org.geotools.data.ows
Interface Request

All Known Subinterfaces:

DescribeLayerRequest, GetCapabilitiesRequest, GetFeatureInfoRequest, GetLegendGraphicRequest, GetMapRequest, GetStylesRequest, PutStylesRequest

All Known Implementing Classes:

AbstractDescribeLayerRequest, AbstractGetCapabilitiesRequest, AbstractGetFeatureInfoRequest, AbstractGetLegendGraphicRequest, AbstractGetMapRequest, AbstractGetStylesRequest, AbstractPutStylesRequest, AbstractRequest, AbstractWMSRequest, WMS1_0_0.GetCapsRequest, WMS1_0_0.GetFeatureInfoRequest, WMS1_0_0.GetMapRequest, WMS1_1_0.GetCapsRequest, WMS1_1_0.GetFeatureInfoRequest, WMS1_1_0.GetMapRequest, WMS1_1_0.InternalDescribeLayerRequest, WMS1_1_0.InternalGetLegendGraphicRequest, WMS1_1_0.InternalGetStylesRequest, WMS1_1_0.InternalPutStylesRequest, WMS1_1_1.GetCapsRequest, WMS1_1_1.GetFeatureInfoRequest, WMS1_1_1.GetMapRequest, WMS1_3_0.GetCapsRequest, WMS1_3_0.GetFeatureInfoRequest, WMS1_3_0.GetMapRequest

public interface Request

This represents a Request to be made against a Open Web Service.

Author:

rgould

Field Summary

static String	REQUEST Represents the REQUEST parameter
static String	SERVICE
static String	VERSION Represents the VERSION parameter
static String	WMTVER Represents the WMTVER parameter

Method Summary

Response	createResponse(HTTPResponse response) Each Request must know how to create it's counterpart Response.
URL	getFinalURL() Once the properties of the request are configured, this will return the URL that points to the server and contains all of the appropriate name/value parameters.
String	getPostContentType() If this request uses POST, it must specify the content type of the data that is to be written out during performPostOutput().
Properties	getProperties()
void	performPostOutput(OutputStream outputStream) This is called during the connection to the server, allowing this request to write out data to the server by using the provided outputStream.
boolean	requiresPost() This method indicates whether this request needs to transmit some data to the server using POST.
void	setProperty(String name, String value) Sets the name/value property for this request.

Field Detail

REQUEST

static final String REQUEST

Represents the REQUEST parameter

See Also:

Constant Field Values

VERSION

static final String VERSION

Represents the VERSION parameter

See Also:

Constant Field Values

WMTVER

static final String WMTVER

Represents the WMTVER parameter

See Also:

Constant Field Values

SERVICE

static final String SERVICE

See Also:

Constant Field Values

Method Detail

getFinalURL

URL getFinalURL()

Once the properties of the request are configured, this will return the URL that points to the server and contains all of the appropriate name/value parameters.

Returns:

a URL that can be used to issue the request

setProperty

void setProperty(String name,
                 String value)

Sets the name/value property for this request. Note that when using this method, it is up to the programmer to provide their own encoding of value according to the OWS specifications! The code will not do this for you. Different OWS specifications define different ways to do this. There are notorious differences between WMS 1.1.1 (section 6.2.1) and WMS 1.3.0 (section 6.3.2) for example. If value is null, "name" is removed from the properties table.

Parameters:

name - the name of the property

value - the value of the property

getProperties

Properties getProperties()

Returns:

a copy of this request's properties

createResponse

Response createResponse(HTTPResponse response)
                        throws ServiceException,
                               IOException

Each Request must know how to create it's counterpart Response. Given the content type and input stream (containin the response data), this method must return an appropriate Response object.

Parameters:

contentType - the MIME type of the data in the inputStream

inputStream - contains the data from the response

Throws:

ServiceException

IOException

requiresPost

boolean requiresPost()

This method indicates whether this request needs to transmit some data to the server using POST. If this returns true, performPostOutput() will be called during the connection, allowing the data to be written out to the server.

Returns:

true if this request needs POST support, false otherwise.

getPostContentType

String getPostContentType()

If this request uses POST, it must specify the content type of the data that is to be written out during performPostOutput(). For open web services, this is usually "application/xml".

Returns:

the MIME type of the data to be sent during the request

performPostOutput

void performPostOutput(OutputStream outputStream)
                       throws IOException

This is called during the connection to the server, allowing this request to write out data to the server by using the provided outputStream. Implementors of this method do not need to call outputStream.flush() or outputStream.close(). The framework will call them immediately after calling this method.

Parameters:

outputStream -

Throws:

IOException