/**
* Finds the right IaaS interface for a given instance.
*
* @param ma the managed application
* @param instance the (root) instance associated with a IaaS
* @return a IaaS interface
* @throws IaasException if no IaaS interface was found
*/
public IaasInterface findIaasInterface(ManagedApplication ma, Instance instance)
throws IaasException {
// FIXME: Not very "plug-in-like"
IaasInterface iaasInterface;
try {
String installerName = instance.getComponent().getInstallerName();
if (!"iaas".equalsIgnoreCase(installerName))
throw new IaasException("Unsupported installer name: " + installerName);
Map<String, String> props =
IaasHelpers.loadIaasProperties(ma.getApplicationFilesDirectory(), instance);
iaasInterface = findIaasHandler(props);
if (iaasInterface == null)
throw new IaasException("No IaaS handler was found for " + instance.getName() + ".");
iaasInterface.setIaasProperties(props);
} catch (IOException e) {
throw new IaasException(e);
} catch (InvalidIaasPropertiesException e) {
throw new IaasException(e);
}
return iaasInterface;
}
/**
* Terminates a VM.
*
* @param applicationName the application name
* @param rootInstance the root instance associated with a machine
*/
public void terminateMachine(String applicationName, Instance rootInstance) {
try {
ManagedApplication ma = this.appNameToManagedApplication.get(applicationName);
if (ma == null) {
this.logger.severe(
"Machine "
+ rootInstance.getName()
+ " failed to be resolved for application "
+ applicationName
+ ".");
} else {
this.logger.fine("Machine " + rootInstance.getName() + " is about to be deleted.");
IaasInterface iaasInterface = this.iaasResolver.findIaasInterface(ma, rootInstance);
String machineId = rootInstance.getData().get(Instance.MACHINE_ID);
iaasInterface.terminateVM(machineId);
this.logger.fine("Machine " + rootInstance.getName() + " was successfully deleted.");
rootInstance.setStatus(InstanceStatus.NOT_DEPLOYED);
}
} catch (IaasException e) {
rootInstance.setStatus(InstanceStatus.PROBLEM);
this.logger.severe(
"Machine " + rootInstance.getName() + " could not be deleted. " + e.getMessage());
this.logger.finest(Utils.writeException(e));
} catch (CommunicationToIaasException e) {
rootInstance.setStatus(InstanceStatus.PROBLEM);
this.logger.severe(
"Machine " + rootInstance.getName() + " could not be deleted. " + e.getMessage());
this.logger.finest(Utils.writeException(e));
}
}
private void deploy(ManagedApplication ma, List<Instance> instances) throws BulkActionException {
BulkActionException bulkException = new BulkActionException(true);
for (Instance instance : instances) {
if (instance.getParent() == null) {
try {
IaasInterface iaasInterface = this.iaasResolver.findIaasInterface(ma, instance);
String machineId =
iaasInterface.createVM(
null, this.messageServerIp, instance.getName(), ma.getApplication().getName());
// FIXME: the channel name is skipped here
// As soon as we know what it is useful for, re-add it (it is in the instance)
instance.getData().put(Instance.MACHINE_ID, machineId);
} catch (IaasException e) {
instance.setStatus(InstanceStatus.PROBLEM);
bulkException.getInstancesToException().put(instance, e);
} catch (CommunicationToIaasException e) {
instance.setStatus(InstanceStatus.PROBLEM);
bulkException.getInstancesToException().put(instance, e);
}
} else {
try {
// FIXME: we may have to add the instance on the agent too, just like for root instances
Map<String, byte[]> instanceResources =
ResourceUtils.storeInstanceResources(ma.getApplicationFilesDirectory(), instance);
MsgCmdInstanceDeploy message =
new MsgCmdInstanceDeploy(
InstanceHelpers.computeInstancePath(instance), instanceResources);
ma.getMessagingClient()
.publish(false, MessagingUtils.buildRoutingKeyToAgent(instance), message);
} catch (IOException e) {
// The instance does not have any problem, just keep trace of the exception
bulkException.getInstancesToException().put(instance, e);
}
}
}
if (!bulkException.getInstancesToException().isEmpty()) {
ma.getLogger().severe(bulkException.getLogMessage(false));
ma.getLogger().finest(bulkException.getLogMessage(true));
throw bulkException;
}
}