[ 
https://issues.apache.org/jira/browse/CLOUDSTACK-9438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15410163#comment-15410163
 ] 

ASF GitHub Bot commented on CLOUDSTACK-9438:
--------------------------------------------

Github user jburwell commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/1615#discussion_r73766528
  
    --- Diff: server/src/com/cloud/storage/ImageStoreDetailsUtil.java ---
    @@ -20,48 +20,68 @@
     
     import javax.inject.Inject;
     
    +import org.apache.cloudstack.framework.config.dao.ConfigurationDao;
    +import org.apache.cloudstack.framework.config.impl.ConfigurationVO;
     import org.apache.cloudstack.storage.datastore.db.ImageStoreDao;
     import org.apache.cloudstack.storage.datastore.db.ImageStoreDetailsDao;
     import org.apache.cloudstack.storage.datastore.db.ImageStoreVO;
     
    +import com.cloud.capacity.CapacityManager;
    +
     public class ImageStoreDetailsUtil {
     
         @Inject
         protected ImageStoreDao imageStoreDao;
         @Inject
         protected ImageStoreDetailsDao imageStoreDetailsDao;
    +    @Inject
    +    protected ConfigurationDao configurationDao;
     
         /**
    -     * Obtain NFS protocol version (if provided) for a store id.<br/>
    -     * It can be set by adding an entry in {@code image_store_details} 
table, providing {@code name=nfs.version} and {@code value=X} (e.g. 3)
    +     * Retrieve global secondary storage NFS version default value
    +     * @return global default value
    +     */
    +    protected Integer getGlobalDefaultNfsVersion(){
    +        ConfigurationVO globalNfsVersion = 
configurationDao.findByName(CapacityManager.ImageStoreNFSVersion.key());
    +        String value = globalNfsVersion.getValue();
    +        return (value != null ? Integer.valueOf(value) : null);
    +    }
    +    /**
    +     * Obtain NFS protocol version (if provided) for a store id, if not 
use default config value<br/>
          * @param storeId image store id
    -     * @return {@code null} if {@code nfs.version} is not found for 
storeId <br/>
    -     * {@code X} if {@code nfs.version} is found found for storeId
    +     * @return {@code null} if {@code secstorage.nfs.version} is not found 
for storeId <br/>
    +     * {@code X} if {@code secstorage.nfs.version} is found found for 
storeId
          */
         public Integer getNfsVersion(long storeId) throws 
NumberFormatException {
    -        String nfsVersion = null;
    +        Integer nfsVersion;
             if (imageStoreDetailsDao.getDetails(storeId) != null){
                 Map<String, String> storeDetails = 
imageStoreDetailsDao.getDetails(storeId);
    --- End diff --
    
    I recognize that this code predates this patch, but it is a double API 
call.  Consider the following refactoring:
    
    ```
    public Integer getNfsVersion(long storeId) throws NumberFormatException {
    
        final Map<String, String> storeDetails = 
imageStoreDetailsDao.getDetails(storeId);
        if (storeDetails != null && 
storeDetails.containsKey(CapacityManager.ImageStoreNFSVersion.key())) {
            final String version = 
storeDetails.get(CapacityManager.ImageStoreNFSVersion.key());
            return (val != null ? Integer.valueOf(val) : null);
        }
    
        return getGlobalDefaultNfsVersion();
    
    }
    ```


> Fix for CLOUDSTACK-9252 - Make NFS version changeable in UI
> -----------------------------------------------------------
>
>                 Key: CLOUDSTACK-9438
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9438
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>            Reporter: Nicolas Vazquez
>            Assignee: Nicolas Vazquez
>
> h3. Introduction
> From [9252|https://issues.apache.org/jira/browse/CLOUDSTACK-9252] 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.
> h3. 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.
> h4. 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 {{ImageStoreDetailsDaoImpl}} 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



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to