/**
  * The id are what they are, not trimming 'upcasing' or other modifications will be done in this
  * method.
  *
  * @param expectedType The class of type T which is expected.
  * @param <V> the type to cast to if the casting fails, null will be returned.
  * @param ids to search the cache for
  * @return the {@link Identifiable} of the first matching id or <code>null</code> if it was not
  *     found.
  */
 public <V extends Identifiable> V getCachedIdentifiable(Class<V> expectedType, Identifiable ids) {
   if (ids == null) {
     return null;
   }
   return getCachedIdentifiable(expectedType, ids.getIdentifiers());
 }
 public CoordinateSystem getCRSByID(String id) throws CRSConfigurationException {
   if (resolver == null) {
     throw new CRSConfigurationException("No resolver initialized, this may not be.");
   }
   CoordinateSystem result = null;
   if (id != null && !"".equals(id.trim())) {
     LOG.logDebug("Trying to load crs with id: " + id + " from cache.");
     if (LOG.isDebug()) {
       LOG.logDebug(cachedIdentifiables.keySet().toString());
     }
     if (cachedIdentifiables.containsKey(id)) {
       Identifiable r = cachedIdentifiables.get(id);
       LOG.logDebug("Found Identifiable: " + r.getIdAndName() + " from given id: " + id);
       if (!(r instanceof CoordinateSystem)) {
         LOG.logError(
             "Found Identifiable: "
                 + r.getIdAndName()
                 + " but it is not a coordinate system, your db is inconsistend return null.");
         r = null;
       }
       result = (CoordinateSystem) r;
     }
     if (result == null) {
       LOG.logDebug("No crs with id: " + id + " found in cache.");
       try {
         result = parseCoordinateSystem(resolver.getURIAsType(id));
       } catch (IOException e) {
         LOG.logDebug(e.getLocalizedMessage(), e);
         throw new CRSConfigurationException(e);
       }
       if (result != null) {
         GeographicCRS t = null;
         if (result.getType() == CoordinateSystem.COMPOUND_CRS) {
           if (((CompoundCRS) result).getUnderlyingCRS().getType()
               == CoordinateSystem.PROJECTED_CRS) {
             t = ((ProjectedCRS) ((CompoundCRS) result).getUnderlyingCRS()).getGeographicCRS();
           } else if (((CompoundCRS) result).getUnderlyingCRS().getType()
               == CoordinateSystem.GEOGRAPHIC_CRS) {
             t = (GeographicCRS) ((CompoundCRS) result).getUnderlyingCRS();
           } else {
             LOG.logWarning(
                 "Wgs84 Transformation lookup is currently only supported for GeographicCRS-chains.");
           }
         } else if (result.getType() == CoordinateSystem.PROJECTED_CRS) {
           t = ((ProjectedCRS) result).getGeographicCRS();
         } else if (result.getType() == CoordinateSystem.GEOGRAPHIC_CRS) {
           t = (GeographicCRS) result;
         } else {
           LOG.logWarning(
               "Wgs84 Transformation lookup is currently only supported for GeographicCRS-chains.");
         }
         if (t != null) {
           Helmert wgs84 = t.getGeodeticDatum().getWGS84Conversion();
           if (wgs84 == null) {
             wgs84 = resolver.getWGS84Transformation(t);
           }
           if (wgs84 != null) {
             if (wgs84.getSourceCRS() == null) {
               wgs84.setSourceCRS(t);
               addIdToCache(wgs84, true);
             }
             GeodeticDatum datum = result.getGeodeticDatum();
             if (datum != null) {
               datum.setToWGS84(wgs84);
               // update the cache as well
               addIdToCache(datum, true);
             }
           }
         }
       }
     }
   }
   if (result == null) {
     LOG.logDebug(
         "The id: "
             + id
             + " could not be mapped to a valid deegree-crs, currently projectedCRS, geographicCRS, compoundCRS and geocentricCRS are supported.");
   } else {
     /** Adding the used underlying crs's to the cache. */
     addIdToCache(result, false);
     if (result.getType() == CoordinateSystem.COMPOUND_CRS) {
       addIdToCache(((CompoundCRS) result).getUnderlyingCRS(), false);
       if (((CompoundCRS) result).getUnderlyingCRS().getType() == CoordinateSystem.PROJECTED_CRS) {
         addIdToCache(
             ((ProjectedCRS) ((CompoundCRS) result).getUnderlyingCRS()).getGeographicCRS(), false);
       }
     } else if (result.getType() == CoordinateSystem.PROJECTED_CRS) {
       addIdToCache(((ProjectedCRS) result).getGeographicCRS(), false);
     }
   }
   return result;
 }