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## ---------------------------------------------------------------------- |
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## $Id: Process.pm,v 1.3 2003/06/06 03:14:16 joko Exp $ |
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## ---------------------------------------------------------------------- |
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## $Log: Process.pm,v $ |
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## Revision 1.3 2003/06/06 03:14:16 joko |
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## enhanced database connection bootstrapping: |
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## - boot default ones |
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## - boot-on-demand |
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## - protection for multiple redundant connections |
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## |
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## Revision 1.2 2003/03/27 15:43:05 joko |
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## minor fix: new comment/remark |
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## |
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## Revision 1.1 2003/02/20 18:41:48 joko |
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## + initial commit |
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## |
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## ---------------------------------------------------------------------- |
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|
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|
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=pod |
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|
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This could also be called App::Component, App::Bean or whatever. |
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Since it conducts various things of the OEF framework, |
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it should probably be better renamed to OEF::App::Xyz, hmmm!? |
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OEF::App::Bean? OEF::App::Bimbo? Yakka and Bimbo... |
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|
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=cut |
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|
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|
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package App::Process; |
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|
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use strict; |
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use warnings; |
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|
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use base qw( |
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DesignPattern::Object |
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DesignPattern::Logger |
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); |
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|
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use Data::Dumper; |
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|
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use shortcuts qw( now ); |
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|
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|
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# --------------------------------------------------- main ------------ |
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DesignPattern::Object->log_basic("Package " . __PACKAGE__ . " loaded."); |
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|
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|
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sub constructor { |
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my $self = shift; |
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|
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$self->log( __PACKAGE__ . "->constructor", 'info'); |
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#$self->log( "INIT", 'info'); |
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|
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# trace |
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#print Dumper($self); |
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#exit; |
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|
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# just boot database called "oefcore" |
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# TODO: REVIEW: just boot if not booted yet..... |
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# FIXME: this is hardcoded! |
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#$self->{boot} = BizWorks::Boot->new( use_databases => [qw( oefcore )] ); |
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#$self->{app}->{use_databases} =|| [qw( oefcore )]; |
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$self->_bootDatabases(); |
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|
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# if no "guid" is given .... |
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if (!$self->{guid}) { |
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|
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# ... create fresh task-object, ... |
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$self->{TASK} = Task->new( |
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stamp => now(), |
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#context => , |
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); |
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$self->{app}->{storage}->{oefcore}->insert($self->{TASK}); |
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|
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=pod |
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# ... create fresh report-object, ... |
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$self->{REPORT} = Report->new( |
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stamp => now(), |
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#context => , |
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); |
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$self->{app}->{storage}->{oefcore}->insert($self->{REPORT}); |
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|
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# ... link them together |
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=cut |
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|
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# ... and (finally) assign the Task's GUID to an object attribute here |
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$self->{guid} = $self->{TASK}->{guid}; |
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|
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} else { |
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|
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# load context from (resumed) task |
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# FIXME: move this to OEF::Component::Task::Persistable |
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my $task = $self->{app}->{storage}->{oefcore}->getObjectByGuid($self->{guid}, { classname => 'Task' }); |
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$self->{_context_raw} = $task->{context}; |
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|
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} |
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|
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|
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} |
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|
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|
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sub _check { |
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my $self = shift; |
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if (!$self->getGuid()) { |
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return 1; |
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} |
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} |
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|
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sub perform { |
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my $self = shift; |
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|
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return if ($self->skip("task has no guid", $self->_check())); |
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|
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#print Dumper($self); |
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#exit; |
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|
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$self->log("task " . $self->getGuid() . " starting."); |
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$self->{TASK}->{begin} = now(); |
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$self->run() if $self->can('run'); |
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#$self->_run(); |
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$self->{TASK}->{end} = now(); |
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$self->log("task " . $self->getGuid() . " finished."); |
