Handling errors - 7.3

Data mapping

Version
7.3
Language
English (United States)
Product
Talend Big Data Platform
Talend Data Fabric
Talend Data Management Platform
Talend Data Services Platform
Talend MDM Platform
Talend Real-Time Big Data Platform
Module
Talend Studio
Content
Data Governance > Third-party systems > Processing components (Integration) > Data mapping
Data Quality and Preparation > Third-party systems > Processing components (Integration) > Data mapping
Design and Development > Third-party systems > Processing components (Integration) > Data mapping

This scenario applies only to Talend Data Management Platform, Talend Big Data Platform, Talend Real Time Big Data Platform, Talend Data Services Platform, Talend MDM Platform and Talend Data Fabric.

For more technologies supported by Talend, see Talend components.

This following scenario creates a six-component Job that shows how to handle error conditions using the tHMap component.

When tHMap executes a Talend Data Mapper map, an ExecutionStatus object is always returned. A pointer to this object is stored in the globalMap as <tHMap_id>_EXECUTION_STATUS. In addition, the Overall Severity numeric value is also stored in the globalMap as <tHMap_id>_EXECUTION_SEVERITY.

Finally, a parameter called Exception Threshold is defined that specifies the severity on which to throw an exception, thus triggering Job-related or component-related error processing. This value can be defined in the tHMap properties, in the Advanced settings tab. The default value for this parameter is Fatal.

You can use the following functions in org.talend.transform.runtime.common.MapExecutionStatus to get information about your map execution:
  • getOverallSeverity(): returns the numeric value of the highest severity level.
    • INFO is returned as 1
    • WARN is returned as 2
    • ERROR is returned as 4
    • FATAL is returned as 0x40
  • isOK(): returns true if there is no warning, error or fatal status.
  • exportToXml(writer): writes the status items in XML format.