Fully implement parsing of hydrological VTEC events

db/nexrad.sql

@@ -49,14 +49,17 @@ create table nexrad_afos_message (
     timestamp_start  TIMESTAMP NOT NULL,
     timestamp_end    TIMESTAMP NOT NULL,
     serial           INTEGER NOT NULL,
-    product          TEXT NOT NULL,
-    vtec_type        TEXT NOT NULL,
-    actions          TEXT NOT NULL,
-    wfo              TEXT NOT NULL,
-    phenom           TEXT NOT NULL,
-    sig              TEXT NOT NULL,
-    etn              INTEGER NOT NULL,
     text_raw         TEXT NOT NULL,
+    product          TEXT NOT NULL,
+    wfo              TEXT NOT NULL,
+    vtec_type        TEXT,
+    actions          TEXT,
+    phenom           TEXT,
+    sig              TEXT,
+    etn              INTEGER,
+    hydro_severity   TEXT,
+    hydro_cause      TEXT,
+    hydro_record     TEXT,
     azimuth          FLOAT NOT NULL,
     speed            FLOAT NOT NULL,
     forecaster       TEXT NOT NULL

lib/nexrad/afos.py

@@ -5,7 +5,7 @@ import shapely
 
 from nexrad.db    import DatabaseTable
 from nexrad.coord import COORD_SYSTEM
-from nexrad.vtec  import VTECEvent
+from nexrad.vtec  import VTECEvent, VTECHydroEvent
 
 RE_ID = re.compile(r'^(\d+)$')
 
@@ -123,18 +123,24 @@ class AFOSMessage(DatabaseTable):
     timestamp_start:  datetime.datetime
     timestamp_end:    datetime.datetime
 
-    product:    str
+    text_raw: str
-    vtec_type:  str
+    product:  str
-    actions:    str
+    wfo:      str
-    wfo:        str
+
-    phenom:     str
+    vtec_type: str
-    sig:        str
+    actions:   str
-    etn:        int
+    phenom:    str
-    text_raw:   str
+    sig:       str
+    etn:       int
+
+    hydro_severity: str
+    hydro_cause:    str
+    hydro_record:   str
+
     azimuth:    int
     speed:      int
-    location:   shapely.Point
     forecaster: str
+    location:   shapely.Point
     poly:       shapely.Geometry
 
     def __init__(self):
@@ -207,6 +213,15 @@ class AFOSMessageParser():
             self.message.sig       = vtec.sig
             self.message.etn       = vtec.etn
 
+        vtec = VTECHydroEvent.parse(line)
+
+        if vtec is not None:
+            self.message.timestamp_start = vtec.timestamp_start
+            self.message.timestamp_end   = vtec.timestamp_end
+            self.message.hydro_severity  = vtec.severity
+            self.message.hydro_cause     = vtec.cause
+            self.message.hydro_record    = vtec.record
+
     def parse_serial(self, line: str):
         match = RE_ID.match(line)
 

lib/nexrad/vtec.py

@@ -60,12 +60,13 @@ class VTECEventType(enum.StrEnum):
     EXPERIMENTAL_VTEC = 'X'
 
 class VTECEvent():
-    typeof:          str
+    typeof:  str
-    actions:         str
+    actions: str
-    wfo:             str
+    wfo:     str
-    phenom:          str
+    phenom:  str
-    sig:             str
+    sig:     str
-    etn:             int
+    etn:     int
+
     timestamp_start: datetime.datetime
     timestamp_end:   datetime.datetime
 
@@ -94,9 +95,10 @@ class VTECHydroEvent():
         'severity', 'cause', 'record', 'timestamp_start', 'timestamp_end'
     )
 
-    severity:        str
+    severity: str
-    cause:           str
+    cause:    str
-    record:          str
+    record:   str
+
     timestamp_start: datetime.datetime
     timestamp_end:   datetime.datetime