text: #!/usr/bin/env python
  ###############################################################################
  # $Id$
  #
  # Project:  GDAL/OGR Test Suite
  # Purpose:  NAS Reading Driver testing.
  # Author:   Even Rouault <even dot rouault at mines dash paris dot org>
  #
  ###############################################################################
  # Copyright (c) 2010-2012, Even Rouault <even dot rouault at mines-paris dot org>
  #
  # Permission is hereby granted, free of charge, to any person obtaining a
  # copy of this software and associated documentation files (the "Software"),
  # to deal in the Software without restriction, including without limitation
  # the rights to use, copy, modify, merge, publish, distribute, sublicense,
  # and/or sell copies of the Software, and to permit persons to whom the
  # Software is furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included
  # in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  # DEALINGS IN THE SOFTWARE.
  ###############################################################################
  
  import os
  import sys
  
  sys.path.append('../pymod')
  
  import gdaltest
  import ogrtest
  from osgeo import ogr
  
  # Other test data :
  # http://www.lv-bw.de/alkis.info/nas-bsp.html
  # http://www.lv-bw.de/lvshop2/Produktinfo/AAA/AAA.html
  # http://www.gll.niedersachsen.de/live/live.php?navigation_id=10640&article_id=51644&_psmand=34
  
  ###############################################################################
  # Test reading a NAS file
  #
  
  
  def ogr_nas_1():
  
      drv = ogr.GetDriverByName('NAS')
      if drv is None:
          return 'skip'
  
      if not gdaltest.download_file('http://www.geodatenzentrum.de/gdz1/abgabe/testdaten/vektor/nas_testdaten_peine.zip', 'nas_testdaten_peine.zip'):
          return 'skip'
  
      try:
          os.stat('tmp/cache/BKG_NAS_Peine.xml')
      except OSError:
          try:
              gdaltest.unzip('tmp/cache', 'tmp/cache/nas_testdaten_peine.zip')
              try:
                  os.stat('tmp/cache/BKG_NAS_Peine.xml')
              except OSError:
                  return 'skip'
          except OSError:
              return 'skip'
  
      try:
          os.remove('tmp/cache/BKG_NAS_Peine.gfs')
      except OSError:
          pass
  
      ds = ogr.Open('tmp/cache/BKG_NAS_Peine.xml')
      if ds is None:
          gdaltest.post_reason('could not open dataset')
          return 'fail'
  
      if ds.GetLayerCount() != 41:
          gdaltest.post_reason('did not get expected layer count')
          return 'fail'
  
      lyr = ds.GetLayerByName('AX_Wohnplatz')
      feat = lyr.GetNextFeature()
      geom = feat.GetGeometryRef()
  
      if feat.GetField('name') != 'Ziegelei' or geom.ExportToWkt() != 'POINT (3575300 5805100)':
          feat.DumpReadable()
          return 'fail'
  
      relation_lyr = ds.GetLayerByName('ALKIS_beziehungen')
      feat = relation_lyr.GetNextFeature()
      if feat.GetField('beziehung_von') != 'DENIBKG1000001UG' or \
         feat.GetField('beziehungsart') != 'istTeilVon' or \
         feat.GetField('beziehung_zu') != 'DENIBKG1000000T6':
          feat.DumpReadable()
          return 'fail'
  
      ds = None
  
      return 'success'
  
  ###############################################################################
  # Test reading a sample NAS file from PostNAS
  #
  
  
  def ogr_nas_2():
  
      drv = ogr.GetDriverByName('NAS')
      if drv is None:
          return 'skip'
  
      if not gdaltest.download_file('http://trac.wheregroup.com/PostNAS/browser/trunk/demodaten/lverm_geo_rlp/gid-6.0/gm2566-testdaten-gid60-2008-11-11.xml.zip?format=raw', 'gm2566-testdaten-gid60-2008-11-11.xml.zip'):
          return 'skip'
  
      try:
          os.stat('tmp/cache/gm2566-testdaten-gid60-2008-11-11.xml')
      except OSError:
          try:
              gdaltest.unzip('tmp/cache', 'tmp/cache/gm2566-testdaten-gid60-2008-11-11.xml.zip')
              try:
                  os.stat('tmp/cache/gm2566-testdaten-gid60-2008-11-11.xml')
              except OSError:
                  return 'skip'
          except OSError:
              return 'skip'
  
