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kuntagml_to_qgis.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
KuntaGMLtoQGIS
A QGIS plugin
Support to load KuntaGML features directly from WFS API's to QGIS
-------------------
begin : 2017-12-03
git sha : $Format:%H$
copyright : (C) 2017 by Gispo Oy
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
from PyQt4.QtCore import QSettings, QTranslator, qVersion, QCoreApplication
from PyQt4.QtGui import QAction, QIcon
# Initialize Qt resources from file resources.py
import resources
# Import the code for the dialog
from kuntagml_to_qgis_dialog import KuntaGMLtoQGISDialog
import os.path
from qgis.core import *
from qgis.gui import *
import requests
import os
from osgeo import ogr
import codecs
class KuntaGMLtoQGIS:
"""QGIS Plugin Implementation."""
def __init__(self, iface):
"""Constructor.
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
"""
# Save reference to the QGIS interface
self.iface = iface
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
# initialize locale
locale = QSettings().value('locale/userLocale')[0:2]
locale_path = os.path.join(
self.plugin_dir,
'i18n',
'KuntaGMLtoQGIS_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
if qVersion() > '4.3.3':
QCoreApplication.installTranslator(self.translator)
# Declare instance attributes
self.actions = []
self.menu = self.tr(u'&KuntaGML to QGIS plugin')
# TODO: We are going to let the user set this up in a future iteration
self.toolbar = self.iface.addToolBar(u'KuntaGMLtoQGIS')
self.toolbar.setObjectName(u'KuntaGMLtoQGIS')
# noinspection PyMethodMayBeStatic
def tr(self, message):
"""Get the translation for a string using Qt translation API.
We implement this ourselves since we do not inherit QObject.
:param message: String for translation.
:type message: str, QString
:returns: Translated version of message.
:rtype: QString
"""
# noinspection PyTypeChecker,PyArgumentList,PyCallByClass
return QCoreApplication.translate('KuntaGMLtoQGIS', message)
def add_action(
self,
icon_path,
text,
callback,
enabled_flag=True,
add_to_menu=True,
add_to_toolbar=True,
status_tip=None,
whats_this=None,
parent=None):
"""Add a toolbar icon to the toolbar.
:param icon_path: Path to the icon for this action. Can be a resource
path (e.g. ':/plugins/foo/bar.png') or a normal file system path.
:type icon_path: str
:param text: Text that should be shown in menu items for this action.
:type text: str
:param callback: Function to be called when the action is triggered.
:type callback: function
:param enabled_flag: A flag indicating if the action should be enabled
by default. Defaults to True.
:type enabled_flag: bool
:param add_to_menu: Flag indicating whether the action should also
be added to the menu. Defaults to True.
:type add_to_menu: bool
:param add_to_toolbar: Flag indicating whether the action should also
be added to the toolbar. Defaults to True.
:type add_to_toolbar: bool
:param status_tip: Optional text to show in a popup when mouse pointer
hovers over the action.
:type status_tip: str
:param parent: Parent widget for the new action. Defaults None.
:type parent: QWidget
:param whats_this: Optional text to show in the status bar when the
mouse pointer hovers over the action.
:returns: The action that was created. Note that the action is also
added to self.actions list.
:rtype: QAction
"""
# Create the dialog (after translation) and keep reference
self.dlg = KuntaGMLtoQGISDialog()
icon = QIcon(icon_path)
action = QAction(icon, text, parent)
action.triggered.connect(callback)
action.setEnabled(enabled_flag)
if status_tip is not None:
action.setStatusTip(status_tip)
if whats_this is not None:
action.setWhatsThis(whats_this)
if add_to_toolbar:
self.toolbar.addAction(action)
if add_to_menu:
self.iface.addPluginToMenu(
self.menu,
action)
self.actions.append(action)
return action
def initGui(self):
"""Create the menu entries and toolbar icons inside the QGIS GUI."""
