com.bbn.openmap.image.wms
Class WmsRequestHandler

java.lang.Object
  com.bbn.openmap.image.ImageServer
      com.bbn.openmap.image.wms.WmsRequestHandler

All Implemented Interfaces:

ImageServerConstants, WMTConstants, PropertyConsumer

Direct Known Subclasses:

DynamicWmsRequestHandler

public class WmsRequestHandler
extends ImageServer
implements ImageServerConstants

Version:

$Header: /cvs/CVS_LEBA/external/openmap/openmap/src/openmap/com/bbn/openmap /wms/WmsRequestHandler.java,v 1.2 2006/03/27 10:51:13 tomrak Exp $

Author:

Adam Dawidowski, wachu, pitek

Field Summary

static java.lang.String

WMSPrefix

Fields inherited from class com.bbn.openmap.image.ImageServer

AntiAliasingProperty, background, BackgroundProperty, doAntiAliasing, formatter, imageFormatters, ImageFormattersProperty, ImageServerLayersProperty, layers, logger, OpenMapPrefix, projectionFactory, propertiesPrefix

Fields inherited from interface com.bbn.openmap.image.ImageServerConstants

AZIMUTH, LAT, LAYERMASK, LAYERS, LON, PAN, PROJTYPE, QUERY, RECENTER, SCALE, X, Y

Fields inherited from interface com.bbn.openmap.image.WMTConstants

BBOX, BGCOLOR, CAPABILITIES, CRS, EXCEPTIONS, FORMAT, GETCAPABILITIES, GETFEATUREINFO, GETLEGENDGRAPHIC, GETMAP, HEIGHT, IMAGEFORMAT_GEOTIFF, IMAGEFORMAT_GIF, IMAGEFORMAT_JPEG, IMAGEFORMAT_PNG, IMAGEFORMAT_PPM, IMAGEFORMAT_SVG, IMAGEFORMAT_TIFF, IMAGEFORMAT_WBMP, INFO_FORMAT, LAYER, MAP, QUERY_LAYERS, REQUEST, SERVICE, SRS, STYLE, STYLES, TRANSPARENT, VERSION, WIDTH, WMTVER

Fields inherited from interface com.bbn.openmap.PropertyConsumer

EditorProperty, initPropertiesProperty, LabelEditorProperty, ScopedEditorProperty

Constructor Summary

WmsRequestHandler(java.lang.String wmsScheme, java.lang.String wmsHostName, int wmsPort, java.lang.String wmsUrlPath, java.util.Properties props)
Creates a new WmsRequestHandler object.

Method Summary

protected void	createWmsLayers() For each layer managed by ImageServer create corresponding IWmsLayer which contains additional information for WMS service about given openmap layer.
CapabilitiesSupport	getCapabilities() Get the CapabilitiesSupport object.
protected byte[]	getFormattedImage(ImageFormatter formatter, int scaledWidth, int scaledHeight) TODO: This method covers the equivalent of a base class and returns the drawing, which is not rescaled.
protected IWmsLayer	getLayerByName(java.lang.String wmsName)
protected Layer	getTopLayerByName(java.lang.String wmsName) Return the top OpenMap Layer for the given wms layer name.
java.lang.String	handleGetCapabilitiesRequest(java.util.Properties requestProperties)
void	handleGetCapabilitiesRequest(java.util.Properties requestProperties, IHttpResponse httpResponse)
void	handleGetFeatureInfoRequest(java.util.Properties requestProperties, IHttpResponse httpResponse) VERSION - checked REQUEST - checked EXCEPTIONS - checked all from GetMap except VERSION and REQUEST QUERY_LAYERS - specific INFO_FORMAT - specific FEATURE_COUNT - specific I,J - specific
byte[]	handleGetLegendGraphicRequest(java.util.Properties requestProperties)
void	handleGetLegendGraphicRequest(java.util.Properties requestProperties, IHttpResponse httpResponse)
byte[]	handleGetMapRequest(java.util.Properties requestProperties)
void	handleGetMapRequest(java.util.Properties requestProperties, IHttpResponse httpResponse)
void	handleRequest(java.util.Properties requestProperties, IHttpResponse httpResponse)
protected void	setRequestParametersOnLayers(java.util.Properties requestProperties) Set the request parameters on all the layers

Methods inherited from class com.bbn.openmap.image.ImageServer

calculateVisibleLayerMask, createGraphics, createImage, createImage, createImage, createImage, createImage, createImage, createImageFile, createImageFromLayers, createImageFromLayers, getBackground, getBackground, getDoAntiAliasing, getFormatter, getFormatters, getFormatters, getLayers, getLayers, getLayers, getMaskedLayers, getProjectionFactory, getProperties, getPropertyInfo, getPropertyPrefix, getTransparent, main, setBackground, setDoAntiAliasing, setFormatter, setFormatter, setFormatters, setLayers, setProjectionFactory, setProperties, setProperties, setProperties, setPropertyPrefix, setTransparent, writeImageFile

Methods inherited from class java.lang.Object

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

Field Detail

WMSPrefix

public static final java.lang.String WMSPrefix

See Also:

Constant Field Values

Constructor Detail

WmsRequestHandler

public WmsRequestHandler(java.lang.String wmsScheme,
                         java.lang.String wmsHostName,
                         int wmsPort,
                         java.lang.String wmsUrlPath,
                         java.util.Properties props)
                  throws java.io.IOException,
                         WMSException

Creates a new WmsRequestHandler object.

