org.deegree.ogcwebservices.wms.operation
Class GetMap

java.lang.Object
  org.deegree.ogcwebservices.AbstractOGCWebServiceRequest
      org.deegree.ogcwebservices.wms.operation.WMSRequestBase
          org.deegree.ogcwebservices.wms.operation.GetMap

All Implemented Interfaces:

Serializable, OGCWebServiceRequest

public class GetMap
extends WMSRequestBase

This interface describes the access to the parameters of a GeMap request. It is excpected that there are two kinds of request. The first is the 'normal' HTTP GET request with name-value-pair enconding and the second is a HTTP POST request containing a SLD.

Even it is possible to access the values of a HTTP GET request throught their bean accessor methods the request shall be mapped to a SLD data structure that is accessible using the getSLD().

Version:

$Revision: 18195 $, $Date:20.03.2007$

Author:

Andreas Poth, last edited by: $Author:wanhoff$

See Also:

Serialized Form

Nested Class Summary

static class

GetMap.Layer A Layer object.

Field Summary

LinkedList<String>

warningHeaders A list to transport messages to the WMSHandler that need to be set in HTTP headers.

Constructor Summary

GetMap(String version, String id, GetMap.Layer[] ls, String format, int width, int height, String srs, Envelope boundingBox, boolean transparency, Color bgColor, String exceptions, URL sld_url, StyledLayerDescriptor sld, Map<String,String> vendorSpecificParameter, DimensionValues dimTime, DimensionValues dimElev)

GetMap(String version, String id, GetMap.Layer[] layers, Values elevation, Map<String,Values> sampleDimension, String format, int width, int height, String srs, Envelope boundingBox, boolean transparency, Color bGColor, String exceptions, Values time, URL sldURL, StyledLayerDescriptor sld, Map<String,String> vendorSpecificParameter)
Creates a new GetMapRequest object.

Method Summary

void	addLayers(GetMap.Layer layers) adds the <Layer>
static GetMap	create(Map<String,String> model) creates a GetMapRequest from a HashMap that contains the request parameters as key-value-pairs.
static GetMap	create(String id, Document doc) creates a GetMapRequest from its XML representation as defined in SLD 1.0.0 specification This method does not yet cope with 1.3.0.
static GetMap	create(String version, String id, GetMap.Layer[] layers, Values elevation, Map<String,Values> sampleDimension, String format, int width, int height, String srs, Envelope boundingBox, boolean transparency, Color bGColor, String exceptions, Values time, URL sldURL, StyledLayerDescriptor sld, Map<String,String> vendorSpecificParameter) creates a WTSGetViewRequest from a set of parameters and builds up the complete SLD.
static GetMap	createGetMapRequest(AbstractDataSource ds, GetMap request, String style, String layer) creates a getMap request for requesting a cascaded remote WMS considering the getMap request and the filterconditions defined in the submitted DataSource object The request will be encapsualted within a OGCWebServiceEvent.
static GetMap.Layer	createLayer(String name, String style) creates a Layer object beacuse of the inner class construct.
Color	getBGColor() The optional BGCOLOR parameter specifies the color to be used as the background of the map.
Envelope	getBoundingBox() The required BBOX parameter allows a Client to request a particular Bounding Box.
DimensionValues	getDimElev()
DimensionValues	getDimTime()
Values	getElevation() Some geospatial information may be available at multiple elevations.
String	getExceptions() The optional EXCEPTIONS parameter states the manner in which errors are to be reported to the client.
String	getFormat() The FORMAT parameter specifies the output format of the response to an operation.
int	getHeight() HEIGHT specifies the number of pixels between the minimum and maximum Y values.
GetMap.Layer[]	getLayers() The required LAYERS parameter lists the map layer(s) to be returned by this GetMap request.
String	getRequestParameter() returns the URI of a HTTP GET request.
Map<String,Values>	getSampleDimension() Some geospatial information may be available at other dimensions (for example, satellite images in different wavelength bands).
URL	getSLD_URL()
String	getSrs() The required SRS parameter states which Spatial Reference System applies to the values in the BBOX parameter.
StyledLayerDescriptor	getStyledLayerDescriptor()
Values	getTime() This specification is based on [ISO 8601:1988(E)]; it extends ISO 8601 in the following ways: It defines a syntax for expressing the start, end and periodicity of a data collection.
boolean	getTransparency() The optional TRANSPARENT parameter specifies whether the map background is to be made transparent or not.
URL	getWFS_URL()
int	getWidth() WIDTH specifies the number of pixels to be used between the minimum and maximum X values (inclusive) in the BBOX parameter.
void	setBoundingBox(Envelope boundingBox)
void	setDimElev(DimensionValues dimElev)
void	setDimTime(DimensionValues dimTime)
void	setFormat(String format) sets the format
void	setHeight(int height)
void	setLayers(GetMap.Layer[] layers) sets the <Layer>
void	setSrs(String srs) sets the srs
void	setWidth(int width)
String	toString()

Methods inherited from class org.deegree.ogcwebservices.wms.operation.WMSRequestBase

getServiceName

Methods inherited from class org.deegree.ogcwebservices.AbstractOGCWebServiceRequest

getId, getParam, getParamAsInt, getParamValues, getRequiredParam, getVendorSpecificParameter, getVendorSpecificParameters, getVersion

Methods inherited from class java.lang.Object

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

Field Detail

warningHeaders

public LinkedList<String> warningHeaders

A list to transport messages to the WMSHandler that need to be set in HTTP headers.