icon_path = ':/plugins/KuntaGMLtoQGIS/icon.png'
self.add_action(
icon_path,
text=self.tr(u'Get KuntaGML data'),
callback=self.run,
parent=self.iface.mainWindow())
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
for action in self.actions:
self.iface.removePluginMenu(
self.tr(u'&KuntaGML to QGIS plugin'),
action)
self.iface.removeToolBarIcon(action)
# remove the toolbar
del self.toolbar
def run(self):
"""Run method that performs all the real work"""
# show the dialog
self.dlg.show()
# Run the dialog event loop
result = self.dlg.exec_()
# See if OK was pressed
if result:
base_url = str(self.dlg.baseURLComboBox.currentText())
feature = str(self.dlg.featureTypeComboBox.currentText())
srs = str(self.dlg.SRSComboBox.currentText())
wfs_version = "1.1.0"
QgsMessageLog.logMessage(str(base_url), 'KuntaGMLPlugin', QgsMessageLog.INFO)
QgsMessageLog.logMessage(str(feature), 'KuntaGMLPlugin', QgsMessageLog.INFO)
QgsMessageLog.logMessage(str(srs), 'KuntaGMLPlugin', QgsMessageLog.INFO)
QgsMessageLog.logMessage(str(wfs_version), 'KuntaGMLPlugin', QgsMessageLog.INFO)
get_params = {
'REQUEST': 'GetFeature',
'SERVICE': 'WFS',
'VERSION': wfs_version,
'TYPENAME': feature,
'SRS': srs}
#print(base_url)
response = requests.get(base_url, params=get_params)
response.raise_for_status()
QgsMessageLog.logMessage("Requested " + response.url, 'KuntaGMLPlugin', QgsMessageLog.INFO)
QgsMessageLog.logMessage(response.encoding, 'KuntaGMLPlugin', QgsMessageLog.INFO)
#response.encoding = 'ISO-8859-1'
response.encoding = 'UTF-8'
#print(response.text)
#
# Create file name that is based on the script arguments, that follows somewhat how
# the GDAL gmlas driver caches the schema files
#
url_parts = base_url.split('/')
file_name_start = url_parts[2] + '_' + wfs_version + '_' + srs + '_' + feature
QgsMessageLog.logMessage("Names of the files stored in the dir start with " + file_name_start, 'KuntaGMLPlugin', QgsMessageLog.INFO)
#file_name = file_name_start + '_orig.gml'
#with codecs.open(file_name, 'w', encoding='UTF-8') as file:
# file.write(response.text)
#
# NOTE: Since we cannot trust the GML document and it's XML is valid,
# it is not totally safe to assume that parsing with a XML parser is successful.
# Besides search and replace of the text is easier, so below this approach...
# NOTE: The http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/yhteiset_2.1.6.xsd is equal to the
# http://www.paikkatietopalvelu.fi/gml/yhteiset/2.1.6/yhteiset.xsd except the - has been
# corrected to the \- in the lines 3283 and 3778, and
# the http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/asemakaava_2.1.1.xsd points to the gispogdalkuntagml/yhteiset_2.1.6.xsd.
# The replacement is probably not needed in the future when
# KuntaGML yhteiset.xsd is corrected to encode special characters correctly and the change
# https://trac.osgeo.org/gdal/changeset/40429 mentioned in the
# http://osgeo-org.1560.x6.nabble.com/gdal-dev-Namespaces-in-GMLAS-td5338379.html
# is taken into use.
text = response.text
if feature.startswith('akaava:'):
text = text.replace('xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.tekla.com/schemas/kuntagml ' + base_url + '?SERVICE=WFS&VERSION=' + wfs_version + '&REQUEST=DescribeFeatureType&typeName=' + feature + ' "', 'xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/' + wfs_version + '/wfs.xsd http://www.paikkatietopalvelu.fi/gml/asemakaava http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/asemakaava_2.1.1.xsd http://www.paikkatietopalvelu.fi/gml/yhteiset http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/yhteiset_2.1.6.xsd http://www.ymparisto.fi http://www.paikkatietopalvelu.fi/gml/asemakaava/1.2.6/KatseDetailPlan.xsd"')
elif feature.startswith('kanta:'):
text = text.replace('xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.tekla.com/schemas/kuntagml ' + base_url + '?SERVICE=WFS&VERSION=' + wfs_version + '&REQUEST=DescribeFeatureType&typeName=' + feature + ' "', 'xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/' + wfs_version + '/wfs.xsd http://www.paikkatietopalvelu.fi/gml/kantakartta http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/kantakartta_2.1.1.xsd http://www.paikkatietopalvelu.fi/gml/yhteiset http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/yhteiset_2.1.6.xsd http://www.ymparisto.fi http://www.paikkatietopalvelu.fi/gml/asemakaava/1.2.6/KatseDetailPlan.xsd"')
elif feature.startswith('mkos:'):
text = text.replace('xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.tekla.com/schemas/kuntagml ' + base_url + '?SERVICE=WFS&VERSION=' + wfs_version + '&REQUEST=DescribeFeatureType&typeName=' + feature + ' "', 'xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/' + wfs_version + '/wfs.xsd http://www.paikkatietopalvelu.fi/gml/opastavattiedot/osoitteet http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/osoitteet_2.1.1.xsd http://www.paikkatietopalvelu.fi/gml/yhteiset http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/yhteiset_2.1.6.xsd http://www.ymparisto.fi http://www.paikkatietopalvelu.fi/gml/asemakaava/1.2.6/KatseDetailPlan.xsd"')
elif feature.startswith('mkok:'):
text = text.replace('xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.tekla.com/schemas/kuntagml ' + base_url + '?SERVICE=WFS&VERSION=' + wfs_version + '&REQUEST=DescribeFeatureType&typeName=' + feature + ' "', 'xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/' + wfs_version + '/wfs.xsd http://www.paikkatietopalvelu.fi/gml/opastavattiedot/opaskartta http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/opaskartta_2.1.1.xsd http://www.paikkatietopalvelu.fi/gml/yhteiset http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/yhteiset_2.1.6.xsd http://www.ymparisto.fi http://www.paikkatietopalvelu.fi/gml/asemakaava/1.2.6/KatseDetailPlan.xsd"')
#elif feature.startswith('rakval:'):
# text = text.replace('xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd http://www.tekla.com/schemas/kuntagml ' + base_url + '?SERVICE=WFS&VERSION=' + wfs_version + '&REQUEST=DescribeFeatureType&typeName=' + feature + ' "', 'xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/' + wfs_version + '/wfs.xsd http://www.paikkatietopalvelu.fi/gml/rakennusvalvonta http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/rakennusvalvonta_2.2.0.xsd http://www.paikkatietopalvelu.fi/gml/yhteiset http://s3.eu-central-1.amazonaws.com/gispogdalkuntagml/yhteiset_2.1.6.xsd http://www.ymparisto.fi http://www.paikkatietopalvelu.fi/gml/asemakaava/1.2.6/KatseDetailPlan.xsd"')
else:
print("Turku did not have the specified feature publicly available when this script was created (Dec 2017). Feature type not supported by the script.")
