protected void Validate(ExprLeaf exprLeaf)
{
this.ValidateBase((ExprItem)exprLeaf);
Invariant(exprLeaf.Item != null, string.Format(CommonStrings.XMustNotBeNull, "ExprLeaf.Item"));
Invariant(exprLeaf.ReferenceType != null, string.Format(CommonStrings.XMustNotBeNull, "ExprLeaf.ReferenceType"));
}
private void ReadXml(ExprLeaf exprLeaf)
{
reader.ReadStartElement();
reader.MoveToContent();
this.ReadXmlBase((ExprItem)exprLeaf);
if (reader.LocalName != "item")
throw new InvalidXmlException("item", reader.LocalName);
exprLeaf.Item = GetAnyObject(exprLeaf.Type, reader.LocalName);
reader.MoveToContent();
if (reader.LocalName != "reference_type")
throw new InvalidXmlException("reference_type", reader.LocalName);
exprLeaf.ReferenceType = reader.ReadElementContentAsString("reference_type", OpenEhrNamespace);
reader.MoveToContent();
reader.ReadEndElement();
reader.MoveToContent();
}
internal static ExprItem ExprItem(string typeName)
{
DesignByContract.Check.Require(!string.IsNullOrEmpty(typeName), string.Format(CommonStrings.XMustNotBeNullOrEmpty, "typeName"));
ExprItem exprItem = null;
switch (typeName)
{
case "EXPR_LEAF":
exprItem = new ExprLeaf();
break;
case "EXPR_UNARY_OPERATOR":
exprItem = new ExprUnaryOperator();
break;
case "EXPR_BINARY_OPERATOR":
exprItem = new ExprBinaryOperator();
break;
default:
throw new NotSupportedException("type not supported: " + typeName);
}
DesignByContract.Check.Ensure(exprItem != null, "exprItem must not be null.");
return exprItem;
}
private void WriteXml(ExprLeaf exprItem)
{
Check.Require(exprItem.Item != null, string.Format(CommonStrings.XMustNotBeNull, "exprItem.Item"));
Check.Require(!string.IsNullOrEmpty(exprItem.ReferenceType), string.Format(CommonStrings.XMustNotBeNullOrEmpty, "exprItem.ReferenceType"));
this.WriteXmlBase((ExprItem)exprItem);
writer.WriteStartElement(UseOpenEhrPrefix(writer), "item", OpenEhrNamespace);
string itemType = exprItem.Type;
if (itemType.StartsWith("C_"))
{
writer.WriteAttributeString(UseXsiPrefix(writer), "type", XsiNamespace, itemType);
}
else
{
itemType = UseXsdPrefix(writer) + ":" + itemType.ToLower();
writer.WriteAttributeString(UseXsiPrefix(writer), "type", XsiNamespace, itemType);
}
if (exprItem.Item is CPrimitive)
this.WriteXml((CPrimitive)(exprItem.Item));
else
{
if (exprItem.Type.ToLower() == "boolean")
writer.WriteString(exprItem.Item.ToString().ToLower());
else
writer.WriteString(exprItem.Item.ToString());
}
writer.WriteEndElement();
writer.WriteElementString(UseOpenEhrPrefix(writer), "reference_type", OpenEhrNamespace, exprItem.ReferenceType);
}