Hi list,
I'm trying to make themes by Geotools on a map service wms (Geoserver).
I'm using the sld.
I added SLD=http://localhost:8080/webGeoTools/sld.xml at the call wms and
it's work fine
but now, I would like to create the file sld in my code java and then pass
it as string to wms by: SLD_BODY = "_________________"
with Geotools how can I create this?
my sld file is:
<StyledLayerDescriptor version="1.0.0">
<NamedLayer>
<Name>test:Province</Name>
<UserStyle>
<Title>title sld</Title>
<FeatureTypeStyle>
<Rule>
<Filter>
<PropertyIsEqualTo>
<PropertyName>NOME_PRO</PropertyName>
<Literal>MILANO</Literal>
</PropertyIsEqualTo>
</Filter>
<PolygonSymbolizer>
<Geometry>
<PropertyName>the_geom</PropertyName>
</Geometry>
<Fill>
<CssParameter
name="fill">#ff0000</CssParameter>
</Fill>
</PolygonSymbolizer>
</Rule>
</FeatureTypeStyle>
</UserStyle>
</NamedLayer>
</StyledLayerDescriptor>
I tried writing this code to get the same file, but I am missing something
....
private String buldSLD() {
String styleAsXml="";
StyledLayerDescriptor sld = new StyledLayerDescriptorImpl();
NamedLayer nameLayer = new NamedLayerImpl();
nameLayer.setName("test:Province");
StyleBuilder builder = new StyleBuilder();
Style style = builder.createStyle();
style.setName("MyStyle");
try {
FilterFactoryImpl factory = new FilterFactoryImpl();
Expression exp1 = builder.attributeExpression("NOME_PRO");
Expression exp2 = builder.attributeExpression("MILANO");
PropertyIsEqualTo eq = factory.equal(exp1, exp2, true);
PolygonSymbolizerImpl pol =
(PolygonSymbolizerImpl)builder.createPolygonSymbolizer(Color.yellow,
Color.gray, 2);
pol.setGeometryPropertyName("the_geom");
Rule rule =builder.createRule(pol);
rule.setFilter(eq);
FeatureTypeStyle st = builder.createFeatureTypeStyle("uno", rule);
FeatureTypeStyle[] fts = new FeatureTypeStyle[1];
fts[0] = st;
style.addFeatureTypeStyle(st);
SLDUserStyleBinding user = new
SLDUserStyleBinding(builder.getStyleFactory());
nameLayer.addStyle(style);
SLDTransformer transform = new SLDTransformer();
styleAsXml = transform.transform(style);
System.out.println(styleAsXml);
styleAsXml = URLEncoder.encode(styleAsXml);
System.out.println(styleAsXml);
} catch(TransformerException e) {
e.printStackTrace();
}
return styleAsXml;
}
then i pass this string with SLD_BODY=
but wms return an error:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE
ServiceExceptionReport SYSTEM
"http://schemas.opengis.net/wms/1.1.1/WMS_exception_1_1_1.dtd";>
<ServiceExceptionReport version="1.1.1" > <ServiceException>
java.lang.NullPointerException
null
</ServiceException></ServiceExceptionReport>
help me!
thanks
Peppe
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