protected void loadDeviceFile() throws IOException {
device_files_last_mod = SystemTime.getMonotonousTime();
if (device_files_ref != null) {
device_files = device_files_ref.get();
}
if (device_files == null) {
Map map = FileUtil.readResilientFile(getDeviceFile());
device_files = (Map<String, Map<String, ?>>) map.get("files");
if (device_files == null) {
device_files = new HashMap<String, Map<String, ?>>();
}
device_files_ref = new WeakReference<Map<String, Map<String, ?>>>(device_files);
log("Loaded device file for " + getName() + ": files=" + device_files.size());
}
final int GC_TIME = 15000;
new DelayedEvent(
"Device:gc",
GC_TIME,
new AERunnable() {
public void runSupport() {
synchronized (DeviceImpl.this) {
if (SystemTime.getMonotonousTime() - device_files_last_mod >= GC_TIME) {
if (device_files_dirty) {
saveDeviceFile();
}
device_files = null;
} else {
new DelayedEvent("Device:gc2", GC_TIME, this);
}
}
}
});
}
private Map<String, List<Long>> getContents() {
if (contents == null) {
File file = getCacheFile();
if (file.exists()) {
System.out.println("Reading cache: " + file);
contents = FileUtil.readResilientFile(file);
} else {
contents = new HashMap<String, List<Long>>();
}
}
return (contents);
}