Mercurial > dive4elements > river

annotate flys-backend/contrib/shpimporter/utils.py @ 5035:1f33012cc02a dami

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Add skip-dgm option to example run script
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 20 Feb 2013 10:38:17 +0100
parents 769593a84606
children d6860fca89e4
rev   line source
2798
5a654f2e35bc Added a python tool to import shapefiles into database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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1 import os
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2 import sys
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3 import logging
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4
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174fbaa3d344 Add handling of River Names and remove target_src parameter
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5 try:
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6 from osgeo import ogr
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7 except ImportErrror:
174fbaa3d344 Add handling of River Names and remove target_src parameter
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8 import ogr
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9
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10 logger = logging.getLogger("utils")
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11
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12 SHP='.shp'
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13 SQL_SELECT_RIVER_ID="SELECT id FROM rivers WHERE name = %s"
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14
5a654f2e35bc Added a python tool to import shapefiles into database.
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15 def findShapefiles(path):
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16 shapes = []
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17
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18 for root, dirs, files in os.walk(path):
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19 if len(files) == 0:
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20 continue
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21
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22 logger.debug("Processing directory '%s' with %i files " % (root, len(files)))
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23
5a654f2e35bc Added a python tool to import shapefiles into database.
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24 for f in files:
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25 idx = f.find(SHP)
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26 if (idx+len(SHP)) == len(f):
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27 shapes.append((f.replace(SHP, ''), root + "/" + f))
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28
5a654f2e35bc Added a python tool to import shapefiles into database.
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29 return shapes
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30
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31 def getRiverId(dbconn, name):
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32 """
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33 Returns the id of the river "name"
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34 Dbconn must be a python database connection api compliant object
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35 """
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36 cur = dbconn.cursor()
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37 cur.execute(SQL_SELECT_RIVER_ID, (name,))
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38 row = cur.fetchone()
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39 if row:
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40 return row[0]
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41 else:
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42 return 0
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43
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44 def getUTF8(string):
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45 """
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46 Tries to convert the string to a UTF-8 encoding by first checking if it
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47 is UTF-8 and then trying cp1252
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48 """
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49 try:
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50 return unicode.encode(unicode(string, "UTF-8"), "UTF-8")
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51 except UnicodeDecodeError:
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52 # Probably European Windows names so lets try again
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53 return unicode.encode(unicode(string, "cp1252"), "UTF-8")
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54
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55 def getUTF8Path(path):
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56 """
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57 Tries to convert path to utf-8 by first checking the filesystemencoding
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58 and trying the default windows encoding afterwards.
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59 Returns a valid UTF-8 encoded unicode object or throws a UnicodeDecodeError
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60 """
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61 try:
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62 return unicode.encode(unicode(path, sys.getfilesystemencoding()), "UTF-8")
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63 except UnicodeDecodeError:
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64 # Probably European Windows names so lets try again
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65 return unicode.encode(unicode(path, "cp1252"), "UTF-8")
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66
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67 WKB_MAP = {
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68 ogr.wkb25Bit : 'wkb25Bit',
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69 ogr.wkbGeometryCollection : 'wkbGeometryCollection',
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70 ogr.wkbGeometryCollection25D :'wkbGeometryCollection25D',
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71 ogr.wkbLineString : 'wkbLineString',
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72 ogr.wkbLineString25D : 'wkbLineString25D',
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73 ogr.wkbLinearRing : 'wkbLinearRing',
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74 ogr.wkbMultiLineString : 'wkbMultiLineString',
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75 ogr.wkbMultiLineString25D : 'wkbMultiLineString25D',
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76 ogr.wkbMultiPoint : 'wkbMultiPoint',
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77 ogr.wkbMultiPoint25D : 'wkbMultiPoint25D',
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78 ogr.wkbMultiPolygon : 'wkbMultiPolygon',
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79 ogr.wkbMultiPolygon25D : 'wkbMultiPolygon25D',
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80 ogr.wkbNDR : 'wkbNDR',
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81 ogr.wkbNone : 'wkbNone',
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82 ogr.wkbPoint : 'wkbPoint',
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83 ogr.wkbPoint25D : 'wkbPoint25D',
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84 ogr.wkbPolygon : 'wkbPolygon',
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85 ogr.wkbPolygon25D : 'wkbPolygon25D',
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86 ogr.wkbUnknown : 'wkbUnknown',
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87 ogr.wkbXDR : 'wkbXDR'
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88 }
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89
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90 def getWkbString(type):
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91 return WKB_MAP.get(type) or "Unknown"
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92
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