deprecating the adl blob format files

pyglance/glance/io.py

@@ -49,10 +49,13 @@ except ImportError:
     LOG.info('no AERI dmv data file format module')
     dmvlib = None
 
+# DEPRECATED, will be removed in future!
 try:
     import adl_blob
     LOG.info('adl_blob module found for JPSS ADL data file access')
-    # TODO, what is the loadable file extension?
+    LOG.warning('DEPRECATED: you have an adl_blob module installed; '
+                'loading JPSS ADL data files is DEPRECATED and will be '
+                'removed in a future version of Glance')
 except ImportError:
     LOG.info('no adl_blob format handler available')
     adl_blob = None
@@ -1334,6 +1337,8 @@ class jpss_adl(object):
     _blob = None
 
     def __init__(self, filename, allowWrite=False):
+        LOG.warning('DEPRECATED: loading JPSS ADL data files is DEPRECATED and will be '
+                    'removed in a future version of Glance')
         assert(allowWrite==False)
         for xmlname in _search_xml(filename):
             if not os.path.exists(xmlname):