DownloadThread.java 文件源码

/**
    * Fully execute a single download request - setup and send the request,
    * handle the response, and transfer the data to the destination file.
    */
   private void executeDownload(State state, AndroidHttpClient client,
    HttpGet request) throws StopRequest, RetryDownload {
InnerState innerState = new InnerState();
byte data[] = new byte[Constants.BUFFER_SIZE];

setupDestinationFile(state, innerState);
addRequestHeaders(innerState, request);

// check just before sending the request to avoid using an invalid
// connection at all
checkConnectivity(state);

HttpResponse response = sendRequest(state, client, request);
handleExceptionalStatus(state, innerState, response);

if (Constants.LOGV) {
    Log.v(Constants.TAG, "received response for " + mInfo.mUri);
}

processResponseHeaders(state, innerState, response);
InputStream entityStream = openResponseEntity(state, response);
transferData(state, innerState, data, entityStream);
   }