com.supermap.services.wms

Class DefaultWMS

java.lang.Object

com.supermap.services.wms.DefaultWMS

All Implemented Interfaces:

WMS

public class DefaultWMS
extends java.lang.Object
implements WMS

The default realization class of the WMS service interface.

The WMS 1.1.1 standard realization based on OGC (Open Geospatial Consortium).

Constructor Summary

Constructors

Constructor and Description
DefaultWMS(Map mapImpl, WMSConfig wmsConfig) Construct the DefaultWMS object according to the description information of the map service component, map name, and the published WMS service.

Method Summary

Methods

Modifier and Type	Method and Description
protected Rectangle2D	getApproximateBounds(Rectangle2D layerBounds, Rectangle2D mapBounds)
WMSCapabilities	getCapabilities(java.lang.String version) Get WMS service meta data.
protected static ServiceDescription	getCapabilitiesHeadInfo() Get the service description information of Capabilities.
WMSFeatureInfo[]	getFeatureInfo(java.lang.String version, WMSQueryParameter wmsQueryParam) Get the feature information.
byte[]	getMap(java.lang.String version, WMSMapParameter wmsMapParam) Get the binary stream of the map tiles.
protected static Point2D	pointPixelToPoint2D(Point point, MapParameter mapParam) Convert the pixel coordinates into 2D geographical coordinates.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultWMS

public DefaultWMS(Map mapImpl,
          WMSConfig wmsConfig)
           throws OGCException

Construct the DefaultWMS object according to the description information of the map service component, map name, and the published WMS service.

Parameters:

mapImpl - the map service component.

wmsConfig - WMS configuration information.

Throws:

OGCException - it occurs the exception when there is map name error.

Method Detail

getCapabilities

public WMSCapabilities getCapabilities(java.lang.String version)
                                throws OGCException

Get WMS service meta data.

The method is used to obtain the service metadata, and the metadata is used to describe the server information content and the acceptable request parameter value, which is a machine readable (and suitable for people to read) description.

Specified by:

getCapabilities in interface WMS

Parameters:

version - WMS service version.

Returns:

WMSCapabilities object.

Throws:

OGCException - OGC exception information.

getApproximateBounds

protected Rectangle2D getApproximateBounds(Rectangle2D layerBounds,
                               Rectangle2D mapBounds)

getCapabilitiesHeadInfo

protected static ServiceDescription getCapabilitiesHeadInfo()
                                                     throws OGCException

Get the service description information of Capabilities.

Returns:

Service description info.

Throws:

OGCException - OGC exception information.

getFeatureInfo

public WMSFeatureInfo[] getFeatureInfo(java.lang.String version,
                              WMSQueryParameter wmsQueryParam)
                                throws OGCException

Get the feature information.

This method is used to get the map element information, and the map is returned by the GetMap operation, therefore, to access the GetFeatureInfo operation should first visit the GetMap operation to obtain the map, the user selects a point in the acquired map (point (i, j)) for more information. The user can specify the pixels to be searched, the layers of the query, and the format of the returned information.

The operation is valid for the layer whose queryable attribute is "1", for other layers the client can not send GetFeatureInfo operation request. When the WMS service receives an unsupported GetFeatureInfo

Specified by:

getFeatureInfo in interface WMS

Parameters:

version - WMS service version.

wmsQueryParam - WMS query parameters.

Returns:

WMSFeatureInfo array.

Throws:

OGCException - OGC exception information.

pointPixelToPoint2D

protected static Point2D pointPixelToPoint2D(Point point,
                          MapParameter mapParam)

Convert the pixel coordinates into 2D geographical coordinates.

Parameters:

point - pixel coordinates.

mapParam - map parameters.

Returns:

2D geographical coordinates.

getMap

public byte[] getMap(java.lang.String version,
            WMSMapParameter wmsMapParam)
              throws OGCException

Get the binary stream of the map tiles.

Specified by:

getMap in interface WMS

Parameters:

version - WMS service version.

wmsMapParam - WMS map parameters.

Returns:

The binary stream of the map tiles.

Throws:

OGCException - OGC exception information.