/// <summary>
/// Sets a value that has been retrieved from a SIF Element in an inbound field
/// mapping operation.
/// </summary>
/// <param name="fieldName">The field name that is mapped to a SIFElement</param>
/// <param name="value">The value of the SIF element</param>
/// <param name="mapping">The FieldMappings that will be used to set this value or null</param>
public override void SetSifValue(string fieldName, SifSimpleType value, FieldMapping mapping)
{
int ordinal = SafeGetOrdinal(fieldName);
if (ordinal > -1)
{
fDataRow[ordinal] = value.RawValue;
}
}
/// <summary> Insert a FieldMapping definition at the specified index.
///
/// </summary>
/// <param name="mapping">A FieldMapping that defines the rules for mapping a field
/// of the application to an element or attribute of a SIF Data Object.
/// There can only be one FieldMapping per unique field name (i.e. if
/// you have defined a FieldMapping rule with a field name of 'STUDENTNUM',
/// there cannot be another FieldMapping rule with that same field name.)
/// To map a single application field to more than one SIF element or
/// attribute, create a FieldMapping with a unique field name (e.g. 'STUDENTNUM_2')
/// and call the <code>setAlias</code> method to define it as an alias
/// of an existing field.
///
/// </param>
/// <param name="index">The index to insert the rule at</param>
/// <param name="buildDomTree">true to create a DOM XmlElement element for this
/// FieldMapping and append it to the parent XmlElement
///
/// </param>
/// <exception cref="OpenADK.Library.Tools.Mapping.AdkMappingException"> AdkMappingException thrown if there is already a FieldMapping
/// with the specified field name
/// </exception>
protected internal void InsertRule(FieldMapping mapping,
int index,
bool buildDomTree)
{
XmlElement relativeTo = null;
if (fFieldRules == null)
{
fFieldRules = new List <FieldMapping>();
}
else
{
// Check for duplicate
foreach (FieldMapping existing in fFieldRules)
{
if (existing.Key == mapping.Key)
{
throw new AdkMappingException("Duplicate field mapping: " + mapping.Key, null);
}
}
// If we'll be building a child DOM XmlElement, find the existing XmlElement
// that it will be inserted at
if (buildDomTree && fNode != null && fFieldRules.Count > index)
{
relativeTo = fFieldRules[index].XmlElement;
}
}
try
{
fFieldRules.Insert(index, mapping);
}
catch (Exception ex)
{
throw new AdkMappingException(ex.ToString(), null);
}
if (buildDomTree && fNode != null)
{
// Create and insert a child DOM XmlElement
XmlElement element = fNode.OwnerDocument.CreateElement(Mappings.XML_FIELD);
mapping.XmlElement = element;
mapping.ToXml(element);
if (relativeTo != null)
{
fNode.InsertBefore(element, relativeTo);
}
else
{
fNode.AppendChild(element);
}
}
}
/// <summary> Produces a duplicate of this Rule object
///
/// </summary>
/// <returns> A "deep copy" of this Rule object
/// </returns>
public override Rule Copy(FieldMapping newParent)
{
OtherIdRule m = new OtherIdRule(fMapping == null ? null : fMapping.Copy());
if (fNode != null && newParent.fNode != null)
{
m.fNode = (XmlElement)fNode.CloneNode(false);
}
return(m);
}
/// <summary> Produces a duplicate of this Rule object
///
/// </summary>
/// <returns> A "deep copy" of this Rule object
/// </returns>
public override Rule Copy(FieldMapping newParent)
{
XPathRule clone = new XPathRule(fDef);
if (newParent.fNode != null)
{
newParent.fNode.InnerText = fDef;
}
return(clone);
}
/// <summary> Remove a FieldMapping definition</summary>
public void RemoveRule(FieldMapping mapping)
{
if (fFieldRules != null)
{
fFieldRules.Remove(mapping);
// Remove the DOM XmlElement if there is one
XmlElement n = mapping.XmlElement;
if (n != null)
{
n.ParentNode.RemoveChild(n);
}
}
}
/// <summary> Removes the FieldMapping at the specified index</summary>
/// <param name="index">The zero-based index of the FieldMapping
/// </param>
public void RemoveRule(int index)
{
if (fFieldRules != null && index >= 0 && index < fFieldRules.Count)
{
FieldMapping existing = fFieldRules[index];
fFieldRules.RemoveAt(index);
// Remove the DOM XmlElement if there is one
XmlElement n = existing == null ? null : existing.XmlElement;
if (n != null)
{
n.ParentNode.RemoveChild(n);
}
}
}
/**
* Evaluates the filters defined for this FieldMapping. If any of the filters
* evaluate to false, the FieldMapping is not added
*
* @param fieldMapping The FieldMapping to add
* @return True if the FieldMapping was added. Otherwise false
*/
private bool AddRule(FieldMapping fieldMapping)
{
MappingsFilter filt = fieldMapping.Filter;
// Filter out this rule?
if (filt != null)
{
if (!filt.EvalDirection(fDirection) ||
!filt.EvalVersion(fSIFVersion))
{
return(false);
}
}
fFieldMappings.Add(fieldMapping);
return(true);
}
/// <summary> Creates a copy this ObjectMapping instance.
