.+?);//;
  
  # remember extracted database name to know what actually to create right now
  my $database_name = $1;

  # flag to indicate goodness
  my $ok;
  
  # connect to database server - don't select/use any specific database
  #if ( my $dbh = DBI->connect($dsn, '', '', { PrintError => 0 } ) ) {
  if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) {

    if ($database_name) {
      if ($dbh->do("CREATE DATABASE $database_name")) {
        $ok = 1;
      }
    }

    $dbh->disconnect();

  }
  
  return $ok;
  
}

sub getCOREHANDLE2 {
  my $self = shift;
  return $self->{_COREHANDLE};
}

sub dropDb {
  my $self = shift;
  my $dsn = $self->{locator}->{dbi}->{dsn};

  $logger->debug( __PACKAGE__ .  "->dropDb( dsn $dsn )" );

  $dsn =~ s/database=(.+?);//;
  my $database_name = $1;

  my $ok;
  
  if ( my $dbh = DBI->connect($dsn, '', '', {
                                                      PrintError => 0,
                                                      } ) ) {
    if ($database_name) {
      if ($dbh->do("DROP DATABASE $database_name;")) {
        $ok = 1;
      }
    }

    $dbh->disconnect();

  }
  
  return $ok;
}

sub rebuildDb {
  my $self = shift;
  $logger->info( __PACKAGE__ . "->rebuildDb()" );
  my @results;

  # sum up results (bool (0/1)) in array
  #push @results, $self->retreatSchema();
  push @results, $self->dropDb();
  push @results, $self->createDb();
  #push @results, $self->deploySchema();

  # scan array for "bad ones"
  my $res = 1;
  map {
    $res = 0 if (!$_);
  } @results;
  
  return $res;
}

sub testAvailability {
  my $self = shift;
  my $status = $self->testDsn();
  $self->{locator}->{status}->{available} = $status;
  return $status;
}

sub testDsn {
  my $self = shift;
  my $dsn = $self->{locator}->{dbi}->{dsn};
  my $result;
  if ( my $dbh = DBI->connect($dsn, '', '', {
                                                      PrintError => 0,
                                                      } ) ) {
    
    # TODO: REVIEW
    $dbh->disconnect();
    
    return 1;
  } else {
    $logger->warning( __PACKAGE__ .  "[$self->{locator}->{type}]" . "->testDsn(): " . "DBI-error: " . $DBI::errstr );
  }
}

