3 |
# $Id$ |
# $Id$ |
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# |
# |
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# $Log$ |
# $Log$ |
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|
# Revision 1.17 2004/06/19 01:49:47 joko |
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# (re-)activated "getCOREHANDLE" |
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# |
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# Revision 1.16 2003/04/11 01:17:18 joko |
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# sendQuery: |
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# + introduced crud action 'DELETE' |
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# + some pre-flight checks |
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# |
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# Revision 1.15 2003/04/09 07:53:33 joko |
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# minor namespace update |
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# |
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# Revision 1.14 2003/04/09 06:06:04 joko |
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# sendQuery now is capable of doing 'SELECT'- or 'INSERT'-queries |
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# |
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# Revision 1.13 2003/04/08 23:06:45 joko |
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# renamed core database helper functions |
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# |
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# Revision 1.12 2003/01/30 22:28:21 joko |
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# + implemented new concrete methods |
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# |
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# Revision 1.11 2002/12/19 16:31:05 joko |
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# + sub dropDb |
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# + sub rebuildDb |
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# |
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# Revision 1.10 2002/12/15 02:02:22 joko |
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# + fixed logging-message |
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# |
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# Revision 1.9 2002/12/05 07:58:20 joko |
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# + now using Tie::SecureHash as a base for the COREHANDLE |
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# + former public COREHANDLE becomes private _COREHANDLE now |
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# |
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# Revision 1.8 2002/12/01 22:20:43 joko |
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# + sub createDb (from Storage.pm) |
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# |
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# Revision 1.7 2002/12/01 07:09:09 joko |
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# + sub getListFiltered (dummy redirecting to getListUnfiltered) |
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# |
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# Revision 1.6 2002/12/01 04:46:01 joko |
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# + sub eraseAll |
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# |
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# Revision 1.5 2002/11/29 05:00:26 joko |
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# + sub getListUnfiltered |
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# + sub sendQuery |
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# |
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# Revision 1.4 2002/11/17 08:46:42 jonen |
