Rajani Karuturi c9e7ccf46e Merge pull request #1615 from nvazquez/nfsConfigKey
CLOUDSTACK-9438: Fix for CLOUDSTACK-9252 - Make NFS version changeable in UIJIRA TICKET: https://issues.apache.org/jira/browse/CLOUDSTACK-9438

### Introduction

From #1361 it was possible to configure NFS version for secondary storage mount.
However, changing NFS version requires inserting an new detail on `image_store_details` table, with `name = 'nfs.version'` and `value = X` where X is desired NFS version, and then restarting management server for changes to take effect.

Our improvement aims to make NFS version changeable from UI, instead of previously described workflow.

### Proposed solution
Basically, NFS version is defined as an image store ConfigKey, this implied:
* Adding a new Config scope: **ImageStore**
* Make `ImageStoreDetailsDao` class to extend `ResourceDetailsDaoBase` and `ImageStoreDetailVO` implement `ResourceDetail`
* Insert `'display'` column on `image_store_details` table
* Extending `ListCfgsCmd` and `UpdateCfgCmd` to support **ImageStore** scope, which implied:
** Injecting `ImageStoreDetailsDao` and `ImageStoreDao` on `ConfigurationManagerImpl` class, on `cloud-server` module.

### Important
It is important to mention that `ImageStoreDaoImpl` and `ImageStoreDetailsDaoImpl` classes were moved from `cloud-engine-storage` to `cloud-engine-schema` module in order to Spring find those beans to inject on `ConfigurationManagerImpl` in `cloud-server` module.

We had this maven dependencies between modules:
* `cloud-server --> cloud-engine-schema`
* `cloud-engine-storage --> cloud-secondary-storage --> cloud-server`

As `ImageStoreDaoImpl` and `ImageStoreDetailsDao` were defined in `cloud-engine-storage`, and they needed in `cloud-server` module, to be injected on `ConfigurationManagerImpl`, if we added dependency from `cloud-server` to `cloud-engine-storage` we would introduce a dependency cycle. To avoid this cycle, we moved those classes to `cloud-engine-schema` module

* pr/1615:
  CLOUDSTACK-9438: Fix for CLOUDSTACK-9252 - Make NFS version changeable in UI

Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
2016-10-27 11:48:23 +05:30
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