/** Load from preferences file. */
private void loadPrefs() {
final FileWrapper oldPrefsFile =
fileWrapperFactory.create(_userSettingsFolder, OLD_USER_PREFS_FILE_NAME);
final FileWrapper newPrefsFile =
fileWrapperFactory.create(_userSettingsFolder, USER_PREFS_FILE_NAME);
final boolean oldExists = oldPrefsFile.exists();
final boolean newExists = newPrefsFile.exists();
try {
if (oldExists) {
loadOldPrefs(oldPrefsFile);
try {
_settingsCache.add(_lafPrefs);
} catch (DuplicateObjectException ex) {
s_log.error("LAFPreferences object already in cache", ex);
}
savePrefs(newPrefsFile);
if (!oldPrefsFile.delete()) {
s_log.error("Unable to delete old LAF preferences file");
}
} else if (newExists) {
loadNewPrefs(newPrefsFile);
}
} catch (IOException ex) {
s_log.error("Error occured in preferences file", ex);
} catch (XMLException ex) {
s_log.error("Error occured in preferences file", ex);
}
if (_lafPrefs == null) {
_lafPrefs = new LAFPreferences(IdentifierFactory.getInstance().createIdentifier());
_lafPrefs.setLookAndFeelClassName(MetalLookAndFeelController.METAL_LAF_CLASS_NAME);
try {
_settingsCache.add(_lafPrefs);
} catch (DuplicateObjectException ex) {
s_log.error("LAFPreferences object already in cache", ex);
}
}
}
/**
* Load from an XML document but don't ignore duplicate objects.
*
* @param xmlFileName Name of XML file to load from.
* @param cl Class loader to use for object creation.
* @exception FileNotFoundException Thrown if file not found.
* @exception XMLException Thrown if an XML error occurs.
* @exception DuplicateObjectException Thrown if two objects of the same class and with the same
* identifier are added to the cache.
*/
public void load(String xmlFileName, ClassLoader cl)
throws FileNotFoundException, XMLException, DuplicateObjectException {
XMLBeanReader rdr = new XMLBeanReader();
rdr.load(xmlFileName, cl);
for (Iterator it = rdr.iterator(); it.hasNext(); ) {
final Object obj = it.next();
if (!(obj instanceof IHasIdentifier)) {
throw new XMLException("Trying to load object that doesn't implement IHasIdentifier");
// i18n
}
add((IHasIdentifier) obj);
}
}
/**
* Load from a reader over an XML document.
*
* @param rdr Reader over the XML document.
* @param cl Class loader to use for object creation. Pass <TT>null</TT> to use the system
* classloader.
* @param ignoreDuplicates If <tt>true</TT> don't throw a <TT>DuplicateObjectException</TT> but
* rather ignore the attempt to add a duplicate, in this there will be only one object added
* to the cache.
* @exception XMLException Thrown if an XML error occurs.
* @exception DuplicateObjectException Thrown if two objects of the same class and with the same
* identifier are added to the cache.
*/
public void load(Reader rdr, ClassLoader cl, boolean ignoreDuplicates)
throws XMLException, DuplicateObjectException {
XMLBeanReader xmlRdr = new XMLBeanReader();
xmlRdr.load(rdr, cl);
for (Iterator it = xmlRdr.iterator(); it.hasNext(); ) {
final Object obj = it.next();
if (!(obj instanceof IHasIdentifier)) {
throw new XMLException("Trying to load object that doesn't implement IHasIdentifier");
// i18n
}
try {
add((IHasIdentifier) obj);
} catch (DuplicateObjectException ex) {
if (!ignoreDuplicates) {
throw ex;
}
}
}
}
/** Save cached objects. */
void save() {
try {
XMLObjectCache cache = new XMLObjectCache();
try {
if (_rootFolder != null) {
cache.add(_rootFolder);
}
} catch (DuplicateObjectException ignore) {
}
cache.save(_queriesFileName);
} catch (IOException ex) {
final Logger logger = _app.getLogger();
logger.showMessage(
Logger.ILogTypes.ERROR, "Error occured saving queries to " + _queriesFileName);
logger.showMessage(Logger.ILogTypes.ERROR, ex);
} catch (XMLException ex) {
final Logger logger = _app.getLogger();
logger.showMessage(
Logger.ILogTypes.ERROR, "Error occured saving queries to " + _queriesFileName);
logger.showMessage(Logger.ILogTypes.ERROR, ex);
}
}
