Java SLDParser类代码示例

import org.geotools.styling.SLDParser; //导入依赖的package包/类
/**
 * Get the style from an sld file.
 * 
 * @param file the SLD file or a companion file.
 * @return the {@link Style} object.
 * @throws IOException
 */
public static Style getStyleFromFile(File file) {
    Style style = null;
    try {
        String name = file.getName();
        if (!name.endsWith("sld")) {
            String nameWithoutExtention = FileUtilities.getNameWithoutExtention(file);
            File sldFile = new File(file.getParentFile(), nameWithoutExtention + ".sld");
            if (sldFile.exists()) {
                file = sldFile;
            } else {
                // no style file here
                return null;
            }
        }

        SLDParser stylereader = new SLDParser(sf, file);
        StyledLayerDescriptor sld = stylereader.parseSLD();
        style = getDefaultStyle(sld);
        return style;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
@Test
public void testLabels() throws IOException {
	SymbolizerFilterVisitor visitor = new SymbolizerFilterVisitor();
	visitor.setIncludeGeometry(false);
	visitor.setIncludeText(true);
	SLDParser parser = new SLDParser(styleFactory);
	parser.setInput(getClass().getResource("point_pointwithdefaultlabel.sld"));
	Style[] styles = parser.readXML();
	Assert.assertEquals(1, styles.length);
	visitor.visit(styles[0]);
	Style copy = (Style) visitor.getCopy();
	FeatureTypeStyle featureTypeStyle = copy.featureTypeStyles().iterator().next();
	Rule rule = featureTypeStyle.rules().iterator().next();
	Iterator<Symbolizer> it = rule.symbolizers().iterator();
	Assert.assertTrue(it.next() instanceof TextSymbolizer);
	Assert.assertFalse(it.hasNext());
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
@Test
public void testGeometries() throws IOException{
	SymbolizerFilterVisitor visitor = new SymbolizerFilterVisitor();
	visitor.setIncludeGeometry(true);
	visitor.setIncludeText(false);
	SLDParser parser = new SLDParser(styleFactory);
	parser.setInput(getClass().getResource("point_pointwithdefaultlabel.sld"));
	Style[] styles = parser.readXML();
	Assert.assertEquals(1, styles.length);
	visitor.visit(styles[0]);
	Style copy = (Style) visitor.getCopy();
	FeatureTypeStyle featureTypeStyle = copy.featureTypeStyles().iterator().next();
	Rule rule = featureTypeStyle.rules().iterator().next();
	Iterator<Symbolizer> it = rule.symbolizers().iterator();
	Assert.assertTrue(it.next() instanceof PointSymbolizer);
	Assert.assertFalse(it.hasNext());
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
@Test
public void testLabelsAndGeometries() throws IOException{
	SymbolizerFilterVisitor visitor = new SymbolizerFilterVisitor();
	visitor.setIncludeGeometry(true);
	visitor.setIncludeText(true);
	SLDParser parser = new SLDParser(styleFactory);
	parser.setInput(getClass().getResource("point_pointwithdefaultlabel.sld"));
	Style[] styles = parser.readXML();
	Assert.assertEquals(1, styles.length);
	visitor.visit(styles[0]);
	Style copy = (Style) visitor.getCopy();
	FeatureTypeStyle featureTypeStyle = copy.featureTypeStyles().iterator().next();
	Rule rule = featureTypeStyle.rules().iterator().next();
	Iterator<Symbolizer> it = rule.symbolizers().iterator();
	Assert.assertTrue(it.next() instanceof PointSymbolizer);
	Assert.assertTrue(it.next() instanceof TextSymbolizer);
	Assert.assertFalse(it.hasNext());
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
@Test
public void testTransformation() throws IOException{
	SymbolizerFilterVisitor visitor = new SymbolizerFilterVisitor();
	visitor.setIncludeGeometry(true);
	visitor.setIncludeText(true);
	SLDParser parser = new SLDParser(styleFactory);
	parser.setInput(getClass().getResource("heatmap.sld"));
	Style[] styles = parser.readXML();
	Assert.assertEquals(1, styles.length);
	visitor.visit(styles[0]);
	Style copy = (Style) visitor.getCopy();
	FeatureTypeStyle featureTypeStyle = copy.featureTypeStyles().iterator().next();
	Assert.assertNotNull(featureTypeStyle.getTransformation());		
	Rule rule = featureTypeStyle.rules().iterator().next();
	Iterator<Symbolizer> it = rule.symbolizers().iterator();
	Assert.assertTrue(it.next() instanceof RasterSymbolizer);
	Assert.assertFalse(it.hasNext());
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
/**
 * Creates a StyledLayerDescriptor object containing a SLD from a string.
 *
 * @param sldData the sld data
 * @return the styled layer descriptor
 */
public static StyledLayerDescriptor createSLDFromString(SLDDataInterface sldData) {
    if ((sldData == null) || (sldData.getSld() == null)) {
        return null;
    }

    StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();

    InputStream stream = new ByteArrayInputStream(sldData.getSld().getBytes());

    SLDParser styleReader = new SLDParser(styleFactory, stream);

