public bool ReadRaw(XmlReader reader,
SifVersion version,
SifElement parent,
SifFormatter formatter)
{
string name = reader.LocalName;
if (name.Equals(fDateElement))
{
String dateValue = ConsumeElementTextValue(reader, version);
DateTime?date = formatter.ToDate(dateValue);
if (date.HasValue)
{
DateTime tsValue = date.Value;
SifDateTime dateTime = new SifDateTime(tsValue);
parent.SetField(dateTime.CreateField(parent, fElementDef));
}
}
else if (name.Equals(fTimeElement))
{
String timeValue = ConsumeElementTextValue(reader, version);
DateTime?time = formatter.ToTime(timeValue);
if (time.HasValue)
{
DateTime val = time.Value;
// See if the Timestamp field already exists on the parent
SimpleField timeStampField = parent.GetField(fElementDef);
if (timeStampField == null)
{
// Doesn't exist, create it
SifDateTime dateTime = new SifDateTime(val);
parent.SetField(dateTime.CreateField(parent, fElementDef));
}
else
{
// Exists, update the time portion of the date
SifDateTime sdt = (SifDateTime)timeStampField.SifValue;
if (sdt != null && sdt.Value.HasValue)
{
DateTime tsValue = sdt.Value.Value;
tsValue = tsValue.Add(val.TimeOfDay);
sdt = new SifDateTime(tsValue);
// Overwrite the current value
parent.SetField(sdt.CreateField(parent, fElementDef));
}
}
}
}
else
{
return(false);
}
return(true);
}
private void SetFieldValueFromAttribute(
SifElement element,
XmlReader reader,
IDtd dtd,
SifVersion version,
SifFormatter formatter,
IZone zone)
{
IElementDef elementDef = element.ElementDef;
IElementDef field = dtd.LookupElementDef(element.ElementDef, reader.LocalName);
if (field == null && reader.Prefix != null)
{
if (reader.LocalName == SifWriter.NIL && reader.NamespaceURI == XmlSchema.InstanceNamespace)
{
TypeConverter converter = elementDef.TypeConverter;
if (converter != null)
{
SifSimpleType sst = converter.GetSifSimpleType(null);
element.SetField(elementDef, sst);
}
return;
}
else if (reader.Name.StartsWith("xmlns"))
{
return;
}
else
{
field = dtd.LookupElementDef(elementDef, reader.Prefix + ":" + reader.LocalName);
}
}
if (field != null)
{
string strVal = reader.Value.Trim();
SifSimpleType val = ParseValue(field, strVal, version, formatter, zone);
element.SetField(field, val);
}
else if (element.ElementDef.EarliestVersion >= SifVersion.SIF20 && version < SifVersion.SIF20)
{
Adk.Log.Warn("Field " + element.ElementDef.ClassName + "." + (reader.Prefix == null ? reader.LocalName : reader.Prefix + ":" + reader.LocalName) + " does not exist in the sif 2.0 specification onwards. It may or may not be valid in sif 1.5r1. It will be ignored.");
}
else
{
// TODO: Log and gracefully ignore, depending on whether the ADK is set to strict or loose parsing
throw new SifException
(SifErrorCategoryCode.Xml, SifErrorCodes.XML_GENERIC_VALIDATION_3,
"Unknown element or attribute",
reader.LocalName + " is not a recognized attribute of the " +
elementDef.Name + " element (SIF " +
element.EffectiveSIFVersion.ToString() + ")", zone);
}
}
private void SetFieldValueFromElement(IElementDef def,
SifElement element,
XmlReader reader,
SifVersion version,
SifFormatter formatter,
IZone zone)
{
// Check for xsi:nill
if (reader.IsEmptyElement)
{
// no data to set
return;
}
// Look for the xsi:nill attribute that signals a null value
while (reader.MoveToNextAttribute())
{
if (reader.LocalName == SifWriter.NIL && reader.NamespaceURI == XmlSchema.InstanceNamespace)
{
SifSimpleType val = def.TypeConverter.GetSifSimpleType(null);
element.SetField(def, val);
while (reader.NodeType != XmlNodeType.EndElement)
{
reader.Read();
}
return;
}
else
{
// TODO: This is an unknown attribute. Log and continue
}
}
while (reader.NodeType == XmlNodeType.Element)
{
reader.Read();
}
if (reader.NodeType == XmlNodeType.Text)
{
SifSimpleType val = ParseValue(def, reader.Value.Trim(), version, formatter, zone);
element.SetField(def, val);
}
// TODO: Not sure if this will always advance as expected.
while (reader.NodeType != XmlNodeType.EndElement)
{
reader.Read();
}
}
/// <summary>
/// Adds a SimpleField parsed from a specific version of SIF to the parent.
