Okay so I have an "answer" as it were:
Instrumenting the DataStore Form and Action gives me this...
form connection params { user="postgis_ro", passwd="postgis_ro", host="feathers.leeds.ac.uk", port=5432, database="postgis_test", dbtype="postgis"}
temporary datastore:org.geotools.data.postgis.PostgisDataStore@anonymised.com
typeNames : ("esridata_country", "river", "road", "testset")
So I am convinced that out params as specified actually work.
When I instrument - DataConfig.getFeatureTypeIdentifiers I find the real problem:
Could not use postgis datastore was unavailable!
java.lang.NullPointerException
at org.vfny.geoserver.config.DataConfig.getFeatureTypeIdentifiers(DataConfig.java:680)
at org.vfny.geoserver.form.data.DataFeatureTypesNewForm.getNewFeatureTypes(DataFeatureTypesNewForm.java:35)
So the DataConfig we created cannot create a DataStore...
public DataStore findDataStore(ServletContext sc) throws IOException {
return DataStoreUtils.aquireDataStore(connectionParams,sc);
where aquireDataStore fixes url entries to be relative - so we don't trip up on shapefiles
So we can go back to DataDataStoresEditorAction where:
config.setConnectionParams(paramTexts);
And change it to save the real connectionParams (with real URL/Integer values rather than Strings) and mask the problem.
But lets dig further.
This should not really be needed as the Params are supposed to have enough smarts to up convert text representations to the appropriate values.
So this could be a lack on the postgis datastore part ....
And there we have it -
the postgis can process is the param map directly ...
if (!(((value = params.get(arrayParameters[i].key)) != null)
&& (arrayParameters[i].type.isInstance(value)))) {
if (arrayParameters[i].required) {
return (false);
}
}
Where the actuall create statement uses lookUp which does the up convert thing.
String host = (String) HOST.lookUp(params);
String user = (String) USER.lookUp(params);
String passwd = (String) PASSWD.lookUp(params);
Integer port = (Integer) PORT.lookUp(params);
String database = (String) DATABASE.lookUp(params);
String namespace = (String) NAMESPACE.lookUp(params);
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