Github user jburwell commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1773#discussion_r90480678
--- Diff: server/src/com/cloud/template/TemplateManagerImpl.java ---
@@ -1176,6 +1176,23 @@ public boolean deleteTemplate(DeleteTemplateCmd cmd)
{
throw new InvalidParameterValueException("unable to find
template with id " + templateId);
}
+ List<VMInstanceVO> vmInstanceVOList;
+ if(cmd.getZoneId() != null) {
+ vmInstanceVOList =
_vmInstanceDao.listNonExpungedByZoneAndTemplate(cmd.getZoneId(), templateId);
+ }
+ else {
+ vmInstanceVOList =
_vmInstanceDao.listNonExpungedByTemplate(templateId);
+ }
+ if(!cmd.isForced() &&
CollectionUtils.isNotEmpty(vmInstanceVOList)) {
+ StringBuilder s = new StringBuilder("Unable to delete
template with id: " + templateId + " because some VM instances are using it. ");
+ for (VMInstanceVO elm : vmInstanceVOList) {
+ s.append(elm.getInstanceName() + ", ");
+ }
+
+ s_logger.warn(s.substring(0,s.length()-2));
+ throw new
InvalidParameterValueException(s.substring(0,s.length()-2));
--- End diff --
Lines 1187-1193 should replaced with the following to be DRY and improve
clarity:
```java
final String message = String.format("Unable to delete template with id:
%1$s because VM instances: [%2$s] are using it.", templateId,
Joiner.on(",").join(vmInstanceVOList));
s_logger.warn(message);
throw new InvalidParameterValueException(message);
```
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