[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / Parser / XML / XMI / Rational.pm

package SQL::Translator::Parser::XML::XMI::Rational;

# -------------------------------------------------------------------
# $Id: Rational.pm,v 1.4 2003-10-06 13:29:45 grommit Exp $
# -------------------------------------------------------------------
# Copyright (C) 2003 Mark Addison <mark.addison@itn.co.uk>,
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307  USA
# -------------------------------------------------------------------

=head1 NAME

SQL::Translator::Parser::XML::XMI::Rational - Create Schema using Rational's UML
Data Modeling Profile.

=cut

use strict;
use SQL::Translator::Parser::XML::XMI;
use SQL::Translator::Utils 'debug';

# Set the parg for the conversion sub then use the XMI parser
sub parse {
    my ( $translator ) = @_;
    my $pargs = $translator->parser_args;
	$pargs->{classes2schema} = \&classes2schema;
	return SQL::Translator::Parser::XML::XMI::parse(@_);
}

sub _parameters_in {
	my $params = shift;
	return grep {$_->{kind} ne "return"} @$params;
}

sub classes2schema {
	my ($schema, $classes) = @_;

	foreach my $class (@$classes) {
        next unless $class->{stereotype} eq "Table";

		# Add the table
        debug "Adding class: $class->{name}";
        my $table = $schema->add_table( name => $class->{name} )
            or die "Schema Error: ".$schema->error;

        #
        # Fields from Class attributes
        #
        foreach my $attr ( @{$class->{attributes}} ) {
			next unless $attr->{stereotype} eq "Column"
				or $attr->{stereotype} eq "PK"
				or $attr->{stereotype} eq "FK"
				or $attr->{stereotype} eq "PFK";

			my $ispk =
			    $attr->{stereotype} eq "PK" or $attr->{stereotype} eq "PFK"
				? 1 : 0;
			my %data = (
                name           => $attr->{name},
                data_type      => $attr->{datatype},
                is_primary_key => $ispk,
            );
			$data{default_value} = $attr->{initialValue}
				if exists $attr->{initialValue};
			$data{data_type} = $attr->{_map_taggedValues}{dataType}{dataValue}
				|| $attr->{datatype};
			$data{size} = $attr->{_map_taggedValues}{size}{dataValue};
			$data{is_nullable}=$attr->{_map_taggedValues}{nullable}{dataValue};

            my $field = $table->add_field( %data ) or die $schema->error;
            $table->primary_key( $field->name ) if $data{'is_primary_key'};
		}

		#
		# Constraints and indexes from Operations
		#
        foreach my $op ( @{$class->{operations}} ) {
			next unless my $stereo = $op->{stereotype};
			my @fields = map {$_->{name}} grep {$_->{kind} ne "return"} @{$op->{parameters}};
			my %data = (
                name      => $op->{name},
                type      => "",
				fields    => [@fields],
            );

			# Work out type and any other data
			if ( $stereo eq "Unique" ) {
				$data{type} = "UNIQUE";
			}
			elsif ( $stereo eq "PK" ) {
				$data{type} = "PRIMARY_KEY";
			}
			# TODO We need to work out the ref table
			elsif ( $stereo eq "FK" ) {
				$data{type} = "FOREIGN_KEY";
				_add_fkey_refs($class,$op,\%data);
			}

			# Add the constraint or index
			if ( $data{type} ) {
				$table->add_constraint( %data ) or die $schema->error;
			}
			elsif ( $stereo eq "Index" ) {
            	$data{type} = "NORMAL";
				$table->add_index( %data ) or die $schema->error;
			}

		} # Ops loop

    } # Classes loop
}

use Data::Dumper;
sub _add_fkey_refs {
	my ($class,$op,$data) = @_;

	# Find the association ends
	my ($end) = grep { $_->{name} eq $op->{name} } @{$class->{associationEnds}};
	return unless $end;
	# Find the fkey op
	my ($refop) = grep { $_->{name} eq $end->{otherEnd}{name} }
		@{$end->{otherEnd}{participant}{operations}};
	return unless $refop;

	$data->{reference_table} = $end->{otherEnd}{participant}{name};
	$data->{reference_fields} = [ map("$_->{name}", _parameters_in($refop->{parameters})) ];
	return $data;
}

1; #---------------------------------------------------------------------------

__END__

=pod

=head1 SYNOPSIS

  use SQL::Translator;
  use SQL::Translator::Parser::XML::XMI;

  my $translator     = SQL::Translator->new(
      from           => 'XML-XMI-Rational',
      to             => 'MySQL',
      filename       => 'schema.xmi',
      show_warnings  => 1,
      add_drop_table => 1,
  );

  print $obj->translate;

=head1 DESCRIPTION

Translates Schema described using Rational Software's UML Data Modeling Profile.
Finding good information on this profile seems to be very difficult so this
is based on a vague white paper and notes in vendors docs!