1;
__END__
1	cvsjoko	1.1	#################################
2			#
3	joko	1.15	# $Id: DBI.pm,v 1.14 2003/04/09 06:06:04 joko Exp $
4	joko	1.2	#
5			# $Log: DBI.pm,v $
6	joko	1.15	# Revision 1.14 2003/04/09 06:06:04 joko
7			# sendQuery now is capable of doing 'SELECT'- or 'INSERT'-queries
8			#
9	joko	1.14	# Revision 1.13 2003/04/08 23:06:45 joko
10			# renamed core database helper functions
11			#
12	joko	1.13	# Revision 1.12 2003/01/30 22:28:21 joko
13			# + implemented new concrete methods
14			#
15	joko	1.12	# Revision 1.11 2002/12/19 16:31:05 joko
16			# + sub dropDb
17			# + sub rebuildDb
18			#
19	joko	1.11	# Revision 1.10 2002/12/15 02:02:22 joko
20			# + fixed logging-message
21			#
22	joko	1.10	# Revision 1.9 2002/12/05 07:58:20 joko
23			# + now using Tie::SecureHash as a base for the COREHANDLE
24			# + former public COREHANDLE becomes private _COREHANDLE now
25			#
26	joko	1.9	# Revision 1.8 2002/12/01 22:20:43 joko
27			# + sub createDb (from Storage.pm)
28			#
29	joko	1.8	# Revision 1.7 2002/12/01 07:09:09 joko
30			# + sub getListFiltered (dummy redirecting to getListUnfiltered)
31			#
32	joko	1.7	# Revision 1.6 2002/12/01 04:46:01 joko
33			# + sub eraseAll
34			#
35	joko	1.6	# Revision 1.5 2002/11/29 05:00:26 joko
36			# + sub getListUnfiltered
37			# + sub sendQuery
38			#
39	joko	1.5	# Revision 1.4 2002/11/17 08:46:42 jonen
40			# + wrapped eval around DBI->connect to prevent deaths
41			#
42	jonen	1.4	# Revision 1.3 2002/11/17 06:34:39 joko
43			# + locator metadata can now be reached via ->{locator}
44			# - sub hash2sql now taken from libdb
45			#
46	joko	1.3	# Revision 1.2 2002/10/25 11:43:27 joko
47			# + enhanced robustness
48			# + more logging for debug-levels
49			#
50	joko	1.2	# Revision 1.1 2002/10/10 03:44:07 cvsjoko
51			# + new
52	cvsjoko	1.1	#
53			#
54			#################################
55
56			package Data::Storage::Handler::DBI;
57
58			use strict;
59			use warnings;
60
61			use base ("Data::Storage::Handler::Abstract");
62
63	joko	1.13
64	cvsjoko	1.1	use DBI;
65	joko	1.3	use Data::Dumper;
66	joko	1.15	use shortcuts::database qw( hash2sql dsn2dbname );
67	joko	1.5	use Data::Storage::Result::DBI;
68	cvsjoko	1.1
69	joko	1.13
70	cvsjoko	1.1	# get logger instance
71			my $logger = Log::Dispatch::Config->instance;
72
73
74	joko	1.5	sub getMetaInfo {
75			my $self = shift;
76			$logger->debug( __PACKAGE__ . "->getMetaInfo()" );
77			return {
78			'disconnectMethod' => 'disconnect',
79			};
80			}
81	cvsjoko	1.1
82			sub connect {
83
84			my $self = shift;
85
86			# create handle
87	joko	1.3	if ( my $dsn = $self->{locator}->{dbi}->{dsn} ) {
88			#if ( my $dsn = $self->{locator}->{dsn} ) {
89	joko	1.2	$logger->debug( __PACKAGE__ . "->connect( dsn $dsn )" );
90
91			# HACK:
92			# set errorhandler before actually calling DBI->connect
93			# in order to catch errors from the very beginning
94			#DBI->{HandleError} = $self->{dbi}->{HandleError};
95
96			#use Data::Dumper; print Dumper($self->{dbi});
97
98	jonen	1.4	eval {
99	joko	1.9	$self->{_COREHANDLE} = DBI->connect( $dsn, '', '', $self->{locator}->{dbi} );
100			if (!$self->{_COREHANDLE}) {
101	jonen	1.4	$logger->warning( __PACKAGE__ . "->connect failed: " . DBI::errstr );
102			return;
103			}
104			};
105			$logger->warning( __PACKAGE__ . "->connect failed: " . $@ ) if $@;
106
107	cvsjoko	1.1	}
108			$self->configureCOREHANDLE();
109	joko	1.3
110			$self->{locator}->{status}->{connected} = 1;
111
112	joko	1.2	return 1;
113
114	cvsjoko	1.1	}
115
116			sub configureCOREHANDLE {
117
118			my $self = shift;
119
120	joko	1.3	$logger->debug( __PACKAGE__ . "->configureCOREHANDLE" );
121	cvsjoko	1.1
122	joko	1.9	return if !$self->{_COREHANDLE};
123	joko	1.8
124	joko	1.5	# apply configured modifications to DBI-handle
125	joko	1.3	if (exists $self->{locator}->{dbi}->{trace_level} && exists $self->{locator}->{dbi}->{trace_file}) {