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# + wrapped eval around DBI->connect to prevent deaths |
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# |
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# Revision 1.3 2002/11/17 06:34:39 joko |
# Revision 1.3 2002/11/17 06:34:39 joko |
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# + locator metadata can now be reached via ->{locator} |
# + locator metadata can now be reached via ->{locator} |
55 |
# - sub hash2sql now taken from libdb |
# - sub hash2sql now taken from libdb |
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|
72 |
use base ("Data::Storage::Handler::Abstract"); |
use base ("Data::Storage::Handler::Abstract"); |
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|
74 |
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|
75 |
use DBI; |
use DBI; |
76 |
use Data::Dumper; |
use Data::Dumper; |
77 |
use libdb; |
use shortcuts::database qw( hash2sql dsn2dbname ); |
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|
use Data::Storage::Result::DBI; |
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|
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|
81 |
# get logger instance |
# get logger instance |
82 |
my $logger = Log::Dispatch::Config->instance; |
my $logger = Log::Dispatch::Config->instance; |
83 |
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|
84 |
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|
85 |
our $metainfo = { |
sub getMetaInfo { |
86 |
'disconnectMethod' => 'disconnect', |
my $self = shift; |
87 |
}; |
$logger->debug( __PACKAGE__ . "->getMetaInfo()" ); |
88 |
|
return { |
89 |
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'disconnectMethod' => 'disconnect', |
90 |
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}; |
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} |
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|
93 |
sub connect { |
sub connect { |
94 |
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|
106 |
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|
107 |
#use Data::Dumper; print Dumper($self->{dbi}); |
#use Data::Dumper; print Dumper($self->{dbi}); |
108 |
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|
109 |
$self->{COREHANDLE} = DBI->connect( $dsn, '', '', $self->{locator}->{dbi} ); |
eval { |
110 |
if (!$self->{COREHANDLE}) { |
$self->{_COREHANDLE} = DBI->connect( $dsn, '', '', $self->{locator}->{dbi} ); |
111 |
$logger->warning( __PACKAGE__ . "->connect failed: " . DBI::errstr ); |
if (!$self->{_COREHANDLE}) { |
112 |
return; |
$logger->warning( __PACKAGE__ . "->connect failed: " . DBI::errstr ); |
113 |
} |
return; |
114 |
|
} |
115 |
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}; |
116 |
|
$logger->warning( __PACKAGE__ . "->connect failed: " . $@ ) if $@; |
117 |
|
|
118 |
} |
} |
119 |
$self->configureCOREHANDLE(); |
$self->configureCOREHANDLE(); |
120 |
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|
130 |
|
|
131 |
$logger->debug( __PACKAGE__ . "->configureCOREHANDLE" ); |
$logger->debug( __PACKAGE__ . "->configureCOREHANDLE" ); |
132 |
|
|
133 |
# apply configured modifications |
return if !$self->{_COREHANDLE}; |
134 |
|
|
135 |
|
# apply configured modifications to DBI-handle |
136 |
if (exists $self->{locator}->{dbi}->{trace_level} && exists $self->{locator}->{dbi}->{trace_file}) { |
if (exists $self->{locator}->{dbi}->{trace_level} && exists $self->{locator}->{dbi}->{trace_file}) { |
137 |
$self->{COREHANDLE}->trace($self->{locator}->{dbi}->{trace_level}, $self->{locator}->{dbi}->{trace_file}); |
$self->{_COREHANDLE}->trace($self->{locator}->{dbi}->{trace_level}, $self->{locator}->{dbi}->{trace_file}); |
138 |
} |
} |
139 |
if (exists $self->{locator}->{dbi}->{RaiseError}) { |