    URL resourceLocator = getResourceLocator(sldData);

    sldData.setResourceLocator(resourceLocator);
    setResourcelocator(styleReader, resourceLocator);
    StyledLayerDescriptor sld = null;

    try {
        sld = styleReader.parseSLD();
    } catch (RuntimeException e) {
        String errorMessage = String.format("SLD Parser error : %s",
                sldData.getStyle().toString());
        ConsoleManager.getInstance().error(SLDUtils.class, errorMessage);
        ConsoleManager.getInstance().error(SLDUtils.class, e.getMessage());
    }

    return sld;
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
/**
 * Sets the resource locator so that relative external graphic files can be found.
 *
 * @param styleReader the new resource locator
 * @param url the url
 */
public static void setResourcelocator(SLDParser styleReader, URL url) {
    DefaultResourceLocator resourceLocator = new DefaultResourceLocator();

    resourceLocator.setSourceUrl(url);
    styleReader.setOnLineResourceLocator(resourceLocator);
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
/**
 * Create a Style object from a definition in a SLD document
 *
 * @param sld
 *            the sld file.
 * @return the created {@link Style} or <code>null</code>.
 */
public static Style createFromSLD(final File sld) {
	try {
		final SLDParser stylereader = new SLDParser(styleFactory, sld.toURI().toURL());
		final Style[] style = stylereader.readXML();
		return style[0];

	} catch (final Exception e) {
		ExceptionMonitor.show(null, e, "Problem creating style");
	}
	return null;
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
public static Style[] createFromSLD(File sld) {
    try {
        SLDParser stylereader = new SLDParser(styleFactory, sld.toURI().toURL());
        return stylereader.readXML();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return new Style[0];
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
@Override
public Object convertDomToValue(DomElement parentElement, Object value) throws ConversionException,
        ValidationException {
    final DomElement child = parentElement.getChild(0);
    SLDParser s = new SLDParser(CommonFactoryFinder.getStyleFactory(null), new StringReader(child.toXml()));
    final Style[] styles = s.readXML();
    return styles[0];
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
protected void importSLD() {
	File file = importStyleWizard("Select style layer descriptor 1.0 document","sld","style layer descriptor");
	if( file == null ) return; // cancel
	
	StyleFactory factory = CommonFactoryFinder.getStyleFactory();
	SLDParser sldParser = new SLDParser(factory);

}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
private void readSLD_1_0() {
	StyleFactory factory = CommonFactoryFinder.getStyleFactory();

	StringReader reader = new StringReader(text.getText());
	SLDParser sldParser = new SLDParser(factory, reader);

	Style[] parsed = sldParser.readXML();
	if (parsed != null && parsed.length > 0) {
		style = parsed[0];
	}
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
/**
 * Create a Style object from a definition in a SLD document
 */
private Style createFromSLD(File sld) {
    try {
        SLDParser stylereader = new SLDParser(styleFactory, sld.toURI().toURL());
        Style[] style = stylereader.readXML();
        return style[0];
        
    } catch (Exception e) {
        JExceptionReporter.showDialog(e, "Problem creating style");
    }
    return null;
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
@Override
public Style convert(UserStyleInfo userStyleInfo) throws LayerException {
	IBindingFactory bindingFactory;
	try {
		// create a dummy SLD root
		StyledLayerDescriptorInfo sld = new StyledLayerDescriptorInfo();
		sld.setVersion(SLD_VERSION);
		StyledLayerDescriptorInfo.ChoiceInfo choice = new StyledLayerDescriptorInfo.ChoiceInfo();
		NamedLayerInfo namedLayerInfo = new NamedLayerInfo();
		namedLayerInfo.setName(DUMMY_NAMED_LAYER);
		NamedLayerInfo.ChoiceInfo userChoice = new NamedLayerInfo.ChoiceInfo();
		userChoice.setUserStyle(userStyleInfo);
		namedLayerInfo.getChoiceList().add(userChoice);
		choice.setNamedLayer(namedLayerInfo);
		sld.getChoiceList().add(choice);

		// force through Geotools parser
		bindingFactory = BindingDirectory.getFactory(StyledLayerDescriptorInfo.class);
		IMarshallingContext marshallingContext = bindingFactory.createMarshallingContext();
		StringWriter sw = new StringWriter();
		marshallingContext.setOutput(sw);
		marshallingContext.marshalDocument(sld);

		SLDParser parser = new SLDParser(styleFactory, filterService.getFilterFactory());
		parser.setOnLineResourceLocator(new ResourceServiceBasedLocator());
		parser.setInput(new StringReader(sw.toString()));

		Style[] styles = parser.readXML();
		if (styles.length != 0) {
			return styles[0];
		} else {
			throw new LayerException(ExceptionCode.INVALID_USER_STYLE, userStyleInfo.getName());
		}
	} catch (Exception e) {
		throw new LayerException(e, ExceptionCode.INVALID_USER_STYLE, userStyleInfo.getName());
	}
}
 

import org.geotools.styling.SLDParser; //导入依赖的package包/类
/**
 * Parse a file and extract the {@link StyledLayerDescriptor}.
 * 
 * @param file the sld file to parse.
 * @return the styled layer descriptor.
 * @throws IOException
 */
public static StyledLayerDescriptor readStyle( File file ) throws IOException {
    SLDParser stylereader = new SLDParser(sf, file);
    StyledLayerDescriptor sld = stylereader.parseSLD();
    return sld;
}