Below is a summary of what this parser thinks the profile looks like.

B<Tables> Are classes marked with <<Table>> stereotype.

B<Fields> Attributes stereotyped with <<Column>> or one of the key stereotypes.
Additional info is added using tagged values of C<dataType>, C<size> and
C<nullable>. Default value is given using normal UML default value for the
attribute.

B<Keys> Key fields are marked with <<PK>>, <<FK>> or <<PFK>>. Note that this is
really to make it obvious on the diagram, you must still add the constraints.
(This parser will also automatically add the constraint for single field pkeys
for attributes marked with PK but I think this is out of spec.)

B<Constraints> Stereotyped operations, with the names of the parameters
indicating which fields it applies to. Can use <<PK>>, <<FK>>, <<Unique>> or
<<Index>>.

B<Relationships> You can model the relationships in the diagram and have the
translator add the foreign key constraints for you. The forign keys are defined
as <<FK>> operations as show above. To show which table they point to join the
class to the taget classwith an association where the role names are the names
of the constraints to join.

e.g.

 +------------------------------------------------------+
 |                      <<Table>>                       |
 |                         Foo                          |
 +------------------------------------------------------+
 | <<PK>>     fooID { dataType=INT size=10 nullable=0 } |
 | <<Column>> name { dataType=VARCHAR size=255 }        |
 | <<Column>> description { dataType=TEXT }             |
 +------------------------------------------------------+
 | <<PK>>     pkcon( fooID )                             |
 | <<Unique>> con2( name )                              |
 +------------------------------------------------------+
                           |
                           | pkcon
                           |
                           |
                           |
                           |
                           | fkcon
                           |
 +------------------------------------------------------+
 |                      <<Table>>                       |
 |                         Bar                          |
 +------------------------------------------------------+
 | <<PK>>     barID { dataType=INT size=10 nullable=0 } |
 | <<FK>>     fooID { dataType=INT size=10 nullable=0 } |
 | <<Column>> name  { dataType=VARCHAR size=255 }       |
 +------------------------------------------------------+
 | <<PK>>     pkcon( barID )                            |
 | <<FK>>     fkcon( fooID )                            |
 +------------------------------------------------------+

 CREATE TABLE Foo (
   fooID INT(10) NOT NULL,
   name VARCHAR(255),
   description TEXT,
   PRIMARY KEY (fooID),
   UNIQUE con2 (name)
 );

 CREATE TABLE Bar (
   barID INT(10) NOT NULL,
   fooID INT(10) NOT NULL,
   name VARCHAR(255),
   PRIMARY KEY (fooID),
   FOREIGN KEY fkcon (fooID) REFERENCES Foo (fooID)
 );

=head1 ARGS

=head1 BUGS

=head1 TODO

The Rational profile also defines ways to model stuff above tables such as the
actuall db.

=head1 AUTHOR

Mark D. Addison E<lt>mark.addison@itn.co.ukE<gt>.

