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package de.danoeh.antennapod.service.download;
import de.danoeh.antennapod.R;
import java.util.concurrent.Callable;
/** Downloads files */
public abstract class Downloader implements Callable<Downloader> {
private static final String TAG = "Downloader";
protected volatile boolean finished;
protected volatile boolean cancelled;
protected DownloadRequest request;
protected DownloadStatus result;
public Downloader(DownloadRequest request) {
super();
this.request = request;
this.request.setStatusMsg(R.string.download_pending);
this.cancelled = false;
this.result = new DownloadStatus(request, null, false, false, null);
}
protected abstract void download();
public final Downloader call() {
download();
if (result == null) {
throw new IllegalStateException(
"Downloader hasn't created DownloadStatus object");
}
finished = true;
return this;
}
public DownloadRequest getDownloadRequest() {
return request;
}
public DownloadStatus getResult() {
return result;
}
public boolean isFinished() {
return finished;
}
public void cancel() {
cancelled = true;
}
}
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