com.luciad.ogc.wfs

OGC ServerClass TLcdWFSCommandDispatcher

java.lang.Object

com.luciad.ogc.common.ALcdOGCCommandDispatcher

com.luciad.ogc.common.TLcdOGCCommandDispatcher

com.luciad.ogc.wfs.TLcdWFSCommandDispatcher

All Implemented Interfaces:

ILcdDisposable, AutoCloseable

public class TLcdWFSCommandDispatcher
extends TLcdOGCCommandDispatcher

A command dispatcher class for WCS requests.

See Also:

TLcdOGCCommandDispatcher, ALcdOGCCommandDispatcher

Field Summary

Fields inherited from class com.luciad.ogc.common.TLcdOGCCommandDispatcher

REQUEST, SERVICE

Constructor Summary

Constructors

Constructor and Description
TLcdWFSCommandDispatcher()

Method Summary

Modifier and Type	Method and Description
protected void	handleServiceException(ILcdResponse aResponse, TLcdOGCServiceException aException, ILcdRequest aRequest) Handles a service exception.
protected void	handleUnknownRequest(String aRequest) Called if no request handler can be found for the given request.
protected String	validateService(String aService, String aRequestType, ILcdRequest aRequest) This method allows implementations to validate the "service" parameter of a request.

Methods inherited from class com.luciad.ogc.common.TLcdOGCCommandDispatcher

getRequestHandler, handleRequest, registerRequestHandler

Methods inherited from class com.luciad.ogc.common.ALcdOGCCommandDispatcher

dispose

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.luciad.util.ILcdDisposable

close

Constructor Detail

TLcdWFSCommandDispatcher

public TLcdWFSCommandDispatcher()

Method Detail

handleUnknownRequest

protected final void handleUnknownRequest(String aRequest)
                                   throws TLcdWFSServiceException

Description copied from class: TLcdOGCCommandDispatcher

Called if no request handler can be found for the given request. By default, an exception is thrown of type TLcdOGCServiceException.UNKNOWN_REQUEST; this triggers a call to TLcdOGCCommandDispatcher.handleServiceException(com.luciad.ogc.common.ILcdResponse, com.luciad.ogc.common.TLcdOGCServiceException, com.luciad.ogc.common.ILcdRequest), which by default results in the encoding of an XML service exception report that is sent to the client.

Overrides:

handleUnknownRequest in class TLcdOGCCommandDispatcher

Parameters:

aRequest - The value of the request parameter REQUEST

Throws:

TLcdWFSServiceException

handleServiceException

protected void handleServiceException(ILcdResponse aResponse,
                                      TLcdOGCServiceException aException,
                                      ILcdRequest aRequest)

Description copied from class: TLcdOGCCommandDispatcher

Handles a service exception.

Overrides:

handleServiceException in class TLcdOGCCommandDispatcher

Parameters:

aResponse - The response to which the service exception can be encoded

aException - The service exception to handle

aRequest - The original request that triggered the service exception

validateService

protected String validateService(String aService,
                                 String aRequestType,
                                 ILcdRequest aRequest)
                          throws TLcdOGCServiceException

Description copied from class: TLcdOGCCommandDispatcher

This method allows implementations to validate the "service" parameter of a request. If the parameter is incorrect, and there is no applicable default value, an exception describing the problem should be thrown.

Specific implementations can choose when an exception is to be thrown and when a default value is returned. The default implementation is optimized for WFS compliancy, which results in exceptions in some cases and default values in other cases. Parameters that influence the result are the version and operation name, if they can be derived from the request.

This method can be implemented by specific services to improve exception reporting.

Overrides:

validateService in class TLcdOGCCommandDispatcher

Parameters:

aService - the service parameter to validate, e.g. WFS

aRequestType - the name of the request type, e.g. GetCapabilities

aRequest - the original request from which the service parameter has been extracted

Returns:

The name of the service, which is either aService or a default value that should be used if aService is not correct.

Throws:

TLcdOGCServiceException - in case the parameter is invalid.