How to extract XML node values and from recurring nodes in pentaho?

问题

I am having a XML in the below mentioned format. I am using Get XML in pentaho to parse this. But I am not able get correct path to get all the values. I want all the values of 'custom-attributes'.

It is only giving me the value of only first attribute .i.e for 'sex' only. Could anyone please help me how to get the values of other custom-attributes.

I have given the 'LoopXpath' setting as :- /names/name

After pressing 'Get fields' in fields tab as. I am automatically getting the custom-attribute xpath in Fields tab as mentioned below:- And it is giving the value of 'sex' only.

Name             |Xpath                                |Element     |  ResultType   |Type 
----------------------------------------------------------------------------------------------
custom-attributes |custom-attributes/custom-attribute  |Node         |Value of      |String



<names>
    <name>
      <firstname>ABCDEH</firstname>
      <lastname>JKLAM</lastname>
      <custom-attributes>
        <custom-attribute attribute-id="sex">male</custom-attribute>
        <custom-attribute attribute-id="height">169</custom-attribute>
        <custom-attribute attribute-id="weight">78</custom-attribute>
        <custom-attribute attribute-id="dateofbirth">09/09/1990</custom-attribute>
        <custom-attribute attribute-id="occupation">engineer</custom-attribute>
      </custom-attributes>
    </name>
  </names>

At last I want a single row like mentioned below:-

firstname lastname   sex    height    weight   dateofbirth   occupation

ABCDEH    JKLAM      male    160        78      09/09/1990    engineer

Could anyone please help me in that

回答1:

I am not sure what you have done in your code. Firstly in the "Loop XPATH" settings section of the step, define the parent node path instead of the 'custom-attribute' path (like you have mentioned above) as below:

/names/name/custom-attributes//*

Secondly when you get fields attribute i.e the "custom-attribute", you will need to specify the XPATH as '.' (dot). This will do the recursion of the attribute values. Check the image below:

Finally you will get the recursive data as :

I have placed a sample code in here. Please check it out for ref.

Hope it helps :)

来源：https://stackoverflow.com/questions/28348709/how-to-extract-xml-node-values-and-from-recurring-nodes-in-pentaho