/// <summary>
///
/// </summary>
/// <param name="docA"></param>
/// <param name="docB"></param>
public static void CompareXmlDocs(XmlDocument docA, XmlDocument docB)
{
XmlComparisonRules rules = new XmlComparisonRules();
// optional output attributes
//rules.AddOptionalAttribute(null, "xmlns"); // any node
rules.AddOptionalAttribute(null, "xsi:schemaLocation");
//rules.AddOptionalAttribute("requestAllocation/attr:", "xsi:schemaLocation");
//rules.AddOptionalAttribute("requestAllocationRetracted/attr:", "xsi:schemaLocation");
// add default values
rules.AddDefaultAttribute(null, "entityIdScheme", "http://www.fpml.org/spec/2003/entity-id-RED-1-0");
rules.AddDefaultAttribute(null, "contractualSupplementScheme", "http://www.fpml.org/coding-scheme/contractual-supplement");
rules.AddDefaultAttribute(null, "currencyScheme", "http://www.fpml.org/ext/iso4217-2001-08-15");
rules.AddDefaultAttribute(null, "exchangeIdScheme", "http://www.fpml.org/spec/2002/exchange-id-MIC-1-0");
rules.AddDefaultAttribute(null, "partyIdScheme", "http://www.fpml.org/ext/iso9362");
rules.AddDefaultAttribute(null, "facilityTypeScheme", "http://www.fpml.org/coding-scheme/facility-type");
rules.AddDefaultAttribute(null, "dayCountFractionScheme", "http://www.fpml.org/coding-scheme/day-count-fraction");
rules.AddDefaultAttribute(null, "routingIdCodeScheme", "http://www.fpml.org/ext/iso9362");
rules.AddDefaultAttribute(null, "floatingRateIndexScheme", "http://www.fpml.org/coding-scheme/floating-rate-index");
rules.AddDefaultAttribute(null, "interpolationMethodScheme", "http://www.fpml.org/coding-scheme/interpolation-method");
rules.AddDefaultAttribute(null, "businessCenterScheme", "http://www.fpml.org/coding-scheme/business-center");
rules.AddDefaultAttribute(null, "creditSupportAgreementTypeScheme", "http://www.fpml.org/coding-scheme/credit-support-agreement-type");
rules.AddDefaultAttribute(null, "collateralMarginCallResponseReasonScheme", "http://www.fpml.org/coding-scheme/collateral-margin-call-response-reason");
rules.AddDefaultAttribute(null, "categoryScheme", "http://www.fpml.org/coding-scheme/org-type-category");
// nodes (trees) to ignore
rules.AddPathToIgnore("xml/"); // XML declaration
//rules.AddPathToIgnore("GWML/Signature/");
//rules.AddPathToIgnore("GWML/trade/dateAdjustmentMethods/");
//rules.AddPathToIgnore("GWML/trade/tradeHeader/partyTradeIdentifier/tradeId");
CompareXmlAttrColls(rules, "attr:", docA.Attributes, docB.Attributes);
CompareXmlNodeLists(rules, "", docA.ChildNodes, "", docB.ChildNodes);
}
private static void CompareXmlAttrColls(XmlComparisonRules rules, string path, XmlAttributeCollection a, XmlAttributeCollection b)
{
if (rules.IsIgnoredPath(path))
{
return;
}
if (a == null && b == null)
{
return;
}
SortedDictionary <string, XmlAttribute> listA = FilterAndSortAttrColl(path, a);
SortedDictionary <string, XmlAttribute> listB = FilterAndSortAttrColl(path, b);
// get all keys
SortedSet <string> attrKeys = new SortedSet <string>();
foreach (var key in listA.Keys)
{
attrKeys.Add(key);
}
foreach (var key in listB.Keys)
{
attrKeys.Add(key);
}
// compare attrs
foreach (string attrKey in attrKeys)
{
if (!listA.TryGetValue(attrKey, out var attrA))
{
continue;
}
if (listB.TryGetValue(attrKey, out var attrB))
{
// both exist - compare
CompareXmlAttribute(rules, path + AttrSortKey(attrA) + "/", attrA, attrB);
}
else
{
// attrB is missing - might be optional or have a default value
if (rules.IsOptionalAttribute(path, attrKey))
{
// allowed to be missing
continue;
}
if (rules.TryGetDefaultAttribute(path, attrKey, out var defaultAttribute))
{
CompareXmlAttribute(rules, path + AttrSortKey(attrA) + "/", attrA, defaultAttribute);
}
else
{
// missing and no default value - oops!
