Pentaho - FieldHelper cannot be cast to java.lang.String

Thu, 01 Sep 2016 13:11:20 +0000

👴 Careful You’re reading an old article ! Some links might be broken and content may be outdated

I had the following error in a « User Defined Java Class » step on Pentaho Data Integration.

FieldHelper cannot be cast to java.lang.String

Indeed, you have to use the getRow() method to convert the field you’re getting into a String or any other variable type.

public boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws KettleException, Exception
{
  Object[] r = getRow();
        if (r == null) { return false; }
        String myString = get(Fields.In, "FeedSubmissionId").getString(r);
}

Get XML Data won't parse XML object Pentaho

Mon, 01 Aug 2016 17:20:40 +0000

👴 Careful You’re reading an old article ! Some links might be broken and content may be outdated

I had an issue with Pentaho today. It wasn’t able to simply parse this XML that I was fetching from Amazon Marketplace Webservice.

Here’s the data I got :

<SubmitFeedResponse xmlns="http://mws.amazonaws.com/doc/2009-01-01/">
<SubmitFeedResult>
<FeedSubmissionInfo>
<FeedSubmissionId>MY_FEED_ID</FeedSubmissionId>
<FeedType>_POST_INVENTORY_AVAILABILITY_DATA_</FeedType>
<SubmittedDate>2016-08-01T19:28:30+00:00</SubmittedDate>
<FeedProcessingStatus>_SUBMITTED_</FeedProcessingStatus>
</FeedSubmissionInfo>
</SubmitFeedResult>
<ResponseMetadata>
<RequestId>MY_REQUEST_ID</RequestId>
</ResponseMetadata>
</SubmitFeedResponse>

The step « Get XML Data » couldn’t parse it because of the xmlns attribute tag. So I had to add a step « Replace in string » that would delete this attribute.

Pentaho on Laïla Atrmouh

Pentaho - FieldHelper cannot be cast to java.lang.String

Get XML Data won't parse XML object Pentaho