=head1 SEE ALSO

perl(1), SQL::Translator::Parser::XML::XMI

=cut
Commit	Line	Data
b2a00f50	1	package SQL::Translator::Parser::XML::XMI::Rational;
	2
	3	# -------------------------------------------------------------------
182bc70c	4	# $Id: Rational.pm,v 1.4 2003-10-06 13:29:45 grommit Exp $
b2a00f50	5	# -------------------------------------------------------------------
	6	# Copyright (C) 2003 Mark Addison <mark.addison@itn.co.uk>,
	7	#
	8	# This program is free software; you can redistribute it and/or
	9	# modify it under the terms of the GNU General Public License as
	10	# published by the Free Software Foundation; version 2.
	11	#
	12	# This program is distributed in the hope that it will be useful, but
	13	# WITHOUT ANY WARRANTY; without even the implied warranty of
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	# General Public License for more details.
	16	#
	17	# You should have received a copy of the GNU General Public License
	18	# along with this program; if not, write to the Free Software
	19	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	20	# 02111-1307 USA
	21	# -------------------------------------------------------------------
	22
	23	=head1 NAME
	24
	25	SQL::Translator::Parser::XML::XMI::Rational - Create Schema using Rational's UML
	26	Data Modeling Profile.
	27
	28	=cut
	29
	30	use strict;
	31	use SQL::Translator::Parser::XML::XMI;
	32	use SQL::Translator::Utils 'debug';
	33
	34	# Set the parg for the conversion sub then use the XMI parser
	35	sub parse {
	36	my ( $translator ) = @_;
	37	my $pargs = $translator->parser_args;
	38	$pargs->{classes2schema} = \&classes2schema;
	39	return SQL::Translator::Parser::XML::XMI::parse(@_);
	40	}
	41
a8ae1e5c	42	sub _parameters_in {
	43	my $params = shift;
	44	return grep {$_->{kind} ne "return"} @$params;
	45	}
	46
b2a00f50	47	sub classes2schema {
	48	my ($schema, $classes) = @_;
	49
	50	foreach my $class (@$classes) {
	51	next unless $class->{stereotype} eq "Table";
	52
	53	# Add the table
	54	debug "Adding class: $class->{name}";
	55	my $table = $schema->add_table( name => $class->{name} )
	56	or die "Schema Error: ".$schema->error;
	57
	58	#
	59	# Fields from Class attributes
	60	#
	61	foreach my $attr ( @{$class->{attributes}} ) {
	62	next unless $attr->{stereotype} eq "Column"
	63	or $attr->{stereotype} eq "PK"
	64	or $attr->{stereotype} eq "FK"
	65	or $attr->{stereotype} eq "PFK";
	66
	67	my $ispk =
	68	$attr->{stereotype} eq "PK" or $attr->{stereotype} eq "PFK"
	69	? 1 : 0;
	70	my %data = (
	71	name => $attr->{name},
	72	data_type => $attr->{datatype},
	73	is_primary_key => $ispk,
	74	);
	75	$data{default_value} = $attr->{initialValue}
	76	if exists $attr->{initialValue};
	77	$data{data_type} = $attr->{_map_taggedValues}{dataType}{dataValue}
	78	\|\| $attr->{datatype};
	79	$data{size} = $attr->{_map_taggedValues}{size}{dataValue};
	80	$data{is_nullable}=$attr->{_map_taggedValues}{nullable}{dataValue};
	81
	82	my $field = $table->add_field( %data ) or die $schema->error;
	83	$table->primary_key( $field->name ) if $data{'is_primary_key'};
	84	}
	85
	86	#
	87	# Constraints and indexes from Operations
	88	#
	89	foreach my $op ( @{$class->{operations}} ) {
	90	next unless my $stereo = $op->{stereotype};
	91	my @fields = map {$_->{name}} grep {$_->{kind} ne "return"} @{$op->{parameters}};
	92	my %data = (
	93	name => $op->{name},
	94	type => "",
	95	fields => [@fields],
	96	);
	97
	98	# Work out type and any other data
	99	if ( $stereo eq "Unique" ) {
	100	$data{type} = "UNIQUE";
	101	}
	102	elsif ( $stereo eq "PK" ) {
	103	$data{type} = "PRIMARY_KEY";
	104	}
	105	# TODO We need to work out the ref table
a8ae1e5c	106	elsif ( $stereo eq "FK" ) {
	107	$data{type} = "FOREIGN_KEY";
	108	_add_fkey_refs($class,$op,\%data);
	109	}
b2a00f50	110
	111	# Add the constraint or index
	112	if ( $data{type} ) {
	113	$table->add_constraint( %data ) or die $schema->error;
	114	}
	115	elsif ( $stereo eq "Index" ) {
	116	$data{type} = "NORMAL";
	117	$table->add_index( %data ) or die $schema->error;
	118	}
	119
b2a00f50	120	} # Ops loop
	121
	122	} # Classes loop
	123	}
	124
a8ae1e5c	125	use Data::Dumper;
	126	sub _add_fkey_refs {
	127	my ($class,$op,$data) = @_;
	128
	129	# Find the association ends
	130	my ($end) = grep { $_->{name} eq $op->{name} } @{$class->{associationEnds}};
a8ae1e5c	131	return unless $end;
