Extract numeric and non-numeric part from a string with WSO2 - xpath

Question

Thanks before. i want need help. I have simple process flow with wso2. The plan was validate and print string for alphabet and numeric. I can print both of them. but i think the formula was so much affort with that. i want find the simple way. i done try with regular expression. but when i try with that. i always get error result
My code :
<?xml version="1.0" encoding="UTF-8"?>
<api context="/split1" name="SplitAlphaNumber" xmlns="http://ws.apache.org/ns/synapse">
<resource methods="POST">
<inSequence>
<property expression="//OperationValueRegex/Value" name="Value" scope="default" type="STRING"/>
<payloadFactory media-type="xml">
<format>
<OperationValueRegex xmlns="">
<Result1>$1</Result1>
<Result2>$2</Result2>
</OperationValueRegex>
</format>
<args>
<arg evaluator="xml" expression="translate(., translate($ctx:Value,'0123456789',''), '')"/>
<arg evaluator="xml" expression="translate(., translate($ctx:Value,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',''), '')"/>
</args>
</payloadFactory>
<respond/>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
</api>
Expected Result was like this
<OperationValueRegex>
<Result1>1234</Result1>
<Result2>Mario Naga</Result2>
</OperationValueRegex>
Sample Input from postman :
<OperationValueRegex>
<Value>Mario Naga 1234</Value>
</OperationValueRegex>
and actual output :
<OperationValueRegex>
<Result1>
1234
</Result1>
<Result2>
MarioNaga
</Result2>
</OperationValueRegex>
Please need suggestion with this. thanks

Answer 1

Here is a simpler way to achieve what you need. Make sure Xpath 2.0 is enabled in WSO2 Server.
Use the following two XPath expressions.
fn:tokenize($ctx:Value, ' ')[matches(., '\d+')] // Tokenize the String with space and extract the part with numeric values.
fn:replace($ctx:Value, ' \d+', '') //Replace the numeric part from the string
PLFactory Mediator
<payloadFactory media-type="xml">
<format>
<OperationValueRegex xmlns="">
<Result1>$1</Result1>
<Result2>$2</Result2>
</OperationValueRegex>
</format>
<args>
<arg evaluator="xml" expression="fn:tokenize($ctx:Value, ' ')[matches(., '\d+')]" xmlns:fn="http://www.w3.org/2005/xpath-functions" />
<arg evaluator="xml" expression="fn:replace($ctx:Value, ' \d+', '')" xmlns:fn="http://www.w3.org/2005/xpath-functions" />
</args>
</payloadFactory>

Answer 2

It seems you do a second translate to get rid of leading/trailing spaces. This messes up your values. Instead you can use normalize-space() function as follows, this gets you the desired output:
<api xmlns="http://ws.apache.org/ns/synapse" name="SplitAlphaNumber" context="/split1">
<resource methods="POST">
<inSequence>
<property name="Value" expression="//OperationValueRegex/Value" scope="default" type="STRING"/>
<payloadFactory media-type="xml">
<format>
<OperationValueRegex xmlns="">
<Result1>$1</Result1>
<Result2>$2</Result2>
</OperationValueRegex>
</format>
<args>
<arg evaluator="xml" expression="normalize-space(translate($ctx:Value,'0123456789',''))"/>
<arg evaluator="xml" expression="normalize-space(translate($ctx:Value,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',''))"/>
</args>
</payloadFactory>
<respond/>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
</api>