public Integer getCascadedHopCount(LayerInfo layer) {
if (!(layer.getResource() instanceof WMSLayerInfo)) {
return null;
}
WMSLayerInfo wmsLayerInfo = (WMSLayerInfo) layer.getResource();
Layer wmsLayer;
int cascaded = 1;
try {
wmsLayer = wmsLayerInfo.getWMSLayer(null);
cascaded = 1 + wmsLayer.getCascaded();
} catch (IOException e) {
LOGGER.log(Level.INFO, "Unable to determina WMSLayer cascaded hop count", e);
}
return cascaded;
}
/** Returns true if the layer can be queried */
public boolean isQueryable(LayerInfo layer) {
try {
if (layer.getResource() instanceof WMSLayerInfo) {
WMSLayerInfo info = (WMSLayerInfo) layer.getResource();
Layer wl = info.getWMSLayer(null);
if (!wl.isQueryable()) {
return false;
}
WMSCapabilities caps = info.getStore().getWebMapServer(null).getCapabilities();
OperationType featureInfo = caps.getRequest().getGetFeatureInfo();
if (featureInfo == null || !featureInfo.getFormats().contains("application/vnd.ogc.gml")) {
return false;
}
}
return layer.isQueryable();
} catch (IOException e) {
LOGGER.log(Level.INFO, "Failed to determin if the layer is queryable, assuming it's not", e);
return false;
}
}