/usr/local/CPAN/Introspector/Introspector/JavaGenerator.pm
package Introspector::JavaGenerator;
###############################################################################
#
# MODULE : JavaGenerator.pm
# Author : James Michael DuPont
# Generation : Second Generation
# Status : To Review and Document
# Category : Meta Programming Generator
# Description : Generates Java Code from Object Description
#
#
# LICENCE STATEMENT
# This file is part of the GCC XML Node Introspector Project
# Copyright (C) 2001-2002 James Michael DuPont
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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
# Or see http://www.gnu.org/licenses/gpl.txt
###############################################################################
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(TranslatePackagesToJava);
use strict;
use warnings;
use File::Path;
use Introspector::TranslateClasses; # use the basic functions for translation of the classes, just do it differently
use Introspector::MetaType;
use Carp qw(confess);
sub TranslatePackageToJava($$)
{
my $repository = shift;
my $type = shift;
my $package_name = TranslateName($repository,$type); # the name of the package
my $typeinfo = Introspector::dynload::lookup($repository,$type);
my $package = CreatePackageJava ($repository,$type,$typeinfo,$package_name); # create load and test the package
mkpath "./output/java/org/gnu/gcc/introspector/";
open JAVAOUT,">./output/java/org/gnu/gcc/introspector/$package_name.java";
print JAVAOUT "
/**
* Package $package_name part of the GCC Introspector Project
* Copyright James Michael DuPont 2001
* Licenced under the Perl Artistic Licence
**/
";
print JAVAOUT "package org.gnu.gcc.introspector;\n";
print JAVAOUT "import java.util.*;\n";
print JAVAOUT "import org.gnu.gcc.introspector.*;\n";
print JAVAOUT $package;
close JAVAOUT;
# CreateEventHandlersJava ($type,$typeinfo,$package);
# $package->generate_code(); # this creates the code on the fly using closures
}
#############################################################
sub Class ($$)
{
my $repository = shift;
my $name = shift;
return "
/**
* class part of the GCC Introspector Project
*
**/
public class $name";
};
sub InterfaceClass($$) {
my $repository = shift;
my $name = shift;
return "
/**
* interface part of the GCC Introspector Project\n *
**/
public interface $name";
};
sub Inherits($$)
{
my $repository = shift;
my $name = shift;
#$package\.
return " extends $name"; # use the extends
# return "public $name ihrts_$name;\n"; #
};
sub ImplementsInterface ($$)
{
my $repository = shift;
my $name = shift;
return " implements $name\n"; # Put in the header
};
sub Member ($$$$)
{
my $repository = shift;
my $name = shift;
my $type = shift;
my $comment = shift;
confess "type missing " if not $type;
confess "name missing " if not $type;
$type = TypeLookup($repository,$type); # if the type was not set...
print "MEMBER public $type $name;//$comment\n";
return
"
\t/**
\t* Attribute of name $name
\t* Attribute of type $type
\t* $comment
\t**/
\tprivate $type $name;//$comment
\tpublic void set" . uc($name) . "($type _". $name .") {
\t\t$name = _" . $name . ";
\t}
\tpublic $type get" . uc($name) . "() {
\t\treturn $name;
\t}
";
};
#############################################################
# here we will try and translate between two object models
sub CreateEventHandlersJava($$$$)
{
my $repository = shift;
my $type = shift;
my $typeinfo = shift;
my $pack = shift; # the package object
if ($repository->{eventhandler}{$type})
{
map
{
my $eventtype = $_;
my $code_str = $repository->{eventhandler}{$type}{$eventtype};
my $code_str_withself = sub { # VERY DANGEROUS!
no strict;
my $self = Class::Contract::self; # HA!
$code_str->($self,@_); # add an extra parmeter
};
my $method_name = $repository->{event_types}{$eventtype}{"MethodName"}; # the type of event
print "Going to add method $method_name " . $code_str . "to package $type\n";
$pack->add_method(new MetaMethod($repository,
$method_name, # the name of the
$code_str_withself #
)
);
} keys %{$repository->{eventhandler}{$type}};
}
}
sub CreatePackageJava($$$$)
{
my $repository = shift;
my $id = shift; # the name id of the object
my $typeobj = shift; # the type information collected from the nodes
my $package_name = shift;
# the class is created here
my $code = "";