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} |
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|
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sub getGuid { |
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my $self = shift; |
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return $self->{guid}; |
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} |
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|
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sub _bootDatabases { |
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my $self = shift; |
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|
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# re-enabled as of 2003-05-16: Now accepts db-keys via method-args again! |
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my $dbkeys = shift; |
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|
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#my $dbkeys; |
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my $dbcfg; |
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|
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# A - Build list of db-keys to boot |
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|
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# FIXME: CACHE THIS! JUST BOOT STORAGES INTO CONTAINER IF NOT ALREADY DONE! |
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# WATCH OUT FOR GLOBAL USED RESOURCES! |
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if (not ref $self->{DSC} eq 'Data::Storage::Container') { |
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$self->{DSC} = DesignPattern::Object->fromPackage('Data::Storage::Container'); |
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} |
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|
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# Check if database keys were specified explicitely |
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# as default inside the application container ... |
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# new of 2003-05-16: Just do this if no dbkeys have been passed in via args. |
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$dbkeys ||= $self->_get_dbkeys_app_defaults(); |
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|
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# ... if yes, just boot specified databases... |
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if ($dbkeys) { |
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|
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$self->log("Using database(s): " . join(', ', @{$dbkeys}), 'info'); |
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foreach (@$dbkeys) { |
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$dbcfg->{$_} = $self->{app}->{config}->{databases}->{$_}; |
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} |
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|
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# ... otherwise boot all databases. |
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} else { |
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$self->log("Using all databases.", 'info'); |
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$dbcfg = $self->{app}->{config}->{databases}; |
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} |
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|
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|
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# B - Propagate stuff to application -config and -resource slots etc. |
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# TODO: refactor: abstract this out |
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|
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# B.1 - Initialize config |
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foreach (keys %$dbcfg) { |
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$self->{DSC}->addConfig($_, $dbcfg->{$_}); |
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} |
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|
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# B.2 - Initialize resources |
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$self->{DSC}->initLocators(); |
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$self->{DSC}->initStorages(); |
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|
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# B.3 - Establish symbols inside the application container |
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# as references to the storage handle instances inside the |
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# storage container singleton. |
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# In other words: spread the refs |
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# FIXME: This should be cleared up somehow! ;-) |
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foreach (keys %{$self->{DSC}->{storage}}) { |
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$self->{app}->{storage}->{$_} = $self->{DSC}->{storage}->{$_}; |
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} |
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|
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} |
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|
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sub _get_dbkeys_app_defaults { |
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my $self = shift; |
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my $dbkeys; |
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if (my $dbkey_raw = $self->{app}->{use_databases}) { |
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if (ref $dbkey_raw eq 'ARRAY') { |
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$dbkeys = $dbkey_raw; |
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} else { |
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#$self->{app}->{instance}->_bootDatabases(); |
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my @dbkeys = split(/,\s|,/, $dbkey_raw); |
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#$self->_bootDatabases(\@dbkeys); |
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$dbkeys = \@dbkeys; |
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} |
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} |
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return $dbkeys; |
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} |
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|
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sub _shutdownDatabases { |
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my $self = shift; |
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foreach my $dbkey (keys %{$self->{app}->{storage}}) { |
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#print "SHUTDOWN $dbkey", "\n"; |
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#print Dumper($self->{app}->{storage}->{$dbkey}); |
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my $handle = $self->{app}->{storage}->{$dbkey}; |
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#print ref $handle, "\n"; |
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#next if not $handle or not ref $handle or ref($handle) =~ m/(ARRAY|HASH)/; |
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next if not $handle or not ref $handle or ref($handle) !~ m/(Data::Storage|DBI)/; |
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$handle->disconnect(); |
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} |
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} |
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|
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#=pod |
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sub DESTROY { |
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my $self = shift; |
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$self->_shutdownDatabases(); |
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} |
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#=cut |
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|
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|
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sub activate_resources { |
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my $self = shift; |
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my $args = shift; |
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$self->_bootDatabases($args); |
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} |
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|
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sub resource_is_active { |
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my $self = shift; |
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my $key = shift; |
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# FIXME: Enhance this! |
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#print "key: $key", "\n"; |
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#print Dumper($self->{DSC}->{storage}); |
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return 1 if exists $self->{DSC}->{storage}->{$key}; |
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} |
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|
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1; |
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__END__ |
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