/// </summary>
/// <param name="contentParent">The element to add content to</param>
/// <param name="fieldDef">The metadata definition of the field to set</param>
/// <param name="data">The value to set to the field</param>
/// <param name="version">The version of SIF that the SIFElement is being constructed
/// from</param>
/// <returns></returns>
public virtual SimpleField SetField(SifElement contentParent,
IElementDef fieldDef,
SifSimpleType data,
SifVersion version)
{
return(contentParent.SetField(fieldDef, data));
}
public override void SetValue(object rawValue)
{
SifElementPointer immediateParent = (SifElementPointer)Parent;
SifElement parentElement = immediateParent.Element as SifElement;
SifSimpleType sst = GetSIFSimpleTypeValue(fElementDef, rawValue);
parentElement.SetField(fElementDef, sst);
}
/// <summary>
/// Creates a child element, if supported by this node
/// </summary>
/// <param name="parentPointer"></param>
/// <param name="formatter"></param>
/// <param name="version"></param>
/// <param name="context"></param>
/// <returns></returns>
public INodePointer CreateChild(INodePointer parentPointer, SifFormatter formatter, SifVersion version,
SifXPathContext context)
{
// 1) Create an instance of the SimpleField with a null value (It's assigned later)
//
// STEP 2
// Find the actual field to set the value to
//
SifElement parent = (SifElement)((SifElementPointer)parentPointer).Element;
SifElement targetElement = parent;
if (!fElementDef.Field)
{
// This indicates a child SifElement that needs to be created
targetElement = SifElement.Create(parent, fElementDef);
formatter.AddChild(parent, targetElement, version);
}
IElementDef fieldDef = null;
if (fValueXpath.Equals("."))
{
fieldDef = fElementDef;
}
else
{
String fieldName = fValueXpath;
if (fValueXpath.StartsWith("@"))
{
fieldName = fValueXpath.Substring(1);
}
fieldDef = Adk.Dtd.LookupElementDef(fElementDef, fieldName);
}
if (fieldDef == null)
{
throw new ArgumentException("Support for value path {" + fValueXpath +
"} is not supported by XPathSurrogate.");
}
SifSimpleType ssf = fieldDef.TypeConverter.GetSifSimpleType(null);
SimpleField sf = ssf.CreateField(targetElement, fieldDef);
targetElement.SetField(sf);
// 2) built out a fake set of node pointers representing the SIF 1.5r1 path and
// return the root pointer from that stack
return(BuildLegacyPointers(parentPointer, sf));
}
public override INodePointer CreateAttribute(SifXPathContext context, String name)
{
IElementDef subEleDef = GetChildDef(name);
SifElement sifElement = (SifElement)fElement;
if (subEleDef.Field)
{
SifSimpleType ssf = subEleDef.TypeConverter.GetSifSimpleType(null);
SimpleField sf = ssf.CreateField(sifElement, subEleDef);
sifElement.SetField(sf);
return(SimpleFieldPointer.Create(this, sf));
}
throw new ArgumentException(
"Factory could not create a child node for path: " + Name
+ "/" + name);
}
public bool ReadRaw(XmlReader reader,
SifVersion version,
SifElement parent,
SifFormatter formatter)
{
String elementName = fElementDef.Name;
if (!reader.LocalName.Equals(elementName))
{
return(false);
}
String value = ConsumeElementTextValue(reader, version);
if (value != null && value.Length > 0)
{
DateTime?time = formatter.ToTime(value);
SifTime sifTime = new SifTime(time);
parent.SetField(sifTime.CreateField(parent, fElementDef));
}
return(true);
}
/// <summary> Assigns a list of attribute values to a destination SifElement.</summary>
/// <param name="dst">The SifElement to copy the attributes to
/// </param>
/// <param name="attributes">An array where element N is an attribute name and
/// element N+1 is the attribute value
/// </param>
private void _copyAttributes(SifElement dst, string[] attributes)
{
for (int i = 0; i < attributes.Length; i++)
{
IElementDef attrDef = Adk.Dtd.LookupElementDef(dst.ElementDef + "_" + attributes[i]);
dst.SetField(attrDef, attributes[++i]);
}
}
public bool ReadRaw(
XmlReader reader,
SifVersion version,
SifElement parent,
SifFormatter formatter)
{
String value = null;
//
// STEP 1
// Determine if this surrogate can handle the parsing of this node.
