32
Copyright © 2014 Open Geospatial Consortium
6.3.2 Direct planning The typical scenario is:
‐ The client gets the capabilities of the server using the GetCapabilities operation GET . ‐ Selects the sensor to be tasked from the GetCapabilities and optionally if more
information is required the DescribeSensor methods GET procedures{sps:procedure}{swes:sensorDescriptionFormat?}. The user then
requests the format of the Tasking parameters needed to submit a task, through the DescribeTasking operation
GET procedures{sps:procedure}tasking.
‐ Then this structure is filled in on the client side, allowing the user to choose the area of interest, the time of interest, as well as other parameters such as the instrument mode.
‐ This structure is then sent to the server as part of a Submit request corresponding to
POST planning. This will return a set of segments representing the acquisitions that have been submitted to fulfill the given request. This will start a new planning task.
‐ After that, the following events are possible: o
The user requests the status of the task using the GetStatus operation GET planning{taskID}, or the complete description of the task using the GetTask
operation GET planning{taskID}segments.
o
The user cancels the task using the Cancel operation DELETE planning{taskID}.
‐ Once the task is finished, which corresponds to all segments involved begin acquired, the user can do the following:
o Get the data describing a given segment, through the GetTask GET
planning{taskID}segments, and the results with the DescribeResultAccess operation GET planning{taskID}results. This will provide the means to
connect to the Download Server in order to get the acquired products.
‐ After assessing these results, validate a given segment using the Validate POST planning{taskID}segments{segmentID} operation.
33
Copyright © 2014 Open Geospatial Consortium
Figure 6-2 Direct planning sequence diagram
sd DirectPlanning
RESET Client RESET Server
Download Server
opt
opt
opt
opt
getCapabilities
describeSensor
describeTasking fillInRequest
submittaskingParameters
getStatustaskID
canceltaskID
getTasktaskID describeResultAccesstaskID
validatetaskID, segmentID
downloadResults
34
Copyright © 2014 Open Geospatial Consortium
6.3.3 Reservation planning
Kategori