6 |
## |
## |
7 |
## ---------------------------------------------------------------------------------------- |
## ---------------------------------------------------------------------------------------- |
8 |
## $Log$ |
## $Log$ |
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## Revision 1.3 2003/02/11 07:54:55 joko |
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## + modified module usage |
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## + debugging trials |
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## |
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## Revision 1.2 2003/02/09 05:05:58 joko |
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## + major structure changes |
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## - refactored code to sister modules |
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## + refactored code to this place |
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## |
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## Revision 1.1 2003/01/20 16:58:46 joko |
## Revision 1.1 2003/01/20 16:58:46 joko |
19 |
## + initial check-in: here they are.... |
## + initial check-in: here they are.... |
20 |
## |
## |
34 |
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35 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - main |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - main |
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# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
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37 |
use Data::Dumper; |
use Data::Dumper; |
38 |
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use Hash::Merge qw( merge ); |
39 |
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use libdb qw( hash2Sql ); |
40 |
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use Data::Transform::Deep qw( hash2object ); |
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42 |
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43 |
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# get logger instance |
44 |
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my $logger = Log::Dispatch::Config->instance; |
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46 |
# this is a shortcut method |
# this is a shortcut method |
47 |
# ... let's try to avoid _any_ redundant code in here (ok... - at the cost of method lookups...) |
# ... let's try to avoid _any_ redundant code in here (ok... - at the cost of method lookups...) |
48 |
sub _getNodeList { |
sub _getNodeList { |
49 |
my $self = shift; |
my $self = shift; |
50 |
my $descent = shift; |
my $descent = shift; |
51 |
my $filter = shift; |
my $filter = shift; |
52 |
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$logger->debug( __PACKAGE__ . "->_getNodeList( descent=$descent, accessorName=$self->{meta}->{$descent}->{accessorName} )" ); |
53 |
#$results ||= $self->{source}->getListUnfiltered($self->{meta}->{source}->{node}); |
#$results ||= $self->{source}->getListUnfiltered($self->{meta}->{source}->{node}); |
54 |
#$results ||= $self->{meta}->{source}->{storage}->getListUnfiltered($self->{meta}->{source}->{node}); |
#$results ||= $self->{meta}->{source}->{storage}->getListUnfiltered($self->{meta}->{source}->{node}); |
55 |
my $list = $self->{meta}->{$descent}->{storage}->getListFiltered($self->{meta}->{$descent}->{nodeName}, $filter); |
my $list = $self->{meta}->{$descent}->{storage}->getListFiltered($self->{meta}->{$descent}->{accessorName}, $filter); |
56 |
#print Dumper($list); |
#print Dumper($list); |
57 |
return $list; |
return $list; |
58 |
} |
} |
61 |
my $self = shift; |
my $self = shift; |
62 |
my $descent = shift; |
my $descent = shift; |
63 |
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|
64 |
#print Dumper($self->{node}->{$descent}); |
# trace |
65 |
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#print Dumper($self->{node}->{$descent}); |
66 |
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#print Dumper($self); |
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#exit; |
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69 |
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$logger->debug( __PACKAGE__ . "->_resolveNodeIdent( descent=$descent, accessorName=$self->{meta}->{$descent}->{accessorName} )" ); |
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# get to the payload |
# get to the payload |
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#my $item = $specifier->{item}; |
#my $item = $specifier->{item}; |
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#my $ident = $self->{$descent}->id($item); |
#my $ident = $self->{$descent}->id($item); |