// Retrieve the node value as a string
//
String[] xPathParts = fLegacyXpath.Split('/');
XmlNodeType eventType = reader.NodeType;
String localName = reader.LocalName;
if (eventType == XmlNodeType.Element &&
localName.Equals(xPathParts[0]))
{
try
{
int currentSegment = 0;
int lastSegment = xPathParts.Length - 1;
if (xPathParts[lastSegment].StartsWith("@"))
{
lastSegment--;
}
while (currentSegment < lastSegment)
{
reader.Read();
currentSegment++;
if (!reader.LocalName.Equals(xPathParts[currentSegment]))
{
ThrowParseException
("Element {" + reader.LocalName +
"} is not supported by XPathSurrogate path " + fLegacyXpath,
version);
}
}
// New we are at the last segment in the XPath, and the XMLStreamReader
// should be positioned on the proper node. The last segment is either
// an attribute or an element, which need to be read differently
String finalSegment = xPathParts[xPathParts.Length - 1];
if (finalSegment.StartsWith("@"))
{
value = reader.GetAttribute(finalSegment.Substring(1));
}
else
{
value = ReadElementTextValue(reader);
}
// Note: Unlike the Java ADK, Surrogates in the the .NET ADK do not have to worry about
// completely consuming the XMLElement and advancing to the next tag. The .NET
// Surrogates are handed a reader that only allows reading the current node and
// the parent reader is automatically advanced when the surrogate is done.
}
catch (Exception xse)
{
ThrowParseException(xse, reader.LocalName, version);
}
}
else
{
// No match was found
return(false);
}
//
// STEP 2
// Find the actual field to set the value to
//
IElementDef fieldDef;
SifElement targetElement = parent;
if (fValueXpath.Equals(".") && fElementDef.Field)
{
fieldDef = fElementDef;
}
else
{
// This indicates a child SifElement that needs to be created
try
{
targetElement = SifElement.Create(parent, fElementDef);
}
catch (AdkSchemaException adkse)
{
ThrowParseException(adkse, reader.LocalName, version);
}
formatter.AddChild(parent, targetElement, version);
if (fValueXpath.Equals("."))
{
fieldDef = fElementDef;
}
else
{
String fieldName = fValueXpath;
if (fValueXpath.StartsWith("@"))
{
fieldName = fValueXpath.Substring(1);
}
fieldDef = Adk.Dtd.LookupElementDef(fElementDef, fieldName);
}
}
if (fieldDef == null)
{
throw new InvalidOperationException
("Support for value path {" + fValueXpath +
"} is not supported by XPathSurrogate.");
}
//
// STEP 3
// Set the value to the field
//
TypeConverter converter = fieldDef.TypeConverter;
if (converter == null)
{
// TODO: Determine if we should be automatically creating a converter
// for elementDefs that don't have one, or whether we should just throw the
// spurious data away.
