9 |
## ------------------------------------------------------------------------ |
## ------------------------------------------------------------------------ |
10 |
## |
## |
11 |
## $Log$ |
## $Log$ |
12 |
|
## Revision 1.19 2003/02/18 19:22:11 joko |
13 |
|
## + fixed logging |
14 |
|
## |
15 |
|
## Revision 1.18 2003/01/30 22:12:17 joko |
16 |
|
## - removed/refactored old code: ->Data::Storage::Handler::Tangram|DBI |
17 |
|
## |
18 |
|
## Revision 1.17 2003/01/30 21:42:22 joko |
19 |
|
## + minor update: renamed method |
20 |
|
## |
21 |
|
## Revision 1.16 2003/01/20 16:52:13 joko |
22 |
|
## + now using 'DesignPattern::Object' to create a new 'Data::Storage::Handler::Xyz' on demand - before we did this in a hand-rolled fashion |
23 |
|
## |
24 |
## Revision 1.15 2003/01/19 03:12:59 joko |
## Revision 1.15 2003/01/19 03:12:59 joko |
25 |
## + modified header |
## + modified header |
26 |
## - removed pod-documentation - now in 'Storage.pod' |
## - removed pod-documentation - now in 'Storage.pod' |
93 |
use strict; |
use strict; |
94 |
use warnings; |
use warnings; |
95 |
|
|
|
use Data::Storage::Locator; |
|
96 |
use Data::Dumper; |
use Data::Dumper; |
97 |
|
# FIXME: wipe out! |
|
# TODO: wipe out! |
|
98 |
use DBI; |
use DBI; |
99 |
|
|
100 |
|
use Data::Storage::Locator; |
101 |
|
use DesignPattern::Object; |
102 |
|
|
103 |
|
|
104 |
# TODO: actually implement level (integrate with Log::Dispatch) |
# TODO: actually implement level (integrate with Log::Dispatch) |
105 |
my $TRACELEVEL = 0; |
my $TRACELEVEL = 0; |
106 |
|
|
114 |
|
|
115 |
my $arg_locator = shift; |
my $arg_locator = shift; |
116 |
my $arg_options = shift; |
my $arg_options = shift; |
117 |
|
#my @args = @_; |
118 |
|
#@args ||= (); |
119 |
|
|
120 |
if (!$arg_locator) { |
if (!$arg_locator) { |
121 |
$logger->critical( __PACKAGE__ . "->new: No locator passed in!" ); |
$logger->critical( __PACKAGE__ . "->new: No locator passed in!" ); |
122 |
return; |
return; |
123 |
} |
} |
124 |
|
|
125 |
|
#print Dumper($arg_locator); |
126 |
|
|
127 |
#my $self = { STORAGEHANDLE => undef, @_ }; |
#my $self = { STORAGEHANDLE => undef, @_ }; |
128 |
my $self = { STORAGEHANDLE => undef, locator => $arg_locator, options => $arg_options }; |
my $self = { STORAGEHANDLE => undef, locator => $arg_locator, options => $arg_options }; |
129 |
#$logger->debug( __PACKAGE__ . "[$self->{locator}->{type}]" . "->new(@_)" ); |
#$logger->debug( __PACKAGE__ . "[$self->{locator}->{type}]" . "->new(@_)" ); |
130 |
$logger->debug( __PACKAGE__ . "[$arg_locator->{type}]" . "->new(@_)" ); |
$logger->debug( __PACKAGE__ . "[$arg_locator->{type}]" . "->new()" ); |
131 |
return bless $self, $class; |
return bless $self, $class; |
132 |
} |
} |
133 |
|
|
151 |
|
|
152 |
# advanced logging of AUTOLOAD calls ... |
# advanced logging of AUTOLOAD calls ... |
153 |
# ... nice but do it only when TRACING (TODO) is enabled |
# ... nice but do it only when TRACING (TODO) is enabled |
|
if ($TRACELEVEL) { |
|
154 |
my $logstring = ""; |
my $logstring = ""; |
155 |
$logstring .= __PACKAGE__ . "[$self->{locator}->{type}]" . "->" . $method; |
$logstring .= __PACKAGE__ . "[$self->{locator}->{type}]" . "->" . $method; |
156 |
#print "count: ", $#_, "\n"; |
#print "count: ", $#_, "\n"; |
160 |
# TODO: only ok if logstring doesn't contain |
# TODO: only ok if logstring doesn't contain |
161 |
# e.g. "Data::Storage[Tangram]->insert(SystemEvent=HASH(0x5c0034c)) (AUTOLOAD)" |
# e.g. "Data::Storage[Tangram]->insert(SystemEvent=HASH(0x5c0034c)) (AUTOLOAD)" |
162 |
# but that would be _way_ too specific as long as we don't have an abstract handler for this ;) |
# but that would be _way_ too specific as long as we don't have an abstract handler for this ;) |
163 |
|
if ($TRACELEVEL) { |
164 |
$logger->debug( $logstring ); |
$logger->debug( $logstring ); |
165 |
#print join('; ', @_); |
#print join('; ', @_); |
166 |
} |
} |
167 |
|
|
168 |
# filtering AUTOLOAD calls and first-time-touch of the actual storage impl |
# filtering AUTOLOAD calls and first-time-touch of the actual storage impl |
169 |
if ($self->_filter_AUTOLOAD($method)) { |
if ($self->_filter_AUTOLOAD($method)) { |
170 |
#print "_accessStorage\n"; |
#print "=== FILTER!", "\n"; |
171 |
$self->_accessStorage(); |
$self->_accessStorageHandle(); |