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#my $ident = $self->{meta}->{$descent}->{storage}->id($item); |
#my $ident = $self->{meta}->{$descent}->{storage}->id($item); |
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80 |
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# trace |
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#print Dumper($self->{meta}->{$descent}); |
82 |
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#exit; |
83 |
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84 |
my $ident; |
my $ident; |
85 |
my $provider_method = $self->{meta}->{$descent}->{IdentProvider}->{method}; |
my $provider_method = $self->{meta}->{$descent}->{IdentProvider}->{method}; |
86 |
my $provider_arg = $self->{meta}->{$descent}->{IdentProvider}->{arg}; |
my $provider_arg = $self->{meta}->{$descent}->{IdentProvider}->{arg}; |
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|
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#print "provider_method: $provider_method", "\n"; |
# trace |
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#print "provider_arg: $provider_arg", "\n"; |
#print "provider_method: $provider_method", "\n"; |
90 |
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#print "provider_arg: $provider_arg", "\n"; |
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#print Dumper($payload); |
92 |
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# resolve to ident |
# resolve to ident |
94 |
if (lc $provider_method eq 'property') { |
if (lc $provider_method eq 'property') { |
127 |
my $ident = shift; |
my $ident = shift; |
128 |
my $force = shift; |
my $force = shift; |
129 |
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130 |
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#$logger->debug( __PACKAGE__ . "->_statloadNode( descent=$descent ident=$ident )" ); |
131 |
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132 |
# fetch entry to retrieve checksum from |
# fetch entry to retrieve checksum from |
133 |
# was: |
# was: |
134 |
if (!$self->{node}->{$descent} || $force) { |
if (!$self->{node}->{$descent} || $force) { |
145 |
return; |
return; |
146 |
} |
} |
147 |
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#print "yai!", "\n"; |
#print Dumper($self->{meta}); |
149 |
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150 |
my $query = { |
my $query = { |
151 |
node => $self->{meta}->{$descent}->{nodeName}, |
node => $self->{meta}->{$descent}->{accessorName}, |
152 |
subnodes => [qw( cs )], |
subnodes => [qw( cs )], |
153 |
criterias => [ |
criterias => [ |
154 |
{ key => $self->{meta}->{$descent}->{IdentProvider}->{arg}, |
{ key => $self->{meta}->{$descent}->{IdentProvider}->{arg}, |
157 |
] |
] |
158 |
}; |
}; |
159 |
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print Dumper($query); |
# trace |
161 |
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#print "query:", "\n"; |
162 |
my $result = $self->{meta}->{$descent}->{storage}->sendQuery($query); |
#print Dumper($query); |
163 |
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164 |
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# send query and fetch first entry from result |
165 |
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my $result = $self->{meta}->{$descent}->{storage}->sendQuery($query); |
166 |
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my $entry = $result->getNextEntry(); |
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# trace |
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#print Dumper($entry); |
170 |
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#print "pers: " . $self->{meta}->{$descent}->{storage}->is_persistent($entry), "\n"; |
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#my $state = $self->{meta}->{$descent}->{storage}->_fetch_object_state($entry, { name => 'TransactionHop' } ); |
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#print Dumper($state); |
173 |
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174 |
my $entry = $result->getNextEntry(); |
# be informed about the status of the query |
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my $status = $result->getStatus(); |
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#print Dumper($entry); |
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#print "pers: " . $self->{meta}->{$descent}->{storage}->is_persistent($entry), "\n"; |
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#my $state = $self->{meta}->{$descent}->{storage}->_fetch_object_state($entry, { name => 'TransactionHop' } ); |
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#print Dumper($state); |