converter = SifTypeConverters.STRING;
}
SifSimpleType data = converter.Parse(formatter, value);
targetElement.SetField(fieldDef, data);
return(true);
}
private void SetFieldValueFromAttribute(
SifElement element,
XmlReader reader,
IDtd dtd,
SifVersion version,
SifFormatter formatter,
IZone zone )
{
IElementDef elementDef = element.ElementDef;
IElementDef field = dtd.LookupElementDef( element.ElementDef, reader.LocalName );
if ( field == null && reader.Prefix != null )
{
if(reader.LocalName == SifWriter.NIL && reader.NamespaceURI == XmlSchema.InstanceNamespace )
{
TypeConverter converter = elementDef.TypeConverter;
if ( converter != null )
{
SifSimpleType sst = converter.GetSifSimpleType( null );
element.SetField(elementDef, sst);
}
return;
}
else if( reader.Name.StartsWith( "xmlns" ) )
{
return;
}
else
{
field = dtd.LookupElementDef(elementDef, reader.Prefix + ":" + reader.LocalName);
}
}
if( field != null )
{
string strVal = reader.Value.Trim();
SifSimpleType val = ParseValue( field, strVal, version, formatter, zone );
element.SetField( field, val );
}
else if (element.ElementDef.EarliestVersion >= SifVersion.SIF20 && version < SifVersion.SIF20)
{
Adk.Log.Warn("Field " + element.ElementDef.ClassName + "." + (reader.Prefix == null ? reader.LocalName : reader.Prefix + ":" + reader.LocalName ) + " does not exist in the sif 2.0 specification onwards. It may or may not be valid in sif 1.5r1. It will be ignored." );
}
else
{
// TODO: Log and gracefully ignore, depending on whether the ADK is set to strict or loose parsing
throw new SifException
(SifErrorCategoryCode.Xml, SifErrorCodes.XML_GENERIC_VALIDATION_3,
"Unknown element or attribute",
reader.LocalName + " is not a recognized attribute of the " +
elementDef.Name + " element (SIF " +
element.EffectiveSIFVersion.ToString() + ")", zone);
}
}
private void SetFieldValueFromElement( IElementDef def,
SifElement element,
XmlReader reader,
SifVersion version,
SifFormatter formatter,
IZone zone )
{
// Check for xsi:nill
if ( reader.IsEmptyElement )
{
// no data to set
return;
}
// Look for the xsi:nill attribute that signals a null value
while ( reader.MoveToNextAttribute() )
{
if (reader.LocalName == SifWriter.NIL && reader.NamespaceURI == XmlSchema.InstanceNamespace)
{
SifSimpleType val = def.TypeConverter.GetSifSimpleType( null );
element.SetField( def, val );
while (reader.NodeType != XmlNodeType.EndElement)
{
reader.Read();
}
return;
}
else
{
// TODO: This is an unknown attribute. Log and continue
}
}
while ( reader.NodeType == XmlNodeType.Element )
{
reader.Read();
}
if ( reader.NodeType == XmlNodeType.Text )
{
SifSimpleType val = ParseValue( def, reader.Value.Trim(), version, formatter, zone );
element.SetField( def, val );
}
// TODO: Not sure if this will always advance as expected.
while ( reader.NodeType != XmlNodeType.EndElement )
{
reader.Read();
}
}
/// <summary>
/// Adds a SimpleField parsed from a specific version of SIF to the parent.
/// </summary>
/// <param name="contentParent">The element to add content to</param>
/// <param name="fieldDef">The metadata definition of the field to set</param>
/// <param name="data">The value to set to the field</param>
/// <param name="version">The version of SIF that the SIFElement is being constructed
/// from</param>
/// <returns></returns>
public virtual SimpleField SetField(SifElement contentParent,
IElementDef fieldDef,
SifSimpleType data,
SifVersion version)
{
return contentParent.SetField(fieldDef, data);
}
public bool ReadRaw( XmlReader reader,
SifVersion version,
SifElement parent,
SifFormatter formatter )
{
String elementName = fElementDef.Name;
if ( !reader.LocalName.Equals( elementName ) )
{
return false;
}
String value = ConsumeElementTextValue( reader, version );
if ( value != null && value.Length > 0 )
{
DateTime? time = formatter.ToTime( value );
SifTime sifTime = new SifTime( time );
parent.SetField( sifTime.CreateField( parent, fElementDef ) );
}
return true;
}
/// <summary>
/// Creates a child element and sets the text value
/// </summary>
/// <param name="relativeTo">The parent SIFElement to add the new element to</param>
/// <param name="tag">The tag name of the element</param>
/// <param name="valueBuilder">The ValueBuilder instance to use to evaluate macros</param>
/// <param name="version">The version of SIF for which this mapping operation is being evaluated</param>
/// <param name="textFormatter">The SIFFormatter instance used to parse strings into strongly-typed data values.
/// For many uses of this API, this formatter is equivalent to Adk.TextFormatter</param>
/// <param name="pathFormatter">The SIFFormatter instance used for setting child SIFElements on their parents.
