private bool _validateDouble(urakawa.metadata.Metadata metadata, MetadataDefinition definition)
{
try
{
double x = Convert.ToDouble(metadata.NameContentAttribute.Value);
}
catch (Exception)
{
MetadataFormatValidationError err =
new MetadataFormatValidationError(metadata, definition, m_EventAggregator);
err.Hint = m_NumericHint;
m_ParentValidator.ReportError(err);
return(false);
}
return(true);
}
private bool _validateLanguageCode(urakawa.metadata.Metadata metadata, MetadataDefinition definition)
{
string lang = metadata.NameContentAttribute.Value;
bool valid = true;
if (m_InvalidLanguageCodes.Contains(lang))
{
valid = false;
}
else
{
try
{
CultureInfo info = CultureInfo.GetCultureInfo(lang);
if (info != null)
{
return(true);
}
}
catch
{
valid = false;
if (!m_InvalidLanguageCodes.Contains(lang))
{
m_InvalidLanguageCodes.Add(lang);
}
}
}
if (valid)
{
return(true);
}
MetadataFormatValidationError err =
new MetadataFormatValidationError(metadata, definition, m_EventAggregator);
err.Hint = m_LanguageHint;
m_ParentValidator.ReportError(err);
return(false);
}
public bool Validate(urakawa.metadata.Metadata metadata, MetadataDefinition definition)
{
//neither required nor optional fields may be empty
//check both an empty string and our "magic" string value that is
//used upon creation of a new metadata item
if (!string.IsNullOrEmpty(metadata.NameContentAttribute.Value) &&
metadata.NameContentAttribute.Value != SupportedMetadata_Z39862005.MagicStringEmpty)
{
return(true);
}
else
{
MetadataFormatValidationError err =
new MetadataFormatValidationError(metadata, definition, m_EventAggregator);
err.Hint = m_NonEmptyHint;
m_ParentValidator.ReportError(err);
return(false);
}
}
private bool _validateDate(urakawa.metadata.Metadata metadata, MetadataDefinition definition)
{
MetadataFormatValidationError err =
new MetadataFormatValidationError(metadata, definition, m_EventAggregator);
err.Hint = m_DateHint;
string date = metadata.NameContentAttribute.Value;
//Require at least the year field
//The max length of the entire datestring is 10
if (date.Length < 4 || date.Length > 10)
{
m_ParentValidator.ReportError(err);
return(false);
}
string[] dateArray = date.Split('-');
//the year has to be 4 digits
if (dateArray[0].Length != 4)
{
m_ParentValidator.ReportError(err);
return(false);
}
//the year has to be digits
try
{
int year = Convert.ToInt32(dateArray[0]);
}
catch
{
m_ParentValidator.ReportError(err);
return(false);
}
//check for a month value (it's optional)
if (dateArray.Length >= 2)
{
//the month has to be numeric
int month = 0;
try
{
month = Convert.ToInt32(dateArray[1]);
}
catch
{
m_ParentValidator.ReportError(err);
return(false);
}
//the month has to be in this range
if (month < 1 || month > 12)
{
m_ParentValidator.ReportError(err);
return(false);
}
}
//check for a day value (it's optional but only if a month is specified)
if (dateArray.Length == 3)
{
//the day has to be a number
int day = 0;
try
{
day = Convert.ToInt32(dateArray[2]);
}
catch
{
m_ParentValidator.ReportError(err);
return(false);
}
//it has to be in this range
if (day < 1 || day > 31)
{
m_ParentValidator.ReportError(err);
return(false);
}
}
return(true);
}