http://schemas.opengis.net/csw/3.0/cswHarvest.xsd
This schema defines the request and response messages for the
Harvest operation.
CSW is an OGC Standard.
Copyright (c) 2016 Open Geospatial Consortium.
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Requests that the catalogue attempt to harvest a resource from some
network location identified by the source URL.
Source - a URL from which the resource is retrieved
ResourceType - normally a URI that specifies the type of the
resource being harvested
ResourceFormat - a media type indicating the format of the
resource being harvested. The default is
"application/xml".
ResponseHandler - a reference to some endpoint to which the
response shall be forwarded when the
harvest operation has been completed
HarvestInterval - an interval expressed using the ISO 8601 syntax;
it specifies the interval between harvest
attempts (e.g., P6M indicates an interval of
six months).
The content of the response varies depending on the presence of the
ResponseHandler element. If present, then the catalogue should
verify the request and respond immediately with an
csw30:Acknowledgement element in the response. The catalogue must
then attempt to harvest the resource at some later time and send
the response message to the location specified by the value of the
ResponseHandler element using the indicated protocol (e.g. ftp,
mailto, http).
If the ResponseHandler element is absent, then the catalogue
must attempt to harvest the resource immediately and include a
TransactionResponse element in the response.
In any case, if the harvest attempt is successful the response
shall include summary representations of the newly created
catalogue item(s).