Ibm Rtc server-side custom attribute set value.
Pavel Cikota (13●6●10)
| asked Oct 09 '17, 5:41 a.m.
edited Apr 17 '18, 8:20 a.m. by Ralph Schoon (63.3k●3●36●46) Hello! I try set value of enumeration type of Work Item on pre-condition on server-side plugin according this post , but I need to save a value of list. <o:p> </o:p>
If I understood correct, I need set value by workItem.setValue(IAttribute attr, Object val), where workItem is IWorkItem, and val is Identifier (for Enumeration Type of attribute). <o:p> </o:p>
I have found needed attribute, but I don't know, how found needed Identifier value (I have a text display name of needed value, or literal-link as simple text (String).) <o:p> </o:p>
Use this code to found needed Identifier, but when I try to get Enumeration (enumeration = (Enumeration) enumerationService.resolveEnumeration(attrHandle); ) - my plugin falling down. <o:p> </o:p>
public Identifier getVaLByString(String strVal, IAttribute attr, IWorkItem wi) { <o:p> </o:p>
IAttributeHandle attrHandle = getAttrHandle(attr, wi); <o:p> </o:p> EnumerationService enumerationService = new EnumerationService(); <o:p> </o:p> Enumeration enumeration = (Enumeration) enumerationService.resolveEnumeration(attrHandle); //FAIL, Plugin Falling down <o:p> </o:p> // Enumeration enumeration = (Enumeration) enumerationService.resolveEnumeration(attr); // FAIL TOO! <o:p> </o:p> List literals = enumeration.getEnumerationLiterals(); <o:p> </o:p> <o:p> </o:p> for (Iterator iterator = literals.iterator(); iterator.hasNext();) { //literalsParse <o:p> </o:p> ILiteral iLiteral = (ILiteral) iterator.next(); <o:p> </o:p> if (iLiteral.getIdentifier2().getStringIdentifier().equalsIgnoreCase(strVal)) return iLiteral.getIdentifier2(); <o:p> </o:p> } //literalsParse <o:p> </o:p> return null; <o:p> </o:p> } <o:p> </o:p>
private IAttributeHandle getAttrHandle(IAttribute aT, IWorkItem wI) throws TeamRepositoryException { //getAttrHandle_WORK FINE! <o:p> </o:p> IAttributeHandle out = null; <o:p> </o:p> <o:p> </o:p> List<IAttributeHandle> listHandle = wI.getCustomAttributes(); <o:p> </o:p> IAttribute cA = null; <o:p> </o:p> <o:p> </o:p> for (IAttributeHandle cHandle : listHandle) { <o:p> </o:p> IRepositoryItemService itemService = getService(IRepositoryItemService.class); <o:p> </o:p> cA = (IAttribute) itemService.fetchItem(cHandle, IRepositoryItemService.COMPLETE); <o:p> </o:p> <o:p> </o:p> if (cA.equals(aT) || cA == aT || cA.getDisplayName().equals(aT.getDisplayName())) <o:p> </o:p> return cHandle; <o:p> </o:p> } <o:p> </o:p> <o:p> </o:p> return out; <o:p> </o:p> } //getAttrHandle <o:p> </o:p>
A lot of examples uses Client library, but it doesn't work on server-side. <o:p> </o:p> |
Accepted answer
Pavel,
first, you should never set a work item attribute in a precondition.
The purpose of preconditions is to evaluate whether the current action can be performed or not, by reading attribute values.
If you want to set an attribute value, write a follow-up action instead.
Concerning your specific issue, I would rather retrieve a IEnumeration object than an Enumeration one.
I always use this code for retrieving enumerations, and it works fine:
IProgressMonitor monitor = new NullProgressMonitor();
IWorkItemCommon workItemCommon = pluginAbstractService.getService(IWorkItemCommon.class);
IEnumeration<?> enumeration workItemCommon.resolveEnumeration(attributeHandle, monitor);
Anyway, if you have a close look at my original post, you will find that I am using the "internal" Enumeration class to add an enumeration value to db-based enumeration at runtime (i.e., as the plugin is running).
If I understand, you need to set the value of a work item attribute to an already existing enumeration value.
Ralph Schoon selected this answer as the correct answer
Comments What is pluginAbstractService in line IWorkItemCommon workItemCommon = pluginAbstractService.getService(IWorkItemCommon.class);?
If it my plugin AbstractService, and I can describe as this.getService(IWorkItemCommon.class) - it fallin down plugin. Whats other way to become IWorkItemCommon workItemCommon?
import com.ibm.team.repository.service.AbstractService;
// where plugin=your plugin's class
AbstractService pluginAbstractService = (AbstractService) plugin;
Actually, this code snippet is in another class (named "PluginUtility") than my plugin's class; I pass the plugin object (from inside the plugin's class) this way:
PluginUtility utility;
utility = new PluginUtility(this);
Then, in PluginUtility:
public PluginUtility(Object currentPlugin) {
plugin = currentPlugin;
}
.....
AbstractService pluginAbstractService = (AbstractService) plugin;
AbstractService is only available if the extension point implementation class extends AbstractService as it should.
I would suggest to start here: https://rsjazz.wordpress.com/2015/09/30/learning-to-fly-getting-started-with-the-rtc-java-apis/
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