Examples of org.geotools.styling.StyledLayerDescriptor

org.geotools.styling.StyledLayerDescriptor
Holds styling information (from a StyleLayerDescriptor document).
This interface is bound to version 1.0 of the SLD specification.

For many of us in geotools this is the reason we came along for the ride - a pretty picture. For documentation on the use of this class please consult the SLD 1.0 specification.

We may experiment with our own (or SLD 1.1) ideas but will mark such experiments for you. This is only an issue of you are considering writing out these objects for interoptability with other systems.

General stratagy for supporting multiple SLD versions (and experiments):
- These interfaces will reflect the current published specification
- Our implementations will be BIGGER and more capabile then any one specification
- We cannot defined explicit interfaces tracking each version until we move to Java 5 (perferably GeoAPI would hold these anyways)
- We can provided javadocs indicating extentions, and isolate these using the normal java convention: TextSymbolizer and TextSymbolizer2 (In short you will have to go out of your way to work with a hack or experiment, you won't depend on one by accident)
- We can use Factories (aka SLD1Factory and SLD1_1Factory and SEFactory) to support the creation of conformant datastructures. Code (such as user interfaces) can be parameratized with these factories when they need to confirm to an exact version supported by an individual service. We hope that specifications are always adative, and will be forced to throw unsupported exceptions when functionality is removed from a specification.
@author Ian Turton, CCG @author James Macgill, CCG @author Jody Garnett, Refractions Research @source $URL$ @version SLD 1.0 @since GeoTools 2.0

     * @param style The UserStyle.
     * 
     * @return The StyledLayerDescriptor.
     */
    public static StyledLayerDescriptor sld(Style style) {
        StyledLayerDescriptor sld = styleFactory.createStyledLayerDescriptor();
        
        NamedLayer layer = styleFactory.createNamedLayer();
        layer.setName(style.getName());
        sld.addStyledLayer(layer);
        
        layer.addStyle(style);
        
        return sld;
    }

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                + getLayerId(MockData.BASIC_POLYGONS) + "&sldver=1.0.0");
        
        SLDParser parser = new SLDParser(CommonFactoryFinder.getStyleFactory(null));
        parser.setInput(stream);
        
        StyledLayerDescriptor sld = parser.parseSLD();
        assertEquals(1, sld.getStyledLayers().length);
        
        NamedLayer layer = (NamedLayer) sld.getStyledLayers()[0];
        assertEquals(getLayerId(MockData.BASIC_POLYGONS), layer.getName());
        assertEquals(1, layer.styles().size());
        
        Style style = layer.styles().get(0);
        assertTrue(style.isDefault());

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        InputStream stream = get("wms?service=WMS&version=1.1.1&request=GetStyles&layers=lakesGroup&sldver=1.0.0");
        
        SLDParser parser = new SLDParser(CommonFactoryFinder.getStyleFactory(null));
        parser.setInput(stream);
        
        StyledLayerDescriptor sld = parser.parseSLD();
        assertEquals(1, sld.getStyledLayers().length);
        
        NamedLayer layer = (NamedLayer) sld.getStyledLayers()[0];
        assertEquals("lakesGroup", layer.getName());
        
        // groups have no style
        assertEquals(0, layer.styles().size());
    }

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                + getLayerId(MockData.LAKES) + "&sldver=1.0.0");
        
        SLDParser parser = new SLDParser(CommonFactoryFinder.getStyleFactory(null));
        parser.setInput(stream);
        
        StyledLayerDescriptor sld = parser.parseSLD();
        assertEquals(1, sld.getStyledLayers().length);
        
        NamedLayer layer = (NamedLayer) sld.getStyledLayers()[0];
        assertEquals(getLayerId(MockData.LAKES), layer.getName());
        assertEquals(2, layer.styles().size());
        
        Style style = layer.styles().get(0);
        assertTrue(style.isDefault());

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    @Override
    public Object decode(InputStream input) throws Exception {
        Parser p = new Parser(sldConfiguration);


        // extract the first style in the first sld
        StyledLayerDescriptor sld = (StyledLayerDescriptor) p.parse(input);
        NamedLayer styledLayer = (NamedLayer) sld.getStyledLayers()[0];
        return styledLayer.getStyles()[0];
    }

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    }


    @Override
    public void encode(Object obj, ContentHandler handler) throws Exception {
        StyleFactory sf = CommonFactoryFinder.getStyleFactory(null);
        StyledLayerDescriptor sld = sf.createStyledLayerDescriptor();
        NamedLayer nl = sf.createNamedLayer();
        nl.setName("");
        nl.styles().add((Style) obj);
        sld.setStyledLayers(new StyledLayer[] { nl });


        Encoder e = new Encoder(sldConfiguration);
        e.encode(sld, element, handler);
    }

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    @Override
    public Object decode(Object input) throws Exception {
        Parser p = new Parser(sldConfiguration);


        // extract the first style in the first sld
        StyledLayerDescriptor sld = (StyledLayerDescriptor) p.parse(new StringReader((String) input));
        NamedLayer styledLayer = (NamedLayer) sld.getStyledLayers()[0];
        return styledLayer.getStyles()[0];
    }

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      final byte[] rulesBinary ) {
    final SLDParser parser = new SLDParser(
        CommonFactoryFinder.getStyleFactory(null),
        new ByteArrayInputStream(
            rulesBinary));
    final StyledLayerDescriptor sld = parser.parseSLD();
    final List<StyledLayer> layers = sld.layers();
    if ((layers != null) && !layers.isEmpty()) {
      // drill down to eventually get the rules from the sld
      for (final StyledLayer l : layers) {
        if (l instanceof NamedLayer) {
          final Style[] styles = ((NamedLayer) l).getStyles();

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    fts.add(styleFactory.createFeatureTypeStyle(rules));
    final NamedLayer nl = styleFactory.createNamedLayer();
    nl.setName("");
    nl.addStyle(style);


    final StyledLayerDescriptor sld = styleFactory.createStyledLayerDescriptor();
    sld.setStyledLayers(new StyledLayer[] {
      nl
    });
    final ByteArrayOutputStream baos = new ByteArrayOutputStream();
    final SLDTransformer writer = new SLDTransformer();
    try {

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        final IModel<String> sldModel = new AbstractReadOnlyModel<String>() {
            public String getObject() {
                try {
                    // if file already in css format transform to sld, otherwise load the SLD file
                    if (CssHandler.FORMAT.equals(style.getFormat())) {
                        StyledLayerDescriptor sld = Styles.sld(style.getStyle());
                        return Styles.string(sld, new SLDHandler(), SLDHandler.VERSION_10, true);
                    } else {
                        File file = findStyleFile(style);
                        if (file != null && file.isFile()) {
                            BufferedReader reader = null;

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com.boundlessgeo.geoserver.api.controllers.LayerControllerTest

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