private List<CompareResult> CompareRow(DataRow rowOld, DataRow rowNew)
{
var compareResults = new List<CompareResult>();
for (int i = 0; i < rowNew.Table.Columns.Count; i++)
{
string cellNew = !Convert.IsDBNull(rowNew[i]) ? rowNew[i].ToString() : string.Empty;
string cellOld = !Convert.IsDBNull(rowOld[i]) ? rowOld[i].ToString() : string.Empty;
bool equal = CompareCell(cellOld, cellNew);
if (!equal)
{
var compareResult = new CompareResult
{
AreEqual = false,
Id = (string)rowNew[_unqiueColumn],
ResultsNew = cellNew,
ResultsOld = cellOld,
ColumnNumber = i + 1
};
compareResults.Add(compareResult);
}
}
return compareResults;
}
public static CompareResult And(CompareResult a, CompareResult b)
{
if(a==b)
{
return a;
}
if(a==CompareResult.Equal)
{
return b;
}
if(b==CompareResult.Equal)
{
return a;
}
return CompareResult.Unequal;
}
public static bool AllCompare(float[] lhs, float[] rhs, CompareOption comparison, out CompareResult compareResult)
{
compareResult = CompareResult.Equal;
if (ReferenceEquals(lhs, null) || ReferenceEquals(rhs, null)) return false;
if (lhs.Length != rhs.Length) return false;
bool allowLessThan = (comparison & CompareOption.LessThan) == CompareOption.LessThan;
bool allowEqual = (comparison & CompareOption.Equal) == CompareOption.Equal;
bool allowGreaterThan = (comparison & CompareOption.GreaterThan) == CompareOption.GreaterThan;
if (allowEqual && ReferenceEquals(lhs, rhs)) return true;
bool haveGreaterThan = false, haveLessThan = false;
for (int i = 0; i < lhs.Length; i++)
{
int val = lhs[i].CompareTo(rhs[i]);
if (val < 0)
{
haveLessThan = true;
if (!allowLessThan) return false;
if (haveGreaterThan)
{
compareResult = CompareResult.Unequal;
return allowGreaterThan || allowLessThan || allowEqual;
}
}
else if (val > 0)
{
haveGreaterThan = true;
if (!allowGreaterThan) return false;
if (haveLessThan)
{
compareResult = CompareResult.Unequal;
return allowGreaterThan || allowLessThan || allowEqual;
}
}
}
if (haveGreaterThan && haveLessThan) compareResult = CompareResult.Unequal;
else if (haveGreaterThan) compareResult = CompareResult.GreaterThan;
else if (haveLessThan) compareResult = CompareResult.LessThan;
else compareResult = CompareResult.Equal;
return (allowGreaterThan && haveGreaterThan) ||
(allowLessThan && haveLessThan) || allowEqual;
}
static void ShowCompareResult(CompareResult compareResult)
{
Console.WriteLine();
Console.WriteLine(compareResult.IsEqual);
Console.WriteLine("=======================================================");
Console.WriteLine("DifferentPropertyList：");
compareResult.DifferentPropertyList.ForEach(p =>
{
Console.WriteLine("ObjectAPropertyName = {0}, ObjectBPropertyName = {1}, ValueA = {2}, ValueB = {3}", p.ObjectAPropertyName, p.ObjectBPropertyName, p.ObjectAValue, p.ObjectBValue);
});
Console.WriteLine("=======================================================");
Console.WriteLine("SamePropertyList：");
compareResult.SamePropertyList.ForEach(p =>
{
Console.WriteLine("ObjectAPropertyName = {0}, ObjectBPropertyName = {1}, ValueA = {2}, ValueB = {3}", p.ObjectAPropertyName, p.ObjectBPropertyName, p.ObjectAValue, p.ObjectBValue);
});
Console.WriteLine("Exception:{0}", compareResult.Exception);
}
//Transform numeric result into string description
public String GetResult(CompareResult result)
{
String retVal = null;
for (int i = 0; i < 8; i++)
{
if (((int)result & (0x01 << i)) == (0x01 << i))
{
if (retVal == null)
{
retVal = "{" + ((CompareResult)(0x01 << i)).ToString();
}
else
{
retVal = retVal + "," + ((CompareResult)(0x01 << i)).ToString();
}
}
}
if (retVal == null)
{
retVal = "{Equal}";
}
else
{
retVal = retVal + "}";
}
return retVal;
}
private void WriteSummaryResultLine(StreamWriter html, CompareResult result, string diffName)
{
var format = @"<tr class=""summary-table-row"">
<td><a href=""{6}"">{0}</a></td>
<td class=""right"">{1:n2}</td>
<td><a href=""{7}"">{2}</a></td>
<td class=""right"">{3:n2}</td>
<td class=""right"">{4}</td>
<td class=""right"">{5}</td>
<td class=""right"">{8:n2}</td>
<td><a href=""{9}"">Diff</a></td>
</tr>";
if (result.SimilarityA >= result.SimilarityB)
{
html.WriteLine(format,
result.A.FilePath.MaxLength(17, "...", true),
100.0 * result.SimilarityA,
result.B.FilePath.MaxLength(17, "...", true),
100.0 * result.SimilarityB,
result.MatchCount,
result.TokenCount,
result.A.FilePath,
result.B.FilePath,
(double)result.TokenCount / (double)result.MatchCount,
diffName);
}
else
{
// This is a little lie, as it does not match the table headers.
