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https://issues.apache.org/jira/browse/LUCENENET-409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021065#comment-13021065
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Neal Granroth commented on LUCENENET-409:
-----------------------------------------
Yes, that works.
However, when I ran some tests I found that the patch for StringToTime()
doesn't work right.
It needs to be this:
public static long StringToTime(System.String s)
{
return SupportClass.Number.Parse(s, SupportClass.Number.MAX_RADIX);
}
I don't quite understand why, as the SupportClass.Number.ToInt64() method is
very similar; but when it is used the returned time is always 1970.
Original Time: 4/18/2011 10:13:33 AM
Returned Time: 1/21/1970 4:08:42 AM
Diff Secs: -1301378690.68857
String: "0gmnjogq8"
If I use SupportClass.Number.Parse() instead I see this:
Original Time: 4/18/2011 10:16:09 AM
Returned Time: 4/18/2011 10:16:09 AM
Diff Secs: -7.03E-05
String: "0gmnjrt5d"
Here's the small test program in case you'd like to put it into a unit-test:
using System;
using System.Collections.Generic;
using System.Text;
using DateField = Lucene.Net.Documents.DateField;
using SC = System.Console;
namespace DateCheck
{
class Program
{
static void Main(string[] args)
{
DateTime dtTest1 = DateTime.Now.ToLocalTime();
string strTest = DateField.DateToString(dtTest1);
DateTime dtTest2 = DateField.StringToDate( strTest );
SC.WriteLine("Original Time: {0}",dtTest1.ToString());
SC.WriteLine("Returned Time: {0}",dtTest2.ToString());
SC.WriteLine("Diff Secs:
{0}",(dtTest2-dtTest1).TotalSeconds);
SC.WriteLine("String: \"{0}\"",strTest);
}
}
}
> Invalid Base exception in DateField.StringToTime()
> --------------------------------------------------
>
> Key: LUCENENET-409
> URL: https://issues.apache.org/jira/browse/LUCENENET-409
> Project: Lucene.Net
> Issue Type: Bug
> Components: Lucene.Net Core
> Affects Versions: Lucene.Net 2.9.4
> Reporter: Neal Granroth
> Attachments: DateField.patch
>
>
> The Lucene.Net.Documents.DateField.StringToTime() method called by
> StringToDate() appears to specify an invalid value for the base in the .NET
> Convert.ToInt64() call. When a DateField value in a legacy index is read, or
> Lucene.NET 2.9.4 is used with legacy code that relies upon DateField, the
> following exception occurs whenever StringToDate() is called:
> System.ArgumentException: Invalid Base.
> at System.Convert.ToInt64(String value, Int32 fromBase)
> at Lucene.Net.Documents.DateField.StringToTime(String s)
> at Lucene.Net.Documents.DateField.StringToDate(String s)
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