code: @Override
      public List<String> purgeDatastream(String pid,
                                          String dsID,
                                          String startDT,
                                          String endDT,
                                          String logMessage,
                                          boolean force) {
          LOG.debug("start: purgeDatastream, {}, {}", pid, dsID);
          assertInitialized();
          try {
              MessageContext ctx = context.getMessageContext();
              return toStringList(m_management.purgeDatastream(ReadOnlyContext
                      .getSoapContext(ctx), pid, dsID, DateUtility
                      .parseDateOrNull(startDT), DateUtility
                      .parseDateOrNull(endDT), logMessage));
          } catch (Throwable th) {
              LOG.error("Error purging datastream", th);
              throw CXFUtility.getFault(th);
          } finally {
              LOG.debug("end: purgeDatastream, {}, {}", pid, dsID);
          }
      }
docs: /*
  (non-Javadoc)
  @see
  org.fcrepo.server.management.FedoraAPIMMTOM#purgeDatastream(java.lang
  .String pid ,)String dsID ,)String startDT ,)String endDT ,)String
  logMessage ,)boolean force )*