// But to the user the lables A and B are not important
html.WriteLine(format,
result.B.FilePath.MaxLength(17, "...", true),
100.0 * result.SimilarityB,
result.A.FilePath.MaxLength(17, "...", true),
100.0 * result.SimilarityA,
result.MatchCount,
result.TokenCount,
result.B.FilePath,
result.A.FilePath,
(double)result.TokenCount / (double)result.MatchCount,
diffName);
}
}
private void WriteDetailB(CompareResult result, StreamWriter html)
{
html.WriteLine("<div class=\"detail-col\">");
html.WriteLine("<h2>{0}</h2>", Path.GetFileName(result.B.FilePath));
html.WriteLine("<div class=\"detail-submission-summary\"><a href=\"{0}\">{0}</a><br/>Similarity: {1:n2} %<br/>Token: {2}</div>",
result.B.FilePath,
result.SimilarityB * 100.0,
result.B.Tokens.Length);
html.WriteLine("<div class=\"detail-code\">");
using (var rd = new StreamReader(result.B.FilePath))
{
ColorDiff(html, result, rd, m => m.TokensB);
}
html.WriteLine("</div></div>");
}
private void WriteDetail(CompareResult result, string diffName)
{
using (var html = new StreamWriter(Path.Combine(OutPath, diffName)))
{
WriteHeader(html, diffName, "../", new TupleList<string, string>() { { "index.html", "Results" }, { "friendfinder.html", "Friend Finder" } });
html.WriteLine("<h1>Details</h2>");
html.WriteLine("<p id=\"detail-summary\">Matches: {0}<br/>Common token: {1}<br/>Token / match: {2:n2}</p>",
result.MatchCount,
result.TokenCount,
(double)result.TokenCount / (double)result.MatchCount);
if (result.SimilarityA >= result.SimilarityB)
{
WriteDetailA(result, html);
WriteDetailB(result, html);
}
else
{
WriteDetailB(result, html);
WriteDetailA(result, html);
}
WriteFooter(html);
html.Flush();
}
}
private void ColorDiff(StreamWriter diffHtml, CompareResult result, StreamReader rd, Func<Match, LinkedList<Token>> tokenExtractor)
{
var content = rd.ReadToEnd();
int idx = 0;
var currentMatch = result.Matches.OrderBy(m => tokenExtractor(m).First.Value.Start).ToList().GetEnumerator();
currentMatch.MoveNext();
while (idx < content.Length)
{
int start = currentMatch.Current != null ? tokenExtractor(currentMatch.Current).First.Value.Start : content.Length;
if (start > idx)
{
// not in match
diffHtml.Write(System.Web.HttpUtility.HtmlEncode(content.Substring(idx, start - idx)));
idx = start;
}
else
{
int end = tokenExtractor(currentMatch.Current).Last.Value.End;
// in match
diffHtml.Write("<span class=\"highlight color-{0}\">", Colors[currentMatch.Current.Index % Colors.Length]);
diffHtml.Write(System.Web.HttpUtility.HtmlEncode(content.Substring(idx, end - idx)));
diffHtml.Write("</span>");
currentMatch.MoveNext();
idx = end;
}
}
}
private static string GetDetailFileName(CompareResult result)
{
return string.Format("Matches/Match_{0:00000}.html", result.Index + 1);
}
public CompareOp(CompareResult compareResult)
{
_compareResult = compareResult;
}
private static CompareResult NegateCompareResult(CompareResult result)
{
switch (result)
{
case CompareResult.Less:
return CompareResult.Greater;
case CompareResult.Greater:
return CompareResult.Less;
}
return result;
}
private static string CompareResultToString(CompareResult result, string less, string greater, string equals)
{
switch (result)
{
case CompareResult.Less:
return less;
case CompareResult.Greater:
return greater;
case CompareResult.Equal:
return equals;
}
return "?";
}