Constructor Detail

GetMap

GetMap(String version,
       String id,
       GetMap.Layer[] layers,
       Values elevation,
       Map<String,Values> sampleDimension,
       String format,
       int width,
       int height,
       String srs,
       Envelope boundingBox,
       boolean transparency,
       Color bGColor,
       String exceptions,
       Values time,
       URL sldURL,
       StyledLayerDescriptor sld,
       Map<String,String> vendorSpecificParameter)

Creates a new GetMapRequest object.

Parameters:

version -

id -

layers -

elevation -

sampleDimension -

format -

width -

height -

srs -

boundingBox -

transparency -

bGColor -

exceptions -

time -

sldURL -

sld -

vendorSpecificParameter -

GetMap

public GetMap(String version,
              String id,
              GetMap.Layer[] ls,
              String format,
              int width,
              int height,
              String srs,
              Envelope boundingBox,
              boolean transparency,
              Color bgColor,
              String exceptions,
              URL sld_url,
              StyledLayerDescriptor sld,
              Map<String,String> vendorSpecificParameter,
              DimensionValues dimTime,
              DimensionValues dimElev)

Parameters:

version -

id -

ls -

format -

width -

height -

srs -

boundingBox -

transparency -

bgColor -

exceptions -

sld_url -

sld -

vendorSpecificParameter -

dimTime -

dimElev -

Method Detail

create

public static GetMap create(String version,
                            String id,
                            GetMap.Layer[] layers,
                            Values elevation,
                            Map<String,Values> sampleDimension,
                            String format,
                            int width,
                            int height,
                            String srs,
                            Envelope boundingBox,
                            boolean transparency,
                            Color bGColor,
                            String exceptions,
                            Values time,
                            URL sldURL,
                            StyledLayerDescriptor sld,
                            Map<String,String> vendorSpecificParameter)

creates a WTSGetViewRequest from a set of parameters and builds up the complete SLD.

Parameters:

version - Request version.

layers - list of one or more map layers. Optional if SLD parameter is present. Contains list of one rendering style per requested layer. Optional if SLD parameter is present.

elevation - Elevation of layer desired.

sampleDimension - Value of other dimensions as appropriate.

format - Output format of map.

width - Width in pixels of map picture.

height - Height in pixels of map picture.

srs - the requested Spatial Reference System.

boundingBox - Bounding box corners (lower left, upper right) in SRS units.

transparency - Background transparency of map.

bGColor - Hexadecimal red-green-blue color value for the background color.

exceptions - The format in which exceptions are to be reported by the WMS.

time - Time value of layer desired

sld - Styled Layer Descriptor

id - an unique ID of the request

sldURL -

vendorSpecificParameter - Vendor Specific Parameter

Returns:

an instance of GetMapRequest

createGetMapRequest

public static GetMap createGetMapRequest(AbstractDataSource ds,
                                         GetMap request,
                                         String style,
                                         String layer)

creates a getMap request for requesting a cascaded remote WMS considering the getMap request and the filterconditions defined in the submitted DataSource object The request will be encapsualted within a OGCWebServiceEvent.

Parameters:

ds -

request -

style -

layer -

Returns:

GetMap request object

create

public static GetMap create(Map<String,String> model)
                     throws InconsistentRequestException,
                            XMLParsingException,
                            MalformedURLException

creates a GetMapRequest from a HashMap that contains the request parameters as key-value-pairs. Keys are expected to be in upper case notation.

Parameters:

model - HashMap containing the request parameters

Returns:

an instance of GetMapRequest

Throws:

InconsistentRequestException

XMLParsingException

MalformedURLException

create

public static GetMap create(String id,
                            Document doc)
                     throws XMLParsingException,
                            InvalidSRSException,
                            InconsistentRequestException

creates a GetMapRequest from its XML representation as defined in SLD 1.0.0 specification

This method does not yet cope with 1.3.0.

Parameters:

id - an unique id of the request

doc - the document tree

Returns:

an instance of GetMapRequest

Throws:

XMLParsingException

InvalidSRSException

InconsistentRequestException

getFormat

public String getFormat()

The FORMAT parameter specifies the output format of the response to an operation.

An OGC Web CapabilitiesService may offer only a subset of the formats known for that type of operation, but the server shall advertise in its Capabilities XML those formats it does support and shall accept requests for any format it advertises. A CapabilitiesService Instance may optionally offer a new format not previously offered by other instances, with the recognition that clients are not required to accept or process an unknown format. If a request contains a Format not offered by a particular server, the server shall throw a CapabilitiesService Exception (with code "InvalidFormat").

Returns:

the output format

setFormat

public void setFormat(String format)

sets the format

Parameters:

format - the requested output-format

getLayers

public GetMap.Layer[] getLayers()

The required LAYERS parameter lists the map layer(s) to be returned by this GetMap request. The value of the LAYERS parameter is a comma-separated list of one or more valid layer names. Allowed layer names are the character data content of any element in the Capabilities XML.

A WMS shall render the requested layers by drawing the leftmost in the list bottommost, the next one over that, and so on.

Each layer is associated to a style. Styles are also is encoded as a comma- seperated list within the GetMap request.

The required STYLES parameter lists the style in which each layer is to be rendered. There is a one-to-one correspondence between the values in the LAYERS parameter and the values in the STYLES parameter. Because of this layer-style combinations are returned coupled within an array of Layer- objects. Each map in the list of LAYERS is drawn using the corresponding style in the same position in the list of STYLES. Each style Name shall be one that was defined in the element of a