Examples of org.vfny.geoserver.wms.responses.featureInfo.GetFeatureInfoDelegate

org.vfny.geoserver.wms.responses.featureInfo.GetFeatureInfoDelegate

Base class for GetFeatureInfo delegates responsible of creating GetFeatureInfo responses in different formats.

Subclasses should implement one or more output formats, wich will be returned in a list of mime type strings in getSupportedFormats. For example, a subclass can be created to write one of the following output formats:

text/plain
text/html

This abstract class takes care of executing the request in the sense of taking the GetFeatureInfo request parameters such as query_layers, bbox, x, y, etc., create the gt2 query objects for each featuretype and executing it. This process leads to a set of FeatureResults objects and its metadata, wich will be given to the execute(FeatureTypeInfo[] , FeatureResults[]) method, that a subclass should implement as a matter of setting up any resource/state it needs to later encoding.

So, it should be enough to a subclass to implement the following methods in order to produce the requested output format:

execute(FeatureTypeInfo[], FeatureResults[], int, int)
canProduce(String mapFormat)
getSupportedFormats()
writeTo(OutputStream)

@author Gabriel Roldan, Axios Engineering @author Chris Holmes @version $Id: GetFeatureInfoDelegate.java 11958 2009-04-02 16:43:41Z aaime $


        if (LOGGER.isLoggable(Level.FINER)) {
            LOGGER.finer(new StringBuffer("request format is ").append(requestFormat).toString());
        }


        GetFeatureInfoDelegate curDelegate = null;
        Class delegateClass = null;


        for (Iterator it = delegates.iterator(); it.hasNext();) {
            curDelegate = (GetFeatureInfoDelegate) it.next();


            if (curDelegate.canProduce(requestFormat)) {
                delegateClass = curDelegate.getClass();


                if (LOGGER.isLoggable(Level.FINER)) {
                    LOGGER.finer(new StringBuffer("found GetFeatureInfoDelegate ").append(
                            delegateClass).toString());
                }

    private static GetFeatureInfoDelegate getDelegate(
        GetFeatureInfoRequest request) throws WmsException {
        String requestFormat = request.getInfoFormat();
        LOGGER.finer("request format is " + requestFormat);


        GetFeatureInfoDelegate curDelegate = null;
        Class delegateClass = null;


        for (Iterator it = delegates.iterator(); it.hasNext();) {
            curDelegate = (GetFeatureInfoDelegate) it.next();


            if (curDelegate.canProduce(requestFormat)) {
                delegateClass = curDelegate.getClass();
                LOGGER.finer("found GetFeatureInfoDelegate " + delegateClass);


                break;
            }
        }

Examples of org.vfny.geoserver.wms.responses.featureInfo.GetFeatureInfoDelegate

Related Classes of org.vfny.geoserver.wms.responses.featureInfo.GetFeatureInfoDelegate