libs/Data/Container.pm

################################################
#
#  $Id: Container.pm,v 1.1 2002/11/17 06:20:41 joko Exp $
#
#  $Log: Container.pm,v $
#  Revision 1.1  2002/11/17 06:20:41  joko
#  + initial check in
#
#
################################################

package Data::Container;

use strict;
use warnings;

# get logger instance
my $logger = Log::Dispatch::Config->instance;

use libp;
use Data::Dumper;


sub new {
  my $invocant = shift;
  my $class = ref($invocant) || $invocant;

  # get constructor arguments
  my @args = ();
  @_ && (@args = @_);
  $logger->debug( __PACKAGE__ . "->new( @args )" );

  my $self = { @_ };
  return bless $self, $class;
}

sub addConfig {
  my $self = shift;
  my $name = shift;
  my $config = shift;
  $self->{config}->{$name} = $config;
}

sub addConfigByDsn {
  my $self = shift;
  my $name = shift;
  my $dsn = shift;
  
  # HACK: assume DBI as default type for now
  # TODO: guess type from dsn
  my $type = "DBI";
  
  $self->addConfig($name, { type => $type, dsn => $dsn });
}

sub initLocator {
  my $self = shift;
  my $name = shift;
  my $db_config = $self->{config}->{$name};

  $logger->debug( __PACKAGE__ . "->initLocator( db_config $db_config )" );

  my $cfg_locator = {};
  
  # set default settings, if any
  my $default = deep_copy($self->{config}->{_default});
  foreach (keys %$default) {
    $cfg_locator->{$_} = $default->{$_};
  }
  
  # name it
  $cfg_locator->{name} = $name;
  
  # merge in specific settings
  foreach (keys %$db_config) {
    $cfg_locator->{$_} = $db_config->{$_};
  }
  
  # HACK: transfer dsn from main to dbi settings
  $cfg_locator->{dbi}->{dsn} = $cfg_locator->{dsn} if $cfg_locator->{dsn};

  # HACK: set classnames empty if none given from config
  $cfg_locator->{classnames} = [] if !$cfg_locator->{classnames};

  # HACK: set errorhandler if dbi settings are present
  $cfg_locator->{dbi}->{HandleError} = \&_dbErrorHandler if $cfg_locator->{dbi};

  # create new locator object
  $self->{locator}->{$name} = Data::Storage::Locator->new( $cfg_locator );

}

sub initLocators {
  my $self = shift;
  foreach (keys %{$self->{config}}) {
    $self->initLocator($_, $self->{config}->{$_}) if !/^_/;
  }
  #print "locs: ", Dumper($self->{locator});
}

sub getLocator {
  my $self = shift;
  my $name = shift;
  return $self->{locator}->{$name};
}

sub initStorage {
  my $self = shift;
  my $name = shift;

  my $locator = $self->getLocator($name);
  $logger->info( __PACKAGE__ . " is booting storage declared by locator \"$name\"" );

  my $storage = Data::Storage->new($locator);

  my $log_prefix = __PACKAGE__ . "->initStorage: ";
  $log_prefix .= "dsn=\"$self->{locator}->{$name}->{dsn}\"" if $self->{locator}->{$name}->{dsn};

  # should we test availability of the storage before using it?
  if ($locator->{test_availability}) {
    if ( !$storage->testAvailability() ) {
      $logger->error( "$log_prefix is not available" );
      return;
    }
  }
          
  # should we test integrity of the storage before using it?
  if ($locator->{test_integrity}) {
    #return unless $storage->testIntegrity();
    $locator->{status}->{integrity} = $storage->testIntegrity();
    # actions if integrity fails
    if (!$locator->{status}->{integrity}) {
      $logger->error( "testIntegrity failed on $log_prefix" );
      print "Try a $locator->{name}.deploySchema()? (y/n) ";
      my $res = <STDIN>;
      if ($res =~ m/y/i) {
        $storage->deploySchema();
      }
    }
  }

  # try to connect...
  # TODO:
  # don't connect right here, do an implicit connect on (later) usage
  # maybe set ->{meta}->{connectmethod} = "connect" here
  #return unless $storage->connect();
  $storage->connect();

