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# $Id$ |
# $Id$ |
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# |
# |
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# $Log$ |
# $Log$ |
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# Revision 1.10 2003/06/06 03:26:24 joko |
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# + sub existsStorage |
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# |
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# Revision 1.9 2003/03/27 15:31:08 joko |
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# fixes to modules regarding new namespace(s) below Data::Mungle::* |
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# |
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# Revision 1.8 2003/02/18 19:19:47 joko |
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# + modified locator handling |
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# |
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# Revision 1.7 2003/01/30 22:21:52 joko |
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# + changed 'connect'-behaviour back to old state |
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# + renamed log-output (now using 'initializing' instead of 'booting' - corresponding to 'initStorage') |
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# |
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# Revision 1.6 2003/01/30 21:44:00 joko |
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# + temporary fix: (FIXME) now connecting to storage on storagehandle-instantiation |
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# |
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# Revision 1.5 2003/01/19 02:39:57 joko |
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# + moved 'deep_copy' from module 'libp' to module 'Data.Transform.Deep' |
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# + preserved order for hashes '$self->{config}' and '$self->{locator}' by using Tie::IxHash |
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# |
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# Revision 1.4 2002/12/04 07:38:07 jonen |
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# + deep copy |
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# |
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# Revision 1.3 2002/12/01 22:18:28 joko |
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# - no interactive implicit deploy |
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# + only test integrity if storage available |
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# |
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# Revision 1.2 2002/12/01 07:08:35 joko |
# Revision 1.2 2002/12/01 07:08:35 joko |
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# + needs to "use Data::Storage;" |
# + needs to "use Data::Storage;" |
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# |
# |
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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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use libp qw( deep_copy ); |
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - main |
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use Tie::IxHash; |
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use Data::Dumper; |
use Data::Dumper; |
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use Data::Storage; |
use Data::Storage; |
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#use Data::Storage::Locator; |
use Data::Storage::Locator; |
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use Data::Mungle::Transform::Deep qw( deep_copy ); |
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use Data::Mungle::Compare::Struct qw( isEmpty ); |
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sub new { |
sub new { |
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my $invocant = shift; |
my $invocant = shift; |
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$logger->debug( __PACKAGE__ . "->new( @args )" ); |
$logger->debug( __PACKAGE__ . "->new( @args )" ); |
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my $self = { @_ }; |
my $self = { @_ }; |
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return bless $self, $class; |
bless $self, $class; |
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# preserve order of configuration variables |
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#$self->{config} = {}; |
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tie %{$self->{config}}, 'Tie::IxHash'; |
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tie %{$self->{locator}}, 'Tie::IxHash'; |
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return $self; |
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} |
} |
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sub addConfig { |
sub addConfig { |
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$self->{storage}->{$name} = $storage; |
$self->{storage}->{$name} = $storage; |
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} |
} |
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sub existsStorage { |
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my $self = shift; |
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my $name = shift; |
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return exists $self->{storage}->{$name}; |
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} |
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sub initLocator { |
sub initLocator { |
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my $self = shift; |
my $self = shift; |
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my $name = shift; |
my $name = shift; |
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my $db_config = $self->{config}->{$name}; |
my $db_config = $self->{config}->{$name}; |
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$db_config ||= {}; |
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$logger->debug( __PACKAGE__ . "->initLocator( db_config $db_config )" ); |
$logger->debug( __PACKAGE__ . "->initLocator( name='$name' )" ); |
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my $cfg_locator = {}; |
my $cfg_locator = {}; |
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$cfg_locator->{$_} = $default->{$_}; |
$cfg_locator->{$_} = $default->{$_}; |
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} |
} |
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# name it |
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$cfg_locator->{name} = $name; |
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# merge in specific settings |
# merge in specific settings |
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foreach (keys %$db_config) { |
my $specific = deep_copy($db_config); |
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$cfg_locator->{$_} = $db_config->{$_}; |
foreach (keys %$specific) { |
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$cfg_locator->{$_} = $specific->{$_}; |
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} |
} |
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# HACK: transfer dsn from main to dbi settings |
# HACK: transfer dsn from main to dbi settings |
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# HACK: set errorhandler if dbi settings are present |
# HACK: set errorhandler if dbi settings are present |
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$cfg_locator->{dbi}->{HandleError} = \&_dbErrorHandler if $cfg_locator->{dbi}; |
$cfg_locator->{dbi}->{HandleError} = \&_dbErrorHandler if $cfg_locator->{dbi}; |
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# trace |
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#print "locator:", "\n"; |
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#print Dumper($cfg_locator); |
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# check locator metadata |
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if (isEmpty($cfg_locator)) { |
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$logger->warning( __PACKAGE__ . "->initLocator( name='$name' ): Metadata was empty. Please check configuration." ); |
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return; |
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} |
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# name it |
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$cfg_locator->{name} = $name; |
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# create new locator object |
