Confusion ,XML::SIMPLE with DATA:DUMPER

ultibuzz has asked for the wisdom of the Perl Monks concerning the following question:

Situation: HUGE xml files with lots of informations that are not needed, we talk about millions of rows and lots of GB, and i don't understand , get confused with the dumper output
Example XML file (test.xml)

<BL_DPLI_ENTRY>
    <BL_USER>
        <USERID>22069332</USERID>
        <PHONENO>
            <ENTRY>877465535</ENTRY>
        </PHONENO>
        <PHONENO>
            <ENTRY>86719273704</ENTRY>
        </PHONENO>
        <PHONENO>
            <ENTRY>8671881760</ENTRY>
        </PHONENO>
        <PHONENO>
            <ENTRY>8671969876</ENTRY>
        </PHONENO>
        <ADDRESS>
            <LASTNAME>Müller</LASTNAME>
            <FIRSTNAME>heiner</FIRSTNAME>
            <MAIDENNAME/>
            <STREET>Entenhausenerweg</STREET>
            <STREET_NO>15</STREET_NO>
            <ZIP>660666</ZIP>
            <CITY>Entenhausen</CITY>
            <COUNTRY>D</COUNTRY>
        </ADDRESS>
    </BL_USER>
    <BL_DPLI_RECORD>
        <DATE_CREATED>2006-01-31</DATE_CREATED>
        <DATE_LAST_UPDATE>2006-01-30</DATE_LAST_UPDATE>
        <REASON>
            <ENTRY>highspender limit exceeded</ENTRY>
            <DATE_OCCURRED>2006-01-30</DATE_OCCURRED>
        </REASON>
    <BL_DP_TOTAL>
        <NUMBER_DENIED_PAYMENTS_TOTAL>0</NUMBER_DENIED_PAYMENTS_TOTAL>
        <DATE_OLDEST_INVOICE/>
        <MONETARYVALUE>
            <V>0.00</V>
            <C>EUR</C>
        </MONETARYVALUE>
    </BL_DP_TOTAL>
    <BL_LI_RECORD>
        <DATE_LAST_UPDATE>2006-01-30</DATE_LAST_UPDATE>
        <MONETARYVALUE>
            <V>215.84</V>
            <C>EUR</C>
        </MONETARYVALUE>
    </BL_LI_RECORD>
    </BL_DPLI_RECORD>
</BL_DPLI_ENTRY>
[download]

Dumper output

$VAR1 = {
          'BL_DPLI_RECORD' => {
                                'REASON' => {
                                              'DATE_OCCURRED' => '2006
+-01-30',
                                              'ENTRY' => 'highspender 
+limit exceeded'
                                            },
                                'BL_LI_RECORD' => {
                                                    'MONETARYVALUE' =>
+ {
                                                                      
+   'C' => 'EUR',
                                                                      
+   'V' => '215.84'
                                                                      
+ },
                                                    'DATE_LAST_UPDATE'
+ => '2006-01-30'
                                                  },
                                'BL_DP_TOTAL' => {
                                                   'DATE_OLDEST_INVOIC
+E' => {},
                                                   'MONETARYVALUE' => 
+{
                                                                      
+  'C' => 'EUR',
                                                                      
+  'V' => '0.00'
                                                                      
+},
                                                   'NUMBER_DENIED_PAYM
+ENTS_TOTAL' => '0'
                                                 },
                                'DATE_LAST_UPDATE' => '2006-01-30',
                                'DATE_CREATED' => '2006-01-31'
                              },
          'BL_USER' => {
                         'USERID' => '22069332',
                         'ADDRESS' => {
                                        'COUNTRY' => 'D',
                                        'MAIDENNAME' => {},
                                        'CITY' => 'Entenhausen',
                                        'ZIP' => '660666',
                                        'LASTNAME' => 'M&#65533;ller',
                                        'FIRSTNAME' => 'heiner',
                                        'STREET' => 'Entenhausenerweg'
+,
                                        'STREET_NO' => '15'
                                      },
                         'PHONENO' => [
                                        {
                                          'ENTRY' => '877465535'
                                        },
                                        {
                                          'ENTRY' => '86719273704'
                                        },
                                        {
                                          'ENTRY' => '8671881760'
                                        },
                                        {
                                          'ENTRY' => '8671969876'
                                        }
                                      ]
                       }
        };
[download]