///
/// </summary>
/// <returns> A "deep copy" of this object
/// </returns>
public virtual FieldMapping Copy(ObjectMapping newParent)
{
FieldMapping m = new FieldMapping();
if (fNode != null && newParent.fNode != null)
{
m.fNode = (XmlElement)newParent.fNode.OwnerDocument.ImportNode(fNode, false);
}
m.FieldName = fField;
m.DefaultValue = fDefValue;
m.Alias = fAlias;
m.ValueSetID = fValueSet;
m.NullBehavior = fNullBehavior;
if (fFilter != null)
{
MappingsFilter filtCopy = new MappingsFilter();
filtCopy.fVersion = fFilter.fVersion;
filtCopy.fDirection = fFilter.fDirection;
m.Filter = filtCopy;
}
m.DataType = fDatatype;
if (fRule != null)
{
m.fRule = fRule.Copy(m);
}
else
{
m.fRule = null;
}
return(m);
}
/**
* Creates a new FieldMapping instance and populates its properties from
* the given XML Element
* @param parent
* @param element
* @return a new FieldMapping instance
* @throws ADKConfigException If the FieldMapping cannot read expected
* values from the DOM Node
*/
public static FieldMapping FromXml(
ObjectMapping parent,
XmlElement element)
{
if (element == null)
{
throw new ArgumentException("Argument: 'element' cannot be null");
}
String name = element.GetAttribute(ATTR_NAME);
FieldMapping fm = new FieldMapping();
fm.SetNode(element);
fm.FieldName = name;
fm.DefaultValue = XmlUtils.GetAttributeValue(element, ATTR_DEFAULT);
fm.Alias = XmlUtils.GetAttributeValue(element, ATTR_ALIAS);
fm.ValueSetID = XmlUtils.GetAttributeValue(element, ATTR_VALUESET);
String ifNullBehavior = element.GetAttribute(ATTR_IFNULL);
if (ifNullBehavior.Length > 0)
{
if (String.Compare(ifNullBehavior, "default", true) == 0)
{
fm.NullBehavior = MappingBehavior.IfNullDefault;
}
else if (String.Compare(ifNullBehavior, "suppress", true) == 0)
{
fm.NullBehavior = MappingBehavior.IfNullSuppress;
}
}
String dataType = element.GetAttribute(ATTR_DATATYPE);
if (dataType != null && dataType.Length > 0)
{
try
{
fm.DataType = (SifDataType)Enum.Parse(typeof(SifDataType), dataType, true);
}
catch (FormatException iae)
{
Adk.Log.Warn("Unable to parse datatype '" + dataType + "' for field " + name, iae);
}
}
String filtVer = element.GetAttribute(ATTR_SIFVERSION);
String filtDir = element.GetAttribute(ATTR_DIRECTION);
if (!(String.IsNullOrEmpty(filtVer)) || !(String.IsNullOrEmpty(filtDir)))
{
MappingsFilter filt = new MappingsFilter();
if (!String.IsNullOrEmpty(filtVer))
{
filt.SifVersion = filtVer;
}
if (!String.IsNullOrEmpty(filtDir))
{
if (String.Compare(filtDir, "inbound", true) == 0)
{
filt.Direction = MappingDirection.Inbound;
}
else if (String.Compare(filtDir, "outbound", true) == 0)
{
filt.Direction = MappingDirection.Outbound;
}
else
{
throw new AdkConfigException(
"Field mapping rule for " + parent.ObjectType + "." + fm.FieldName +
" specifies an unknown Direction flag: '" + filtDir + "'");
}
}
fm.Filter = filt;
}
// FieldMapping must either have node text or an <otherid> child
XmlElement otherIdNode = XmlUtils.GetFirstElementIgnoreCase(element, "otherid");
if (otherIdNode == null)
{
String def = element.InnerText;
if (def != null)
{
fm.SetRule(def);
}
else
{
fm.SetRule("");
}
}
else
{
fm.SetRule(OtherIdMapping.FromXml(parent, fm, otherIdNode), otherIdNode);
}
return(fm);
}
/// <summary>
/// Gets the specified value from the underlying IDictionary
/// </summary>
/// <param name="fieldName"></param>
/// <param name="typeConverter"></param>
/// <param name="mapping"></param>
/// <returns></returns>
public SifSimpleType GetSifValue(String fieldName, TypeConverter typeConverter, FieldMapping mapping)
{
if (fMap.Contains(fieldName))
{
Object value = fMap[fieldName];
return(FromMapValue(value, typeConverter));
}
else
{
// No value in the Map. Return null
return(null);
}
}
/// <summary> /// Gets a value from the underlying data store to be used in an outbound /// field mapping operation /// </summary> /// <param name="fieldName"> The field name that is mapped to a SIFElement</param> /// <param name="typeConverter">The converter class for the requested SIF data type</param> /// <param name="mapping">The FieldMapping this value was generated from or null</param> /// <returns>The value to set to the SIF element. This value must contain the /// SIFSimpleType subclass represented by the SIFTypeConverter passed in to the /// method.</returns> public abstract SifSimpleType GetSifValue(string fieldName, TypeConverter typeConverter, FieldMapping mapping);
/// <summary> /// Sets a value that has been retrieved from a SIF Element in an inbound field /// mapping operation. /// </summary> /// <param name="fieldName">The field name that is mapped to a SIFElement</param> /// <param name="value">The value of the SIF element</param> /// <param name="mapping">The FieldMappings that will be used to set this value or null</param> public abstract void SetSifValue(string fieldName, SifSimpleType value, FieldMapping mapping);
/// <summary>
/// Sets a value that has been retrieved from a SIF Element in an inbound field
/// mapping operation.
