parse xml to multiple flat files with ABAP

Former Member — Wed, 05 Sep 2007 15:47:03 GMT

Hi,

we have a big XML file but it has data from different vendors and we need flat file/vendor how can we achieve this using any ABAP Fm,class etc...

basically we need to parse the big xml data into small chunks of the flat files using ABAP.

thank you,

Babu

Re: parse xml to multiple flat files with ABAP

Former Member — Wed, 05 Sep 2007 15:55:01 GMT

HI,

Here is a program which would read a XML file.. you can get the data into internal table and you cand created flat files.

&----

*& Report z_xit_xml_check

&----

report z_xit_xml_check.

class cl_ixml definition load.

type-pools: ixml.

types: begin of t_xml_line,

data(256) type x,

end of t_xml_line,

begin of tsfixml,

data(1024) type c,

end of tsfixml.

data: l_ixml type ref to if_ixml,

l_streamfactory type ref to if_ixml_stream_factory,

l_parser type ref to if_ixml_parser,

l_istream type ref to if_ixml_istream,

l_document type ref to if_ixml_document,

l_node type ref to if_ixml_node,

l_xmldata type string.

data: l_elem type ref to if_ixml_element,

l_root_node type ref to if_ixml_node,

l_next_node type ref to if_ixml_node,

l_name type string,

l_iterator type ref to if_ixml_node_iterator.

data: l_xml_table type table of t_xml_line,

l_xml_line type t_xml_line,

l_xml_table_size type i.

data: l_filename type string.

parameters: pa_file type char1024 default

'd:\joao\desenvolvimentos\fi\fact\teste.xml'.

Validation of XML file: Only DTD included in xml document is supported

parameters: pa_val type char1 as checkbox.

start-of-selection.

Creating the main iXML factory

l_ixml = cl_ixml=>create( ).

Creating a stream factory

l_streamfactory = l_ixml->create_stream_factory( ).

perform get_xml_table changing l_xml_table_size l_xml_table.

wrap the table containing the file into a stream

l_istream = l_streamfactory->create_istream_itable( table =

l_xml_table

size =

l_xml_table_size ).

Creating a document

l_document = l_ixml->create_document( ).

Create a Parser

l_parser = l_ixml->create_parser( stream_factory = l_streamfactory

istream = l_istream

document = l_document ).

Validate a document

if pa_val eq 'X'.

l_parser->set_validating( mode = if_ixml_parser=>co_validate ).

endif.

Parse the stream

if l_parser->parse( ) ne 0.

if l_parser->num_errors( ) ne 0.

data: parseerror type ref to if_ixml_parse_error,

str type string,

i type i,

count type i,

index type i.

count = l_parser->num_errors( ).

write: count, ' parse errors have occured:'.

index = 0.

while index < count.

parseerror = l_parser->get_error( index = index ).

i = parseerror->get_line( ).

write: 'line: ', i.

i = parseerror->get_column( ).

write: 'column: ', i.

str = parseerror->get_reason( ).

write: str.

index = index + 1.

endwhile.

endif.

Process the document

if l_parser->is_dom_generating( ) eq 'X'.

perform process_dom using l_document.

endif.

&----

*& Form get_xml_table

&----

form get_xml_table changing l_xml_table_size type i

l_xml_table type standard table.

Local variable declaration

data: l_len type i,

l_len2 type i,

l_tab type tsfixml,

l_content type string,

l_str1 type string,

c_conv TYPE REF TO cl_abap_conv_in_ce,

l_itab type table of string.

l_filename = pa_file.

upload a file from the client's workstation

call method cl_gui_frontend_services=>gui_upload

exporting

filename = l_filename

filetype = 'BIN'

importing

filelength = l_xml_table_size

changing

data_tab = l_xml_table

exceptions

others = 19.

if sy-subrc <> 0.

message id sy-msgid type sy-msgty number sy-msgno

with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.

endif.

