@Override
public Response handleHelloRequest(Hello message) {
int xid = message.getXid();
messagesMapping.put(xid, message);
try {
int dpid = message.getDpid();
InstanceLocationSpecifier key = getInstanceLocationSpecifier(dpid);
ConnectionInstance value =
(new ConnectionInstance.Builder())
.setDpid(dpid)
.setVersion(message.getVersion())
.setCapabilities(message.getCapabilities())
.build();
instancesMapping.put(key, value);
IProcessingGraph processingGraph =
ApplicationAggregator.getInstance().getProcessingGraph(key);
List<JsonBlock> blocks = null;
List<JsonConnector> connectors = null;
if (processingGraph != null) {
blocks = translateBlocks(processingGraph.getBlocks());
connectors = translateConnectors(processingGraph.getConnectors());
}
SetProcessingGraphRequest processMessage =
new SetProcessingGraphRequest(0, dpid, null, blocks, connectors);
sendMessage(key, processMessage, null);
return okResponse();
} catch (Exception e) {
LOG.warning("Error occured while handling Hello message" + e.toString());
e.printStackTrace();
return internalErrorResponse();
}
}