126	joko	1.9	$self->{_COREHANDLE}->trace($self->{locator}->{dbi}->{trace_level}, $self->{locator}->{dbi}->{trace_file});
127	cvsjoko	1.1	}
128	joko	1.3	if (exists $self->{locator}->{dbi}->{RaiseError}) {
129	joko	1.9	$self->{_COREHANDLE}->{RaiseError} = $self->{locator}->{dbi}->{RaiseError};
130	cvsjoko	1.1	}
131	joko	1.3	if (exists $self->{locator}->{dbi}->{PrintError}) {
132	joko	1.9	$self->{_COREHANDLE}->{PrintError} = $self->{locator}->{dbi}->{PrintError};
133	cvsjoko	1.1	}
134	joko	1.3	if (exists $self->{locator}->{dbi}->{HandleError}) {
135	joko	1.9	$self->{_COREHANDLE}->{HandleError} = $self->{locator}->{dbi}->{HandleError};
136	cvsjoko	1.1	}
137
138			}
139
140			sub _sendSql {
141			my $self = shift;
142			my $sql = shift;
143	joko	1.2
144			# two-level handling for implicit connect:
145			# if there's no corehandle ...
146	joko	1.9	if (!$self->{_COREHANDLE}) {
147	joko	1.2	# ... try to connect, but ...
148			$self->connect();
149			# ... if this still fails, there's something wrong probably, so we won't continue
150	joko	1.9	if (!$self->{_COREHANDLE}) {
151	joko	1.2	return;
152			}
153			}
154
155	joko	1.3	#print "prepare sql: $sql\n";
156
157	joko	1.9	my $sth = $self->{_COREHANDLE}->prepare($sql);
158	cvsjoko	1.1	$sth->execute();
159			return $sth;
160			}
161
162			sub sendCommand {
163			my $self = shift;
164			my $command = shift;
165	joko	1.5	# TODO: when tracing: yes, do actually log this
166	joko	1.2	#$logger->debug( __PACKAGE__ . "->sendCommand( command $command )" );
167	cvsjoko	1.1	my $cmdHandle = $self->_sendSql($command);
168			my $result = Data::Storage::Result::DBI->new( RESULTHANDLE => $cmdHandle );
169			return $result;
170			}
171
172			sub getChildNodes {
173			my $self = shift;
174			my @nodes;
175	joko	1.3	$logger->debug( __PACKAGE__ . "->getChildNodes()" );
176	joko	1.9	my $locator = $self->{locator};
177			#print Dumper($locator); exit;
178	cvsjoko	1.1	if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) {
179	joko	1.13	my $dbname = dsn2dbname($self->{locator}->{dbi}->{dsn});
180	joko	1.3	my $key = "Tables_in_$dbname";
181	joko	1.5	while ( my $row = $result->getNextEntry() ) {
182	joko	1.3	push @nodes, $row->{$key};
183	cvsjoko	1.1	}
184			}
185			return \@nodes;
186			}
187
188	joko	1.5	sub getListUnfiltered {
189	cvsjoko	1.1	my $self = shift;
190	joko	1.5	my $nodename = shift;
191			my @list;
192			$logger->debug( __PACKAGE__ . "->getListUnfiltered( nodename => '" . $nodename . "' )" );
193			# get list of rows from rdbms by table name
194			my $result = $self->sendCommand("SELECT * FROM $nodename");
195			while ( my $row = $result->getNextEntry() ) {
196			push @list, $row;
197			}
198			return \@list;
199	cvsjoko	1.1	}
200
201	joko	1.5	sub sendQuery {
202	cvsjoko	1.1	my $self = shift;
203	joko	1.5	my $query = shift;
204	joko	1.10
205			$logger->debug( __PACKAGE__ . "->sendQuery" );
206
207	joko	1.14	my $action = $query->{options}->{action};
208			$action \|\|= 'load';
209
210			if (my $guid = $query->{options}->{GUID}) {
211			$query->{criterias} = [ { key => 'guid', op => 'eq', val => $guid } ];
212			}
213
214			# check criterias (load & save)
215	joko	1.5	#my $sql = "SELECT cs FROM $self->{metainfo}->{$descent}->{node} WHERE $self->{metainfo}->{$descent}->{IdentProvider}->{arg}='$self->{entry}->{source}->{ident}';";
216			#my $result = $self->{metainfo}->{$descent}->{storage}->sendCommand($sql);
217			my @crits;
218			foreach (@{$query->{criterias}}) {
219			my $op = '';
220			$op = '=' if lc $_->{op} eq 'eq';
221			push @crits, "$_->{key}$op'$_->{val}'";
222			}
223	joko	1.14	# HACK: this is hardcoded ;( expand possibilities!
224			my $crit = join(' AND ', @crits);
225
226			# check subnodes (load)
227	joko	1.5	my $subnodes = {};
