public Response execute(Request request) {
Response response = null;
boolean newNode;
do {
SimpleRequest routedRequest =
new SimpleRequest(
request.method(), null, request.path(), request.params(), request.body());
newNode = false;
try {
response = currentTransport.execute(routedRequest);
ByteSequence body = routedRequest.body();
if (body != null) {
stats.bytesSent += body.length();
}
} catch (Exception ex) {
// configuration error - including SSL/PKI - bail out
if (ex instanceof EsHadoopIllegalStateException) {
throw (EsHadoopException) ex;
}
// issues with the SSL handshake, bail out instead of retry, for security reasons
if (ex instanceof javax.net.ssl.SSLException) {
throw new EsHadoopTransportException(ex);
}
// check for fatal, non-recoverable network exceptions
if (ex instanceof BindException
|| ex instanceof NoRouteToHostException
|| ex instanceof UnknownHostException) {
throw new EsHadoopTransportException(ex);
}
if (log.isTraceEnabled()) {
log.trace(
String.format(
"Caught exception while performing request [%s][%s] - falling back to the next node in line...",
currentNode, request.path()),
ex);
}
String failed = currentNode;
failedNodes.put(failed, ex);
newNode = selectNextNode();
log.error(
String.format(
"Node [%s] failed (%s); "
+ (newNode
? "selected next node [" + currentNode + "]"
: "no other nodes left - aborting..."),
failed,
ex.getMessage()));
if (!newNode) {
throw new EsHadoopNoNodesLeftException(failedNodes);
}
}
} while (newNode);
return response;
}
@Override
public byte[] getRequestBody(SimpleRequest request) {
return request.getBody();
}
@Override
public String getRequestUri(SimpleRequest request) {
return request.getUri();
}
@Override
public List<HeaderPair> getRequestHeaders(SimpleRequest request) {
return request.getHeaders();
}
@Override
public String getRequestMethod(SimpleRequest request) {
return request.getMethod();
}