Parameters:

wmsScheme - for capabilities description

wmsHostName - for capabilities description

wmsPort - for capabilities description

wmsUrlPath - for capabilities description

props - openmap properties to configure layers

Throws:

java.io.IOException

WMSException

Method Detail

createWmsLayers

protected void createWmsLayers()

For each layer managed by ImageServer create corresponding IWmsLayer which contains additional information for WMS service about given openmap layer. For Layers that already implement IWmsLayer, the instances will be the same.

setRequestParametersOnLayers

protected void setRequestParametersOnLayers(java.util.Properties requestProperties)

Set the request parameters on all the layers

Parameters:

requestProperties -

See Also:

IWmsLayer.setRequestParameters(Properties requestParameters)

getLayerByName

protected IWmsLayer getLayerByName(java.lang.String wmsName)

getTopLayerByName

protected Layer getTopLayerByName(java.lang.String wmsName)

Return the top OpenMap Layer for the given wms layer name.

Parameters:

wmsName -

Returns:

top layer

handleRequest

public void handleRequest(java.util.Properties requestProperties,
                          IHttpResponse httpResponse)
                   throws java.io.IOException,
                          MapRequestFormatException

Parameters:

requestProperties -

httpResponse - output

Throws:

java.io.IOException

MapRequestFormatException

handleGetMapRequest

public void handleGetMapRequest(java.util.Properties requestProperties,
                                IHttpResponse httpResponse)
                         throws java.io.IOException,
                                MapRequestFormatException,
                                WMSException

Parameters:

requestProperties -

httpResponse - output

Throws:

java.io.IOException

MapRequestFormatException

WMSException

handleGetMapRequest

public byte[] handleGetMapRequest(java.util.Properties requestProperties)
                           throws java.io.IOException,
                                  MapRequestFormatException,
                                  WMSException

Parameters:

requestProperties -

Returns:

byte array for image, formatted

Throws:

java.io.IOException

MapRequestFormatException

WMSException

handleGetLegendGraphicRequest

public byte[] handleGetLegendGraphicRequest(java.util.Properties requestProperties)
                                     throws java.io.IOException,
                                            MapRequestFormatException,
                                            WMSException

Throws:

java.io.IOException

MapRequestFormatException

WMSException

handleGetCapabilitiesRequest

public void handleGetCapabilitiesRequest(java.util.Properties requestProperties,
                                         IHttpResponse httpResponse)
                                  throws java.io.IOException,
                                         MapRequestFormatException,
                                         WMSException

Parameters:

requestProperties -

httpResponse - out

Throws:

java.io.IOException

MapRequestFormatException

WMSException

getCapabilities

public CapabilitiesSupport getCapabilities()

Get the CapabilitiesSupport object. The CapabilitiesSupport object can be modified and will be kept as long as the WmsRequestHandler.

Returns:

CapabilitiesSupport for capabilities

handleGetCapabilitiesRequest

public java.lang.String handleGetCapabilitiesRequest(java.util.Properties requestProperties)
                                              throws java.io.IOException,
                                                     MapRequestFormatException,
                                                     WMSException

Parameters:

requestProperties -

Returns:

String describing capabilities

Throws:

java.io.IOException

MapRequestFormatException

WMSException

handleGetLegendGraphicRequest

public void handleGetLegendGraphicRequest(java.util.Properties requestProperties,
                                          IHttpResponse httpResponse)
                                   throws java.io.IOException,
                                          MapRequestFormatException,
                                          WMSException

Parameters:

requestProperties -

httpResponse - out

Throws:

java.io.IOException

MapRequestFormatException

WMSException

handleGetFeatureInfoRequest

public void handleGetFeatureInfoRequest(java.util.Properties requestProperties,
                                        IHttpResponse httpResponse)
                                 throws java.io.IOException,
                                        MapRequestFormatException,
                                        WMSException

• VERSION - checked
• REQUEST - checked
• EXCEPTIONS - checked
• all from GetMap except VERSION and REQUEST
• QUERY_LAYERS - specific
• INFO_FORMAT - specific
• FEATURE_COUNT - specific
• I,J - specific

Parameters:

requestProperties -

httpResponse -

Throws:

java.io.IOException

MapRequestFormatException

WMSException

getFormattedImage

protected byte[] getFormattedImage(ImageFormatter formatter,
                                   int scaledWidth,
                                   int scaledHeight)

TODO: This method covers the equivalent of a base class and returns the drawing, which is not rescaled. To them may be a problem. Scaling has been locked, because the forms are drawing without the alpha channel, and at least it will look odd.

Overrides:

getFormattedImage in class ImageServer

Parameters:

formatter -

scaledWidth -

scaledHeight -

Returns:

byte array of formatted image bytes