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my $status = $result->getStatus(); |
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#print Dumper($status); |
#print Dumper($status); |
178 |
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213 |
} |
} |
214 |
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216 |
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sub _touchNodeSet { |
217 |
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my $self = shift; |
218 |
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219 |
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$logger->debug( __PACKAGE__ . "->touchNodeSet" ); |
220 |
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221 |
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# check descents/nodes: does descent exist / is node available? |
222 |
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foreach my $descent (keys %{$self->{meta}}) { |
223 |
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224 |
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# 1. check metadata of descent(s) |
225 |
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if (!$self->{meta}->{$descent}) { |
226 |
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$logger->critical( __PACKAGE__ . "->touchNodeSet: Could not find descent '$descent' in configuration metadata." ); |
227 |
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next; |
228 |
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} |
229 |
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230 |
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# 2. check storage handle(s) |
231 |
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my $dbkey = $self->{meta}->{$descent}->{dbKey}; |
232 |
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if (!$self->{meta}->{$descent}->{storage}) { |
233 |
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$logger->critical( __PACKAGE__ . "->touchNodeSet: Could not access storage ( descent='$descent', dbKey='$dbkey' ) - configuration-error?" ); |
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next; |
235 |
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} |
236 |
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237 |
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# 3. check if descents (and nodes?) are actually available.... |
238 |
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# TODO: |
239 |
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# eventually pre-check mode of access-attempt (read/write) here to provide an "early-croak" if possible |
240 |
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241 |
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# trace |
242 |
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# print Dumper($self->{meta}->{$descent}->{storage}->{locator}); |
243 |
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244 |
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245 |
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my $dbType = $self->{meta}->{$descent}->{storage}->{locator}->{type}; |
246 |
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my $nodeName = $self->{meta}->{$descent}->{nodeName}; |
247 |
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my $accessorType = $self->{meta}->{$descent}->{accessorType}; |
248 |
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my $accessorName = $self->{meta}->{$descent}->{accessorName}; |
249 |
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250 |
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251 |
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# 4. check nodeset |
252 |
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253 |
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# debug message containing database type and used/determined accessor name |
254 |
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$logger->debug( __PACKAGE__ . "->touchNodeSet: Accessing dbType=$dbType, accessorName=$accessorName" ); |
255 |
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256 |
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# if target node(s) do(es) not exist, check if we should create it automagically |
257 |
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if ($dbType ne 'DBI' && !$self->{meta}->{$descent}->{storage}->existsChildNode($accessorName)) { |
258 |
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259 |
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if ($descent eq 'target' && $self->{options}->{target}->{autocreateFolders}) { |
260 |
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if (!$self->{meta}->{$descent}->{storage}->createChildNode($accessorName)) { |