Writing the XML document to the screen
CLEAR l_str1.
LOOP AT l_xml_table INTO l_xml_line.
c_conv = cl_abap_conv_in_ce=>create( input = l_xml_line-data

*replacement = space ).

c_conv->read( IMPORTING data = l_content len = l_len ).
CONCATENATE l_str1 l_content INTO l_str1.
ENDLOOP.
l_str1 = l_str1+0(l_xml_table_size).
SPLIT l_str1 AT cl_abap_char_utilities=>cr_lf INTO TABLE l_itab.
WRITE: /.
WRITE: /' XML File'.
WRITE: /.
LOOP AT l_itab INTO l_str1.
REPLACE ALL OCCURRENCES OF cl_abap_char_utilities=>horizontal_tab

*IN

l_str1 WITH space.
WRITE: / l_str1.
ENDLOOP.
WRITE: /.

endform. "get_xml_table

&----

*& Form process_dom

&----

form process_dom using document type ref to if_ixml_document.

data: node type ref to if_ixml_node,

iterator type ref to if_ixml_node_iterator,

nodemap type ref to if_ixml_named_node_map,

attr type ref to if_ixml_node,

name type string,

prefix type string,

value type string,

indent type i,

count type i,

index type i.

data: name2 type string,

name_root type string,

node_parent type ref to if_ixml_node,

node_root type ref to if_ixml_node,

num_children type i.

node ?= document.

check not node is initial.

uline.

write: /.

write: /' DOM-TREE'.

write: /.

if node is initial. exit. endif.

create a node iterator

iterator = node->create_iterator( ).

get current node

node = iterator->get_next( ).

loop over all nodes

while not node is initial.

indent = node->get_height( ) * 2.

indent = indent + 20.

num_children = node->num_children( ).

case node->get_type( ).

when if_ixml_node=>co_node_element.

element node

name = node->get_name( ).

nodemap = node->get_attributes( ).

node_root = node->get_root( ).

name_root = node_root->get_name( ).

write: / 'ELEMENT :'.

write: at indent name color col_positive inverse.

write: 'NUM_CHILDREN:', num_children.

write: 'ROOT:', name_root.

node_parent = node->get_parent( ).

name2 = node_parent->get_name( ).

write: 'NAME2: ' , name2.

if not nodemap is initial.

attributes

count = nodemap->get_length( ).

do count times.

index = sy-index - 1.

attr = nodemap->get_item( index ).

name = attr->get_name( ).

prefix = attr->get_namespace_prefix( ).

value = attr->get_value( ).

write: / 'ATTRIBUTE:'.

write: at indent name color col_heading inverse, '=',

value color col_total inverse.

enddo.

endif.

when if_ixml_node=>co_node_text or

if_ixml_node=>co_node_cdata_section.

text node

value = node->get_value( ).

write: / 'VALUE :'.

mjprocha

node_parent = node->get_parent( ).

write: at indent value color col_group inverse.

name2 = node_parent->get_name( ).

write: 'NAME2: ' , name2.

endcase.

advance to next node

node = iterator->get_next( ).

endwhile.

endform. "process_dom

Thanks

Mahesh

Re: parse xml to multiple flat files with ABAP

Former Member — Wed, 05 Sep 2007 16:06:06 GMT

good

Why dont you once check with the XML file, might be you its not properly sturctured. look wether all the fields are closed properly. I suppose that there should be some problem within the XML file for that error. if you downloaded that file, try and do it so again; or esle restructure it again.

thanks

mrutyun^

Re: parse xml to multiple flat files with ABAP

Former Member — Wed, 05 Sep 2007 18:45:00 GMT

Mahesh,

thank you for the code.

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parse xml to multiple flat files with ABAP

Re: parse xml to multiple flat files with ABAP

Re: parse xml to multiple flat files with ABAP

Re: parse xml to multiple flat files with ABAP