/// This formatter may be different than the text formatter. The text formatter is, for
/// compatibility's sake defaulted to SIF 1.x. However, the path formatter must be
/// correct for the mappings path being evaluated.</param>
/// <returns></returns>
private SifElement _createChild(
SifElement relativeTo,
String tag,
IValueBuilder valueBuilder,
SifVersion version,
SifFormatter textFormatter,
SifFormatter pathFormatter)
{
string _tag = tag;
string assignValue = null;
int eq = tag.IndexOf('=');
if (eq != -1)
{
_tag = tag.Substring(0, (eq) - (0));
string str = tag.Substring(eq + 1);
assignValue = valueBuilder == null ? str : valueBuilder.Evaluate(str);
}
// Lookup the IElementDef
IElementDef def = Adk.Dtd.LookupElementDef(relativeTo.ElementDef, _tag);
if (def == null)
{
def = Adk.Dtd.LookupElementDef(_tag);
}
if (def == null)
{
throw new AdkSchemaException(_tag + " is not a recognized element or attribute of " + relativeTo.Tag);
}
try
{
TypeConverter defConverter = def.TypeConverter;
if (defConverter == null)
{
defConverter = SifTypeConverters.STRING;
}
if (def.Field)
{
SimpleField field = defConverter.ParseField(relativeTo, def, textFormatter, assignValue);
relativeTo.SetField(field);
}
else
{
// Create element instance
SifElement ele = (SifElement)ClassFactory.CreateInstance(def.FQClassName);
ele.ElementDef = def;
pathFormatter.AddChild(relativeTo, ele, version);
if (assignValue != null)
{
// TODO: THis needs to be done using the type converter
ele.TextValue = assignValue;
}
return ele;
}
}
catch (TypeLoadException tle)
{
throw new SystemException(
"The " + def.Package +
" Sdo module is not loaded (ensure the Adk is initialized to load this module)", tle);
}
catch (Exception thr)
{
throw new SystemException(
"Failed to create an instance of the " + def.ClassName + " class from the " + def.Package +
" Sdo module: ", thr);
}
return null;
}
/// <summary> Set a field value on a SifElement</summary>
/// <param name="parent">The SifElement on which to set the field
/// </param>
/// <param name="attr">The name of the attribute or simple child element
/// </param>
/// <param name="val">The text value to assign to the attribute or simple child element
/// </param>
private SimpleField _createField(SifElement parent, string attr, string val)
{
// Lookup the IElementDef relative to the parent
IElementDef def = Adk.Dtd.LookupElementDef(parent.ElementDef, attr);
if (def == null)
{
throw new AdkSchemaException(attr + " is not a recognized attribute of " + parent.Tag);
}
if (!def.Field)
{
throw new AdkSchemaException("Query references a complex element ('" + attr +
"') where an attribute or simple field was expected");
}
// Set the field value on the parent
return parent.SetField(def, val);
}
public bool ReadRaw( XmlReader reader,
SifVersion version,
SifElement parent,
SifFormatter formatter )
{
string name = reader.LocalName;
if ( name.Equals( fDateElement ) )
{
String dateValue = ConsumeElementTextValue( reader, version );
DateTime? date = formatter.ToDate( dateValue );
if ( date.HasValue )
{
DateTime tsValue = date.Value;
SifDateTime dateTime = new SifDateTime( tsValue );
parent.SetField( dateTime.CreateField( parent, fElementDef ) );
}
}
else if ( name.Equals( fTimeElement ) )
{
String timeValue = ConsumeElementTextValue( reader, version );
DateTime? time = formatter.ToTime( timeValue );
if ( time.HasValue )
{
DateTime val = time.Value;
// See if the Timestamp field already exists on the parent
SimpleField timeStampField = parent.GetField( fElementDef );
if ( timeStampField == null )
{
// Doesn't exist, create it
SifDateTime dateTime = new SifDateTime( val );
parent.SetField( dateTime.CreateField( parent, fElementDef ) );
}
else
{
// Exists, update the time portion of the date
SifDateTime sdt = (SifDateTime) timeStampField.SifValue;
if ( sdt != null && sdt.Value.HasValue )
{
DateTime tsValue = sdt.Value.Value;
tsValue = tsValue.Add( val.TimeOfDay );
sdt = new SifDateTime( tsValue );
// Overwrite the current value
parent.SetField( sdt.CreateField( parent, fElementDef ) );
}
}
}
}
else
{
return false;
}
return true;
}
