/**
* Accepts a request with registered hosts and if the request contains a cluster name then will
* map all of the hosts onto that cluster.
*
* @param request Request that must contain registered hosts, and optionally a cluster.
* @throws AmbariException
*/
public synchronized void createHosts(Request request) throws AmbariException {
Set<Map<String, Object>> propertySet = request.getProperties();
if (propertySet == null || propertySet.isEmpty()) {
LOG.warn("Received a create host request with no associated property sets");
return;
}
AmbariManagementController controller = getManagementController();
Clusters clusters = controller.getClusters();
Set<String> duplicates = new HashSet<String>();
Set<String> unknowns = new HashSet<String>();
Set<String> allHosts = new HashSet<String>();
Set<HostRequest> hostRequests = new HashSet<HostRequest>();
for (Map<String, Object> propertyMap : propertySet) {
HostRequest hostRequest = getRequest(propertyMap);
hostRequests.add(hostRequest);
if (!propertyMap.containsKey(HOSTGROUP_PROPERTY_ID)) {
createHostResource(clusters, duplicates, unknowns, allHosts, hostRequest);
}
}
if (!duplicates.isEmpty()) {
StringBuilder names = new StringBuilder();
boolean first = true;
for (String hName : duplicates) {
if (!first) {
names.append(",");
}
first = false;
names.append(hName);
}
throw new IllegalArgumentException(
"Invalid request contains" + " duplicate hostnames" + ", hostnames=" + names.toString());
}
if (!unknowns.isEmpty()) {
StringBuilder names = new StringBuilder();
boolean first = true;
for (String hName : unknowns) {
if (!first) {
names.append(",");
}
first = false;
names.append(hName);
}
throw new IllegalArgumentException(
"Attempted to add unknown hosts to a cluster. "
+ "These hosts have not been registered with the server: "
+ names.toString());
}
Map<String, Set<String>> hostClustersMap = new HashMap<String, Set<String>>();
Map<String, Map<String, String>> hostAttributes = new HashMap<String, Map<String, String>>();
Set<String> allClusterSet = new HashSet<String>();
for (HostRequest hostRequest : hostRequests) {
if (hostRequest.getHostname() != null
&& !hostRequest.getHostname().isEmpty()
&& hostRequest.getClusterName() != null
&& !hostRequest.getClusterName().isEmpty()) {
Set<String> clusterSet = new HashSet<String>();
clusterSet.add(hostRequest.getClusterName());
allClusterSet.add(hostRequest.getClusterName());
hostClustersMap.put(hostRequest.getHostname(), clusterSet);
if (hostRequest.getHostAttributes() != null) {
hostAttributes.put(hostRequest.getHostname(), hostRequest.getHostAttributes());
}
}
}
clusters.updateHostWithClusterAndAttributes(hostClustersMap, hostAttributes);
for (String clusterName : allClusterSet) {
clusters.getCluster(clusterName).recalculateAllClusterVersionStates();
}
}
