CODEWITHSUNDEEP
xmlmatlabedit
Trenera
Trenera

Reputation: 1505

MATLAB - XML Basics in Edit

I have the following XML structure (simplified version):

<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="LMSDacSolutionReport.xsl" ?>
<LMS>
    <DurabilityTaskDefinition>
        <Material IdRef="Material_AlSi9Cu3" />
        <Tasks>
            <Task>
                <Material IdRef="AlSi9Cu3"> 
                            <Parameter Name="Temperature" Value="293.15"/>
                </Material>
            </Task>
        </Tasks>
    </DurabilityTaskDefinition>
    <Material>
        <Node>
            <Parameter Name="Temperature" Value="293.15"/>
            <Parameter Name="SigMeanHat" Value="0"/>
            <Parameter Name="R_Ratio" Value="-1"/>
        </Node>
    </Material>
</LMS>

I need to change the value of the Parameter Temperature to 300 (Material - Node - Parameter('Temperature')(Line 16). The problem is that I have the tag <Material> 2 times before that, and this position will vary each time I run the code. I want to tell MATLAB to change the value of the Parameter with attribute: Name 'Temperature', only if the Material tag is on the second level after <LMS>, or if the material tag is after the end of the tag: 'DurabilityTaskDefinition' . So far I am sure just how to open and read the file:

xDoc = xmlread('C:\TEST\Durability Strain Life Analysis Solution.12.xml');
allListItems=xDoc.getElementsByTagName('Material');
Material=allListItems.item(2);
...
xmlwrite('test2.xml',xDoc);

Upvotes: 1

Views: 413

Answers (1)

Trenera
Trenera

Reputation: 1505

Based on the comments, here is my working code:

% Import the XPath classes
import javax.xml.xpath.*

% Construct the DOM.
doc = xmlread('C:\TEST\Durability Strain Life Analysis Solution.12.xml');

factory = javax.xml.xpath.XPathFactory.newInstance();
xpath = factory.newXPath();
expr = xpath.compile('/LMS/Material/Node/Parameter[@Name="Temperature"]');
result = expr.evaluate(doc, XPathConstants.NODESET);
result = result.item(0);
result.setAttribute('Value','363696369')

xmlwrite('Final.xml',doc);

Would anyone suggest an improvement?

Upvotes: 2

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