261 |
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$logger->critical( __PACKAGE__ . "->touchNodeSet: Could not create node '$self->{meta}->{$descent}->{nodeName}\@$self->{meta}->{$descent}->{dbKey}' [$self->{meta}->{$descent}->{nodeType}]." ); |
262 |
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next; |
263 |
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} |
264 |
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} else { |
265 |
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$logger->critical( __PACKAGE__ . "->touchNodeSet: Could not reach node \"$nodeName\" (accessorName=$accessorName, accessorType=$accessorType) at descent \"$descent\"" ); |
266 |
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next; |
267 |
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} |
268 |
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} |
269 |
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270 |
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} |
271 |
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272 |
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# trace |
273 |
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#print Dumper($self->{meta}); |
274 |
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#exit; |
275 |
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276 |
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277 |
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return 1; |
278 |
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279 |
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} |
280 |
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281 |
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282 |
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283 |
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sub _modifyNode { |
284 |
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my $self = shift; |
285 |
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my $descent = shift; |
286 |
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my $action = shift; |
287 |
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my $map = shift; |
288 |
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my $crit = shift; |
289 |
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290 |
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# map for new style callbacks |
291 |
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my $map_callbacks = {}; |
292 |
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293 |
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# checks go first! |
294 |
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295 |
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# TODO: this should be reviewed first - before extending ;-) |
296 |
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# TODO: this should be extended: |
297 |
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# count this cases inside the caller to this sub and provide a better overall message |
298 |
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# if this counts still zero in the end: |
299 |
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# "No nodes have been touched for modify: Do you have column-headers in your csv file?" |
300 |
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if (not defined $self->{node}) { |
301 |
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#$logger->critical( __PACKAGE__ . "->_modifyNode failed: \"$descent\" node is empty." ); |
302 |
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#return; |
303 |
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} |
304 |
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305 |
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# transfer callback nodes from value map to callback map - handle them afterwards! - (new style callbacks) |
306 |
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if (my $callbacks = $self->{meta}->{$descent}->{Callback}) { |
307 |
|
foreach my $callback (keys %{$callbacks->{write}}) { |
308 |
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$map_callbacks->{write}->{$callback} = $map->{$callback}; |
309 |
|
delete $map->{$callback}; |
310 |
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} |
311 |
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} |
312 |
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313 |
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|
314 |
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# trace |
315 |
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#print Dumper($self->{meta}); |
