/// <summary>
/// Parse a mapping from a file.
/// </summary>
/// <param name="filename">File to parse</param>
/// <returns>Mapping</returns>
/// <author>Carsten Cordes, Thomas Meents</author>
public static Mapping ParseMapping(String filename)
{
var mapping = new Mapping();
//Try load document
var document = new XmlDocument();
try
{
document.Load(filename);
}
catch (XmlException e)
{
return(null);
throw new Exception("Error while parsing: \n" + e.Message);
}
catch (ArgumentException e)
{
return(null);
throw new Exception("Error while opening file: \n" + e.Message);
}
//Find root element of Mapping.
XmlNode mappingNode = document.GetElementsByTagName("mapping").Item(0);
//Get Mapping name and representation Namespace.
if (mappingNode != null)
{
if (mappingNode.Attributes != null)
{
for (int i = 0; i < mappingNode.Attributes.Count; i++)
{
XmlNode attribute = mappingNode.Attributes.Item(i);
if (attribute.Name.ToLower().Equals("diagram"))
{
mapping.MappingName = attribute.Value;
}
if (attribute.Name.ToLower().Equals("namespace"))
{
mapping.Namespace = attribute.Value;
}
}
}
XmlNode patternsNode = null;
XmlNode typesNode = null;
//Mapping has no childs? return null.
if (!mappingNode.HasChildNodes)
{
return(null);
}
//Get types and patterns node as entrypoint for types parsing and patterns parsing.
for (int i = 0; i < mappingNode.ChildNodes.Count; i++)
{
XmlNode currentNode = mappingNode.ChildNodes[i];
if (currentNode.Name.ToLower().Equals("patterns"))
{
patternsNode = currentNode;
}
if (currentNode.Name.ToLower().Equals("types"))
{
typesNode = currentNode;
}
}
//No Types? -> NULL
if (typesNode == null || !typesNode.HasChildNodes)
{
return(null);
}
//Try Parsing all rules.
for (int i = 0; i < typesNode.ChildNodes.Count; i++)
{
MappingRule rule = CreateMapping(typesNode.ChildNodes.Item(i));
if (!mapping.AddRule(rule))
{
throw new Exception("Error while Mapping rule.");
}
}
//Parse Patterns with mapping.
ParsePatterns(mapping, patternsNode);
}
return(mapping);
}
/// <summary>
/// Parse Patterns from mapping.
/// </summary>
/// <param name="mapping">Current (incomplete) mapping</param>
/// <param name="patternsNode">Xmlnode Entrypoint for Pattern Parsing</param>
/// <author>Carsten Cordes, Thomas Meents</author>
private static void ParsePatterns(Mapping mapping, XmlNode patternsNode)
{
//If there are patterns
if (patternsNode != null && patternsNode.HasChildNodes)
{
//Parse them.
for (int i = 0; i < patternsNode.ChildNodes.Count; i++)
{
XmlNode patternTypeNode = patternsNode.ChildNodes[i];
Pattern.PatternTypes patternType;
//Which kind of pattern?
switch (patternTypeNode.Name.ToLower())
{
case "sequence":
patternType = Pattern.PatternTypes.Sequence;
break;
case "orsplit":
patternType = Pattern.PatternTypes.Orsplit;
break;
case "orjoin":
patternType = Pattern.PatternTypes.Orjoin;
break;
case "xorsplit":
patternType = Pattern.PatternTypes.Xorsplit;
break;
case "xorjoin":
patternType = Pattern.PatternTypes.Xorjoin;
break;
case "andsplit":
patternType = Pattern.PatternTypes.Andsplit;
break;
case "andjoin":
patternType = Pattern.PatternTypes.Andjoin;
break;
case "forbidden":
patternType = Pattern.PatternTypes.Forbidden;
break;
//ignore non-fitting patterns.
default:
continue;
}
//Ignore empty Patterns.
if (!patternTypeNode.HasChildNodes)
continue;
//Map Pattern
for (int j = 0; j < patternTypeNode.ChildNodes.Count; j++)
{
// mapping.AddPattern(new Pattern(patternTypeNode.ChildNodes[j], mapping, patternType));
}
}
}
}
/// <summary>
/// Parse Patterns from mapping.