/// </summary>
/// <param name="fieldName">The field name that is mapped to a SIFElement</param>
/// <param name="value">The value of the SIF element</param>
/// <param name="mapping">The FieldMappings that will be used to set this value or null</param>
public void SetSifValue(string fieldName, SifSimpleType value, FieldMapping mapping)
{
throw new NotSupportedException("Unable to set values to a DataReader");
}
/// <summary> Insert a FieldMapping definition at the specified index.
///
/// </summary>
/// <param name="mapping">A FieldMapping that defines the rules for mapping a field
/// of the application to an element or attribute of a SIF Data Object.
/// There can only be one FieldMapping per unique field name (i.e. if
/// you have defined a FieldMapping rule with a field name of 'STUDENTNUM',
/// there cannot be another FieldMapping rule with that same field name.)
/// To map a single application field to more than one SIF element or
/// attribute, create a FieldMapping with a unique field name (e.g. 'STUDENTNUM_2')
/// and call the <code>setAlias</code> method to define it as an alias
/// of an existing field.
///
/// </param>
/// <exception cref="AdkMappingException"> thrown if there is already a FieldMapping
/// with the specified field name
/// </exception>
/// <param name="index">The index to insert the rule at</param>
public void InsertRule(FieldMapping mapping,
int index)
{
InsertRule(mapping, index, true);
}
/// <summary> Appends a FieldMapping definition
///
/// </summary>
/// <param name="mapping">A FieldMapping that defines the rules for mapping a field
/// of the application to an element or attribute of a SIF Data Object.
/// There can only be one FieldMapping per unique field name (i.e. if
/// you have defined a FieldMapping rule with a field name of 'STUDENTNUM',
/// there cannot be another FieldMapping rule with that same field name.)
/// To map a single application field to more than one SIF element or
/// attribute, create a FieldMapping with a unique field name (e.g. 'STUDENTNUM_2')
/// and call the <code>setAlias</code> method to define it as an alias
/// of an existing field.
///
/// </param>
/// <param name="buildDomTree">true to create a DOM XmlElement element for this
/// FieldMapping and append it to the parent XmlElement
///
/// </param>
/// <exception cref="AdkMappingException"> thrown if there is already a FieldMapping
/// with the specified field name
/// </exception>
protected internal void AddRule(FieldMapping mapping,
bool buildDomTree)
{
InsertRule(mapping, fFieldRules == null ? 0 : fFieldRules.Count, buildDomTree);
}
/// <summary> Appends a FieldMapping definition
///
/// </summary>
/// <param name="mapping">A FieldMapping that defines the rules for mapping a field
/// of the application to an element or attribute of a SIF Data Object.
/// There can only be one FieldMapping per unique field name (i.e. if
/// you have defined a FieldMapping rule with a field name of 'STUDENTNUM',
/// there cannot be another FieldMapping rule with that same field name.)
/// To map a single application field to more than one SIF element or
/// attribute, create a FieldMapping with a unique field name (e.g. 'STUDENTNUM_2')
/// and call the <code>setAlias</code> method to define it as an alias
/// of an existing field.
///
/// </param>
/// <exception cref="AdkMappingException"> thrown if there is already a FieldMapping
/// with the specified field name
/// </exception>
public void AddRule(FieldMapping mapping)
{
InsertRule(mapping, fFieldRules == null ? 0 : fFieldRules.Count, true);
}
/// <summary>
/// Gets a value from the underlying data store to be used in an outbound
/// field mapping operation
/// </summary>
/// <param name="fieldName"> The field name that is mapped to a SIFElement</param>
/// <param name="typeConverter">The converter class for the requested SIF data type</param>
/// <param name="mapping">The FieldMapping this value was generated from or null</param>
/// <returns>The value to set to the SIF element. This value must contain the
/// SIFSimpleType subclass represented by the SIFTypeConverter passed in to the
/// method.</returns>
public override SifSimpleType GetSifValue(string fieldName, TypeConverter typeConverter, FieldMapping mapping)
{
int ordinal = SafeGetOrdinal(fieldName);
if (ordinal == -1)
{
return(null);
}
object value = fDataRow[ordinal];
return(typeConverter.GetSifSimpleType(value));
}
/// <summary> Produces a duplicate of this Rule object /// /// </summary> /// <returns> A "deep copy" of this Rule object /// </returns> public abstract Rule Copy(FieldMapping newParent);
