Page History

...

• externalLocation values are written as Feature Id
• externalParameter values are written as ObservedProperty
• 1st externalQualifier values are written as procedure (if not required fill in 'unknown')
• 2nd externalQualifier values are written as offering (if not required fill in 'unknown' or omit)

Parsing of response HRef items

Due to the nature of the WaterML standard, requested items such as featureOfInterest, observedProperties and procedure are returned in the form of xlink:href values. Such values give an URI representation of the original requested value. In order for the FEWS system to extract the original information from these URI's the response value is parsed. The following parsing scheme has been implemented for the given URI formats:

1.Fragments

example: http://sweet.jpl.nasa.gov/2.2/phenHydro.owl#StreamDischarge^{Image Added}

parse: new URI("http://sweet.jpl.nasa.gov/2.2/phenHydro.owl#StreamDischarge").getFragment()

result: StreamDischarge

2.Queries

example: http://nwis.waterdata.usgs.gov/usa/nwis/pmcodes?00065^{Image Added}

_parse:_new URI("http://nwis.waterdata.usgs.gov/usa/nwis/pmcodes?00065").getQuery()

result: 00065

3. Path

example: http://kiwis.kisters.de/parameters/Q^{Image Added}

parse: new File( new URI("http://kiwis.kisters.de/parameters/Q").getPath()).getName()

result: Q (element after last '/')

4. Text

example: myObservedProperty

parse: new File(new URI("myObsProperty").getPath()).getName();

result: myObsProperty

5. SchemaPart

example: urn:ogc:def:phenomenon:OGC:GageHeight

parse: new URI("urn:ogc:def:phenomenon:OGC:GageHeight").getSchemeSpecificPart()

result: GageHeight (element after last ':')