/**
* Initiates a retrieval of the model referenced by this placemark. Once the resource is retrieved
* and loaded, this calls <code>{@link #setColladaRoot(ColladaRoot)}</code> to specify this link's
* new network resource, and sends an <code>
* {@link gov.nasa.worldwind.avlist.AVKey#RETRIEVAL_STATE_SUCCESSFUL}</code> property change event
* to this link's property change listeners.
*
* <p>This does nothing if this <code>KMLNetworkLink</code> has no <code>KMLLink</code>.
*
* @param address the address of the resource to retrieve
*/
protected void retrieveModel(String address) throws IOException, XMLStreamException {
Object o = this.parent.getRoot().resolveReference(address);
if (o == null) return;
ColladaRoot root = ColladaRoot.createAndParse(o);
if (root == null) return;
this.setColladaRoot(root);
this.resourceRetrievalTime.set(System.currentTimeMillis());
this.parent.getRoot().requestRedraw();
}
/**
* {@inheritDoc} Overridden to set the link expiration time based on HTTP headers after the image
* has been retrieved.
*/
protected BasicWWTexture initializeTexture() {
BasicWWTexture ret = super.initializeTexture();
if (this.texture != null) {
this.iconRetrievalTime = System.currentTimeMillis();
String path = this.resolveHref();
// Query the KMLRoot for the expiration time.
long expiration = this.parent.getRoot().getExpiration(path);
// Set the Icon's expiration. This has no effect if the refreshMode is not onExpire.
this.parent.getIcon().setExpirationTime(expiration);
}
return ret;
}
