xmlextract
Use the xmlextract command to obtain excerpts of an
existing field using XPath from an XML document. The command captures the resulting excerpt
into a virtual field.
The xmlextract command cannot operate on the
Original Log Content field. Default field, if not specified, is
Message. The extracted field has a string, number or a
list data type.
To be able to use the xmlextract command on the value of Original
Log Content field, first copy the Original Log Content field into a
string field, and then run xmlextract on the new string field.
Syntax
xmlextract field = <field_to_parse> <new_field_name> = <XPath>Parameters
The following table lists the parameters used in this command, along with their descriptions.
| Parameter | Description |
|---|---|
|
|
Specify the existing field that must be parsed using the XPath. |
|
|
Specify the virtual field into which the excerpt of the existing field must be captured. |
|
|
Specify the XPath where the information for the virtual field can be obtained. XPath expressions always refer to an XML document. XPath expressions can use the complete path as in
|
The following example uses the xmlextract command to
find the title of the first book in the XML document:
* | xmlextract field = Store title = '(//title)[1]'