Esempio n. 1
0
def passing_XMLtree(node, oldlayers_Server, newlayers_Server, cur, conn, name_xmlfile):
  # Will store the number of Server and URL where store .DTD file
  global Nwms, URL_dtd

  # If the node not the text (is not between opening and closing tags)
  if node.nodeType != node.TEXT_NODE:
    if(node.nodeName == "Service"):
      # Handler is called subtree tag <Service> and defined number of Server
      Nwms = 0
      Nwms = parse_subtreeService(node, cur, conn, name_xmlfile)
      
      # Get all the layers of this server already exists in the database
      # SELECT Nlayer, Name From KnownLayers WHERE Nwms = Nwms;
      condition = {}
      condition["Nwms"] = Nwms
      oldlayers_Server = BD.ifselect_table(cur, "KnownLayers", "Nlayer", condition, "Name")
      
      # access to the following brother of the node that not to handle the
      # node some times
      node = node.nextSibling
    if(node.nodeName == "Layer"):
      # Handler is called subtree tag <Service> and defined number of Server
      parse_subtreeLayer(node, newlayers_Server, cur, conn, -1)
      
      # access to the following brother of the node
      node = node.nextSibling
    if(node.nodeName == "Capability"):
      # Update table WMSresources. Find record with primary key = Nwms
      # SELECT Nwms, Name FROM WMSresources WHERE Nwms = Nwms;
      condition = {}
      condition["Nwms"] = Nwms
      res = BD.ifselect_table(cur, "WMSresources", "Nwms", condition, "Name")
      if res:
        # If this Server already exists in the database
        # UPDATE WMSresources SET 
        #        Capabilites = 'node.toxml('utf-8').replace("\", "\'\'")'
        # WHERE Nwms = Nwms;
        BD.updatebd_xmlfield(cur, conn, "WMSresources", "Capabilites", node,\
                             "Nwms", Nwms)

    if(node.nodeType != node.TEXT_NODE):
      if node.nodeType == node.DOCUMENT_TYPE_NODE:
      # If the node is tag <!DOCTYPE>
        global URL_dtd
        # URL where store .DTD file
        URL_dtd = node.systemId
      # Recursively goes through all subnodes
      for child in node.childNodes:
        oldlayers_Server = passing_XMLtree(child, oldlayers_Server, newlayers_Server,\
                                           cur, conn, name_xmlfile)

  # Returns a list of server layers, that were already in the database
  return oldlayers_Server
Esempio n. 2
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def form_layerInfo(cur, layer_id, capabilities):
  # Requested by the parent layer "parent_id"
  values = {}
  values["Nlayer"] = layer_id
  res = BD.ifselect_table(cur, "KnownLayers", "Nlayer", values, "Nl_group")
  
  for Nlayer, parent_id in res:
    # Requested tag SRS from "Capabilities"
    # SELECT xpath_nodeset(LayerCapabilites, '/Layer/SRS') WHERE Nlayer = Nlayer;
    result = BD.interset_request(cur, "KnownLayers", "LayerCapabilites", "/Layer/SRS", "Nlayer", Nlayer)
    if result:
      capabilities = insert_tag(result[0][0], capabilities, "<SRS>", "</SRS>", 1)

    # Requested tag LatLonBoundingBox from "Capabilities"
    # SELECT xpath_nodeset(LayerCapabilites, '/Layer/LatLonBoundingBox') WHERE Nlayer = Nlayer;
    result = BD.interset_request(cur, "KnownLayers", "LayerCapabilites", "/Layer/LatLonBoundingBox", "Nlayer", Nlayer)
    if result:
      capabilities = insert_tag(result[0][0], capabilities, "<LatLonBoundingBox", "</LatLonBoundingBox>", 0)

    # Requested tag BoundingBox from "Capabilities"
    # SELECT xpath_nodeset(LayerCapabilites, '/Layer/BoundingBox') WHERE Nlayer = Nlayer;
    result = BD.interset_request(cur, "KnownLayers", "LayerCapabilites", "/Layer/BoundingBox", "Nlayer", Nlayer)
    if result:
      capabilities = insert_tag(result[0][0], capabilities, "<BoundingBox", "</BoundingBox>", 0)
    
    # Requested tag Style from "Capabilities"
    # SELECT xpath_nodeset(LayerCapabilites, '/Layer/Style') WHERE Nlayer = Nlayer;
    result = BD.interset_request(cur, "KnownLayers", "LayerCapabilites", "/Layer/Style", "Nlayer", Nlayer)
    if result:
      capabilities = insert_tag(result[0][0], capabilities, "<Style>", "</Style>", 1)
    if parent_id != -1:
      capabilities = form_layerInfo(cur, parent_id, capabilities)
  return capabilities
Esempio n. 3
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def form_subxml(cur, Nlayer, capabilities, server_URL, flnogroup):
  # Requested to number the server layers, the parent layer and Capabilities.
  values = {}
  values["Nlayer"] = Nlayer
  res = BD.ifselect_table(cur, "KnownLayers", "Nlayer", values, "Nwms", "Nl_group", "LayerCapabilites")

  for Nlayer, Nwms, parent_id, sub_capabilities in res:
    if flnogroup:
    # If the layer is not a group
      if parent_id != -1:
        sub_capabilities = form_layerInfo(cur, parent_id, sub_capabilities)
      capabilities = capabilities + form_layer(sub_capabilities, Nlayer, server_URL)
    else:
    # If the layer is a group
      capabilities = capabilities + form_layerGroup(cur, Nlayer)
  return capabilities