I have an Air application that needs to loop through thousands of URLs to download and save images to the user's local drive. I am able to get through a few hundred but receive the following error:
Error #2044: Unhandled IOErrorEvent:. text=Error #2032: Stream Error.
Others have mentioned that this error means that the URL doesn't exist or is invalid but I can guarantee that the URLs are valid.
Here is how my class is getting called:
var fp:FileProcessor = new FileProcessor(imgPath, dirPath);
fp.addEventListener(Event.COMPLETE, imgDownloadComplete);
fp.startDownload();
And in imgDownloadComplete, after updating the progress bar I am calling:
var fp:FileProcessor = event.currentTarget as FileProcessor;
fp.removeEventListener(Event.COMPLETE, imgDownloadComplete);
fp = null;
Finally, FileProcessor looks like:
public class FileProcessor extends EventDispatcher {
private var urlPath:String;
private var dirPath:String;
private var urlStream:URLStream;
private var fData:ByteArray;
private var file:File;
public function FileProcessor(url:String, path:String) {
this.urlPath = url;
this.dirPath = path;
//////This next line is where the error above points to
urlStream = new URLStream;
urlStream.addEventListener(ProgressEvent.PROGRESS, onProgress);
urlStream.addEventListener(Event.COMPLETE, onComplete);
}
public function startDownload():void {
fData = new ByteArray;
urlStream.load( new URLRequest(this.urlPath) );
}
private function onProgress(event:ProgressEvent):void {
if(urlStream.bytesAvailable == 0) return;
if(urlStream.connected) urlStream.readBytes(fData, fData.length);
}
private function onComplete(event:Event):void {
if(urlStream.connected)
urlStream.close();
var fileStream:FileStream = new FileStream;
file = File.desktopDirectory.resolvePath(this.dirPath);
fileStream.open(file, file.exists ? FileMode.APPEND:FileMode.WRITE);
fileStream.writeBytes(fData);
fileStream.close();
fData.clear();
fData = null;
file = null;
fileStream = null;
urlStream.removeEventListener(ProgressEvent.PROGRESS, onProgress);
urlStream.removeEventListener(Event.COMPLETE, onComplete);
urlStream = null;
dispatchEvent(new Event(Event.COMPLETE));
}
private function dispatchComplete():void {
dispatchEvent(new Event(Event.COMPLETE));
}
}
}
ANY help or pointers that somebody can give would be greatly appreciated. This is my first shot at an Air/Flex application so I am unsure where to look. My company wouldn't purchase the Professional FlexBuilder so I do not have access to the profiler.
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