public WMSLayerCapabilities getLayerByName(String name) {
if (WWUtil.isEmpty(name)) return null;
List<WMSLayerCapabilities> namedLayers = this.getNamedLayers();
for (WMSLayerCapabilities layer : namedLayers) {
if (layer.getName().equals(name)) return layer;
}
return null;
}
/**
* Returns all named layers in the capabilities document.
*
* @return an unordered list of the document's named layers.
*/
public List<WMSLayerCapabilities> getNamedLayers() {
if (this.getCapabilityInformation() == null
|| this.getCapabilityInformation().getLayerCapabilities() == null) return null;
List<WMSLayerCapabilities> namedLayers = new ArrayList<WMSLayerCapabilities>();
for (WMSLayerCapabilities layer : this.getCapabilityInformation().getLayerCapabilities()) {
namedLayers.addAll(layer.getNamedLayers());
}
return namedLayers;
}
@Override
public String toString() // TODO: Complete this method
{
StringBuilder sb = new StringBuilder(super.toString());
sb.append("LAYERS\n");
for (WMSLayerCapabilities layerCaps : this.getNamedLayers()) {
sb.append(layerCaps.toString()).append("\n");
}
return sb.toString();
}
public Double[] getLayerExtremeElevations(WMSCapabilities caps, String[] layerNames) {
if (caps == null) {
String message = Logging.getMessage("nullValue.WMSCapabilities");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (layerNames == null) {
String message = Logging.getMessage("nullValue.WMSLayerNames");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
Double extremeMin = null;
Double extremeMax = null;
for (String name : layerNames) {
WMSLayerCapabilities layer = caps.getLayerByName(name);
if (layer == null) continue;
Double min = layer.getExtremeElevationMin();
if (min != null && (extremeMin == null || min.compareTo(min) > 0)) extremeMin = min;
Double max = layer.getExtremeElevationMax();
if (max != null && (extremeMax == null || max.compareTo(max) > 0)) extremeMax = max;
}
if (extremeMin != null || extremeMax != null) {
Double[] extremes = new Double[] {null, null};
if (extremeMin != null) extremes[0] = extremeMin;
if (extremeMax != null) extremes[1] = extremeMax;
return extremes;
}
return null;
}
public Long getLayerLatestLastUpdateTime(WMSCapabilities caps, String[] layerNames) {
if (caps == null) {
String message = Logging.getMessage("nullValue.WMSCapabilities");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (layerNames == null) {
String message = Logging.getMessage("nullValue.WMSLayerNames");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
String lastUpdate = null;
for (String name : layerNames) {
WMSLayerCapabilities layer = this.getLayerByName(name);
if (layer == null) continue;
String update = layer.getLastUpdate();
if (update != null
&& update.length() > 0
&& (lastUpdate == null || update.compareTo(lastUpdate) > 0)) lastUpdate = update;
}
if (lastUpdate != null) {
try {
return Long.parseLong(lastUpdate);
} catch (NumberFormatException e) {
String message = Logging.getMessage("generic.ConversionError", lastUpdate);
Logging.logger().warning(message);
}
}
return null;
}
