public boolean retryRequest(
final IOException exception,
int executionCount,
final HttpContext context) {
if (exception == null) {
throw new IllegalArgumentException("Exception parameter may not be null");
}
if (context == null) {
throw new IllegalArgumentException("HTTP context may not be null");
}
if (executionCount > this.retryCount) {
// Do not retry if over max retry count
return false;
}
if (exception instanceof InterruptedIOException) {
// Timeout
return false;
}
if (exception instanceof UnknownHostException) {
// Unknown host
return false;
}
if (exception instanceof ConnectException) {
// Connection refused
return false;
}
if (exception instanceof SSLException) {
// SSL handshake exception
return false;
}
HttpRequest request = (HttpRequest)
context.getAttribute(ExecutionContext.HTTP_REQUEST);
if(requestIsAborted(request)){
return false;
}
if (handleAsIdempotent(request)) {
// Retry if the request is considered idempotent
return true;
}
Boolean b = (Boolean)
context.getAttribute(ExecutionContext.HTTP_REQ_SENT);
boolean sent = (b != null && b.booleanValue());
if (!sent || this.requestSentRetryEnabled) {
// Retry if the request has not been sent fully or
// if it's OK to retry methods that have been sent
return true;
}
// otherwise do not retry
return false;
}
...