  # should we check emptyness?
  if ( $locator->{test_emptyness} && $locator->{status}->{integrity} ) {
    if ( !@{$storage->getChildNodes()} ) {
      $locator->{status}->{empty} = 1;
      $logger->warning( "$log_prefix is empty");
      #return;
    }
  }

  # expand logging?
  if ( $locator->{logger} && $locator->{status}->{integrity} ) {
    # expand logging (to Tangram-Database)
    # TODO:
    # - move configuration data from this code to db_config somehow
    # - do complete handling of this stuff in Data::Storage::* also
    # - just leave a simple on/off-trigger here and/or 
    # - make it optionally configurable via e.g. get/set-methods
    #    to satisfy "manual"-mode instead of "config"-mode
    # - (re-)add hierarchical logging (each event may have a parent)
    no strict;
    my $creator = sub { return new SystemEvent; };
    use strict;
    $storage->addLogDispatchHandler("Tangram11", "Log::Dispatch::Tangram", $logger, $creator);
    #$storage_left->addLogDispatchHandler("Tangram11", "Log::Dispatch::Tangram", $logger);
  }

  $self->{storage}->{$name} = $storage;

  return 1;
  
}

sub initStorages {
  my $self = shift;
  foreach (keys %{$self->{locator}}) {
    $self->initStorage($_);
  }
}

sub _dbErrorHandler {
  my $message_db = shift;
  # get logger instance
  #my $logger = Log::Dispatch::Config->instance;
  #$logger->log(level => 'error', message => "Tangram DBI-Error: $message");
  my $message_log = "DBI-Error []: $message_db";
  print STDERR $message_log, "\n";
  #$logger->error( $message_log );
  $logger->log_to( name => 'file', level => 'error', message => $message_log);
  return 1;
}

