| 1 |
################################# |
| 2 |
# |
| 3 |
# $Id: Tangram.pm,v 1.2 2002/10/17 00:10:05 joko Exp $ |
| 4 |
# |
| 5 |
# $Log: Tangram.pm,v $ |
| 6 |
# Revision 1.2 2002/10/17 00:10:05 joko |
| 7 |
# + removed dependency from tsobj.pm, schema is now independent |
| 8 |
# + sub getNewPerlObjectByPkgName |
| 9 |
# + sub deploySchema |
| 10 |
# + sub retreatSchema |
| 11 |
# |
| 12 |
# Revision 1.1 2002/10/10 03:44:07 cvsjoko |
| 13 |
# + new |
| 14 |
# |
| 15 |
# |
| 16 |
################################# |
| 17 |
|
| 18 |
package Data::Storage::Handler::Tangram; |
| 19 |
|
| 20 |
use strict; |
| 21 |
use warnings; |
| 22 |
|
| 23 |
use base ("Data::Storage::Handler::Abstract"); |
| 24 |
|
| 25 |
use Tangram; |
| 26 |
use Data::Dumper; |
| 27 |
|
| 28 |
# get logger instance |
| 29 |
my $logger = Log::Dispatch::Config->instance; |
| 30 |
|
| 31 |
|
| 32 |
our $metainfo = { |
| 33 |
'disconnectMethod' => 'disconnect', |
| 34 |
}; |
| 35 |
|
| 36 |
sub getNewPerlObjectByPkgName { |
| 37 |
my $pkgname = shift; |
| 38 |
my $args = shift; |
| 39 |
$logger->debug( __PACKAGE__ . "->getNewPerlObjectByPkgName( pkgname $pkgname args $args )" ); |
| 40 |
my $evstring = "use $pkgname;"; |
| 41 |
eval($evstring); |
| 42 |
$@ && $logger->error( __PACKAGE__ . ':' . __LINE__ . " Error in eval: " . $@ ); |
| 43 |
return $pkgname->new($args); |
| 44 |
} |
| 45 |
|
| 46 |
sub connect { |
| 47 |
|
| 48 |
my $self = shift; |
| 49 |
|
| 50 |
my $dsn = shift; |
| 51 |
$dsn ||= $self->{dbi}->{dsn}; |
| 52 |
|
| 53 |
$logger->debug( __PACKAGE__ . "->connect( dsn $dsn )" ); |
| 54 |
|
| 55 |
#my $storage = Tangram::Relational->connect( $schema, $dsn ); |
| 56 |
#my $storage = Tangram::mysql->connect( $schema, $dsn ); |
| 57 |
#$storage = Tangram::Relational->connect( Project->schema, $dsn ); |
| 58 |
|
| 59 |
# if (!testDsn($dsn)) { |
| 60 |
# croak("Database at \"$dsn\" is not available"); |
| 61 |
# return; |
| 62 |
# } |
| 63 |
|
| 64 |
my $obj = getNewPerlObjectByPkgName($self->{schema}, { EXPORT_OBJECTS => $self->{classnames} } ); |
| 65 |
$self->{schema_tangram} = $obj->getSchema(); |
| 66 |
|
| 67 |
#$self->{COREHANDLE} = Tangram::Relational->connect( $schema, $dsn ); |
| 68 |
$self->{COREHANDLE} = Tangram::Relational->connect( $self->{schema_tangram}, $dsn ); |
| 69 |
|
| 70 |
#$self->{STORAGEHANDLE_UNDERLYING} = $self->getUnderlyingStorage(); |
| 71 |
#$self->{STORAGEHANDLE_UNDERLYING}->_configureCOREHANDLE(); |
| 72 |
#$self->_configureUnderlyingStorage; |
| 73 |
$self->configureCOREHANDLE(); |
| 74 |
|
| 75 |
} |
| 76 |
|
| 77 |
sub getChildNodes { |
| 78 |
|
| 79 |
my $self = shift; |
| 80 |
my @nodes; |
| 81 |
|
| 82 |
# create new DBI - Data::Storage - object from already connected DBI::db - handle inside the current COREHANDLE |
| 83 |
#my $loc = new Data::Storage::Locator( type => "DBI", dbi => { db => $self->{COREHANDLE}->{db} }); |
| 84 |
#my $loc = new Data::Storage::Locator( type => "DBI", COREHANDLE => $self->{COREHANDLE}->{db} ); |
| 85 |
my $storage = $self->_getSubLayerHandle(); |
| 86 |
#$storage->_configureCOREHANDLE(); |
| 87 |
|
| 88 |
#if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
| 89 |
if (my $result = $storage->sendCommand( 'SHOW TABLES;' ) ) { |
| 90 |