throw new Exception($"[{path}] Emitted Attribute '{attrKey}' missing!");
}
}
}
}
private static void CompareXmlTexts(XmlComparisonRules rules, string path, XmlText a, XmlText b)
{
if (a == null)
{
throw new ArgumentNullException(nameof(a));
}
if (rules.IsIgnoredPath(path))
{
return;
}
if (a.InnerXml != b.InnerXml)
{
throw new Exception("[" + path + "] a.InnerXml != b.InnerXml");
}
}
private static void CompareXmlAttribute(XmlComparisonRules rules, string path, XmlAttribute a, XmlDefaultAttribute b)
{
if (rules.IsIgnoredPath(path))
{
return;
}
if (a.Prefix != b.Prefix)
{
throw new Exception($"[{path}] Attr Prefix '{a.Prefix}' != '{b.Prefix}'");
}
if (a.LocalName != b.LocalName)
{
throw new Exception($"[{path}] Attr LocalName '{a.LocalName}' != '{b.LocalName}'");
}
if (a.Value != b.Value)
{
throw new Exception($"[{path}] Attr Value '{a.Value}' != '{b.Value}'");
}
}
private static void CompareXmlNodeLists(XmlComparisonRules rules, string pathA, XmlNodeList nodeListA, string pathB, XmlNodeList nodeListB)
{
if (rules.IsIgnoredPath(pathA))
{
return;
}
if (nodeListA == null && nodeListB == null)
{
return;
}
SortedDictionary <string, XmlNode> listA = FilterAndSortNodeList(pathA, pathB, nodeListA);
SortedDictionary <string, XmlNode> listB = FilterAndSortNodeList(pathA, pathB, nodeListB);
// get all keys
SortedSet <string> nodeKeys = new SortedSet <string>();
foreach (var key in listA.Keys)
{
nodeKeys.Add(key);
}
foreach (var key in listB.Keys)
{
nodeKeys.Add(key);
}
// compare nodes
foreach (string nodeKey in nodeKeys)
{
if (!listA.TryGetValue(nodeKey, out var nodeA))
{
continue;
}
if (!listB.TryGetValue(nodeKey, out var nodeB))
{
throw new Exception($"[{pathA}] Emitted node '{nodeKey}' missing!");
}
// both exist - compare
CompareXmlNodes(rules, pathA + NodeSortKeyOld(nodeA, null) + "/", nodeA, pathB + NodeSortKeyOld(nodeB, null) + "/", nodeB);
}
}
private static void CompareXmlNodes(XmlComparisonRules rules, string pathA, XmlNode nodeA, string pathB, XmlNode nodeB)
{
if (rules.IsIgnoredPath(pathA))
{
return;
}
if (rules.IsIgnoredPath(pathB))
{
return;
}
if (nodeA == null && nodeB == null)
{
return;
}
if (nodeA == null || nodeB == null)
{
throw new Exception("[" + pathA + "] (nodeA == null) || (nodeB == null)");
}
if (nodeA.GetType() != nodeB.GetType())
{
throw new Exception("[" + pathA + "] nodeA.GetType() != nodeB.GetType()");
}
// generic node comparison
CompareXmlNodeNames(pathA, nodeA, nodeB);
CompareXmlNodeTypes(pathA, nodeA, nodeB);
CompareXmlAttrColls(rules, pathA + "attr:", nodeA.Attributes, nodeB.Attributes);
if (nodeA.HasChildNodes || nodeB.HasChildNodes)
{
CompareXmlNodeLists(rules, pathA, nodeA.ChildNodes, pathB, nodeB.ChildNodes);
}
else
{
// no children - just compare value
if (String.Compare(nodeA.Value, nodeB.Value, StringComparison.OrdinalIgnoreCase) != 0)
{
// values are textually different but could be numerically equal
if (BothAreDateTimes(nodeA.Value, nodeB.Value))
{
if (!CompareDateTimes(DateTimeStyles.None, nodeA.Value, nodeB.Value) &&
!CompareDateTimes(DateTimeStyles.AssumeLocal, nodeA.Value, nodeB.Value) &&
!CompareDateTimes(DateTimeStyles.AssumeUniversal, nodeA.Value, nodeB.Value) &&
!CompareDateTimes(DateTimeStyles.NoCurrentDateDefault, nodeA.Value, nodeB.Value) &&
!CompareWithDateTimeZoneParser(nodeA.Value, nodeB.Value, false) &&
!CompareWithDateTimeZoneParser(nodeA.Value, nodeB.Value, true)
)
{
// date/times are not equal!
throw new Exception($"[{pathA}] NodeValue (as DateTime) '{nodeA.Value}' != '{nodeB.Value}'");
}
}
else if (DateTimeOffset.TryParse(nodeA.Value, out var dtoA) && DateTimeOffset.TryParse(nodeB.Value, out var dtoB))
{
if (dtoA != dtoB)
{
throw new Exception($"[{pathA}] NodeValue (as DateTimeOffset) '{dtoA}' != '{dtoB}'");
}
}
else if (Int32.TryParse(nodeA.Value, out var intA) && Int32.TryParse(nodeB.Value, out var intB))
{
if (intA != intB)
{
throw new Exception($"[{pathA}] NodeValue (as Int32) '{intA}' != '{intB}'");
}
}
else if (Decimal.TryParse(nodeA.Value, out var numA) && Decimal.TryParse(nodeB.Value, out var numB))
{
if (Math.Round(numA, 12) != Math.Round(numB, 12))
{
throw new Exception($"[{pathA}] NodeValue (as Decimal) '{numA}' != '{numB}'");
}
}
else
{
throw new Exception($"[{pathA}] NodeValue '{nodeA.Value}' != '{nodeB.Value}'");
}
}
}
// specific node type comparisons
if (nodeA.GetType() == typeof(XmlElement))
{
//CompareXmlElements(ignorePaths, path + "elt:" + nodeA.Name, nodeA as XmlElement, nodeB as XmlElement);
}
else if (nodeA.GetType() == typeof(XmlDeclaration))
{
//CompareXmlDeclarations(ignorePaths, path + "decl:" + nodeA.Name, nodeA as XmlDeclaration, nodeB as XmlDeclaration);
}
else if (nodeA.GetType() == typeof(XmlText))
{
CompareXmlTexts(rules, pathA + "text:" + nodeA.Name, nodeA as XmlText, nodeB as XmlText);
}
else
{
throw new NotImplementedException("[" + pathA + "] NodeType: " + nodeA.GetType().Name);
}
}