# create new locator object |
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$self->{locator}->{$name} = Data::Storage::Locator->new( $cfg_locator ); |
$self->{locator}->{$name} = Data::Storage::Locator->new( $cfg_locator ); |
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sub initLocators { |
sub initLocators { |
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my $self = shift; |
my $self = shift; |
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foreach (keys %{$self->{config}}) { |
foreach (keys %{$self->{config}}) { |
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#print $_, "\n"; |
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$self->initLocator($_, $self->{config}->{$_}) if !/^_/; |
$self->initLocator($_, $self->{config}->{$_}) if !/^_/; |
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} |
} |
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#print "locs: ", Dumper($self->{locator}); |
#print "locs: ", Dumper($self->{locator}); |
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my $self = shift; |
my $self = shift; |
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my $name = shift; |
my $name = shift; |
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return if $self->existsStorage($name); |
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my $locator = $self->getLocator($name); |
my $locator = $self->getLocator($name); |
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$logger->info( __PACKAGE__ . " is booting storage declared by locator \"$name\"" ); |
$logger->info( __PACKAGE__ . " is initializing storage declared by locator \"$name\"" ); |
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my $storage = Data::Storage->new($locator); |
my $storage = Data::Storage->new($locator); |
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# TODO: do below (after 'testAvailability' and 'testIntegrity') again!!! |
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#$storage->connect(); |
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my $log_prefix = __PACKAGE__ . "->initStorage: "; |
my $log_prefix = __PACKAGE__ . "->initStorage: "; |
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$log_prefix .= "dsn=\"$self->{locator}->{$name}->{dsn}\"" if $self->{locator}->{$name}->{dsn}; |
$log_prefix .= "dsn=\"$self->{locator}->{$name}->{dsn}\"" if $self->{locator}->{$name}->{dsn}; |
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# should we test availability of the storage before using it? |
# should we test availability of the storage before using it? |
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if ($locator->{test_availability}) { |
if ($locator->{test_availability}) { |
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$locator->{status}->{availability} = $storage->testAvailability(); |
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if ( !$storage->testAvailability() ) { |
if ( !$storage->testAvailability() ) { |
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$logger->error( "$log_prefix is not available" ); |
$logger->error( "$log_prefix: testAvailability failed" ); |
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return; |
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} |
} |
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} |
} |
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# should we test integrity of the storage before using it? |
# should we test integrity of the storage before using it? |
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if ($locator->{test_integrity}) { |
if ($locator->{status}->{availability} && $locator->{test_integrity}) { |
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#return unless $storage->testIntegrity(); |
#return unless $storage->testIntegrity(); |
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$locator->{status}->{integrity} = $storage->testIntegrity(); |
$locator->{status}->{integrity} = $storage->testIntegrity(); |
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# actions if integrity fails |
# actions if integrity fails |
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if (!$locator->{status}->{integrity}) { |
if (!$locator->{status}->{integrity}) { |
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$logger->error( "testIntegrity failed on $log_prefix" ); |
$logger->error( "$log_prefix: testIntegrity failed" ); |
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print "Try a $locator->{name}.deploySchema()? (y/n) "; |
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my $res = <STDIN>; |
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if ($res =~ m/y/i) { |
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$storage->deploySchema(); |
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} |
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} |
} |
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} |
} |
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# don't connect right here, do an implicit connect on (later) usage |
# don't connect right here, do an implicit connect on (later) usage |
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# maybe set ->{meta}->{connectmethod} = "connect" here |
# maybe set ->{meta}->{connectmethod} = "connect" here |
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#return unless $storage->connect(); |
#return unless $storage->connect(); |
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$storage->connect(); |
$storage->connect() if $locator->{status}->{integrity}; |
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# should we check emptyness? |
# should we check emptyness? |
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if ( $locator->{test_emptyness} && $locator->{status}->{integrity} ) { |
if ($locator->{status}->{availability} && $locator->{test_emptyness}) { |
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#print "test empty", "\n"; |
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if ( !@{$storage->getChildNodes()} ) { |
if ( !@{$storage->getChildNodes()} ) { |
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$locator->{status}->{empty} = 1; |
$locator->{status}->{empty} = 1; |
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$logger->warning( "$log_prefix is empty"); |
$logger->warning( "$log_prefix: Storage is empty."); |
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#return; |
#return; |
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} |
} |
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} |
} |
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# expand logging? |
# expand logging? |
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if ( $locator->{logger} && $locator->{status}->{integrity} ) { |
if ( $locator->{status}->{integrity} && $locator->{logger} ) { |
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# expand logging (to Tangram-Database) |
# expand logging (to Tangram-Database) |
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# TODO: |
# TODO: |
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# - move configuration data from this code to db_config somehow |
# - move configuration data from this code to db_config somehow |
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} |
} |
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#$self->{storage}->{$name} = $storage; |
#$self->{storage}->{$name} = $storage; |
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#print "add storage: $name", "\n"; |
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$self->addStorage($name, $storage); |
$self->addStorage($name, $storage); |
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return 1; |
return 1; |
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sub initStorages { |
sub initStorages { |
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my $self = shift; |
my $self = shift; |
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foreach (keys %{$self->{locator}}) { |
foreach (keys %{$self->{locator}}) { |
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#print $_, "\n"; |
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$self->initStorage($_); |
$self->initStorage($_); |
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} |
} |
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} |
} |
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} |
} |
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1; |
1; |
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__END__ |