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Java Source Code / Java Documentation » GIS » GeoServer » org.vfny.geoserver.wms.responses.featureInfo 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.vfny.geoserver.wms.responses.featureInfo.GetFeatureInfoDelegate
      org.vfny.geoserver.wms.responses.featureInfo.AbstractFeatureInfoResponse

All known Subclasses:   org.vfny.geoserver.wms.responses.featureInfo.HTMLTableFeatureInfoResponse,  org.vfny.geoserver.wms.responses.featureInfo.TextFeatureInfoResponse,  org.vfny.geoserver.wms.responses.featureInfo.GmlFeatureInfoResponse,
AbstractFeatureInfoResponse
abstract public class AbstractFeatureInfoResponse extends GetFeatureInfoDelegate (Code)
Abstract class to do the common work of the FeatureInfoResponse subclasses. Subclasses should just need to implement writeTo(), to write the actual response, the executions are handled here, figuring out where on the map the pixel is located.

Would be nice to have some greater control over the pixels that are selected. Ideally we would be able to detect things like the size of the mark, so that users need not click on the exact center, or the exact pixel. This is not a big deal for polygons, but is for lines and points. One half solution to make things a bit nicer would be a global parameter to set a wider pixel range.


author:
   James Macgill, PSU
author:
   Gabriel Roldan, Axios
author:
   Chris Holmes, TOPP
author:
   Brent Owens, TOPP


Field Summary
final protected static  LoggerLOGGER
     A logger for this class.
protected  Stringformat
    
protected  Listmetas
    
protected  Listresults
    
protected  ListsupportedFormats
     The formats supported by this map delegate.

Constructor Summary
public  AbstractFeatureInfoResponse()
     Autogenerated proxy constructor.

Method Summary
public  voidabort(GeoServer gs)
    
protected  voidexecute(MapLayerInfo[] requestedLayers, Filter[] filters, int x, int y)
     Performs the execute request using geotools rendering.
public  StringgetContentEncoding()
     Returns the content encoding for the output data.
public  StringgetContentType(GeoServer gs)
     Gets the content type.
public  ListgetSupportedFormats()
     The formats this delegate supports.
abstract public  voidwriteTo(OutputStream out)
     Writes the image to the client.

Field Detail
LOGGER
final protected static Logger LOGGER(Code)
A logger for this class.



format
protected String format(Code)
setted in execute() from the requested output format, it's holded just to be sure that method has been called before getContentType() thus supporting the workflow contract of the request processing



metas
protected List metas(Code)



results
protected List results(Code)



supportedFormats
protected List supportedFormats(Code)
The formats supported by this map delegate.




Constructor Detail
AbstractFeatureInfoResponse
public AbstractFeatureInfoResponse()(Code)
Autogenerated proxy constructor.




Method Detail
abort
public void abort(GeoServer gs)(Code)
DOCUMENT ME!
Parameters:
  gs - app context



execute
protected void execute(MapLayerInfo[] requestedLayers, Filter[] filters, int x, int y) throws WmsException(Code)
Performs the execute request using geotools rendering.
Parameters:
  requestedLayers - The information on the types requested.
Parameters:
  queries - The results of the queries to generate maps with.
Parameters:
  x - DOCUMENT ME!
Parameters:
  y - DOCUMENT ME!
throws:
  WmsException - For any problems.



getContentEncoding
public String getContentEncoding()(Code)
Returns the content encoding for the output data.

Note that this reffers to an encoding applied to the response stream (such as GZIP or DEFLATE), and not to the MIME response type, wich is returned by getContentType()

null since no special encoding is performed whilewrtting to the output stream.



getContentType
public String getContentType(GeoServer gs)(Code)
Gets the content type. This is set by the request, should only be called after execute. GetMapResponse should handle this though.
Parameters:
  gs - server configuration The mime type that this response will generate.
throws:
  IllegalStateException - ifexecute() has not beenpreviously called



getSupportedFormats
public List getSupportedFormats()(Code)
The formats this delegate supports. The list of the supported formats



writeTo
abstract public void writeTo(OutputStream out) throws ServiceException, IOException(Code)
Writes the image to the client.
Parameters:
  out - The output stream to write to.
throws:
  ServiceException - DOCUMENT ME!
throws:
  IOException - DOCUMENT ME!



Methods inherited from org.vfny.geoserver.wms.responses.featureInfo.GetFeatureInfoDelegate
public void abort(Service gs)(Code)(Java Doc)
public boolean canProduce(String mapFormat)(Code)(Java Doc)
public void execute(Request request) throws ServiceException(Code)(Java Doc)
protected void execute(GetFeatureInfoRequest request) throws WmsException(Code)(Java Doc)
abstract protected void execute(MapLayerInfo[] requestedLayers, Filter[] filters, int x, int y) throws WmsException(Code)(Java Doc)
protected GetFeatureInfoRequest getRequest()(Code)(Java Doc)
abstract public List getSupportedFormats()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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