      try:
          os.remove('tmp/cache/gm2566-testdaten-gid60-2008-11-11.gfs')
      except OSError:
          pass
  
      ds = ogr.Open('tmp/cache/gm2566-testdaten-gid60-2008-11-11.xml')
      if ds is None:
          gdaltest.post_reason('could not open dataset')
          return 'fail'
  
      if ds.GetLayerCount() != 85:
          gdaltest.post_reason('did not get expected layer count')
          print(ds.GetLayerCount())
          return 'fail'
  
      lyr = ds.GetLayerByName('AX_Flurstueck')
  
      # Loop until a feature that has a complex geometry including <gml:Arc>
      feat = lyr.GetNextFeature()
      while feat is not None and feat.GetField('identifier') != 'urn:adv:oid:DERP1234000002Iz':
          feat = lyr.GetNextFeature()
      if feat is None:
          return 'fail'
  
      # expected_geom = 'POLYGON ((350821.045 5532031.37,350924.309 5532029.513,350938.493 5532026.622,350951.435 5532021.471,350978.7 5532007.18,351026.406 5531971.088,351032.251 5531951.162,351080.623 5531942.67,351154.886 5531963.718,351207.689 5532019.797,351211.063 5532044.067,351203.83 5532074.034,351165.959 5532114.315,351152.85 5532135.774,351141.396 5532140.355,351110.659 5532137.542,351080.17 5532132.742,351002.887 5532120.75,350925.682 5532108.264,350848.556 5532095.285,350771.515 5532081.814,350769.548 5532071.196,350812.194 5532034.716,350821.045 5532031.37))'
      expected_geom = 'CURVEPOLYGON (COMPOUNDCURVE ((350821.045 5532031.37,350924.309 5532029.513,350938.493 5532026.622,350951.435 5532021.471,350978.7 5532007.18,351026.406 5531971.088,351032.251 5531951.16199999955),(351032.251 5531951.16199999955,351080.623 5531942.67,351154.886 5531963.718),(351154.886 5531963.718,351207.689 5532019.797),(351207.689 5532019.797,351211.063 5532044.06699999981,351203.83 5532074.034,351165.959 5532114.315,351152.85 5532135.774),(351152.85 5532135.774,351141.396 5532140.355),CIRCULARSTRING (351141.396 5532140.355,351110.659 5532137.542,351080.17 5532132.74199999962),CIRCULARSTRING (351080.17 5532132.74199999962,351002.887 5532120.75,350925.682 5532108.264),CIRCULARSTRING (350925.682 5532108.264,350848.556 5532095.285,350771.515 5532081.814),(350771.515 5532081.814,350769.548 5532071.196,350812.194 5532034.716,350821.045 5532031.37)))'
      if ogrtest.check_feature_geometry(feat, expected_geom) != 0:
          geom = feat.GetGeometryRef()
          print(geom)
          return 'fail'
  
      ds = None
  
      return 'success'
  
  ###############################################################################
  # Test that we can open and read empty files successfully.
  #
  
  
  def ogr_nas_3():
  
      drv = ogr.GetDriverByName('NAS')
      if drv is None:
          return 'skip'
  
      ds = ogr.Open('data/empty_nas.xml')
      if ds is None:
          gdaltest.post_reason('could not open dataset')
          return 'fail'
  
      if ds.GetLayerCount() != 1:
          gdaltest.post_reason('did not get expected layer count')
          print(ds.GetLayerCount())
          return 'fail'
  
      ds = None
  
      return 'success'
  