if (exists $self->{locator}->{dbi}->{RaiseError}) { |
140 |
$self->{COREHANDLE}->{RaiseError} = $self->{locator}->{dbi}->{RaiseError}; |
$self->{_COREHANDLE}->{RaiseError} = $self->{locator}->{dbi}->{RaiseError}; |
141 |
} |
} |
142 |
if (exists $self->{locator}->{dbi}->{PrintError}) { |
if (exists $self->{locator}->{dbi}->{PrintError}) { |
143 |
$self->{COREHANDLE}->{PrintError} = $self->{locator}->{dbi}->{PrintError}; |
$self->{_COREHANDLE}->{PrintError} = $self->{locator}->{dbi}->{PrintError}; |
144 |
} |
} |
145 |
if (exists $self->{locator}->{dbi}->{HandleError}) { |
if (exists $self->{locator}->{dbi}->{HandleError}) { |
146 |
$self->{COREHANDLE}->{HandleError} = $self->{locator}->{dbi}->{HandleError}; |
$self->{_COREHANDLE}->{HandleError} = $self->{locator}->{dbi}->{HandleError}; |
147 |
} |
} |
148 |
|
|
149 |
} |
} |
152 |
my $self = shift; |
my $self = shift; |
153 |
my $sql = shift; |
my $sql = shift; |
154 |
|
|
155 |
|
# pre-flight check: is $sql defined? |
156 |
|
if (!$sql) { |
157 |
|
$logger->warning( __PACKAGE__ . "->_sendSql: \$sql was empty." ); |
158 |
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return; |
159 |
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} |
160 |
|
|
161 |
# two-level handling for implicit connect: |
# two-level handling for implicit connect: |
162 |
# if there's no corehandle ... |
# if there's no corehandle ... |
163 |
if (!$self->{COREHANDLE}) { |
if (!$self->{_COREHANDLE}) { |
164 |
# ... try to connect, but ... |
# ... try to connect, but ... |
165 |
$self->connect(); |
$self->connect(); |
166 |
# ... if this still fails, there's something wrong probably, so we won't continue |
# ... if this still fails, there's something wrong probably, so we won't continue |
167 |
if (!$self->{COREHANDLE}) { |
if (!$self->{_COREHANDLE}) { |
168 |
return; |
return; |
169 |
} |
} |
170 |
} |
} |
171 |
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|
172 |
#print "prepare sql: $sql\n"; |
#print "prepare sql: $sql\n"; |
173 |
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|
174 |
my $sth = $self->{COREHANDLE}->prepare($sql); |
my $sth = $self->{_COREHANDLE}->prepare($sql); |
175 |
$sth->execute(); |
$sth->execute(); |
176 |
return $sth; |
return $sth; |
177 |
} |
} |
179 |
sub sendCommand { |
sub sendCommand { |
180 |
my $self = shift; |
my $self = shift; |
181 |
my $command = shift; |
my $command = shift; |
182 |
|
# TODO: when tracing: yes, do actually log this |
183 |
#$logger->debug( __PACKAGE__ . "->sendCommand( command $command )" ); |
#$logger->debug( __PACKAGE__ . "->sendCommand( command $command )" ); |
184 |
my $cmdHandle = $self->_sendSql($command); |
my $cmdHandle = $self->_sendSql($command); |
185 |
my $result = Data::Storage::Result::DBI->new( RESULTHANDLE => $cmdHandle ); |
my $result = Data::Storage::Result::DBI->new( RESULTHANDLE => $cmdHandle ); |
186 |
return $result; |
return $result; |
187 |
} |
} |
188 |
|
|
189 |
sub quoteSql { |
sub getChildNodes { |
190 |
|
my $self = shift; |
191 |
|
my @nodes; |
192 |
|
$logger->debug( __PACKAGE__ . "->getChildNodes()" ); |
193 |
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my $locator = $self->{locator}; |
194 |
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#print Dumper($locator); exit; |
195 |
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if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
196 |
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my $dbname = dsn2dbname($self->{locator}->{dbi}->{dsn}); |
197 |
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my $key = "Tables_in_$dbname"; |
198 |
|
while ( my $row = $result->getNextEntry() ) { |
199 |
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push @nodes, $row->{$key}; |
200 |
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} |
