/** @param folder */
public static void saveTriggers(File folder) {
if (list.isEmpty()) {
LOG.warning(
"There are no triggers to persist, "
+ folder.getAbsolutePath()
+ " will not be altered.");
return;
}
if (!folder.isDirectory()) {
LOG.warning(folder.getAbsoluteFile() + " is not a valid trigger folder. Skipped");
return;
}
XStream xstream = FreedomXStream.getXstream();
deleteTriggerFiles(folder);
try {
LOG.config("Saving triggers to file in " + folder.getAbsolutePath());
for (Trigger trigger : list) {
if (trigger.isToPersist()) {
String uuid = trigger.getUUID();
if ((uuid == null) || uuid.isEmpty()) {
trigger.setUUID(UUID.randomUUID().toString());
}
String fileName = trigger.getUUID() + ".xtrg";
FileWriter fstream = new FileWriter(folder + "/" + fileName);
BufferedWriter out = new BufferedWriter(fstream);
out.write(xstream.toXML(trigger)); // persist only the data not the logic
// Close the output stream
out.close();
fstream.close();
}
}
} catch (Exception e) {
LOG.info(e.getLocalizedMessage());
LOG.severe(Freedomotic.getStackTraceInfo(e));
}
}
/** @param folder */
public static synchronized void loadTriggers(File folder) {
XStream xstream = FreedomXStream.getXstream();
// This filter only returns object files
FileFilter objectFileFileter =
new FileFilter() {
public boolean accept(File file) {
if (file.isFile() && file.getName().endsWith(".xtrg")) {
return true;
} else {
return false;
}
}
};
File[] files = folder.listFiles(objectFileFileter);
try {
StringBuilder summary = new StringBuilder();
// print an header for the index.txt file
summary.append("#Filename \t\t #TriggerName \t\t\t #ListenedChannel").append("\n");
if (files != null) {
for (File file : files) {
Trigger trigger = null;
try {
// validate the object against a predefined DTD
String xml =
DOMValidateDTD.validate(
file, Info.getApplicationPath() + "/config/validator/trigger.dtd");
trigger = (Trigger) xstream.fromXML(xml);
} catch (Exception e) {
LOG.log(
Level.SEVERE,
"Trigger file {0} is not well formatted: {1}",
new Object[] {file.getPath(), e.getLocalizedMessage()});
continue;
}
// addAndRegister trigger to the list if it is not a duplicate
if (!list.contains(trigger)) {
if (trigger.isHardwareLevel()) {
trigger.setPersistence(false); // it has not to me stored in root/data folder
addAndRegister(trigger); // in the list and start listening
} else {
if (folder.getAbsolutePath().startsWith(Info.getPluginsPath())) {
trigger.setPersistence(false);
} else {
trigger.setPersistence(true); // not hardware trigger and not plugin related
}
list.add(
trigger); // only in the list not registred. I will be registred only if used in
// mapping
}
} else {
LOG.warning("Trigger '" + trigger.getName() + "' is already in the list");
}
summary
.append(trigger.getUUID())
.append("\t\t")
.append(trigger.getName())
.append("\t\t\t")
.append(trigger.getChannel())
.append("\n");
}
// writing a summary .txt file with the list of commands in this folder
FileWriter fstream = new FileWriter(folder + "/index.txt");
BufferedWriter indexfile = new BufferedWriter(fstream);
indexfile.write(summary.toString());
// Close the output stream
indexfile.close();
} else {
LOG.config("No triggers to load from this folder " + folder.toString());
}
} catch (Exception e) {
LOG.severe("Exception while loading this trigger.\n" + Freedomotic.getStackTraceInfo(e));
}
}