Hello all.
I need an OracleDatastore with a fidmapper which returns FIDColumns As
Attributes. The only way I found is to create a new Factory extending
OracleDataStoreFactory, override the createDatastore method as follows
(I have to copy it to modify only a line in the middle...this is a
dangerous thing, because it will hide any further change of super.
createDataStore() ) and extend OracleDatastore to override the
buildFIDMapperFactory. There is a better way? I've seen that the
original buildFIDMapperFactory method (inherited from JDBC1DataStore)
have a datastoreConfig in his signature, but its contents are not used
to parameterize the new DefaultFIDMapperFactory. Is it possible to
change this behavior in the official geotools package?
// METHOD in the new Factory
public DataStore createDataStore(Map params) throws IOException {
this.params = params;
super.createDataStore(params);
/* There are no defaults here. Calling canProcess verifies that
* all these variables exist.
*/
String host = (String) HOST.lookUp( params );
Integer port = (Integer) PORT.lookUp( params );
String instance = (String) INSTANCE.lookUp( params );
String user = (String) USER.lookUp( params );
String passwd = (String) PASSWD.lookUp( params );
String schema = (String) SCHEMA.lookUp( params ); // checks
uppercase
String namespace = (String) NAMESPACE.lookUp( params );
String dbtype = (String) DBTYPE.lookUp( params );
Integer maxConn = (Integer) MAXCONN.lookUp(params);
Integer minConn = (Integer) MINCONN.lookUp(params);
Boolean validateConn = (Boolean) VALIDATECONN.lookUp(params);
if( !"oracle".equals( dbtype )){
throw new IOException( "Parameter 'dbtype' must be oracle");
}
if (!canProcess(params)) {
throw new IOException("Cannot connect using provided
parameters");
}
boolean validate = validateConn != null &&
validateConn.booleanValue();
int maxActive = maxConn != null ? maxConn.intValue() : 10;
int maxIdle = minConn != null ? minConn.intValue() : 4;
DataSource source = getDefaultDataSource(host, user, passwd,
port.intValue(), instance, maxActive, maxIdle, validate);
//THIS IS THE ONLY CHANGED ROW - TO INSTANTIATE AN DIFFERENT
DATASTORE
SITOracleDatastore dataStore = new SITOracleDatastore(source,
namespace, schema, new HashMap(), (Boolean)
FIDCOLUMNSASATTRIBUTES.lookUp(params));
//ALE FINE
return dataStore;
}
// Method in the new DATASTORE
@Override
protected FIDMapperFactory buildFIDMapperFactory(JDBCDataStoreConfig
dataStoreConfig) {
if (fidColumnsAsAttributes) {
return new DefaultFIDMapperFactory(true);
} else {
return new DefaultFIDMapperFactory(false);
}
}
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