201 |
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} |
202 |
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return \@nodes; |
203 |
|
} |
204 |
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|
205 |
|
sub getListUnfiltered { |
206 |
my $self = shift; |
my $self = shift; |
207 |
my $string = shift; |
my $nodename = shift; |
208 |
if ($string) { |
my @list; |
209 |
$string =~ s/'/\\'/g; |
$logger->debug( __PACKAGE__ . "->getListUnfiltered( nodename => '" . $nodename . "' )" ); |
210 |
|
# get list of rows from rdbms by table name |
211 |
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my $result = $self->sendCommand("SELECT * FROM $nodename"); |
212 |
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while ( my $row = $result->getNextEntry() ) { |
213 |
|
push @list, $row; |
214 |
} |
} |
215 |
return $string; |
return \@list; |
216 |
} |
} |
217 |
|
|
218 |
|
sub sendQuery { |
219 |
|
my $self = shift; |
220 |
|
my $query = shift; |
221 |
|
|
222 |
sub getChildNodes { |
$logger->debug( __PACKAGE__ . "->sendQuery" ); |
223 |
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|
224 |
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my $crud = $query->{options}->{crud}; |
225 |
|
$crud ||= $query->{options}->{action}; |
226 |
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$crud ||= 'RETRIEVE'; |
227 |
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|
228 |
|
if (my $guid = $query->{options}->{GUID}) { |
229 |
|
$query->{criterias} = [ { key => 'guid', op => 'eq', val => $guid } ]; |
230 |
|
} |
231 |
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|
232 |
|
# check criterias (load & save) |
233 |
|
#my $sql = "SELECT cs FROM $self->{metainfo}->{$descent}->{node} WHERE $self->{metainfo}->{$descent}->{IdentProvider}->{arg}='$self->{entry}->{source}->{ident}';"; |
234 |
|
#my $result = $self->{metainfo}->{$descent}->{storage}->sendCommand($sql); |
235 |
|
my @crits; |
236 |
|
foreach (@{$query->{criterias}}) { |
237 |
|
my $op = ''; |
238 |
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$op = '=' if lc $_->{op} eq 'eq'; |
239 |
|
push @crits, "$_->{key}$op'$_->{val}'"; |
240 |
|
} |
241 |
|
# HACK: this is hardcoded ;( expand possibilities! |
242 |
|
my $crit = join(' AND ', @crits); |
243 |
|
|
244 |
|
# check subnodes (load) |
245 |
|
my $subnodes = {}; |
246 |
|
map { $subnodes->{$_}++ } @{$query->{subnodes}}; |
247 |
|
|
248 |
|
# check payload (save) |
249 |
|
#print Dumper($query->{payload}); |
250 |
|
#$subnodes ||= $query->{payload}; |
251 |
|
|
252 |
|
# dispatch action |
253 |
|
if ($crud eq 'RETRIEVE') { |
254 |
|
my $sql = hash2sql($query->{node}, $subnodes, 'SELECT', $crit); |
255 |
|
return $self->sendCommand($sql); |
256 |
|
|
257 |
|
} elsif ($crud eq 'UPDATE') { |
258 |
|
my $sql = hash2sql($query->{node}, $query->{payload}, 'UPDATE', $crit); |
259 |
|
$self->sendCommand($sql); |
260 |
|
|
261 |
|
} elsif ($crud eq 'DELETE') { |
262 |
|
my $sql = hash2sql($query->{node}, $query->{payload}, 'DELETE', $crit); |
263 |
|
$self->sendCommand($sql); |
264 |
|
|
265 |
|
} |
266 |
|
|
267 |
|
} |
268 |
|
|
269 |
|
sub eraseAll { |
270 |
my $self = shift; |
my $self = shift; |
271 |
my @nodes; |
my $classname = shift; |
272 |
|
$logger->debug( __PACKAGE__ . "->eraseAll" ); |
273 |
|
my $sql = "DELETE FROM $classname"; |
274 |
|
$self->sendCommand($sql); |
275 |
|
} |
276 |
|
|
277 |
$logger->debug( __PACKAGE__ . "->getChildNodes()" ); |
# TODO: actually implement the filtering functionality using $this->sendQuery |
278 |
|
sub getListFiltered { |
279 |
|
my $self = shift; |
280 |
|
my $nodename = shift; |
281 |
|
return $self->getListUnfiltered($nodename); |
282 |
|
} |
283 |
|
|
284 |
if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
