Changeset 131 for Xml/Validator/Backend/OmeValidator.py

Timestamp:

01/10/08 15:11:22 (10 months ago)

Author:

andrew

Message:

Added check for validity against other versions of schemas

Files:

• Xml/Validator/Backend/OmeValidator.py (modified) (4 diffs)

Xml/Validator/Backend/OmeValidator.py

@@ -143 +143 @@
         thePrefix = None
         
+        """
+        The file the schema for the namespace has been loaded from
+        """
+        theSchemaFile = None
         """
         Create the message lists for this instance of the report object
@@ -241 +245 @@
                 # loading the OME schema to validate against
                 schema = self.loadChoosenSchema()
+                if schema is None:
+                        return
+                
                 # create an IO string for the xml string provided
                 stringXml = StringIO(self.theDom.toxml())
@@ -262 +269 @@
                                 self.isXsdValid = False
                                 self.errorList.append(ParseMessage(None, err.line, None, "XSD", None, err.message))
+                        if self.isXsdValid:
+                                self.checkOldSchemas(document)
                 except etree.XMLSchemaValidateError:
                         self.isXsdValid = False
                         self.errorList.append(ParseMessage(None, None, None, "XML", None, "Processing the XML data has generated an unspecified error in the XML sub-system. This is usually a result of an incorrect top level block. Please check the OME block is well-formed and that the schemaLocation is specified correctly. This may also be caused by a missing namespace prefix or incorrect xmlns attribute."))
-                        
+        
+        def checkOldSchemas(self, inDocument):
+                for thePossibleSchema in [["ome-2007-07-V2.xsd","September 2007 V2"],["ome-2007-07-V1.xsd","June 2007 V1"],["ome-fc-tiff.xsd","2003 - Tiff Variant"], ["ome-fc.xsd","2003 - Standard version"]]:
+                        # skip current one
+                        if not thePossibleSchema[0] == self.theSchemaFile:
+                                # load each old schema
+                                try:
+                                        schema = etree.XMLSchema(etree.parse(schemaFilePath(thePossibleSchema[0])))
+                                except:
+                                        # chosen schema failed to laod
+                                        self.errorList.append(ParseMessage(None, None, None, "XSD", None, "Validator Internal error: XSD schema file could not be found"))
+                                # try validation
+                                try:
+                                        schema.validate(inDocument)
+                                        err = schema.error_log.last_error
+                                        if not err:
+                                                # if valid then add info message "also valid under..."
+                                                self.warningList.append(ParseMessage(None, None, None, "Info", None, "File also valid under schema: " + thePossibleSchema[1]))
+                                except etree.XMLSchemaValidateError:
+                                        err = False
         
         def loadChoosenSchema(self):
                 # choose the schema source
                 # assume the new schema
-                theSchemaFile = "ome-2007-07-V2.xsd"
+                self.theSchemaFile = "ome-2007-07-V2.xsd"
                 # if old schema
                 if self.theNamespace == "http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd":
@@ -276 +304 @@
                         if self.isOmeTiff:
                                 # use special tiff version of old schema
-                                theSchemaFile = "ome-fc-tiff.xsd"
+                                self.theSchemaFile = "ome-fc-tiff.xsd"
                         else:
                                 # use normal version of old schema
-                                theSchemaFile = "ome-fc.xsd"
+                                self.theSchemaFile = "ome-fc.xsd"
                 
                 # loading the OME schema to validate against
                 try:
-                        schema = etree.XMLSchema(etree.parse(schemaFilePath(theSchemaFile)))
+                        schema = etree.XMLSchema(etree.parse(schemaFilePath(self.theSchemaFile)))
                 except:
-                        #chosen scema failed to laod
+                        # chosen schema failed to laod
                         self.errorList.append(ParseMessage(None, None, None, "XSD", None, "Validator Internal error: XSD schema file could not be found"))
-                
+                        schema = None;
+                        
                 return schema