316 |
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317 |
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318 |
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# -------------------------------------------------------------------------- |
319 |
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# DBI speaks SQL |
320 |
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if ($self->{meta}->{$descent}->{storage}->{locator}->{type} eq 'DBI') { |
321 |
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|
322 |
|
# trace |
323 |
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#print Dumper($map); |
324 |
|
#delete $map->{cs}; |
325 |
|
|
326 |
|
# transfer data |
327 |
|
# TODO: wrap this around '$storageHandle->sendQuery(...)'!? |
328 |
|
my $sql_main; |
329 |
|
if (lc($action) eq 'insert') { |
330 |
|
$sql_main = hash2Sql($self->{meta}->{$descent}->{accessorName}, $map, 'SQL_INSERT'); |
331 |
|
} elsif (lc $action eq 'update') { |
332 |
|
$crit ||= "$self->{meta}->{$descent}->{IdentProvider}->{arg}='$self->{node}->{$descent}->{ident}'"; |
333 |
|
$sql_main = hash2Sql($self->{meta}->{$descent}->{accessorName}, $map, 'SQL_UPDATE', $crit); |
334 |
|
} |
335 |
|
my $sqlHandle = $self->{meta}->{$descent}->{storage}->sendCommand($sql_main); |
336 |
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|
337 |
|
# handle errors |
338 |
|
if ($sqlHandle->err) { |
339 |
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#if ($self->{args}->{debug}) { print "sql-error with statement: $sql_main", "\n"; } |
340 |
|
$self->{node}->{status}->{error} = { |
341 |
|
statement => $sql_main, |
342 |
|
state => $sqlHandle->state, |
343 |
|
err => $sqlHandle->err, |
344 |
|
errstr => $sqlHandle->errstr, |
345 |
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}; |
346 |
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} else { |
347 |
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$self->{node}->{status}->{ok} = 1; |
348 |
|
} |
349 |
|
|
350 |
|
|
351 |
|
# -------------------------------------------------------------------------- |
352 |
|
# Tangram does it the oo-way (naturally) |
353 |
|
} elsif ($self->{meta}->{$descent}->{storage}->{locator}->{type} eq 'Tangram') { |
354 |
|
my $sql_main; |
355 |
|
my $object; |
356 |
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|
357 |
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# determine classname |
358 |
|
my $classname = $self->{meta}->{$descent}->{nodeType}; |
359 |
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|
360 |
|
# attributes/properties to exclude |
361 |
|
# push declared ones from metadata |
362 |
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my @exclude = @{$self->{meta}->{$descent}->{subnodes_exclude}}; |
363 |
|
# push the attributes associated with the identifier |
364 |
|
if (my $identProvider = $self->{meta}->{$descent}->{IdentProvider}) { |
365 |
|
push @exclude, $identProvider->{arg}; |
366 |
|
} |
367 |
|
|
368 |
|
# trace |
369 |
|
#print Dumper($self->{meta}); |
370 |
|
#exit; |
371 |
|
|
372 |
|
# new feature: |
373 |
|
# - check TypeProvider metadata property from other side |
374 |
|
# - use argument (arg) inside as a classname for object creation on this side |
375 |
|
#my $otherSide = $self->_otherSide($descent); |
376 |
|
if (my $typeProvider = $self->{meta}->{$descent}->{TypeProvider}) { |
377 |
|
#print Dumper($map); |
378 |
|
$classname = $map->{$typeProvider->{arg}}; |
379 |
|
# remove nodes from map also (push nodes to "subnodes_exclude" list) |
380 |
|
push @exclude, $typeProvider->{arg}; |
381 |
|
} |
382 |
|
|
383 |
|
# exclude banned properties (remove from map) |
384 |
|
#map { delete $self->{node}->{map}->{$_} } @{$self->{args}->{exclude}}; |
385 |
|
map { delete $map->{$_} } @exclude; |
386 |
|
|
387 |
|
# list of properties |
388 |
|
my @props = keys %{$map}; |
389 |
|
|
390 |
|
# transfer data |
391 |
|
if (lc $action eq 'insert') { |
392 |
|
|
393 |
|
# make the object persistent in four steps: |
394 |
|
# - raw create (perl / class tangram scope) |
395 |
|
# - orm insert (tangram scope) ... this establishes inheritance - don't try to fill in inherited properties before! |
396 |
|
# is this a Tangram bug? |
397 |
|
# - raw fill-in from hash (perl scope) |
398 |
|
# - orm update (tangram scope) ... this updates all properties just filled in |
399 |
|
|
400 |
|
|
401 |
|
# ========================== |
402 |
|
# TODO: REVIEW HERE!!! |
403 |
|
# can't we achieve this more elegant? |
404 |
|
# o use DesignPattern::Object??? |
405 |
|
# o use Hash::Merge!!! (take care about the cloning behaviour) |
406 |
|
|
407 |
|
# check if object exists (is classname a valid perl package/module?) |
408 |