/// </summary>
/// <param name="mapping">Current (incomplete) mapping</param>
/// <param name="patternsNode">Xmlnode Entrypoint for Pattern Parsing</param>
/// <author>Carsten Cordes, Thomas Meents</author>
private static void ParsePatterns(Mapping mapping, XmlNode patternsNode)
{
//If there are patterns
if (patternsNode != null && patternsNode.HasChildNodes)
{
//Parse them.
for (int i = 0; i < patternsNode.ChildNodes.Count; i++)
{
XmlNode patternTypeNode = patternsNode.ChildNodes[i];
Pattern.PatternTypes patternType;
//Which kind of pattern?
switch (patternTypeNode.Name.ToLower())
{
case "sequence":
patternType = Pattern.PatternTypes.Sequence;
break;
case "orsplit":
patternType = Pattern.PatternTypes.Orsplit;
break;
case "orjoin":
patternType = Pattern.PatternTypes.Orjoin;
break;
case "xorsplit":
patternType = Pattern.PatternTypes.Xorsplit;
break;
case "xorjoin":
patternType = Pattern.PatternTypes.Xorjoin;
break;
case "andsplit":
patternType = Pattern.PatternTypes.Andsplit;
break;
case "andjoin":
patternType = Pattern.PatternTypes.Andjoin;
break;
case "forbidden":
patternType = Pattern.PatternTypes.Forbidden;
break;
//ignore non-fitting patterns.
default:
continue;
}
//Ignore empty Patterns.
if (!patternTypeNode.HasChildNodes)
{
continue;
}
//Map Pattern
for (int j = 0; j < patternTypeNode.ChildNodes.Count; j++)
{
// mapping.AddPattern(new Pattern(patternTypeNode.ChildNodes[j], mapping, patternType));
}
}
}
}
/// <summary>
/// Parse a mapping from a file.
/// </summary>
/// <param name="filename">File to parse</param>
/// <returns>Mapping</returns>
/// <author>Carsten Cordes, Thomas Meents</author>
public static Mapping ParseMapping(String filename)
{
var mapping = new Mapping();
//Try load document
var document = new XmlDocument();
try
{
document.Load(filename);
}
catch (XmlException e)
{
return null;
throw new Exception("Error while parsing: \n" + e.Message);
}
catch (ArgumentException e)
{
return null;
throw new Exception("Error while opening file: \n" +e.Message);
}
//Find root element of Mapping.
XmlNode mappingNode = document.GetElementsByTagName("mapping").Item(0);
//Get Mapping name and representation Namespace.
if (mappingNode != null)
{
if (mappingNode.Attributes != null)
{
for (int i = 0; i < mappingNode.Attributes.Count; i++)
{
XmlNode attribute = mappingNode.Attributes.Item(i);
if (attribute.Name.ToLower().Equals("diagram"))
mapping.MappingName = attribute.Value;
if (attribute.Name.ToLower().Equals("namespace"))
mapping.Namespace = attribute.Value;
}
}
XmlNode patternsNode = null;
XmlNode typesNode = null;
//Mapping has no childs? return null.
if (!mappingNode.HasChildNodes)
return null;
//Get types and patterns node as entrypoint for types parsing and patterns parsing.
for (int i = 0; i < mappingNode.ChildNodes.Count; i++)
{
XmlNode currentNode = mappingNode.ChildNodes[i];
if (currentNode.Name.ToLower().Equals("patterns"))
patternsNode = currentNode;
if (currentNode.Name.ToLower().Equals("types"))
typesNode = currentNode;
}
//No Types? -> NULL
if (typesNode == null || !typesNode.HasChildNodes)
{
return null;
}
//Try Parsing all rules.
for (int i = 0; i < typesNode.ChildNodes.Count; i++)
{
MappingRule rule = CreateMapping(typesNode.ChildNodes.Item(i));
if (!mapping.AddRule(rule))
{
throw new Exception("Error while Mapping rule.");
}
}
//Parse Patterns with mapping.
ParsePatterns(mapping, patternsNode);
}
return mapping;
}
