Another option is XML::Rules:

use strict;
use warnings;

use XML::Rules;
use Data::Dumper qw(Dumper);

my $xml = <<XML;
<object type="Dog" >
  <property name="id" value="0" />
  <property name="name" value="REX" />
  <property name="status" value="alive" />
  <property name="mode" value="owned" />
  <property name="dog_breed_id" value="0" />
  <property name="dog_breed_name" value="Husky" />
  <property name="capacity" value="105" />
  <property name="size" value="big" />
  <property name="location" value="canada" />
</object >
XML

my @rules = (
  "^object" => sub { $_[1]{type} eq 'Dog' },
  object => sub {
    print join("|", @{$_[1]}{qw(name dog_breed_id dog_breed_name)}),"\
+n";
    return;
  },
  property => sub {$_[1]->{name} => $_[1]->{value}},
);
my $xr = XML::Rules->new( rules => \@rules, stripspaces => 2 );
$xr->parse($xml);
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