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package EntityModel::Error; |
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$EntityModel::Error::VERSION = '0.016'; |
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use strict; |
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use warnings; |
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=head1 NAME |
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EntityModel::Error - generic error object |
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=head1 VERSION |
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Version 0.016 |
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=head1 DESCRIPTION |
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Uses some overload tricks and C< AUTOLOAD > to allow chained method calls without needing to wrap in eval. |
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=head1 METHODS |
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=cut |
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use EntityModel::Log ':all'; |
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use Data::Dumper; |
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use overload |
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'bool' => sub { |
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0
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my $self = shift; |
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logWarning('Error: [%s], chain was [%s]', |
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Data::Dumper::Dumper($self->{message}), |
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join(',', map { |
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$_->{method} // 'unknown' |
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} @{ $self->{chain} }) |
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); |
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0
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return 0; |
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}, |
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'ne' => sub { 1 }, |
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'eq' => sub { 0 }, |
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'fallback' => 1; |
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=head2 new |
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Instantiate a new L object. Takes the following parameters: |
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=over 4 |
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=item * $parent - the parent error which raised this one |
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=item * $msg - error message, string |
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=item * $opt (optional) - hashref of options |
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=back |
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=cut |
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sub new { |
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my ($class, $parent, $msg, $opt) = @_; |
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$msg = $parent if @_ < 3; |
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$opt ||= { }; |
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logWarning($msg) if $opt->{warning}; |
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logError($msg) if $opt->{error}; |
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logInfo("Had error [%s] from %S", $msg); |
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0
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my $self = bless { |
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message => $msg, |
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parent => $parent, |
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chain => [ ] |
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}, $class; |
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0
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return $self; |
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} |
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73
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our $AUTOLOAD; |
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75
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sub AUTOLOAD { |
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my $self = shift; |
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my ($method) = $AUTOLOAD; |
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0
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$method =~ s/^.*:://g; |
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0
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return if $method eq 'DESTROY'; |
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81
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logWarning('Bad method [%s] called in error, original message [%s] with object [%s]', |
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$method, |
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$self->{message}, |
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$self->{parent} |
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0
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) unless eval { $self->{parent}->can($method) }; |
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0
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86
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87
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0
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push @{$self->{chain}}, {method => $method }; |
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0
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return $self; |
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} |
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91
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1; |
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93
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__END__ |