Examples of FeatureTransformer

org.apache.hama.ml.util.FeatureTransformer
FeatureTransformer defines the interface to transform the original features to new space. NOTE: the user defined feature transformer must have a constructor with no parameters.
org.geotools.gml.producer.FeatureTransformer
also use FeatureReader!! OutputStream out; FeatureTransformer ft = new FeatureTransformer(); // set the indentation to 4 spaces ft.setIndentation(4); // this will allow Features with the FeatureType which has the namespace // "http://somewhere.org" to be prefixed with xxx... ft.getFeatureNamespaces().declarePrefix("xxx","http://somewhere.org"); // transform ft.transform(collection,out); The above example assumes a homogenous collection of Features whose FeatureType has the namespace "http://somewhere.org" but note that not all DataSources currently provide FeatureTypes with a namespace... There are two other mechanisms for prefixing your Features.
1) Map a specific FeatureType by identity to prefix and nsURI
```
 FeatureType fc; FeatureTransformer ft = new FeatureTransformer(); ft.getFeatureTypeNamespaces().declareNamespace(fc,"xxx","http://somewhere.org"); 
```
2) Provide a default namespace for any Features whose FeatureType either has an empty namespace, OR, has not been mapped using the previous method. This is basically a catch-all mechanism.
```
 FeatureTransformer ft = new FeatureTransformer(); ft.getFeatureTypeNamespaces().declareDefaultNamespace("xxx","http://somewhere.org"); 
```
The collectionNamespace and prefix property refers to the prefix and namespace given to the document root and defualts to wfs,http://www.opengis.wfs. @author Ian Schneider @author Chris Holmes, TOPP @source $URL$ @version $Id$ @todo Add support for schemaLocation

Examples of org.geotools.gml.producer.FeatureTransformer

    collection.add(SimpleFeatureBuilder.build(TYPE, new Object[] { wkt.read("POINT (1 2)"), "name1" }, null));
    collection.add(SimpleFeatureBuilder.build(TYPE, new Object[] { wkt.read("POINT (4 4)"), "name2" }, null));


    SimpleFeatureCollection featureCollection = new ListFeatureCollection(TYPE, collection);
  
    FeatureTransformer transform = new FeatureTransformer();
    transform.setEncoding(Charset.defaultCharset());
    transform.setIndentation(4);
    transform.setGmlPrefixing(true);
      
    // define feature information
    final SimpleFeatureType schema = featureCollection.getSchema();
    String prefix = (String) schema.getUserData().get("prefix");
    String namespace = schema.getName().getNamespaceURI();
    transform.getFeatureTypeNamespaces().declareDefaultNamespace(prefix, namespace);
    transform.addSchemaLocation(prefix, namespace);
    
    String srsName = CRS.toSRS(schema.getCoordinateReferenceSystem());
    if (srsName != null) {
        transform.setSrsName(srsName);
    }
    
    // define feature collection
    transform.setCollectionPrefix("col");
    transform.setCollectionNamespace("urn:org.geotools.xml.example.collection");
    
    // other configuration
    transform.setCollectionBounding(true); // include bbox info
    
    ByteArrayOutputStream xml = new ByteArrayOutputStream();
    transform.transform(featureCollection, xml);
    xml.close();
    
    System.out.println(xml.toString());
    // transformExample end
}

View Full Code Here

Examples of org.geotools.gml.producer.FeatureTransformer

private void transformExample2() throws Exception {
    SimpleFeatureCollection fc = null;
    OutputStream out = null;
    // transformExample2 start
    SimpleFeatureType ft = fc.getSchema();
    FeatureTransformer tx = new FeatureTransformer();
    
    // set the SRS for the entire featureCollection.
    String srsName = CRS.toSRS(ft.getCoordinateReferenceSystem(), true);
    tx.setSrsName(srsName);
    
    // set the namespace and the prefix
    String namespaceURI = ft.getName().getNamespaceURI();
    tx.getFeatureTypeNamespaces().declareNamespace(ft, "wps", namespaceURI);
    
    // also work-around, get the schema of the featureType
    Schema s = SchemaFactory.getInstance(namespaceURI);
    
