This is the initial API that I came with for the meta data service client
component.
/**
* Initialize the MetaDataServiceClient. Should be called once before
using the MetaDataServiceClient.
* @throws MetaDataServiceClientExeption
*/
public void initialize () throws MetaDataServiceClientExeption;
/**
* Adds a property key value pair for the relevant cluster of the
specified app
*
* @param appId Application id
* @param clusterId Cluster id
* @param propertyKey Key of the Property
* @param propertyValue Value of the Property
* @throws MetaDataServiceClientExeption
*/
public void addProperty (String appId, String clusterId, String
propertyKey, String propertyValue) throws MetaDataServiceClientExeption;
/**
* Adds a property key value pair for the specified app
*
* @param appId Application id
* @param propertyKey Key of the Property
* @param propertyValue Value of the Property
* @throws MetaDataServiceClientExeption
*/
public void addProperty (String appId, String propertyKey, String
propertyValue) throws MetaDataServiceClientExeption;
/**
* Retrieves the property key value pairs for the relevant cluster of
the specified app
*
* @param appId Application id
* @param clusterId Cluster id
* @return Map of Keys and Values for the specified cluster in the
relevant app. Each key can have multiple Values.
* @throws MetaDataServiceClientExeption
*/
public Map<String, Set<String>> getProperties (String appId, String
clusterId) throws MetaDataServiceClientExeption;
/**
* Retrieves the property key value pairs of the specified app
*
* @param appId Application id
* @return Map of Keys and Values for the specified app. Each key can
have multiple Values.
* @throws MetaDataServiceClientExeption
*/
public Map<String, Set<String>> getProperties (String appId) throws
MetaDataServiceClientExeption;
/**
* Retrieves the property values for the specified key of the relevant
app
*
* @param appId Application id
* @param propertyKey Key of the Property
* @return Set of Values for specified Key of the relevant app.
* @throws MetaDataServiceClientExeption
*/
public Set<String> getProperty (String appId, String propertyKey)
throws MetaDataServiceClientExeption;
/**
* Retrieves the property values for the specified key of the relevant
cluster and app
*
* @param appId Application id
* @param clusterId Cluster id
* @param propertyKey Key of the Property
* @return Set of Values for specified Key of the relevant cluster in
the relevant app.
* @throws MetaDataServiceClientExeption
*/
public Set<String> getProperty (String appId, String clusterId, String
propertyKey) throws MetaDataServiceClientExeption;
/**
* Shutdown the MetaDataServiceClient. Should be called once after
using the client.
* @throws MetaDataServiceClientExeption
*/
public void terminate () throws MetaDataServiceClientExeption;
This is in line with the discussion in the thread [1]. Might need to
add/modify as we go on.
[1]. Extending metadata service with service group
On Wed, Sep 17, 2014 at 3:12 PM, Isuru Haththotuwa <isu...@apache.org>
wrote:
> Hi Devs,
>
> In Service Grouping, we would heavily need to use the meta data service to
> put and get data. Therefore, shall we implement a $subject? Then it can be
> re-used wherever required across Stratos. WDYT?
>
>
> --
> Thanks and Regards,
>
> Isuru H.
> +94 716 358 048
>
> --
> <%2B94%20716%20358%20048>
> Thanks and Regards,
>
> Isuru H.
> <%2B94%20716%20358%20048>
> +94 716 358 048* <http://wso2.com/>*
>
>
> * <http://wso2.com/>*
>
>
>
