addons/promote/common/src/main/java/org/commonjava/indy/promote/data/PromotionManager.java
private StoreKey getTargetKey( final String targetName )
    {
        return targetGroupKeyMap.computeIfAbsent( targetName,
                                                  k -> new StoreKey( MavenPackageTypeDescriptor.MAVEN_PKG_KEY,
                                                                     StoreType.group, targetName ) );
    }
private StoreKey getTargetKey( final String targetName )
    {
        return targetGroupKeyMap.computeIfAbsent( targetName,
                                                  k -> new StoreKey( MavenPackageTypeDescriptor.MAVEN_PKG_KEY,
                                                                     StoreType.group, targetName ) );
    }
Provides target group store key for a given group name. This is meant to provide the same instance of the key
for a name to be able to synchronize promotion requests based on this instance.

@param targetName the target group name
@return the group store key