|
|
409 |
|
# we can just check if the classname is valid here |
410 |
|
if (!$classname) { |
411 |
|
$logger->critical( __PACKAGE__ . "->_modifyNode: classname is undefined" ); |
412 |
|
# FIXME: stop syncing here? |
413 |
|
return; |
414 |
|
} |
415 |
|
|
416 |
|
# try to match against the classes known by Class::Tangram |
417 |
|
# FIXME: do "/i" on win32 only! |
418 |
|
my $classname_find = quotemeta($classname); |
419 |
|
if (!grep(m/$classname_find/i, Class::Tangram::known_classes())) { |
420 |
|
$logger->critical( __PACKAGE__ . "->_modifyNode: Classname '$classname' is not known by Class::Tangram" ); |
421 |
|
# FIXME: stop syncing here? |
422 |
|
return; |
423 |
|
} |
424 |
|
|
425 |
|
# create new object ... |
426 |
|
# V1 |
427 |
|
# build array to initialize object |
428 |
|
#my @initarray = (); |
429 |
|
#map { push @initarray, $_, undef; } @props; |
430 |
|
#my $object = $classname->new( @initarray ); |
431 |
|
# V2 |
432 |
|
$object = $classname->new(); |
433 |
|
# V3 |
434 |
|
# $object = DesignPattern::Object->new($data); |
435 |
|
|
436 |
|
# ... pass to orm first ... |
437 |
|
$self->{meta}->{$descent}->{storage}->insert($object); |
438 |
|
|
439 |
|
# ... and initialize with empty (undef'd) properties afterwards. |
440 |
|
map { $object->{$_} = undef; } @props; |
441 |
|
|
442 |
|
# trace |
443 |
|
#print "\n"; |
444 |
|
#print Dumper($map); |
445 |
|
#print Dumper($object); |
446 |
|
#exit; |
447 |
|
|
448 |
|
# mix in (merge) values ... |
449 |
|
# TODO: use Hash::Merge here? benchmark! |
450 |
|
# no! we'd need a Object::Merge here! it's *...2object* |
451 |
|
hash2object($object, $map); |
452 |
|
|
453 |
|
# trace |
454 |
|
#print Dumper($object); |
455 |
|
#exit; |
456 |
|
|
457 |
|
# TODO: REVIEW HERE!!! |
458 |
|
# ========================== |
459 |
|
|
460 |
|
# ... and re-update@orm. |
461 |
|
$self->{meta}->{$descent}->{storage}->update($object); |
462 |
|
|
463 |
|
# asymmetry: get ident after insert |
464 |
|
# TODO: |
465 |
|
# - just do this if it is an IdentAuthority |
466 |
|
# - use IdentProvider metadata here |
467 |
|
#print Dumper($self->{meta}->{$descent}); |
468 |
|
my $oid = $self->{meta}->{$descent}->{storage}->id($object); |
469 |
|
#print "oid: $oid", "\n"; |
470 |
|
$self->{node}->{$descent}->{ident} = $oid; |
471 |
|
|
472 |
|
|
473 |
|
} elsif (lc $action eq 'update') { |
474 |
|
|
475 |
|
# get fresh object from orm first |
476 |
|
$object = $self->{meta}->{$descent}->{storage}->load($self->{node}->{$descent}->{ident}); |
477 |
|
|
478 |
|
#print Dumper($self->{node}); |
479 |
|
|
480 |
|
# mix in values |
481 |
|
#print Dumper($object); |
482 |
|
# TODO: use Hash::Merge here??? |
483 |
|
hash2object($object, $map); |
484 |
|
#print Dumper($object); |
485 |
|
#exit; |
486 |
|
|
487 |
|
# update orm |
488 |
|
$self->{meta}->{$descent}->{storage}->update($object); |
489 |
|
|
490 |
|
} |
491 |
|
|
492 |
|
#exit; |
493 |
|
|
494 |
|
my $error = 0; |
495 |
|
|
496 |
|
# handle new style callbacks - this is a HACK - do this without an eval! |
497 |
|
#print Dumper($map); |
498 |
|
#print "cb: ", Dumper($self->{meta}->{$descent}->{Callback}); |
499 |
|
#print Dumper($map_callbacks); |
500 |
|
foreach my $node (keys %{$map_callbacks->{write}}) { |
501 |
|
#print Dumper($node); |
502 |
|
my $perl_callback = $self->{meta}->{$descent}->{node} . '::' . $node . '_write'; |
503 |
|
my $evalstring = $perl_callback . '( { object => $object, value => $map_callbacks->{write}->{$node}, storage => $self->{meta}->{$descent}->{storage} } );'; |
504 |
|
#print $evalstring, "\n"; exit; |
505 |
|
eval($evalstring); |
506 |
|
if ($@) { |
507 |
|
$error = 1; |
508 |
|
print $@, "\n"; |
509 |
|
} |
510 |
|
|
511 |
|
#print "after eval", "\n"; |
512 |
|
|
513 |
|
if (!$error) { |
514 |
|
# re-update@orm |
515 |
|
$self->{meta}->{$descent}->{storage}->update($object); |
516 |
|
} |
517 |
|
} |
518 |
|
|
519 |
|
# handle errors |
520 |
|
if ($error) { |
521 |
|
#print "error", "\n"; |
522 |
|
=pod |
523 |
|
my $sqlHandle; |
524 |
|
#if ($self->{args}->{debug}) { print "sql-error with statement: $sql_main", "\n"; } |
525 |
|
$self->{node}->{status}->{error} = { |
526 |
|
statement => $sql_main, |
527 |
|
state => $sqlHandle->state, |
528 |
|
err => $sqlHandle->err, |
529 |
|
errstr => $sqlHandle->errstr, |
530 |
|
}; |
531 |
|
=cut |
532 |
|
# rollback.... |
533 |
|
#print "rollback", "\n"; |
534 |
|
$self->{meta}->{$descent}->{storage}->erase($object); |
535 |
|
#print "after rollback", "\n"; |
536 |
|
} else { |
537 |
|
$self->{node}->{status}->{ok} = 1; |
538 |
|
} |
539 |
|
|
540 |
|
} |
541 |
|
|
542 |
|
} |
543 |
|
|
544 |
|
|
545 |
1; |
1; |