| public static ConvertMetadataValueToString ( object metadataValue ) : string | ||
| metadataValue | object | Value to convert |
| Результат | string | |
/// <summary>
/// Returns all key/value pairs in a metadata object as a single string
/// </summary>
/// <param name="metadata">Collection of metadata items</param>
/// <param name="isStreamMetadata">True for stream-level metadata; false for file-level metadata</param>
/// <returns>A string which contains all key/value pairs in the metadata object</returns>
private string GetMetadataAsText(IEnumerable <KeyValuePair <string, object> > metadata, bool isStreamMetadata)
{
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
StringBuilder metadataString = new StringBuilder();
foreach (KeyValuePair <string, object> pair in metadata)
{
metadataString.Append(Environment.NewLine);
if (isStreamMetadata)
{
metadataString.Append("\t");
}
else
{
metadataString.Append(" ");
}
metadataString.Append(pair.Key);
metadataString.Append(" = ");
metadataString.Append(Metadata.ConvertMetadataValueToString(pair.Value));
}
return(metadataString.ToString());
}
/// <summary>
/// Compares two metadata collections together
/// </summary>
/// <param name="leftMetadata">Metadata list from the first file to use in comparison</param>
/// <param name="rightMetadata">Metadata list from the second file to use in comparison</param>
/// <param name="same">True if the metadata keys and values were identical between both files, false otherwise</param>
/// <returns>A list which contains the combined metadata from both files used in comparison</returns>
internal static ObservableCollection <CompareData> CompareMetadata(IEnumerable <KeyValuePair <string, object> > leftMetadata, IEnumerable <KeyValuePair <string, object> > rightMetadata, out bool same)
{
ObservableCollection <CompareData> compareMetadata = new ObservableCollection <CompareData>();
same = true;
// populate the comparison list with all key/value pairs found in the leftMetadata list
if (leftMetadata != null)
{
foreach (KeyValuePair <string, object> pair in leftMetadata)
{
string key = pair.Key;
string leftValue = Metadata.ConvertMetadataValueToString(pair.Value);
string rightValue = " ";
compareMetadata.Add(new CompareData(key, leftValue, rightValue));
}
}
// populate the comparison list with any new values found in the rightMetadata list
if (rightMetadata != null)
{
foreach (KeyValuePair <string, object> pair in rightMetadata)
{
bool found = false;
for (int i = 0; i < compareMetadata.Count; i++)
{
if (compareMetadata[i].Key == pair.Key)
{
// update existing CompareData object
compareMetadata[i].RightValue = Metadata.ConvertMetadataValueToString(pair.Value);
compareMetadata[i].Same = compareMetadata[i].LeftValue.Equals(compareMetadata[i].RightValue);
found = true;
break;
}
}
if (!found)
{
// add new CompareData object
string key = pair.Key;
string leftValue = " ";
string rightValue = Metadata.ConvertMetadataValueToString(pair.Value);
compareMetadata.Add(new CompareData(key, leftValue, rightValue));
}
}
}
foreach (CompareData data in compareMetadata)
{
if (!data.Same)
{
same = false;
break;
}
}
return(compareMetadata);
}
/// <summary>
/// Converts a metadata value to a string for display in the UI
/// </summary>
/// <param name="value">The item to convert</param>
/// <param name="targetType">targetType is not used</param>
/// <param name="parameter">parameter is not used</param>
/// <param name="culture">culture is not used</param>
/// <returns>A string representing the value provided</returns>
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
return(Metadata.ConvertMetadataValueToString(value));
}
/// <summary>
/// Returns all key/value pairs in a metadata object as a single string
/// </summary>
/// <param name="metadata">Collection of metadata items</param>
/// <param name="type">Public or PersonallyIdentifiableInformation</param>
/// <param name="streamName">Name of stream which metadata belongs to, empty if file-level metadata</param>
/// <returns>A string which contains all key/value pairs in the metadata object</returns>
private static string GetMetadataAsText(KStudioMetadata metadata, KStudioMetadataType type, string streamName)
{
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
StringBuilder metadataString = new StringBuilder();
metadataString.Append(Environment.NewLine);
if (string.IsNullOrEmpty(streamName))
{
metadataString.Append(Strings.File);
}
else
{
metadataString.Append(streamName);
}
metadataString.Append(" ");
if (type == KStudioMetadataType.Public)
{
metadataString.Append(string.Format(Strings.PublicMetadataHeader, metadata.Count));
}
else
{
metadataString.Append(string.Format(Strings.PersonalMetadataHeader, metadata.Count));
}
foreach (KeyValuePair <string, object> pair in metadata)
{
metadataString.Append(Environment.NewLine);
metadataString.Append(" ");
metadataString.Append(pair.Key);
metadataString.Append(" = ");
metadataString.Append(Metadata.ConvertMetadataValueToString(pair.Value));
}
metadataString.Append(Environment.NewLine);
return(metadataString.ToString());
}