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Using DFSORT to create CSV files
I plan on writing some entries on creating and parsing XML with DFSORT (using the UK90006 / UK90007 functional enhancments that DFSORT Development recently announced). But here's a limbering up example - creating a CSV file from regular sequential file input. CSV files ( C omma- S eparated V alue (or V ariable if you prefer)) are of the form "JDLFJDJ DF",4146,"FKJFK" "JDJDJ JKJJ",12352,"EE... [More]
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Learning Android Programming
A while back I set myself a technical challenge: To learn how to program an Android device.
NOTE: I don't have a real application in mind, just idle curiosity and a degree of annoyance at the prerequisites to be able to program an iPhone (apart from as a WebApp).
Here's what I did and how I've got on:
My Equipment
I bought the cheapest Android tablet I could find. It's an... [More]
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Parsing XML with DFSORT
Following on from Generating XML Using DFSORT - Part II here are some thoughts on how to parse XML with DFSORT. NOTE: For more complex XML than this entry describes you probably want to use the XML Toolkit for z/OS . This provides C++ and Java parsers for XML and a stand-alone XSLT processor. In this example I'll show you how to take XML that looks like this and create a flat file from it:... [More]
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Pretty Printing XML in Python
A need has arisen for pretty printing XML. This post includes some Python code to do it.
I've been working with the OpenOffice.org ODP presentation file format recently: I want to generate presentations from application code.
An ODP file is a structured zip file. Among other items it contains an XML file - content.xml - which describes the pages in the presentation.... [More]
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Workload Manager Policy in XML Format - Part I
This isn't particularly new - but I'm guessing most people who work with WLM don't know about this...
For some time now you've been able to download a java application that enables you to convert your WLM Service Definition to and from XML. Perhaps more importantly, the application provides a nice way to edit the Service Definition - and that is actually its main purpose.
... [More]
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First Impressions Of Programming With Adobe AIR
Many of you will have, by now, installed the Adobe AIR runtime. Most probably it will be to run something like Twhirl. At this point many of you will be asking "what's Twhirl?" If I said it was a nice desktop application that makes using Twitter so much easier I hope you don't ask "what's Twitter?" :-) So, we're beginning to see these desktop applications coded using Adobe AIR, which stands for... [More]
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Hackday 9 - REXX, Java and XML
I've written about Hackday in the past. See My HackDay 6 Project - Mashing Up RMF , My HackDay 5 Project - z/OS System Logger Analysis and Hackday4 and Referer URLs (though I don't know why I didn't write about Hackday 7 or Hackday 8). So, this year I participated in Hackday 9 (last Friday). My entry follows on from this recent blog post: BPXWUNIX - z/OS' Best Kept Secret? . Graham Harris, in... [More]
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XML, XSLT and DFSORT, Part Zero - Overview
In the distant past I've written about using DFSORT to parse XML. This post (and two follow-on posts) will describe
an experiment to make such processing much more robust.
In this post I'll talk about what the problem I'm trying to solve is. And why. And a brief outline of my solution.
About XML
This isn't meant to be the most detailed description of XML, nor a complete list... [More]
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XML, XSLT and DFSORT, Part One - Creating A Flat File With XSLT
This is the second part of a (currently) three-part series on processing XML data with DFSORT, given a little help from standard XML processing tools. The first part - which you should read before reading on - is here .
To recap, getting XML data into DFSORT is a two stage process:
Flatten the XML data so that it consists of records with fields in sensible places.
Process this... [More]
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Setting Arbitrary Variables In A REXX Procedure That Persist After It Completes
Over the weekend I decided to try my hand at writing a JSON parser in REXX. I developed the technique outlined in this post to enable me to do that. I think it's new. Certainly I've not seen it before.
(I don't want at this point to get into a discussion about why JSON parsing might be a useful thing to do. Suffice it to say it is possibly going to be second only to XML as a common data... [More]
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Workload Manager Policy in XML Format - Part III
Here's another way to process a WLM Service Definition - once you've got it into XML format. XSLT (XML Stylesheet Transformations if you prefer) is another technology that's been around for a while. In simple terms you write another piece of XML (the stylesheet) that describes how to transform your original XML into something else. There's a lot of flexibility in this but the example in this post... [More]
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XML, XSLT and DFSORT, Part Two - DFSORT
Following on from this post and this one , this post discusses the DFSORT piece.
The DFSORT code in this post parses the Comma-Separated Variable (CSV) file produced by XSLT processing. In this simple example it merely produces a flat file report, but the post has a few additional details you might find valuable.
First, here's the SORTIN DD JCL statement. It's not like a regular sequential... [More]
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Workload Manager Policy in XML Format - Part IV
So here's yet another way of parsing the WLM XML Service Definition. This time it's on z/OS, using DFSORT. Relatively recent features in DFSORT have made it easier to do useful things with XML. In this example I've made some attempt to make the output pretty - by creating a HTML table. Below is the SYSIN you need to parse the <SchedulingEnvironment> elements. I'm assuming you know how to... [More]
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Workload Manager Policy in XML Format - Part II
In Workload Manager Policy in XML Format - Part I I showed you how you can use PHP to extract Classification Rules information from the WLM Service Definition (once converted to XML format). This post gives an example of extracting a different set of information from the XML Service Definition, using javascript and, in particular, XMLHttpRequest (sometimes known as XHR). There is a slightly... [More]
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Generating XML Using DFSORT - Part II
In Generating XML Using DFSORT - Part I I described how to generate XML using some of DFSORT's new features. But the XML we generated was only one of the possible styles of XML: Most of the information was specified as attributes (with the values enclosed in quotes). Here's a sample line: <member surname="Mercury" firstname="Freddie" job="Singer" /> In this case the attribute job has the... [More]
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