while ( my $row = $result->_getNextEntry() ) { |
| 91 |
push @nodes, $row; |
| 92 |
} |
| 93 |
} |
| 94 |
|
| 95 |
$storage->disconnect(); |
| 96 |
|
| 97 |
return \@nodes; |
| 98 |
|
| 99 |
} |
| 100 |
|
| 101 |
|
| 102 |
sub _getSubLayerHandle { |
| 103 |
|
| 104 |
my $self = shift; |
| 105 |
|
| 106 |
use Data::Dumper; |
| 107 |
#print Dumper($self); |
| 108 |
|
| 109 |
# hack, make more generic! |
| 110 |
if (!$self->{STORAGE_SUBLAYER}) { |
| 111 |
my $loc = Data::Storage::Locator->new( type => "DBI", dbi => $self->{dbi}, COREHANDLE => $self->{COREHANDLE}->{db} ); |
| 112 |
$self->{STORAGE_SUBLAYER} = Data::Storage->new( $loc, { protected => 1 } ); |
| 113 |
#$self->{STORAGE_UNDER_THE_HOOD}->{STORAGEHANDLE}->_configureCOREHANDLE(); |
| 114 |
#$self->{STORAGE_UNDER_THE_HOOD}->_configureCOREHANDLE(); |
| 115 |
} |
| 116 |
|
| 117 |
#print Dumper($self->{STORAGE_UNDER_THE_HOOD}); |
| 118 |
|
| 119 |
return $self->{STORAGE_SUBLAYER}; |
| 120 |
|
| 121 |
} |
| 122 |
|
| 123 |
sub _configureUnderlyingStorage { |
| 124 |
|
| 125 |
my $self = shift; |
| 126 |
$self->_configureCOREHANDLE_DBI(); |
| 127 |
return; |
| 128 |
|
| 129 |
foreach my $key (keys %{$self->{dbi}}) { |
| 130 |
my $val = $self->{dbi}->{$key}; |
| 131 |
print "entry: $key; $val", "\n"; |
| 132 |
$self->{COREHANDLE}->{db}->{$key} = $val; |
| 133 |
} |
| 134 |
#print Dumper($self->{COREHANDLE}->{db}); |
| 135 |
} |
| 136 |
|
| 137 |
|
| 138 |
sub configureCOREHANDLE { |
| 139 |
|
| 140 |
my $self = shift; |
| 141 |
|
| 142 |
$logger->debug( __PACKAGE__ . "->_configureCOREHANDLE" ); |
| 143 |
|
| 144 |
#my $subLayer = $self->_getSubLayerHandle(); |
| 145 |
|
| 146 |
# apply configured modifications |
| 147 |
if (exists $self->{dbi}->{trace_level} && exists $self->{dbi}->{trace_file}) { |
| 148 |
$self->{COREHANDLE}->{db}->trace($self->{dbi}->{trace_level}, $self->{dbi}->{trace_file}); |
| 149 |
} |
| 150 |
if (exists $self->{dbi}->{RaiseError}) { |
| 151 |
$self->{COREHANDLE}->{db}->{RaiseError} = $self->{dbi}->{RaiseError}; |
| 152 |
} |
| 153 |
if (exists $self->{dbi}->{PrintError}) { |
| 154 |
$self->{COREHANDLE}->{db}->{PrintError} = $self->{dbi}->{PrintError}; |
| 155 |
} |
| 156 |
if (exists $self->{dbi}->{HandleError}) { |
| 157 |
$self->{COREHANDLE}->{db}->{HandleError} = $self->{dbi}->{HandleError}; |
| 158 |
} |
| 159 |
|
| 160 |
} |
| 161 |
|
| 162 |
sub deploySchema { |
| 163 |
my $self = shift; |
| 164 |
#my $dsn = $self->{locator}->{dbi}->{dsn}; |
| 165 |
my $dsn = $self->{dbi}->{dsn}; |
| 166 |
my $ok; |
| 167 |
if ( my $dbh = DBI->connect($dsn, '', '', { |
| 168 |
PrintError => 0, |
| 169 |
} ) ) { |
| 170 |
$ok = Tangram::Relational->deploy($self->{schema}, $dbh ); |
| 171 |
$dbh->disconnect(); |
| 172 |
} |
| 173 |
return $ok; |
| 174 |
} |
| 175 |
|
| 176 |
sub retreatSchema { |
| 177 |
print "retreat\n"; |
| 178 |
my $self = shift; |
| 179 |
#my $dsn = $self->{locator}->{dbi}->{dsn}; |
| 180 |
my $dsn = $self->{dbi}->{dsn}; |
| 181 |
my $ok; |
| 182 |
if ( my $dbh = DBI->connect($dsn, '', '', { |
| 183 |
PrintError => 0, |
| 184 |
} ) ) { |
| 185 |
$ok = Tangram::Relational->retreat($self->{schema}, $dbh ); |
| 186 |
$dbh->disconnect(); |
| 187 |
} |
| 188 |
return $ok; |
| 189 |
} |
| 190 |
|
| 191 |
1; |
Parent Directory
| 
Revision Log