# TODO: do this via a parametrized "$self->connect(<connect just to database server - don't select database>)" |
285 |
my $dbname = getDbNameByDsn($self->{locator}->{dbi}->{dsn}); |
sub createDb { |
286 |
my $key = "Tables_in_$dbname"; |
|
287 |
while ( my $row = $result->_getNextEntry() ) { |
my $self = shift; |
288 |
push @nodes, $row->{$key}; |
|
289 |
|
# get dsn from Data::Storage::Locator instance |
290 |
|
my $dsn = $self->{locator}->{dbi}->{dsn}; |
291 |
|
|
292 |
|
$logger->debug( __PACKAGE__ . "->createDb( dsn $dsn )" ); |
293 |
|
|
294 |
|
# remove database setting from dsn-string |
295 |
|
$dsn =~ s/database=(.+?);//; |
296 |
|
|
297 |
|
# remember extracted database name to know what actually to create right now |
298 |
|
my $database_name = $1; |
299 |
|
|
300 |
|
# flag to indicate goodness |
301 |
|
my $ok; |
302 |
|
|
303 |
|
# connect to database server - don't select/use any specific database |
304 |
|
#if ( my $dbh = DBI->connect($dsn, '', '', { PrintError => 0 } ) ) { |
305 |
|
if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) { |
306 |
|
|
307 |
|
if ($database_name) { |
308 |
|
if ($dbh->do("CREATE DATABASE $database_name")) { |
309 |
|
$ok = 1; |
310 |
|
} |
311 |
} |
} |
312 |
|
|
313 |
|
$dbh->disconnect(); |
314 |
|
|
315 |
} |
} |
316 |
|
|
317 |
return \@nodes; |
return $ok; |
318 |
|
|
319 |
|
} |
320 |
|
|
321 |
|
sub getCOREHANDLE { |
322 |
|
my $self = shift; |
323 |
|
return $self->{_COREHANDLE}; |
324 |
} |
} |
325 |
|
|
326 |
|
sub dropDb { |
327 |
|
my $self = shift; |
328 |
|
my $dsn = $self->{locator}->{dbi}->{dsn}; |
329 |
|
|
330 |
|
$logger->debug( __PACKAGE__ . "->dropDb( dsn $dsn )" ); |
331 |
|
|
332 |
|
$dsn =~ s/database=(.+?);//; |
333 |
|
my $database_name = $1; |
334 |
|
|
335 |
package Data::Storage::Result::DBI; |
my $ok; |
336 |
|
|
337 |
|
if ( my $dbh = DBI->connect($dsn, '', '', { |
338 |
|
PrintError => 0, |
339 |
|
} ) ) { |
340 |
|
if ($database_name) { |
341 |
|
if ($dbh->do("DROP DATABASE $database_name;")) { |
342 |
|
$ok = 1; |
343 |
|
} |
344 |
|
} |
345 |
|
|
346 |
use strict; |
$dbh->disconnect(); |
|
use warnings; |
|
347 |
|
|
348 |
use base ("Data::Storage::Result"); |
} |
349 |
|
|
350 |
|
return $ok; |
351 |
|
} |
352 |
|
|
353 |
sub DESTROY { |
sub rebuildDb { |
354 |
my $self = shift; |
my $self = shift; |
355 |
#$logger->debug( __PACKAGE__ . "->" . "DESTROY" ); |
$logger->info( __PACKAGE__ . "->rebuildDb()" ); |
356 |
$self->{RESULTHANDLE} && $self->{RESULTHANDLE}->finish(); |
my @results; |
357 |
|
|
358 |
|
# sum up results (bool (0/1)) in array |
359 |
|
#push @results, $self->retreatSchema(); |
360 |
|
push @results, $self->dropDb(); |
361 |
|
push @results, $self->createDb(); |
362 |
|
#push @results, $self->deploySchema(); |
363 |
|
|
364 |
|
# scan array for "bad ones" |
365 |
|
my $res = 1; |
366 |
|
map { |
367 |
|
$res = 0 if (!$_); |
368 |
|
} @results; |
369 |
|
|
370 |
|
return $res; |
371 |
} |
} |
372 |
|
|
373 |
sub _getNextEntry { |
sub testAvailability { |
374 |
my $self = shift; |
my $self = shift; |
375 |
$self->{RESULTHANDLE} && return $self->{RESULTHANDLE}->fetchrow_hashref; |
my $status = $self->testDsn(); |
376 |
|
$self->{locator}->{status}->{available} = $status; |
377 |
|
return $status; |
378 |
} |
} |
379 |
|
|
380 |
|
sub testDsn { |
381 |
|
my $self = shift; |
382 |
|
my $dsn = $self->{locator}->{dbi}->{dsn}; |
383 |
|
my $result; |
384 |
|
if ( my $dbh = DBI->connect($dsn, '', '', { |
385 |
|
PrintError => 0, |
386 |
|
} ) ) { |
387 |
|
|
388 |
|
# TODO: REVIEW |
389 |
|
$dbh->disconnect(); |
390 |
|
|
391 |
|
return 1; |
392 |
|
} else { |
393 |
|
$logger->warning( __PACKAGE__ . "[$self->{locator}->{type}]" . "->testDsn(): " . "DBI-error: " . $DBI::errstr ); |
394 |
|
} |
395 |
|
} |
396 |
|
|
|
1; |
|
397 |
|
1; |
398 |
|
__END__ |