Getting a handle on the FieldNameConverter

[Charles Duffy]

Under most circumstances, an ActiveObjects user has a handle on an EntityManager, and can thereby get access to the FieldNameConverter used to map between object fields and row names.

Using JIRA, by contrast, the user has access not to an EntityManager, but to an implementation of com.atlassian.activeobjects.external.ActiveObjects. While this provides access to many of the same methods included in the EntityManager interface, it does not implement getFieldNameConverter or getTableNameConverter -- both of which are very useful if trying to add a higher-level API on top of the (very thin) ActiveObjects interface.

If one already has an entity instance, one can use RawEntity.getEntityManager() to get a handle on an EntityManager from which the table and field name converters can be queried -- but this is of little use if one wishes to implement an interface to use in querying for such instances in the first place.

Can this be accomplished? How?

[Andrey Levchenko]

after spending some time I figured out solution below:

public static String getTableName(String pluginKey, Class clazz){
        PluginAccessor pluginAccessor = ComponentAccessor.getPluginAccessor();
        OsgiPlugin osgiPlugin = ((OsgiPlugin) pluginAccessor.getPlugin(pluginKey));
        BundleContext bundleContext = osgiPlugin.getBundle().getBundleContext();
        
        String filter = String.format("(com.atlassian.plugin.key=%s)", osgiPlugin.getBundle().getSymbolicName());
        
        ServiceReference[] serviceReferences = null;
        
        try {
            serviceReferences = bundleContext.getServiceReferences("com.atlassian.activeobjects.config.ActiveObjectsConfiguration", filter);
        } catch (InvalidSyntaxException ex) {
            //log error here
        }
        if (serviceReferences.length > 0){
            ActiveObjectsConfiguration activeObjectsConfiguration = (ActiveObjectsConfiguration)bundleContext.getService(serviceReferences[0]);
        
            return activeObjectsConfiguration.getNameConverters().getTableNameConverter().getName(clazz);
        } else {
            return null;
        }
    }

[Frédéric Esnault]

Hi Andrey, I'm wondering how you did that. It requires to import package com.atlassian.activeobjects.configuration, which is private to the AO OSGi plugin. I can't get this to work. Do you have an explanation about this ?

[Andrey Levchenko]

Hi Looks like mentioned package is exported through OSGI (According to jira source I have). Which version of jira do you use?

[Frédéric Esnault]

Actually it is confluence. But i confirm the package is private (ao version 0.19.7). Here is a copy of the OSGi console for ao plugin : 29 - ActiveObjects Plugin - OSGi Bundle Archiver-Version Plexus Archiver Atlassian-Plugin-Key com.atlassian.activeobjects.activeobjects-plugin [...] Bundle-ManifestVersion 2 Bundle-Name ActiveObjects Plugin - OSGi Bundle Bundle-SymbolicName com.atlassian.activeobjects.activeobjects-plugin Bundle-Vendor Atlassian Bundle-Version 0.19.7 Created-By 1.6.0_29 (Apple Inc.) Manifest-Version 1.0 Spring-Context *;timeout:=60 Tool Bnd-0.0.311 Export-Package - 6 entries Ignore-Package - 9 entries Import-Package - 98 entries Private-Package - 101 entries com.ctc.wstx.exc version: 0.19.7 org.springframework.web.servlet.view.jasperreports version: 0.19.7 org.springframework.web.servlet.tags version: 0.19.7 com.atlassian.activeobjects.internal.config version: 0.19.7 org.codehaus.stax2.ri.dom version: 0.19.7 [...] com.atlassian.dbexporter version: 0.19.7 com.atlassian.activeobjects.backup version: 0.19.7 org.springframework.web.servlet.view.velocity version: 0.19.7 com.ctc.wstx.dtd version: 0.19.7 ** com.atlassian.activeobjects.config version: 0.19.7 **

[Sebastian Braun]

I have the same Problem here.

[Charles Duffy]

This is additionally complicated by being unable to import either net.java.ao.atlassian or com.atlassian.activeobjects.ao -- putting either of them in bundle-instructions/Import-Package results in a BundleException on startup, presumably because these bundles aren't exported, so I can't just create my own instances of these classes.