    // define a schemaLocation and allow thereby validation!
    tx.addSchemaLocation(namespaceURI, s.getURI().toASCIIString());
    
    tx.transform(fc, out);
    // transformExample2 end
}

View Full Code Here

Examples of org.geotools.gml.producer.FeatureTransformer


    private void encodeLegacyGML2(OutputStream out, SimpleFeatureCollection collection)
            throws IOException {
        final SimpleFeatureType TYPE = collection.getSchema();


        FeatureTransformer transform = new FeatureTransformer();
        transform.setIndentation(4);
        transform.setGmlPrefixing(true);


        if (prefix != null && namespace != null) {
            transform.getFeatureTypeNamespaces().declareDefaultNamespace(prefix, namespace);
            transform.addSchemaLocation(prefix, namespace);
            // transform.getFeatureTypeNamespaces().declareDefaultNamespace("", namespace );
        }


        if (TYPE.getName().getNamespaceURI() != null && TYPE.getUserData().get("prefix") != null) {
            String typeNamespace = TYPE.getName().getNamespaceURI();
            String typePrefix = (String) TYPE.getUserData().get("prefix");


            transform.getFeatureTypeNamespaces().declareNamespace(TYPE, typePrefix, typeNamespace);
        } else if (prefix != null && namespace != null) {
            // ignore namespace URI in feature type
            transform.getFeatureTypeNamespaces().declareNamespace(TYPE, prefix, namespace);
        } else {
            // hopefully that works out for you then
        }


        // we probably need to do a wfs feaure collection here?
        transform.setCollectionPrefix(null);
        transform.setCollectionNamespace(null);


        // other configuration
        transform.setCollectionBounding(true);
        transform.setEncoding(encoding);


        // configure additional feature namespace lookup
        transform.getFeatureNamespaces();


        String srsName = CRS.toSRS(TYPE.getCoordinateReferenceSystem());
        if (srsName != null) {
            transform.setSrsName(srsName);
        }


        try {
            transform.transform(collection, out);
        } catch (TransformerException e) {
            throw (IOException) new IOException("Failed to encode feature collection:" + e)
                    .initCause(e);
        }
    }

View Full Code Here

Examples of org.geotools.gml.producer.FeatureTransformer

        prepare(request.getOutputFormat(), featureCollection, request);
        encode(output, featureCollection, request );
    }


    protected FeatureTransformer createTransformer() {
        return new FeatureTransformer();
    }

View Full Code Here

Examples of org.geotools.gml.producer.FeatureTransformer

        prepare(request.getOutputFormat(), featureCollection, request);
        encode(output, featureCollection, request );
    }


    protected FeatureTransformer createTransformer() {
        return new FeatureTransformer();
    }

View Full Code Here

Examples of org.geotools.gml.producer.FeatureTransformer

        OutputStream os = null;
        try {
            os = new FileOutputStream(outFile);


            // let's invoke the transformer
            FeatureTransformer ft = new FeatureTransformer();
            ft.setNumDecimals(16);
            ft.getFeatureNamespaces().declarePrefix("gs",
                    originalSchema.getName().getNamespaceURI());
            ft.transform(curCollection, os);
        } finally {
            os.close();
        }


        return outFile;

View Full Code Here

Examples of org.geotools.gml.producer.FeatureTransformer

        this.compressOutput = formatNameCompressed.equalsIgnoreCase(outputFormat);
        this.results = results;


        FeatureRequest request = results.getRequest();
        GeoServer config = request.getWFS().getGeoServer();
        transformer = new FeatureTransformer();


        FeatureTypeNamespaces ftNames = transformer.getFeatureTypeNamespaces();
        int maxFeatures = request.getMaxFeatures();
        int serverMaxFeatures = config.getMaxFeatures();

View Full Code Here

Examples of org.geotools.gml.producer.FeatureTransformer

        OutputStream os = null;
        try {
            os = new FileOutputStream(outFile);


            // let's invoke the transformer
            FeatureTransformer ft = new FeatureTransformer();
            ft.setNumDecimals(16);
            ft.setNamespaceDeclarationEnabled(false);
            ft.getFeatureNamespaces().declarePrefix("topp",
                    originalSchema.getName().getNamespaceURI());
            ft.transform(curCollection, os);
        } finally {
            os.close();
        }


        return outFile;

View Full Code Here

0 1

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.