Thanks for all Andrea. It worked.

Cheers.
Jose


aaime wrote:
> 
> josegar74 ha scritto:
>> Hi,
>> 
>> I'm parsing a filter like this with geotools
>> 
>> <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc";>
>>      <ogc:PropertyIsEqualTo>
>>      <ogc:Literal>TRUE</ogc:Literal>
>>      <ogc:Function name="During">
>>              ...
>>      </ogc:Function>
>>      </ogc:PropertyIsEqualTo>
>> </ogc:Filter>
>> 
>> 
>> using next code
>> 
>>  Parser parser;
>> 
>>  // create the parser with the filter 1.1 configuration
>>  Configuration configuration = new
>> org.geotools.filter.v1_1.OGCConfiguration();
>> 
>> configuration.getProperties().add(Parser.Properties.PARSE_UNKNOWN_ELEMENTS);
>> 
>> configuration.getProperties().add(Parser.Properties.PARSE_UNKNOWN_ATTRIBUTES);
>>         
>>  parser = new Parser(configuration);
>> 
>>  Filter filter = (Filter) parser.parse(data);
>> 
>> but I'm getting the next Exception
>> 
>> java.lang.RuntimeException: Parsing failed for Function:
>> java.lang.RuntimeException: Unable to find function During
>>      at org.geotools.xml.impl.ParseExecutor.visit(ParseExecutor.java:158)
>>      at
>> org.geotools.xml.impl.BindingWalker$BindingExecutionChain.execute(BindingWalker.java:208)
>>      at org.geotools.xml.impl.BindingWalker.walk(BindingWalker.java:174)
>>      at
>> org.geotools.xml.impl.ElementHandlerImpl.endElement(ElementHandlerImpl.java:222)
>>      at
>> org.geotools.xml.impl.ParserHandler.endElement(ParserHandler.java:582)
>>      at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown
>> Source)
>>      at
>> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown
>> Source)
>>      at
>> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
>> Source)
>>      at
>> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
>> Source)
>>      at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
>>      at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
>>      at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>>      at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>>      at org.geotools.xml.Parser.parse(Parser.java:180)
>>      at org.geotools.xml.Parser.parse(Parser.java:140)
>> 
>> 
>>  I think I have to implement a During class that extends
>> FunctionExpressionImpl, but the problem is ¿how to register this class in
>> geotools so parser doesnt fails? 
> 
> You have to register it in the SPI. If you look in the gt-main module
> sources you'll see that in META-INF there is a text file that lists
> the functions contained in the main module.
> You have to do the same in your module, add a file in the same location,
> with the same name, but listing the names of your functions.
> 
> See here:
> http://svn.osgeo.org/geotools/branches/2.5.x/modules/library/main/src/main/resources/META-INF/services/org.opengis.filter.expression.Function
> 
> Cheers
> Andrea
> 
> 
> -- 
> Andrea Aime
> OpenGeo - http://opengeo.org
> Expert service straight from the developers.
> 
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-OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
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