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Created by
Christian Kuka (库科), last updated on Feb 18, 2014
1 minute read
The XML protocol handler parses XML documents and extracts attribute values using XPath expressions.
Options
- delay: Delay of reading in milliseconds (default 0).
- nanodelay: Delay of reading in nanoseconds (default 0).
- Attribute: XPath for the attribute in the document.
Example
PQL
XML Protocol Handler
input = ACCESS({source='Web', wrapper='GenericPush',
transport='File',protocol='XML',
dataHandler='Tuple',options=[['symbol','/symbols/symbol[last()]/name'],['points','/symbols/symbol[last()]/points']],
schema=[
['symbol','String'],
['points','Double'] ]
})