172 |
return $self->{STORAGEHANDLE}->$method(@_); |
if ($self->{STORAGEHANDLE}) { |
173 |
|
return $self->{STORAGEHANDLE}->$method(@_); |
174 |
|
} else { |
175 |
|
$logger->critical( __PACKAGE__ . "->AUTOLOAD: ERROR: " . $logstring ); |
176 |
|
return; |
177 |
|
} |
178 |
} |
} |
179 |
|
|
180 |
} |
} |
191 |
} |
} |
192 |
|
|
193 |
|
|
194 |
sub normalizeArgs { |
sub _accessStorageHandle { |
|
my %args = @_; |
|
|
if (!$args{dsn} && $args{meta}{dsn}) { |
|
|
$args{dsn} = $args{meta}{dsn}; |
|
|
} |
|
|
my @result = %args; |
|
|
return @result; |
|
|
} |
|
|
|
|
|
sub _accessStorage { |
|
195 |
my $self = shift; |
my $self = shift; |
196 |
# TODO: to some tracelevel! |
# TODO: to some tracelevel! |
197 |
|
#print "=========== _accessStorage", "\n"; |
198 |
if ($TRACELEVEL) { |
if ($TRACELEVEL) { |
199 |
$logger->debug( __PACKAGE__ . "[$self->{locator}->{type}]" . "->_accessStorage()" ); |
$logger->debug( __PACKAGE__ . "[$self->{locator}->{type}]" . "->_accessStorageHandle()" ); |
200 |
} |
} |
201 |
if (!$self->{STORAGEHANDLE}) { |
if (!$self->{STORAGEHANDLE}) { |
202 |
$self->_createStorageHandle(); |
return $self->_createStorageHandle(); |
203 |
} |
} |
204 |
} |
} |
205 |
|
|
206 |
|
sub _createStorageHandle1 { |
207 |
|
my $self = shift; |
208 |
|
my $type = $self->{locator}->{type}; |
209 |
|
$logger->debug( __PACKAGE__ . "[$type]" . "->_createStorageHandle()" ); |
210 |
|
|
211 |
|
my $pkg = "Data::Storage::Handler::" . $type . ""; |
212 |
|
|
213 |
|
# try to load perl module at runtime |
214 |
|
my $evalstr = "use $pkg;"; |
215 |
|
eval($evalstr); |
216 |
|
if ($@) { |
217 |
|
$logger->error( __PACKAGE__ . "[$type]" . "->_createStorageHandle(): $@" ); |
218 |
|
return; |
219 |
|
} |
220 |
|
|
221 |
|
# build up some additional arguments to pass on |
222 |
|
#my @args = %{$self->{locator}}; |
223 |
|
my @args = (); |
224 |
|
|
225 |
|
# - create new storage handle object |
226 |
|
# - propagate arguments to handler |
227 |
|
# - pass locator by reference to be able to store status- or meta-information in it |
228 |
|
$self->{STORAGEHANDLE} = $pkg->new( locator => $self->{locator}, @args ); |
229 |
|
|
230 |
|
} |
231 |
|
|
232 |
sub _createStorageHandle { |
sub _createStorageHandle { |
233 |
my $self = shift; |
my $self = shift; |
234 |
my $type = $self->{locator}->{type}; |
my $type = $self->{locator}->{type}; |
235 |
$logger->debug( __PACKAGE__ . "[$type]" . "->_createStorageHandle()" ); |
$logger->debug( __PACKAGE__ . "[$type]" . "->_createStorageHandle()" ); |
236 |
|
|
237 |
|
#print Dumper($self); |
238 |
|
#exit; |
239 |
|
|
240 |
my $pkg = "Data::Storage::Handler::" . $type . ""; |
my $pkg = "Data::Storage::Handler::" . $type . ""; |
241 |
|
|
242 |
# try to load perl module at runtime |
# try to load perl module at runtime |
243 |
|
=pod |
244 |
my $evalstr = "use $pkg;"; |
my $evalstr = "use $pkg;"; |
245 |
eval($evalstr); |
eval($evalstr); |
246 |
if ($@) { |
if ($@) { |
256 |
# - propagate arguments to handler |
# - propagate arguments to handler |
257 |
# - pass locator by reference to be able to store status- or meta-information in it |
# - pass locator by reference to be able to store status- or meta-information in it |
258 |
$self->{STORAGEHANDLE} = $pkg->new( locator => $self->{locator}, @args ); |
$self->{STORAGEHANDLE} = $pkg->new( locator => $self->{locator}, @args ); |
259 |
|
=cut |
260 |
|
|
261 |
|
$self->{STORAGEHANDLE} = DesignPattern::Object->fromPackage( $pkg, locator => $self->{locator} ); |
262 |
|
return 1; |
263 |
|
|
264 |
} |
} |
265 |
|
|
298 |
$logger->remove($name); |
$logger->remove($name); |
299 |
} |
} |
300 |
|
|
|
sub getDbName { |
|
|
my $self = shift; |
|
|
my $dsn = $self->{locator}->{dbi}->{dsn}; |
|
|
$dsn =~ m/database=(.+?);/; |
|
|
my $database_name = $1; |
|
|
return $database_name; |
|
|
} |
|
|
|
|
|
sub testAvailability { |
|
|
my $self = shift; |
|
|
my $status = $self->testDsn(); |
|
|
$self->{locator}->{status}->{available} = $status; |
|
|
return $status; |
|
|
} |
|
|
|
|
|
sub isConnected { |
|
|
my $self = shift; |
|
|
# TODO: REVIEW! |
|
|
return 1 if $self->{STORAGEHANDLE}; |
|
|
} |
|
|
|
|
|
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 ); |
|
|
} |
|
|
} |
|
301 |
|
|
302 |
1; |
1; |
303 |
__END__ |
__END__ |