/**
* Sets the DataContentHandlerFactory. The DataContentHandlerFactory is called first to find
* DataContentHandlers. The DataContentHandlerFactory can only be set once.
*
* <p>If the DataContentHandlerFactory has already been set, this method throws an Error.
*
* @param newFactory the DataContentHandlerFactory
* @exception Error if the factory has already been defined.
* @see javax.activation.DataContentHandlerFactory
*/
public static synchronized void setDataContentHandlerFactory(
DataContentHandlerFactory newFactory) {
if (factory != null) throw new Error("DataContentHandlerFactory already defined");
SecurityManager security = System.getSecurityManager();
if (security != null) {
try {
// if it's ok with the SecurityManager, it's ok with me...
security.checkSetFactory();
} catch (SecurityException ex) {
// otherwise, we also allow it if this code and the
// factory come from the same class loader (e.g.,
// the JAF classes were loaded with the applet classes).
if (DataHandler.class.getClassLoader() != newFactory.getClass().getClassLoader()) throw ex;
}
}
factory = newFactory;
}
