private void remove(ManagedApplication ma, List<Instance> instances)
throws UnauthorizedActionException, BulkActionException {
for (Instance instance : instances) {
if (instance.getStatus() != InstanceStatus.NOT_DEPLOYED)
throw new UnauthorizedActionException(
"Instances are still deployed or running. They cannot be removed.");
}
BulkActionException bulkException = new BulkActionException(false);
for (Instance instance : instances) {
if (instance.getParent() != null) {
try {
MsgCmdInstanceRemove message =
new MsgCmdInstanceRemove(InstanceHelpers.computeInstancePath(instance));
ma.getMessagingClient()
.publish(false, MessagingUtils.buildRoutingKeyToAgent(instance), message);
// The instance will be removed once the agent has indicated it was removed.
// See DmMessageProcessor.
} catch (IOException e) {
// The instance does not have any problem, just keep trace of the exception
bulkException.getInstancesToException().put(instance, e);
}
} else {
ma.getApplication().getRootInstances().remove(instance);
}
}
if (!bulkException.getInstancesToException().isEmpty()) {
ma.getLogger().severe(bulkException.getLogMessage(false));
ma.getLogger().finest(bulkException.getLogMessage(true));
throw bulkException;
}
}
private void undeploy(ManagedApplication ma, List<Instance> instances)
throws BulkActionException {
BulkActionException bulkException = new BulkActionException(false);
for (Instance instance : instances) {
try {
MsgCmdInstanceUndeploy message =
new MsgCmdInstanceUndeploy(InstanceHelpers.computeInstancePath(instance));
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;
}
}
/**
* Shutdowns an application.
*
* <p>It means Roboconf deletes every machine it created for this application.
*
* @param applicationName the application name
* @throws InexistingException if the application or the parent instance does not exist
* @throws BulkActionException if an error occurred while terminating machines
*/
public void shutdownApplication(String applicationName)
throws InexistingException, BulkActionException {
ManagedApplication ma = this.appNameToManagedApplication.get(applicationName);
if (ma == null) throw new InexistingException(applicationName);
// Undeploy everything correctly so that we keep the message server clean.
// Also, this is useful for deployments on machines (not just on VM).
BulkActionException bulkException = new BulkActionException(false);
for (Instance instance : ma.getApplication().getRootInstances()) {
if (instance.getStatus() != InstanceStatus.NOT_DEPLOYED)
undeploy(ma, Arrays.asList(instance));
}
if (!bulkException.getInstancesToException().isEmpty()) {
ma.getLogger().severe(bulkException.getLogMessage(false));
ma.getLogger().finest(bulkException.getLogMessage(true));
throw bulkException;
}
cleanMessagingServer(ma);
ma.getLogger().fine("Application " + applicationName + " was successfully shutdown.");
}
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;
}
}