1;
1	joko	1.1	################################################
2			#
3	joko	1.2	# $Id: Container.pm,v 1.1 2002/11/17 06:20:41 joko Exp $
4			#
5			# $Log: Container.pm,v $
6			# Revision 1.1 2002/11/17 06:20:41 joko
7			# + initial check in
8	joko	1.1	#
9			#
10			################################################
11
12			package Data::Container;
13
14			use strict;
15			use warnings;
16
17			# get logger instance
18			my $logger = Log::Dispatch::Config->instance;
19
20			use libp;
21			use Data::Dumper;
22
23
24			sub new {
25			my $invocant = shift;
26			my $class = ref($invocant) \|\| $invocant;
27
28			# get constructor arguments
29			my @args = ();
30			@_ && (@args = @_);
31			$logger->debug( __PACKAGE__ . "->new( @args )" );
32
33			my $self = { @_ };
34			return bless $self, $class;
35			}
36
37			sub addConfig {
38			my $self = shift;
39			my $name = shift;
40			my $config = shift;
41			$self->{config}->{$name} = $config;
42			}
43
44			sub addConfigByDsn {
45			my $self = shift;
46			my $name = shift;
47			my $dsn = shift;
48
49			# HACK: assume DBI as default type for now
50			# TODO: guess type from dsn
51			my $type = "DBI";
52
53			$self->addConfig($name, { type => $type, dsn => $dsn });
54			}
55
56			sub initLocator {
57			my $self = shift;
58			my $name = shift;
59			my $db_config = $self->{config}->{$name};
60
61			$logger->debug( __PACKAGE__ . "->initLocator( db_config $db_config )" );
62
63			my $cfg_locator = {};
64
65			# set default settings, if any
66			my $default = deep_copy($self->{config}->{_default});
67			foreach (keys %$default) {
68			$cfg_locator->{$_} = $default->{$_};
69			}
70
71			# name it
72			$cfg_locator->{name} = $name;
73
74			# merge in specific settings
75			foreach (keys %$db_config) {
76			$cfg_locator->{$_} = $db_config->{$_};
77			}
78
79			# HACK: transfer dsn from main to dbi settings
80			$cfg_locator->{dbi}->{dsn} = $cfg_locator->{dsn} if $cfg_locator->{dsn};
81
82			# HACK: set classnames empty if none given from config
83			$cfg_locator->{classnames} = [] if !$cfg_locator->{classnames};
84
85			# HACK: set errorhandler if dbi settings are present
86			$cfg_locator->{dbi}->{HandleError} = \&_dbErrorHandler if $cfg_locator->{dbi};
87
88			# create new locator object
89			$self->{locator}->{$name} = Data::Storage::Locator->new( $cfg_locator );
90
91			}
92
93			sub initLocators {
94			my $self = shift;
95			foreach (keys %{$self->{config}}) {
96			$self->initLocator($_, $self->{config}->{$_}) if !/^_/;
97			}
98			#print "locs: ", Dumper($self->{locator});
99			}
100
101			sub getLocator {
102			my $self = shift;
103			my $name = shift;
104			return $self->{locator}->{$name};
105			}
106
107			sub initStorage {
108			my $self = shift;
109			my $name = shift;
110
111			my $locator = $self->getLocator($name);
112			$logger->info( __PACKAGE__ . " is booting storage declared by locator \"$name\"" );
113
114			my $storage = Data::Storage->new($locator);
115
116			my $log_prefix = __PACKAGE__ . "->initStorage: ";
117			$log_prefix .= "dsn=\"$self->{locator}->{$name}->{dsn}\"" if $self->{locator}->{$name}->{dsn};
118
119			# should we test availability of the storage before using it?
120			if ($locator->{test_availability}) {
121			if ( !$storage->testAvailability() ) {
122			$logger->error( "$log_prefix is not available" );
123			return;
124			}
125			}
126
127			# should we test integrity of the storage before using it?
128			if ($locator->{test_integrity}) {
129			#return unless $storage->testIntegrity();
130			$locator->{status}->{integrity} = $storage->testIntegrity();
131			# actions if integrity fails
132			if (!$locator->{status}->{integrity}) {
133			$logger->error( "testIntegrity failed on $log_prefix" );
134			print "Try a $locator->{name}.deploySchema()? (y/n) ";
135			my $res = <STDIN>;
136			if ($res =~ m/y/i) {
137			$storage->deploySchema();
138			}
139			}
140			}
141
142			# try to connect...
143			# TODO:
144			# don't connect right here, do an implicit connect on (later) usage
145			# maybe set ->{meta}->{connectmethod} = "connect" here
146			#return unless $storage->connect();
147			$storage->connect();
148
149			# should we check emptyness?
150			if ( $locator->{test_emptyness} && $locator->{status}->{integrity} ) {
151			if ( !@{$storage->getChildNodes()} ) {
152			$locator->{status}->{empty} = 1;
153			$logger->warning( "$log_prefix is empty");
154			#return;
155			}
156			}
157
158			# expand logging?
159			if ( $locator->{logger} && $locator->{status}->{integrity} ) {
160			# expand logging (to Tangram-Database)
161			# TODO:
162			# - move configuration data from this code to db_config somehow
163			# - do complete handling of this stuff in Data::Storage::* also
164			# - just leave a simple on/off-trigger here and/or
165			# - make it optionally configurable via e.g. get/set-methods
166			# to satisfy "manual"-mode instead of "config"-mode
167			# - (re-)add hierarchical logging (each event may have a parent)
168			no strict;
169			my $creator = sub { return new SystemEvent; };
170			use strict;
171			$storage->addLogDispatchHandler("Tangram11", "Log::Dispatch::Tangram", $logger, $creator);
172			#$storage_left->addLogDispatchHandler("Tangram11", "Log::Dispatch::Tangram", $logger);
173			}
174
175			$self->{storage}->{$name} = $storage;
176
177			return 1;
178
179			}
180
181			sub initStorages {
182			my $self = shift;
183			foreach (keys %{$self->{locator}}) {
184			$self->initStorage($_);
185			}
186			}
187
188			sub _dbErrorHandler {
189			my $message_db = shift;
190			# get logger instance
191			#my $logger = Log::Dispatch::Config->instance;
192			#$logger->log(level => 'error', message => "Tangram DBI-Error: $message");
193			my $message_log = "DBI-Error []: $message_db";
194			print STDERR $message_log, "\n";
195			#$logger->error( $message_log );
196			$logger->log_to( name => 'file', level => 'error', message => $message_log);
197			return 1;
198			}
199
200			1;
MailToCvsAdmin">MailToCvsAdmin	ViewVC Help
Powered by ViewVC 1.1.26