Converting an xml file to byte array in ruby

ruby-talk
1

Hi,

Can someone help me with converting an xml file to byte array in ruby ?
I have a requirement to send a file as a byte array to a SOAP based web
service.

I have created ruby methods to do some other functions which deal with
strings and arrays. But I am unable to convert file to byte array to use
it with a particular method.

Any help will be appreciated.
Thanks in advance.

Kind regards,
kazi

···

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2

Can someone help me with converting an xml file to byte array in ruby ?
I have a requirement to send a file as a byte array to a SOAP based web
service.

That sounds so wrong. I mean, you have XML and a protocol which uses XML
messages - and it's especially tailored to allow for embedding arbitrary
XML content in the message body. Why send as a "byte array"? What is this
supposed to mean anyway?

I have created ruby methods to do some other functions which deal with
strings and arrays. But I am unable to convert file to byte array to use
it with a particular method.

The thing which comes closes to a "byte array" in Ruby is a String with
encoding "BINARY".

Cheers

robert

···

On Mon, May 27, 2013 at 5:22 PM, Khudadad Kazi <lists@ruby-forum.com> wrote:

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

3

OK. to be more specific, here is my method:
def
add_file_to_project(ticket,pid,fileName,fileData,srcId,targetIds,metadata=nil)
    require 'savon'
    received_path=@path
    client = Savon.client do
    wsdl received_path
    end
    message = {'Ticket' => ticket, 'ProjectID' => pid,'Filename' =>
fileName, 'FileData'=> fileData,'SourceLanguageID' => srcId,
'TargetLanguageIDs' => targetIds, 'Metadata' => nil,
'IsReferenceMaterial' => false, 'WebServiceType' => 'Publisher'}
    response = client.call(:add_file_to_project, :message => message)
    addFileToProjectResult =
response.body[:add_file_to_project_response][:add_file_to_project_result]
    return addFileToProjectResult
  end

where in fileData should be a base64Binary (to which i referred as a
"byte array").
Now, rest of the parameters are Strings except for 'TargetLanguageIDs'
which is an array.
I just need to send a file in that fileData parameter. Please show how
to achieve that when I do not put restrictions on any kind of files.

···

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4

OK. to be more specific, here is my method:
def

add_file_to_project(ticket,pid,fileName,fileData,srcId,targetIds,metadata=nil)
    require 'savon'
    received_path=@path
    client = Savon.client do
    wsdl received_path
    end
    message = {'Ticket' => ticket, 'ProjectID' => pid,'Filename' =>
fileName, 'FileData'=> fileData,'SourceLanguageID' => srcId,
'TargetLanguageIDs' => targetIds, 'Metadata' => nil,
'IsReferenceMaterial' => false, 'WebServiceType' => 'Publisher'}
    response = client.call(:add_file_to_project, :message => message)
    addFileToProjectResult =
response.body[:add_file_to_project_response][:add_file_to_project_result]
    return addFileToProjectResult
  end

where in fileData should be a base64Binary (to which i referred as a
"byte array").

Well, but then it's a string, isn't it? Or what type is fileData? (Btw.
in Ruby we usually use "file_data").

I just need to send a file in that fileData parameter. Please show how

to achieve that when I do not put restrictions on any kind of files.

If it is a String already, just leave it as is. If not,
use Base64.encode64 to make it a String.

Kind regards

robert

···

On Mon, May 27, 2013 at 6:50 PM, Khudadad Kazi <lists@ruby-forum.com> wrote:

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

5

Thanks for the help Robert. I am really trying hard to understand the
problem and to make it clear in my query as well.

I used the above information about Base64 provided by you and I get a
SOAP response (status 200) along with the request parameters which I
provided.

Robert Klemme wrote in post #1110295:

Well, but then it's a string, isn't it? Or what type is fileData?
(Btw.
in Ruby we usually use "file_data").

The WebService defines file_data parameter to be base64Binary, and I
have the equivalent code in java as follows:
FileInputStream fis = new FileInputStream(fileList[i]);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte buff = new byte[1024];
for (int readNum; (readNum = fis.read(buff)) != -1;)
{
   bos.write(buff, 0, readNum);
}
byte blob = bos.toByteArray();

I am investigating why I am getting a status 200 error.

Thanks again for your time. I will post my findings as I work my way
forward.

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6

200 is not an error.

robert

···

On Tue, May 28, 2013 at 8:30 AM, Khudadad Kazi <lists@ruby-forum.com> wrote:

I am investigating why I am getting a status 200 error.

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

7

I have now tried various combinations. After I call the web services
method, I have a tool to go and check if the file was attached or
not.And none of the methods seem to work.

I have attached a whole stack trace for your reference.

Here is a summary of the various ways I have tried :
Step 1. Read the xml file
xmlfeed = Nokogiri::XML(open("D:\FSII
AudioCo.NewMediaPlayerOffersVideo.xml"))

Step 2. convert to Base64binary and call (Please refer my previous post
to see the method that I am calling)
      trial 1. fileData=Base64.encode64(xmlfeed)
      Result: SOAP response (status 200) with a "=>nil" at the end.

      trial 2. fileData=xmlfeed.to_s converting to string as it is.
      Result: Savon::HTTPError: HTTP error (400): Bad Request

       trial 3. fileData=Base64.encode64(xmlfeed.to_s)
      Result: SOAP response (status 200) with a "=>nil" at the end.

Kindly point out what is wrong.(or the things are going wrong in my head
?)

Kind regards,
Kazi

Attachments:
http://www.ruby-forum.com/attachment/8464/B64b.txt

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8

That got resolved.

The call to the web services required the array to be passed as:
target_ids=[]
target_ids.push('fr-fr')
target_ids.push('de-de')

And the Base64.encode64 worked as

file_data=Base64.encode64(File.read(file_path))

Thanks for your help :slight_smile:

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9

You'll want File.read(file_path, encoding: "BINARY")

Cheers

robert

···

On Fri, Jun 7, 2013 at 12:30 PM, Khudadad Kazi <lists@ruby-forum.com> wrote:

That got resolved.

The call to the web services required the array to be passed as:
target_ids=
target_ids.push('fr-fr')
target_ids.push('de-de')

And the Base64.encode64 worked as

file_data=Base64.encode64(File.read(file_path))

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/