org.deegree_impl.clients.wmsclient2.control
Class HighlightingInfoListener

java.lang.Object
  org.deegree_impl.enterprise.control.AbstractListener
      org.deegree_impl.clients.wmsclient2.control.AbstractMapListener
          org.deegree_impl.clients.wmsclient2.control.HighlightingInfoListener

All Implemented Interfaces:

java.util.EventListener, WebListener

public class HighlightingInfoListener

extends AbstractMapListener

This class is for accessing informations about the highlighted polygons A new WFS GetFeature request will be created and performed

Since:

1.1

Version:

$Revision$, 1.0. $Revision$, $Date$

Author:

Andreas Poth, last edited by: $Author$

Field Summary

Fields inherited from class org.deegree_impl.enterprise.control.AbstractListener

Constructor Summary

HighlightingInfoListener()

Method Summary

void	actionPerformed(FormEvent event)
private java.lang.String	createRequest(java.lang.String[] queryLayers, GM_Position[] coords, double[] box) creates a WFS GetFeature request from the passed layers (feature types) and the coordinates.
private GM_Position[]	getCoordinates(RPCStruct struct) calculates the coordinates of the click event.
private java.lang.String[]	getQueryLayers(RPCStruct struct) gets the layer to be highlighted.
private java.net.URL	getResponsibleWFS(java.lang.String queryLayer) returns the URL of the WFS that is responsible for accessing the data of the passed layer/featuretype
protected double	getScale(WMSGetMapRequest mrm) the method returns the scale of the map defined as diagonal size of a pixel at the center of the map.
private FeatureCollection	performGetFeature(java.lang.String request, java.net.URL wfsURL) performs a GetFeature request against the responsible WFS
protected java.util.HashMap	toMap(java.lang.String request) maps a string representation of a request to a HashMap

Methods inherited from class org.deegree_impl.enterprise.control.AbstractListener

getAlternativeNextPage, getNextPage, getRequest, getReturnValue, gotoErrorPage, handle, setAlternativeNextPage, setDefaultAlternativeNextPage, setDefaultNextPage, setNextPage, setReturnValue, toModel

Methods inherited from class java.lang.Object

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

Constructor Detail

HighlightingInfoListener

public HighlightingInfoListener()

Method Detail

actionPerformed

public void actionPerformed(FormEvent event)

Specified by:

actionPerformed in interface WebListener

Overrides:

actionPerformed in class AbstractMapListener

Parameters:

event -

getQueryLayers

private java.lang.String[] getQueryLayers(RPCStruct struct)

gets the layer to be highlighted.

getResponsibleWFS

private java.net.URL getResponsibleWFS(java.lang.String queryLayer)
                                throws ClientException

returns the URL of the WFS that is responsible for accessing the data of the passed layer/featuretype

Parameters:

queryLayer - layer to determine the responsible WFS for data access

Throws:

ClientException

getCoordinates

private GM_Position[] getCoordinates(RPCStruct struct)

calculates the coordinates of the click event.

createRequest

private java.lang.String createRequest(java.lang.String[] queryLayers,
                                       GM_Position[] coords,
                                       double[] box)

creates a WFS GetFeature request from the passed layers (feature types) and the coordinates. The least are used to create the filter conditions.

Parameters:

queryLayers - names of the layers/featuretypes that will be targeted by the request

coords - coordinates to be used as filter conditions (intersect)

box - relevant bounding box

performGetFeature

private FeatureCollection performGetFeature(java.lang.String request,
                                            java.net.URL wfsURL)
                                     throws ClientException

performs a GetFeature request against the responsible WFS

Throws:

ClientException

toMap

protected java.util.HashMap toMap(java.lang.String request)

maps a string representation of a request to a HashMap

getScale

protected double getScale(WMSGetMapRequest mrm)

the method returns the scale of the map defined as diagonal size of a pixel at the center of the map.