/**
* Send an HTTP message to a worker and get the result
*
* <p>Note: expects the worker to respond with OK (200) status code.
*
* @param uriRequest The request to make
* @return An InputStream of the response content
*/
private InputStream askWorker(HttpUriRequest uriRequest) {
try {
HttpResponse response = httpClient.execute(uriRequest);
if (response.getStatusLine().getStatusCode() != Response.Status.OK.getStatusCode()) {
StatusLine statusLine = response.getStatusLine();
EntityUtils.consume(response.getEntity());
logger.warn(
"Problem asking worker <"
+ metadata.getWorkerId()
+ "> "
+ "("
+ uriRequest.getURI()
+ "), "
+ "reason ["
+ statusLine.getStatusCode()
+ ": "
+ statusLine.getReasonPhrase()
+ "]");
}
return response.getEntity().getContent();
} catch (IOException e) {
logger.warn("Unable to communicated with worker " + metadata.toString());
throw Throwables.propagate(e);
}
}
/**
* Send an HTTP message to a worker, producing helpful logging if there was a problem
*
* @param uriRequest The request to make
* @param expectedStatus The expected return status
* @return true if the method was successfully delivered & the worker gave the expected response
*/
private boolean tellWorker(HttpUriRequest uriRequest, Response.Status expectedStatus) {
try {
HttpResponse response = httpClient.execute(uriRequest);
if (response.getStatusLine().getStatusCode() != expectedStatus.getStatusCode()) {
StatusLine statusLine = response.getStatusLine();
EntityUtils.consume(response.getEntity());
logger.warn(
"Problem telling worker <"
+ metadata.getWorkerId()
+ "> "
+ "("
+ uriRequest.getURI()
+ "), "
+ "reason ["
+ statusLine.getStatusCode()
+ ": "
+ statusLine.getReasonPhrase()
+ "]");
return false;
}
return true;
} catch (IOException e) {
logger.warn("Unable to communicated with worker " + metadata.toString());
return false;
}
}