@Override
public void execute() throws Exception {
Path destinationFile = task.getDestinationFile().toAbsolutePath();
if (!Files.isReadable(destinationFile) || Files.size(destinationFile) == 0) {
String contentType =
HTTPClient.getInstance()
.downloadToFile(
new WebResource(task.getUrl(), task.getReferer()), destinationFile, 0);
if (task.isImage() && !StringUtils.startsWith(contentType, "image/")) {
ErrorManager.getInstance().reportError(String.format("%s is not an image", task.getUrl()));
Files.delete(destinationFile);
}
}
}
public abstract class SubtitlesFinder implements Reconfigurable, Enableable {
private Semaphore semaphore = new Semaphore(1);
@Configurable(defaultValue = "true")
private boolean enabled;
private boolean ready;
@Override
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
protected HTTPClient client = HTTPClient.getInstance();
@Override
public void reconfigure() {
this.ready = false;
try {
try {
customInit();
} catch (Exception e) {
ErrorManager.getInstance().reportThrowable(e);
this.enabled = false;
}
} finally {
this.ready = true;
}
}
public void customInit() throws Exception {}
public void warn(String message) {
ErrorManager.getInstance()
.reportWarning(String.format("%s : %s", getClass().getSimpleName(), message));
}
public abstract FinderQuality getQuality();
public boolean isReady() {
return ready;
}
protected abstract RemoteSubTitles downloadSubtitle(VideoDetails details, Language language)
throws Exception;
public RemoteSubTitles findSubtitles(VideoDetails details, Language language) throws Exception {
while (!isReady()) {
// currently being reconfigured
Thread.sleep(500);
}
semaphore.acquire();
try {
return downloadSubtitle(details, language);
} finally {
semaphore.release();
}
}
}