228			map { $subnodes->{$_}++ } @{$query->{subnodes}};
229	joko	1.14
230			# check payload (save)
231			#print Dumper($query->{payload});
232			#$subnodes \|\|= $query->{payload};
233
234			# dispatch action
235			if ($action eq 'load') {
236			my $sql = hash2sql($query->{node}, $subnodes, 'SELECT', $crit);
237			return $self->sendCommand($sql);
238			} elsif ($action eq 'save') {
239			my $sql = hash2sql($query->{node}, $query->{payload}, 'UPDATE', $crit);
240			$self->sendCommand($sql);
241			}
242
243	joko	1.6	}
244
245			sub eraseAll {
246			my $self = shift;
247			my $classname = shift;
248	joko	1.10	$logger->debug( __PACKAGE__ . "->eraseAll" );
249	joko	1.6	my $sql = "DELETE FROM $classname";
250			$self->sendCommand($sql);
251	joko	1.7	}
252
253			# TODO: actually implement the filtering functionality using $this->sendQuery
254			sub getListFiltered {
255			my $self = shift;
256			my $nodename = shift;
257			return $self->getListUnfiltered($nodename);
258	joko	1.8	}
259
260			# TODO: do this via a parametrized "$self->connect(<connect just to database server - don't select database>)"
261			sub createDb {
262
263			my $self = shift;
264
265			# get dsn from Data::Storage::Locator instance
266			my $dsn = $self->{locator}->{dbi}->{dsn};
267
268			$logger->debug( __PACKAGE__ . "->createDb( dsn $dsn )" );
269
270			# remove database setting from dsn-string
271			$dsn =~ s/database=(.+?);//;
272
273			# remember extracted database name to know what actually to create right now
274			my $database_name = $1;
275
276			# flag to indicate goodness
277			my $ok;
278
279			# connect to database server - don't select/use any specific database
280			#if ( my $dbh = DBI->connect($dsn, '', '', { PrintError => 0 } ) ) {
281			if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) {
282
283			if ($database_name) {
284			if ($dbh->do("CREATE DATABASE $database_name")) {
285			$ok = 1;
286			}
287			}
288
289			$dbh->disconnect();
290
291			}
292
293			return $ok;
294
295	joko	1.9	}
296
297			sub getCOREHANDLE2 {
298			my $self = shift;
299			return $self->{_COREHANDLE};
300	joko	1.11	}
301
302			sub dropDb {
303			my $self = shift;
304			my $dsn = $self->{locator}->{dbi}->{dsn};
305
306			$logger->debug( __PACKAGE__ . "->dropDb( dsn $dsn )" );
307
308			$dsn =~ s/database=(.+?);//;
309			my $database_name = $1;
310
311			my $ok;
312
313			if ( my $dbh = DBI->connect($dsn, '', '', {
314			PrintError => 0,
315			} ) ) {
316			if ($database_name) {
317			if ($dbh->do("DROP DATABASE $database_name;")) {
318			$ok = 1;
319			}
320			}
321
322			$dbh->disconnect();
323
324			}
325
326			return $ok;
327			}
328
329			sub rebuildDb {
330			my $self = shift;
331			$logger->info( __PACKAGE__ . "->rebuildDb()" );
332			my @results;
333
334			# sum up results (bool (0/1)) in array
335			#push @results, $self->retreatSchema();
336			push @results, $self->dropDb();
337			push @results, $self->createDb();
338			#push @results, $self->deploySchema();
339
340			# scan array for "bad ones"
341			my $res = 1;
342			map {
343			$res = 0 if (!$_);
344			} @results;
345
346			return $res;
347	cvsjoko	1.1	}
348
349	joko	1.12	sub testAvailability {
350			my $self = shift;
351			my $status = $self->testDsn();
352			$self->{locator}->{status}->{available} = $status;
353			return $status;
354			}
355
356			sub testDsn {
357			my $self = shift;
358			my $dsn = $self->{locator}->{dbi}->{dsn};
359			my $result;
360			if ( my $dbh = DBI->connect($dsn, '', '', {
361			PrintError => 0,
362			} ) ) {
363
364			# TODO: REVIEW
365			$dbh->disconnect();
366
367			return 1;
368			} else {
369			$logger->warning( __PACKAGE__ . "[$self->{locator}->{type}]" . "->testDsn(): " . "DBI-error: " . $DBI::errstr );
370			}
371			}
372
373	jonen	1.4	1;
374	joko	1.12	__END__
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