I need all Phone numbers with the reason behind (entry)
Example

__OUT__
877465535;highspender limit exceeded
86719273704;highspender limit exceeded
8671881760;highspender limit exceeded
8671969876;highspender limit exceeded
[download]

i attemped so far xml::simple with data::dumper, but i get confused howto access a record for each Customer because they always start with BL_DPLI_RECORD
tips hints are definatly needed

kd ultibuzz

#!"C:\perl\bin\perl.exe"

use warnings;
use strict;
use XML::Simple;
use Data::Dumper;


my $config = XMLin('test.xml');

open(OUT,'>','out.txt') or die;

print OUT Dumper($config);
[download]

Edited by planetscape - added readmore tags

Comment on Confusion ,XML::SIMPLE with DATA:DUMPER Select or Download Code

Replies are listed 'Best First'.
Re: Confusion ,XML::SIMPLE with DATA:DUMPER by Joost (Canon) on Nov 20, 2006 at 16:08 UTC
Forget about using XML::SImple for large XML files. It will take quite a lot more memory than the file size to load XML via XML::Simple. I'd recommend XML::Twig (and keep the fhe flush() method in mind). update: XML::Twig also has much better search methods for finding the tags you're interested in (and ignoring the rest). XML::Simple is more useful if the XML is fairly small and already more or less matches your desired data structure. "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply]
Re: Confusion ,XML::SIMPLE with DATA:DUMPER by monkey_boy (Priest) on Nov 20, 2006 at 17:00 UTC
A little snipet to get you going, you could easyly post-process the output if this: `use strict; use warnings; use XML::Twig; my $t = XML::Twig->new( twig_handlers => { 'PHONENO/ENTRY' => \&print_n_purge, 'REASON/ENTRY' => \&print_n_purge, } ); $t->parsefile($your_xml_file); sub print_n_purge { my( $t, $elt)= @_; print $elt->parent->name,":",$elt->text , "\n"; $t->purge; };` [download] This is not a Signature...	[reply] [d/l]
Re^2: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 20, 2006 at 20:04 UTC
xml::twig sounds good, if vpn is working right i will test now some. i just came home from a 12 hour working day big thanks to joos and you for that hind with xml:twig UPDATEi have tryed this snipet and this is the output `PHONENO:877465535 PHONENO:86719273704 PHONENO:8671881760 PHONENO:8671969876 not well-formed (invalid token) at line 17, column 14, byte 313 at C:/ +Perl/site/lib/XML/Parser.pm line 187` [download] i added 'REASON/DATE_OCCURRED' => \&print_n_purge because i thought its related to that i don't take this element of REASON. but this didn't help UPDATE2 well now i don't understand this, i jsut copy the informations ina a file called test2.xml and start over and i got this `PHONENO:867112593 PHONENO:86719273704 PHONENO:8671881760 PHONENO:8671969876 REASON:highspender limit exceeded no element found at line 52, column 16, byte 1252 at C:/Perl/site/lib/ +XML/Parser.pm line 187` [download] as you can see now the Reason is ther still an error but the reason is printed	[reply] [d/l] [select]
Re^3: Confusion ,XML::SIMPLE with DATA:DUMPER by Joost (Canon) on Nov 20, 2006 at 21:44 UTC
Looks like your "XML" file isn't well-formed (note the line and column numbers in the error messages refer to the line and column in the XML file). In effect that means it's not valid XML and you should return it to whoever created it and let them figure out how to write well-formed XML first. update: it appears the problem is the ü character. Adding an xml prolog that indicates the correct encoding should fix it. Add something like this at the very beginning of the file: `<?xml version="1.0" encoding="ISO-8859-1"?>` [download] Your encoding is probably iso-8859-1 (latin-1), CP1252 (latin windows encoding) or utf-8 (one of the unicode encodings) "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply] [d/l]
