[ZOO-Discuss] Multiple output process

[Gérald Fenoy]

Hi Scott,
forgive my late answer.

Indeed you're right, WPS spec can let you use multiple outputs from a process. Regarding ZOO Kernel it currently supports multiple output only for the Execute Request for the DescribeProcess it won't display the multiple output unfortunately, but it will do soon I hope.

I'm currently working on the ZOO Kernel source code to make it cleaner (in the memory management sense not the code which have to be reworked as quoted by Soeren). I hope to be able to make it available soon on the svn but it take much time than expected.

Hope to hear feedbacks from you about the Execute request using multiple outputs.

Best regards,

Le 28 mai 2010 à 07:37, Scott Henderson a écrit :

> Hi guys,
>  
> According to the WPS spec, we should be able to have multiple outputs for our processes. However, when I add a second output to my process, the first output ends up being included as an input in the describe process. Does Zoo not support multiple processes or is there a problem with my .zcfg? Below is an excerpt from my .zcfg and describe process.
>  
> [TestProcess]
>  Title = TestProcess
>  processVersion = 1
>  storeSupported = true
>  statusSupported = true
>  serviceProvider = TestProcess
>  serviceType = Java
>  <DataInputs>
>   [Param]
>    Title = Param
>    Abstract = GML
>    minOccurs = 1
>    maxOccurs = 1
>    <ComplexData>
>     <Default>
>      mimeType = text/xml
>      encoding = UTF-8
>      schema = http://schemas.opengis.net/wfs/1.1.0/wfs.xsd
>      asReference = true   
>     </Default>
>    </ComplexData>
>  </DataInputs>
>  <DataOutputs>
>   [Output1]
>    Title = Output1
>    <LiteralOutput>
>     DataType = string
>     <Default>
>      mimeType = application/json
>      encoding = UTF-8
>     </Default>
>    </LiteralOutput>
>   [Output2]
>    Title = Output2
>    <LiteralOutput>
>     DataType = string
>     <Default>
>      mimeType = application/json
>      encoding = UTF-8
>     </Default>
>    </LiteralOutput>
>  </DataOutputs>
>  
> Describe Process:
> <wps:ProcessDescriptions xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:wps="http://www.opengis.net/wps/1.0.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wps/1.0.0http://schemas.opengis.net/wps/1.0.0/wpsDescribeProcess_response.xsd" service="WPS" version="1.0.0" xml:lang="en">
>   <ProcessDescription wps:processVersion="1" storeSupported="true" statusSupported="true">
>     <ows:Identifier>TestProcess</ows:Identifier>
>     <ows:Title>TestProcess</ows:Title>
>     <DataInputs>
>       <Input minOccurs="1" maxOccurs="1">
>         <ows:Identifier>Param</ows:Identifier>
>         <ows:Title>Param</ows:Title>
>         <ows:Abstract>GML</ows:Abstract>
>         <ComplexData>
>           <Default>
>             <Format>
>               <mimeType>text/xml</mimeType>
>               <encoding>UTF-8</encoding>
>               <schema>http://schemas.opengis.net/wfs/1.1.0/wfs.xsd</schema>
>             </Format>
>           </Default>
>         </ComplexData>
>       </Input>
>       <Input>
>         <ows:Identifier>Output1</ows:Identifier>
>         <ows:Title>Output1</ows:Title>
>         <LiteralOutput>
>           <ows:DataType ows:reference="http://www.w3.org/TR/xmlschema-2/#string">string</ows:DataType>
>           <Default>
>             <Format>
>               <mimeType>application/json</mimeType>
>               <encoding>UTF-8</encoding>
>             </Format>
>           </Default>
>         </LiteralOutput>
>       </Input>
>     </DataInputs>
>     <ProcessOutputs>
>       <Output>
>         <ows:Identifier>Output2</ows:Identifier>
>         <ows:Title>Output2</ows:Title>
>         <LiteralOutput>
>           <ows:DataType ows:reference="http://www.w3.org/TR/xmlschema-2/#string">string</ows:DataType>
>           <UOMs>
>             <Default>
>               <ows:mimeType>application/json</ows:mimeType>
>               <ows:encoding>UTF-8</ows:encoding>
>             </Default>
>           </UOMs>
>         </LiteralOutput>
>       </Output>
>     </ProcessOutputs>
>   </ProcessDescription>
> </wps:ProcessDescriptions>
>  
> Thanks in advance for your assistance,
>  
> Scott.
> 
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Gérald Fenoy
gerald.fenoy at geolabs.fr


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