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
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
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
