Examples of org.geotools.gml.producer.FeatureTransformer

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

        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;

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        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();

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        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;

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