self.path = os.path.dirname(__file__)
file_name_mod = file_name_start + '_mod.gml'
with codecs.open(os.path.join(self.path, "data", file_name_mod), 'w', 'UTF-8') as file:
file.write(text)
final_file_path = os.path.join(self.path, "data", file_name_start)
# NOTE: parameter HANDLE_MULTIPLE_IMPORTS=YES seems to do opposite to what it should in version 2.2.2+dfsg-1~xenial1
# Also, GDAL 2.1.3 does not seem to support this ogr2ogr call at all
ogr2ogr_convert_params = "-dim 2 -nlt convert_to_linear" \
+ " -oo REMOVE_UNUSED_LAYERS=YES" \
+ " -oo REMOVE_UNUSED_FIELDS=YES" \
+ " -oo EXPOSE_METADATA_LAYERS=YES" \
#+ " --debug on" #\
#+ " -oo HANDLE_MULTIPLE_IMPORTS=YES"
#command = "ogr2ogr -f GPKG " + final_file_path + ".gpkg" + " gmlas:" + file_name_mod + " " + ogr2ogr_convert_params
#print("calling: " + command)
#os.system(command)
command = "ogr2ogr -f sqlite -dsco spatialite=yes " + final_file_path + ".sqlite" + " gmlas:" + os.path.join(self.path, "data", file_name_mod) + " " + ogr2ogr_convert_params
QgsMessageLog.logMessage("calling: " + command, 'KuntaGMLPlugin', QgsMessageLog.INFO)
os.system(command)
uri = QgsDataSourceURI()
uri.setDatabase(final_file_path + ".sqlite")
if feature == 'akaava:Kaava':
uri.setDataSource('', 'kaavamaarays','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'kaavamaarays', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
uri.setDataSource('', 'kaava_muukaavatunnus','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'kaava_muukaavatunnus', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
uri.setDataSource('', 'kaava_yhteisetkaavamaaraykse__kaavamaarayskohde_kaavamaarays','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'kaava_yhteisetkaavamaaraykse__kaavamaarayskohde_kaavamaarays', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
elif feature == 'akaava:Suojelualue':
uri.setDataSource('', 'aluesijainti','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'aluesijainti', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
uri.setDataSource('', 'suojelualue','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'suojelualue', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
elif feature == 'kanta:Rakennus':
uri.setDataSource('', 'rakennus','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'rakennus', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
uri.setDataSource('', 'rakennus_osoite_osoitenimi_teksti','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'rakennus_osoite_osoitenimi_teksti', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
uri.setDataSource('', 'sijainnit','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'sijainnit', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
elif feature == 'mkok:HallinnollinenAlue':
uri.setDataSource('', 'hallinnollinenalue_nimi_teksti','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'hallinnollinenalue_nimi_teksti', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
uri.setDataSource('', 'teksti','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'teksti', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
uri.setDataSource('', 'teksti_teksti','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'teksti_teksti', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
elif feature == 'mkos:OSoite':
uri.setDataSource('', 'osoite_osoitenimi_teksti','','','id')
vlayer = QgsVectorLayer(uri.uri(), 'osoite_osoitenimi_teksti', 'spatialite')
QgsMapLayerRegistry.instance().addMapLayer(vlayer)
driver = ogr.GetDriverByName('SQLite')
#driver.SetMetadataItem("LIST_ALL_TABLES", "YES") # NOTE: Crashes
data_source = driver.Open(final_file_path + ".sqlite", 0)
layer_count = data_source.GetLayerCount()
for i in range(layer_count):
layer = data_source.GetLayerByIndex(i)
layer_name = layer.GetName()
QgsMessageLog.logMessage("A layer: " + layer_name, 'KuntaGMLPlugin', QgsMessageLog.INFO)
new_layer_name = file_name_start + " " + layer_name
new_layer = QgsVectorLayer(final_file_path + ".sqlite" + "|layerid=" + str(i), new_layer_name, "ogr")
QgsMapLayerRegistry.instance().addMapLayers([new_layer])