  ###############################################################################
  # Test that we can read files with wfs:Delete transactions in them properly.
  #
  
  
  def ogr_nas_4():
  
      drv = ogr.GetDriverByName('NAS')
      if drv is None:
          return 'skip'
  
      try:
          os.remove('data/delete_nas.gfs')
      except OSError:
          pass
  
      ds = ogr.Open('data/delete_nas.xml')
      if ds is None:
          gdaltest.post_reason('could not open dataset')
          return 'fail'
  
      if ds.GetLayerCount() != 2:
          gdaltest.post_reason('did not get expected layer count')
          print(ds.GetLayerCount())
          return 'fail'
  
      del_lyr = ds.GetLayerByName('Delete')
  
      if del_lyr.GetFeatureCount() != 3:
          gdaltest.post_reason('did not get expected number of features')
          return 'fail'
  
      del_lyr.ResetReading()
      feat = del_lyr.GetNextFeature()
  
      if feat.GetField('context') != 'Delete':
          gdaltest.post_reason('did not get expected context')
          return 'fail'
  
      if feat.GetField('typeName') != 'AX_Namensnummer':
          gdaltest.post_reason('did not get expected typeName')
          return 'fail'
  
      if feat.GetField('FeatureId') != 'DENW44AL00000HJU20100730T092847Z':
          gdaltest.post_reason('did not get expected FeatureId')
          return 'fail'
  
      del_lyr = None
      ds = None
  
      try:
          os.remove('data/delete_nas.gfs')
      except OSError:
          pass
  
      return 'success'
  
  ###############################################################################
  # Test that we can read files with wfsext:Replace transactions properly
  #
  
  
  def ogr_nas_5():
  
      drv = ogr.GetDriverByName('NAS')
      if drv is None:
          return 'skip'
  
      try:
          os.remove('data/replace_nas.gfs')
      except OSError:
          pass
  
      ds = ogr.Open('data/replace_nas.xml')
      if ds is None:
          gdaltest.post_reason('could not open dataset')
          return 'fail'
  
      if ds.GetLayerCount() != 3:
          gdaltest.post_reason('did not get expected layer count')
          print(ds.GetLayerCount())
          return 'fail'
  
      # Check the delete operation created for the replace
  
      del_lyr = ds.GetLayerByName('Delete')
  
      if del_lyr.GetFeatureCount() != 1:
          gdaltest.post_reason('did not get expected number of features')
          return 'fail'
  
      del_lyr.ResetReading()
      feat = del_lyr.GetNextFeature()
  
      if feat.GetField('context') != 'Replace':
          gdaltest.post_reason('did not get expected context')
          return 'fail'
  
      if feat.GetField('replacedBy') != 'DENW44AL00003IkM20110429T070635Z':
          gdaltest.post_reason('did not get expected replacedBy')
          return 'fail'
  
      if feat.GetField('safeToIgnore') != 'false':
          gdaltest.post_reason('did not get expected safeToIgnore')
          return 'fail'
  
      if feat.GetField('typeName') != 'AX_Flurstueck':
          gdaltest.post_reason('did not get expected typeName')
          return 'fail'
  
      if feat.GetField('FeatureId') != 'DENW44AL00003IkM20100809T071726Z':
          gdaltest.post_reason('did not get expected FeatureId')
          return 'fail'
  
      del_lyr = None
  
      # Check also the feature created by the Replace
  
      lyr = ds.GetLayerByName('AX_Flurstueck')
  
      if lyr.GetFeatureCount() != 1:
          gdaltest.post_reason('did not get expected number of features')
          return 'fail'
  
      lyr.ResetReading()
      feat = lyr.GetNextFeature()
  
      if feat.GetField('gml_id') != 'DENW44AL00003IkM20110429T070635Z':
          gdaltest.post_reason('did not get expected gml_id')
          return 'fail'
  
      if feat.GetField('stelle') != 5212:
          gdaltest.post_reason('did not get expected stelle')
          return 'fail'
  
      lyr = None
  
      ds = None
  
      try:
          os.remove('data/replace_nas.gfs')
      except OSError:
          pass
  
      return 'success'
  
  
  gdaltest_list = [
      ogr_nas_1,
      ogr_nas_2,
      ogr_nas_3,
      ogr_nas_4,
      ogr_nas_5]
  
  # NAS tests disabled for now
  gdaltest_list = []
  
  if __name__ == '__main__':
  
      gdaltest.setup_run('ogr_nas')
  
      gdaltest.run_tests(gdaltest_list)
  
      gdaltest.summarize()
  