Re^4: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 20, 2006 at 22:20 UTC
Re^5: Confusion ,XML::SIMPLE with DATA:DUMPER by Joost (Canon) on Nov 20, 2006 at 22:46 UTC
Re: Confusion ,XML::SIMPLE with DATA:DUMPER by madbombX (Hermit) on Nov 20, 2006 at 17:05 UTC
I agree with Joost above, so I will therefore not restate his suggestion on using XML::Twig. However, if you are bent (for one reason or another) on using XML::Simple, then you need to look into the "ForceArray => 1" config item: `my $config = XMLin('test.xml', ForceArray => 1);` [download]	[reply] [d/l]
Re^2: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 20, 2006 at 19:57 UTC
i tryed it with forcearray but it looks nearly the same so i quit using force array	[reply]
Re: Confusion ,XML::SIMPLE with DATA:DUMPER by inman (Curate) on Nov 20, 2006 at 20:15 UTC
You can use a combination of XML::Twig to do the file processing record by record and XML::Simple for convenient data structure. Forcearray is strongly advised for XML::Simple.	[reply]
Re: Confusion ,XML::SIMPLE with DATA:DUMPER by Smaug (Pilgrim) on Nov 20, 2006 at 17:52 UTC
Hi, Untested but you're welcome to try: `$reason = $config->{'BL_DPLI_RECORD'}->{'REASON'}->{'ENTRY'};` [download] That should give you a good starting point to move on from. Update: In fact if you read getting required format output from a xml file I believe it will solve your confusion.	[reply] [d/l]
Re^2: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 20, 2006 at 20:01 UTC
this definatly sorts out some confusion ;) but i still don't geht how to get all the phone numbers, and this is also just an example i can have from one phone number to 1000	[reply]
Re: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 20, 2006 at 21:39 UTC
so i used this snipet to fill an array, then i seek in this array untill text is found, then all elements passed so far get the text found behind well even if this it not the nice way it works i don't find another way reading the xml::twig documentation tomorrow i will have again a look, i think its over for today with the brainpower kd ultibuzz	[reply]
Re^2: Confusion ,XML::SIMPLE with DATA:DUMPER by mirod (Canon) on Nov 21, 2006 at 05:14 UTC
Considering the data you need, there is no way for you to avoid storing the phone numbers, then outputing them when you find the reason. You could leave the elements (and just these elements) in the tree though, by using `twig_roots` to get the twig built only for them: `#!/usr/bin/perl use strict; use warnings; use XML::Twig; XML::Twig->new( # the twig will only contain PHONENO/ENTRY and REASON/ +ENTRY elements # (plus the root or it would not be a tree) twig_roots => { 'BL_USER/PHONENO/ENTRY' => 1, + 'BL_DPLI_RECORD/REASON/ENTRY' => \&rea +son, } ) ->parsefile( 'phone_data.xml'); sub reason { my( $t, $reason)= @_; foreach my $phone_no ($reason->prev_siblings) { print $phone_no->text, ";", $reason->text, "\n"; } $t->purge; }` [download]	[reply] [d/l]
Re^3: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 21, 2006 at 09:06 UTC
i have some questions left to understand this. with twig_roots it will make me an array if more then 1 entry is presented ? $reason->prev_siblings points to that array so the script process it one by one what means prev_siblings ? kd ultibuzz	[reply]
Re^4: Confusion ,XML::SIMPLE with DATA:DUMPER by mirod (Canon) on Nov 21, 2006 at 12:47 UTC
Re^5: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 21, 2006 at 14:06 UTC
RE: Confusion ,XML::SIMPLE with DATA:DUMPER by ultibuzz (Monk) on Nov 24, 2006 at 08:11 UTC
i want a third value to be printed out, so i set it up in the root Read more... (2 kB) with next_siblings i want to access the value but didn't work when i set the root tu => 1 its printet out like an element of phone number so whats wrong in my mind, whats screwed up ? kd ultibuzz	[reply] [d/l]