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# $Id$ |
# $Id$ |
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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 |
# Revision 1.9 2002/12/05 07:58:20 joko |
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# + now using Tie::SecureHash as a base for the COREHANDLE |
# + now using Tie::SecureHash as a base for the COREHANDLE |
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# + former public COREHANDLE becomes private _COREHANDLE now |
# + former public COREHANDLE becomes private _COREHANDLE now |
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use base ("Data::Storage::Handler::Abstract"); |
use base ("Data::Storage::Handler::Abstract"); |
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use DBI; |
use DBI; |
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use Data::Dumper; |
use Data::Dumper; |
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use libdb qw( getDbNameByDsn hash2Sql ); |
use shortcuts::database qw( hash2sql dsn2dbname ); |
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use Data::Storage::Result::DBI; |
use Data::Storage::Result::DBI; |
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# get logger instance |
# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
my $logger = Log::Dispatch::Config->instance; |
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my $self = shift; |
my $self = shift; |
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my $sql = shift; |
my $sql = shift; |
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# pre-flight check: is $sql defined? |
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if (!$sql) { |
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$logger->warning( __PACKAGE__ . "->_sendSql: \$sql was empty." ); |
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return; |
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} |
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# two-level handling for implicit connect: |
# two-level handling for implicit connect: |
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# if there's no corehandle ... |
# if there's no corehandle ... |
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if (!$self->{_COREHANDLE}) { |
if (!$self->{_COREHANDLE}) { |
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my $locator = $self->{locator}; |
my $locator = $self->{locator}; |
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#print Dumper($locator); exit; |
#print Dumper($locator); exit; |
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if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
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my $dbname = getDbNameByDsn($self->{locator}->{dbi}->{dsn}); |
my $dbname = dsn2dbname($self->{locator}->{dbi}->{dsn}); |
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my $key = "Tables_in_$dbname"; |
my $key = "Tables_in_$dbname"; |
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while ( my $row = $result->getNextEntry() ) { |
while ( my $row = $result->getNextEntry() ) { |
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push @nodes, $row->{$key}; |
push @nodes, $row->{$key}; |
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sub sendQuery { |
sub sendQuery { |
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my $self = shift; |
my $self = shift; |
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my $query = shift; |
my $query = shift; |
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$logger->debug( __PACKAGE__ . "->sendQuery" ); |
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my $crud = $query->{options}->{crud}; |
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$crud ||= $query->{options}->{action}; |
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$crud ||= 'RETRIEVE'; |
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if (my $guid = $query->{options}->{GUID}) { |
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$query->{criterias} = [ { key => 'guid', op => 'eq', val => $guid } ]; |
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} |
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# check criterias (load & save) |
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#my $sql = "SELECT cs FROM $self->{metainfo}->{$descent}->{node} WHERE $self->{metainfo}->{$descent}->{IdentProvider}->{arg}='$self->{entry}->{source}->{ident}';"; |
#my $sql = "SELECT cs FROM $self->{metainfo}->{$descent}->{node} WHERE $self->{metainfo}->{$descent}->{IdentProvider}->{arg}='$self->{entry}->{source}->{ident}';"; |
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#my $result = $self->{metainfo}->{$descent}->{storage}->sendCommand($sql); |
#my $result = $self->{metainfo}->{$descent}->{storage}->sendCommand($sql); |
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my @crits; |
my @crits; |
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$op = '=' if lc $_->{op} eq 'eq'; |
$op = '=' if lc $_->{op} eq 'eq'; |
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push @crits, "$_->{key}$op'$_->{val}'"; |
push @crits, "$_->{key}$op'$_->{val}'"; |
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} |
} |
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my $subnodes = {}; |
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map { $subnodes->{$_}++ } @{$query->{subnodes}}; |
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# HACK: this is hardcoded ;( expand possibilities! |
# HACK: this is hardcoded ;( expand possibilities! |
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my $crit = join(' AND ', @crits); |
my $crit = join(' AND ', @crits); |
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my $sql = hash2Sql($query->{node}, $subnodes, 'SELECT', $crit); |
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return $self->sendCommand($sql); |
# check subnodes (load) |
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my $subnodes = {}; |
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map { $subnodes->{$_}++ } @{$query->{subnodes}}; |
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# check payload (save) |
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#print Dumper($query->{payload}); |
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#$subnodes ||= $query->{payload}; |
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# dispatch action |
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if ($crud eq 'RETRIEVE') { |
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my $sql = hash2sql($query->{node}, $subnodes, 'SELECT', $crit); |
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return $self->sendCommand($sql); |
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} elsif ($crud eq 'UPDATE') { |
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my $sql = hash2sql($query->{node}, $query->{payload}, 'UPDATE', $crit); |
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$self->sendCommand($sql); |
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} elsif ($crud eq 'DELETE') { |
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my $sql = hash2sql($query->{node}, $query->{payload}, 'DELETE', $crit); |
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$self->sendCommand($sql); |
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} |
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} |
} |
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sub eraseAll { |
sub eraseAll { |
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my $self = shift; |
my $self = shift; |
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my $classname = shift; |
my $classname = shift; |
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$logger->debug( __PACKAGE__ . "->eraseAll" ); |
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my $sql = "DELETE FROM $classname"; |
my $sql = "DELETE FROM $classname"; |
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$self->sendCommand($sql); |
$self->sendCommand($sql); |
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} |
} |
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} |
} |
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sub getCOREHANDLE2 { |
sub getCOREHANDLE { |
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my $self = shift; |
my $self = shift; |
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return $self->{_COREHANDLE}; |
return $self->{_COREHANDLE}; |
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} |
} |
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sub dropDb { |
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my $self = shift; |
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my $dsn = $self->{locator}->{dbi}->{dsn}; |
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$logger->debug( __PACKAGE__ . "->dropDb( dsn $dsn )" ); |
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$dsn =~ s/database=(.+?);//; |
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my $database_name = $1; |
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my $ok; |
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if ( my $dbh = DBI->connect($dsn, '', '', { |
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PrintError => 0, |
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} ) ) { |
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if ($database_name) { |
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if ($dbh->do("DROP DATABASE $database_name;")) { |
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$ok = 1; |
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} |
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} |
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$dbh->disconnect(); |
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} |
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return $ok; |
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} |
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sub rebuildDb { |
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my $self = shift; |
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$logger->info( __PACKAGE__ . "->rebuildDb()" ); |
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my @results; |
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# sum up results (bool (0/1)) in array |
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#push @results, $self->retreatSchema(); |
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push @results, $self->dropDb(); |
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push @results, $self->createDb(); |
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#push @results, $self->deploySchema(); |
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# scan array for "bad ones" |
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my $res = 1; |
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map { |
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$res = 0 if (!$_); |
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} @results; |
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return $res; |
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} |
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sub testAvailability { |
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my $self = shift; |
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my $status = $self->testDsn(); |
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$self->{locator}->{status}->{available} = $status; |
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return $status; |
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} |
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sub testDsn { |
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my $self = shift; |
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my $dsn = $self->{locator}->{dbi}->{dsn}; |
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my $result; |
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if ( my $dbh = DBI->connect($dsn, '', '', { |
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PrintError => 0, |
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} ) ) { |
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# TODO: REVIEW |
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$dbh->disconnect(); |
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return 1; |
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} else { |
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$logger->warning( __PACKAGE__ . "[$self->{locator}->{type}]" . "->testDsn(): " . "DBI-error: " . $DBI::errstr ); |
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} |
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} |
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1; |
1; |
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__END__ |