public RepositoryType getOrchestrationType() {
    return m_orchestration;
  }
Gets the repository type to determine if this upgrade is a complete upgrade
or a service/patch.  This value is not always the same as the repository version.  In
the case of a revert of a patch, the target repository may be of type STANDARD, but orchestration
must be "like a patch".

@return the orchestration type.
ambari-server/src/main/java/org/apache/ambari/server/stack/upgrade/orchestrate/UpgradeContext.java