	132	# Find the fkey op
	133	my ($refop) = grep { $_->{name} eq $end->{otherEnd}{name} }
	134	@{$end->{otherEnd}{participant}{operations}};
	135	return unless $refop;
	136
	137	$data->{reference_table} = $end->{otherEnd}{participant}{name};
	138	$data->{reference_fields} = [ map("$_->{name}", _parameters_in($refop->{parameters})) ];
	139	return $data;
	140	}
	141
b2a00f50	142	1; #---------------------------------------------------------------------------
	143
	144	__END__
	145
	146	=pod
	147
	148	=head1 SYNOPSIS
	149
	150	use SQL::Translator;
	151	use SQL::Translator::Parser::XML::XMI;
	152
	153	my $translator = SQL::Translator->new(
	154	from => 'XML-XMI-Rational',
	155	to => 'MySQL',
	156	filename => 'schema.xmi',
	157	show_warnings => 1,
	158	add_drop_table => 1,
	159	);
	160
	161	print $obj->translate;
	162
	163	=head1 DESCRIPTION
	164
	165	Translates Schema described using Rational Software's UML Data Modeling Profile.
	166	Finding good information on this profile seems to be very difficult so this
	167	is based on a vague white paper and notes in vendors docs!
	168
	169	Below is a summary of what this parser thinks the profile looks like.
	170
	171	B<Tables> Are classes marked with <<Table>> stereotype.
	172
	173	B<Fields> Attributes stereotyped with <<Column>> or one of the key stereotypes.
	174	Additional info is added using tagged values of C<dataType>, C<size> and
	175	C<nullable>. Default value is given using normal UML default value for the
	176	attribute.
	177
	178	B<Keys> Key fields are marked with <<PK>>, <<FK>> or <<PFK>>. Note that this is
	179	really to make it obvious on the diagram, you must still add the constraints.
	180	(This parser will also automatically add the constraint for single field pkeys
	181	for attributes marked with PK but I think this is out of spec.)
	182
	183	B<Constraints> Stereotyped operations, with the names of the parameters
	184	indicating which fields it applies to. Can use <<PK>>, <<FK>>, <<Unique>> or
	185	<<Index>>.
	186
a8ae1e5c	187	B<Relationships> You can model the relationships in the diagram and have the
	188	translator add the foreign key constraints for you. The forign keys are defined
	189	as <<FK>> operations as show above. To show which table they point to join the
	190	class to the taget classwith an association where the role names are the names
	191	of the constraints to join.
	192
b2a00f50	193	e.g.
	194
	195	+------------------------------------------------------+
	196	\| <<Table>> \|
	197	\| Foo \|
	198	+------------------------------------------------------+
	199	\| <<PK>> fooID { dataType=INT size=10 nullable=0 } \|
	200	\| <<Column>> name { dataType=VARCHAR size=255 } \|
	201	\| <<Column>> description { dataType=TEXT } \|
	202	+------------------------------------------------------+
a8ae1e5c	203	\| <<PK>> pkcon( fooID ) \|
b2a00f50	204	\| <<Unique>> con2( name ) \|
b2a00f50	205	+------------------------------------------------------+
a8ae1e5c	206	\|
	207	\| pkcon
	208	\|
	209	\|
	210	\|
	211	\|
	212	\| fkcon
	213	\|
	214	+------------------------------------------------------+
	215	\| <<Table>> \|
	216	\| Bar \|
	217	+------------------------------------------------------+
	218	\| <<PK>> barID { dataType=INT size=10 nullable=0 } \|
	219	\| <<FK>> fooID { dataType=INT size=10 nullable=0 } \|
	220	\| <<Column>> name { dataType=VARCHAR size=255 } \|
	221	+------------------------------------------------------+
	222	\| <<PK>> pkcon( barID ) \|
	223	\| <<FK>> fkcon( fooID ) \|
	224	+------------------------------------------------------+
b2a00f50	225
	226	CREATE TABLE Foo (
	227	fooID INT(10) NOT NULL,
	228	name VARCHAR(255),
	229	description TEXT,
	230	PRIMARY KEY (fooID),
a8ae1e5c	231	UNIQUE con2 (name)
	232	);
	233
	234	CREATE TABLE Bar (
	235	barID INT(10) NOT NULL,
	236	fooID INT(10) NOT NULL,
	237	name VARCHAR(255),
	238	PRIMARY KEY (fooID),
	239	FOREIGN KEY fkcon (fooID) REFERENCES Foo (fooID)
b2a00f50	240	);
	241
	242	=head1 ARGS
	243
	244	=head1 BUGS
	245
	246	=head1 TODO
	247
a8ae1e5c	248	The Rational profile also defines ways to model stuff above tables such as the
a8ae1e5c	249	actuall db.
b2a00f50	250
	251	=head1 AUTHOR
	252
	253	Mark D. Addison E<lt>mark.addison@itn.co.ukE<gt>.
	254
	255	=head1 SEE ALSO
	256
	257	perl(1), SQL::Translator::Parser::XML::XMI
	258
	259	=cut