From: Bob Aiello <bob.aiello@...>
Date: 2011-09-06T08:42:09+09:00
Subject: Re: Ruby and XML

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thanks for all of the excellent responses. I am going through them all.

I have attached a copy of an XML (with some of the name/value pairs
deleted for brevity.

<?xml version="1.0" encoding="UTF-8"?>
<product-state xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="urn://mycompany.com/ia/product-state" xsi:type="product-state">
<properties>
<!-- WebSphere properties -->
<property>
<name>core.was.home</name>
<value>/usr/IBM/WebSphere/AppServer1/profiles/AppSrvQA</value>
</property>
<property>
<name>core.was.username</name>
<value>admin</value>
</property>
<property>
<name>core.was.password</name>
<value>password</value>
</property>
<property>
<name>core.application.name</name>
<value>myapp</value>
</property>
<property>
<name>core.application.context.root</name>
<value>myroot</value>
</property>

</properties>
</product-state>


Essentially, I have hundreds of XML files like this one that contain
many many name value pairs. I am concerned that the value is defined
differently (actually I have seen this) in one or more of the XML. I
want to take an xml file and then parse the name/value pairs into a
list. Then I want to check that list against all of the other XML in the
system that have the same name/value pairs.

So I might find that one XML defines

<name>core.application.context.root</name>
<value>myroot</value>

and another XML defines this name/value pair as

<name>core.application.context.root</name>
<value>bigroot</value>

Which would indicate a configuration management error that needs to be
corrected.
(Half the application is looking in the wrong place for the
core.application.context.root)

Ultimately, I want to implement this as part of an application
deployment framework possibly using Puppet or Chef.

Bob Aiello
http://www.linkedin.com/in/BobAiello
_______________________________________________________________

On 9/4/2011 3:12 PM, Bartosz Dziewo��ski wrote:
>   First of all, I'd recommend you a different library. Personalyl I
>   found REXML awkward to use, Nokogiri (`gem install nokogiri`) is much
>   better. (It also parses HTML.)
>
>   We'll probably need the XML file to be able to help you.
>
>   -- Matma Rex
>
>



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<?xml version="1.0" encoding="UTF-8"?>
<product-state xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="urn://mycompany.com/ia/product-state" xsi:type="product-state">
    <properties>
		<!-- WebSphere properties -->
        <property>
            <name>core.was.home</name>
            <value>/usr/IBM/WebSphere/AppServer1/profiles/AppSrvQA</value>
        </property>
        <property>
            <name>core.was.username</name>
            <value>admin</value>
        </property>		
        <property>
            <name>core.was.password</name>
            <value>password</value>
        </property>
        <property>
            <name>core.application.name</name>
            <value>myapp</value>
        </property>
        <property>
            <name>core.application.context.root</name>
            <value>myroot</value>
        </property>		

    </properties>
</product-state>



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