/**
* Creates a new instance. This can't be called outside of container b/c agents have no refs to
* the singleton container. So we can be sure this method is going to create services just once.
*
* @param c Reference to the container.
* @return The sole instance.
* @throws NullPointerException If the reference to the {@link Container} is <code>null</code>.
*/
public static PixelsServicesFactory getInstance(Container c) {
if (c == null) throw new NullPointerException(); // An agent called this method?
if (singleton == null) {
registry = c.getRegistry();
singleton = new PixelsServicesFactory();
// Retrieve the maximum heap size.
MemoryUsage usage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
String message = "Heap memory usage: max " + usage.getMax();
registry.getLogger().info(singleton, message);
// percentage of memory used for caching.
maxSize = (int) (RATIO * usage.getMax()) / FACTOR;
}
return singleton;
}
/**
* Checks if the rendering controls are still active. Shuts the inactive ones.
*
* @param context Reference to the registry. To ensure that agents cannot call the method. It must
* be a reference to the container's registry.
*/
public static void checkRenderingControls(Registry context) {
// TODO Auto-generated method stub
if (!(context.equals(registry)))
throw new IllegalArgumentException("Not allow to access method.");
RenderingControlProxy proxy;
Entry<Long, RenderingControl> e;
Iterator<Entry<Long, RenderingControl>> i = singleton.rndSvcProxies.entrySet().iterator();
Long value = (Long) context.lookup(LookupNames.RE_TIMEOUT);
long timeout = 60000; // 1min
if (value != null && value.longValue() > timeout) timeout = value.longValue();
Logger logger = context.getLogger();
while (i.hasNext()) {
e = i.next();
proxy = (RenderingControlProxy) e.getValue();
if (!proxy.isProxyActive(timeout)) {
if (!proxy.shutDown(true))
logger.info(singleton, "Rendering Engine shut down: PixelsID " + e.getKey());
}
}
}
/**
* Sets the file to edit. If the file cannot be read by {@link TreeModelFactory#getTree()} then
* the state of this model is re-set to {@link Editor#NEW}.
*
* @param file The file to edit.
* @return See above.
*/
boolean setFileToEdit(File file) {
if (file == null) {
fileToEdit = null;
state = Editor.NEW;
fileName = EditorFactory.BLANK_MODEL;
return false;
}
TreeModel treeModel = null;
// try opening file as recognised OMERO.editor file (pro.xml or cpe.xml)
try {
treeModel = TreeModelFactory.getTree(file);
fileToEdit = file;
} catch (ParsingException e) {
// may get a parsing exception simply because the file was not
// recognised as Editor File..
Registry reg = EditorAgent.getRegistry();
UserNotifier un = reg.getUserNotifier();
// ... try opening as ANY xml file
try {
treeModel = TreeModelFactory.getTreeXml(file);
// if this worked, we have an XML file converted to cpe.xml
// .. tell user..
un.notifyInfo(
"File not recognised",
"File was converted from an unrecognised format into\n"
+ "OMERO.editor's cpe.xml format.\nOverwriting the "
+ "original file will erase the original XML format.");
// must avoid overwriting the original file...
// 'Save' won't work.
if (fileID > 0) { // try to read a file downloaded
file.delete();
}
fileToEdit = null;
setFileAnnotationData(null);
} catch (ParsingException ex) {
LogMessage message = new LogMessage();
message.print(ex);
reg.getLogger().error(this, message);
// ...and notify the user. Use the exception message.
String errMsg = ex.getMessage();
un.notifyInfo("File Failed to Open", errMsg);
}
}
if (treeModel == null) {
fileToEdit = null;
state = Editor.NEW;
fileName = EditorFactory.BLANK_MODEL;
return false;
}
fileName = file.getName();
browser.setTreeModel(treeModel);
state = Editor.READY;
return true;
}