# is it an interface or a class?
my $pack = "";
if ($typeobj->{isinterface})
{
$pack = InterfaceClass($repository,$package_name);; # create a class
}
else
{
$pack = Class($repository,$package_name);; # create a class
}
# variables that hold the following
my $members = "";
my $methods = "";
my $inherits = "";
# here we create inheritance
########################################################################################
# the names of the fields
########################################################################################
my @fieldnames = Introspector::dynload::GetFieldNames($repository,$id); # check the field names from the last run
my %parentsseen; # for multiple inheritance
map {
my $totype = $_;
if (not $parentsseen{$totype})
{
$inherits .= Inherits($repository,TranslateName($repository,$totype));
$parentsseen{$totype}++;
}
}
@{$typeobj->{inherits}}; # traverse all the inheritance
# traverse the interfaces
my @tovisit;
map {
my $totype = $_;
if (not $parentsseen{$totype})
{
#$inherits .= ImplementsInterface($repository,TranslateName($repository,$totype));
push @tovisit,TranslateName($repository,$totype);
$parentsseen{$totype}++;
}
}
@{$typeobj->{interface}}; # traverse all the inheritance
# to visit
if (@tovisit)
{
$inherits .= ImplementsInterface($repository,
join(
","
,
@tovisit
)
);
}
# add handling for associations
$members .= " ///////////////////////////////////////\n //associations";
######################################################################
my $rFields = Introspector::dynload::CalculateOptionalFields ($repository,$id);
map {
my $fieldname = $_;
# now we check if the attribute is in all objects, or is optional
$members .= Member($repository,
$fieldname,
"String",
"Mandatory: No Type"
);
} keys %{
$rFields->{vals}{mandatory}
};
########################################################################
map {
my $fieldname = $_;
$members .= Member($repository,$fieldname,"String","Option:No Type");
} keys %{$rFields->{vals}{optional}};
#########################################################################
map {
my $fieldname = $_;
my $fieldtype = $rFields->{refs}{single_type}{$_};
$members .= Member($repository,$fieldname,TypeLookup($repository,$fieldtype),"Single_Type:$fieldtype");
} keys %{$rFields->{refs}{single_type}};
# the pointer types, the go to one type, but are optional
map {
my $fieldname = $_;
my $fieldtype = $rFields->{refs}{optional_type}{$fieldname};
confess "Missing Fieldname $fieldname" if not $fieldname;
confess "Missing FieldType $fieldtype" if not $fieldtype;
$members .= Member($repository,
$fieldname,
$fieldtype,
"Optional Type"
); # "$package\.node_"
} keys %{$rFields->{refs}{optional_type}};
#########################################################################
# all the pointers that are multiple types
map {
my $fieldname = $_;
my $fieldtype = $rFields->{refs}{multi_type}{$_};
my $types = join (",",(keys %{$fieldtype}));
$members .= Member($repository,$fieldname,$repository->{java}{baseclass},"MultiType : $types");
} keys %{$rFields->{refs}{multi_type}};
#########################################################################
# these are optionally filled out
map {
my $fieldname = $_;
my $fieldtype = $rFields->{refs}{optional_multi_type}{$_};
my $types = join (",",(keys %{$fieldtype}));
$members .= Member($repository,$fieldname,$repository->{java}{baseclass},"Optional Multi Type : $types");
} keys %{$rFields->{refs}{optional_multi_type}};
#########################################################################
#########################################################################
return "$pack $inherits {\n" . "\n". $members . "\n". $methods . "\n}\n" ; # all the code at once!
}
sub TranslatePackagesToJava($)
{
my $repository = shift;
$repository->{java}->{package} ="org.gnu.gcc.introspector";
$repository->{java}->{baseclass} = TypeRef($repository,"base");
# the standard package
TranslatePackagesAbstract($repository, \&TranslatePackageToJava);
};
# BeanInfo
#c:/downloads/netbeans-src/beans/src/org/netbeans/modules/beans/resources/templates/
#BeanInfoNoIcon.template
#import java.awt.Image;
#import java.beans.*;
#contained class
#public static class DefaultBeanInfo extends SimpleBeanInfo {
# private static BeanDescriptor descr;
# private static Image icon;
# private static Image icon32;
# ResourceBundle bundle = NbBundle.getBundle(IndentEngineBeanInfo.class);
# private static PropertyDescriptor[] prop;
# descr.setDisplayName (bundle.getString("LAB_IndentEngineDefault"));
# descr.setShortDescription (bundle.getString("HINT_IndentEngineDefault"));
# public Image getIcon (int type) {
# public PropertyDescriptor[] getPropertyDescriptors () {
# public BeanDescriptor getBeanDescriptor () {
# public BeanInfo[] getAdditionalBeanInfo () {
# public Image getIcon(int type) {
# if (icon == null) {
# icon = loadImage("/org/netbeans/core/resources/indentEngines.gif"); // NOI18N
# icon32 = loadImage("/org/netbeans/core/resources/indentEngines32.gif"); // NOI18N
# }
# if ((type == java.beans.BeanInfo.ICON_COLOR_16x16) || (type == java.beans.BeanInfo.ICON_MONO_16x16))
# return icon;
# else
# return icon32;
# }
# Version
1;