/// <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());
}
/// <summary>
/// Edits file or stream-level metadata
/// </summary>
/// <param name="filePath">Path of file which contains metadata to edit</param>
/// <param name="key">Key of metadata item to alter</param>
/// <param name="value">New value to set for the metadata item</param>
/// <param name="streamName">String which represents the stream to alter metadata for</param>
/// <param name="updatePersonalMetadata">Value which indicates if personal metadata should be altered (default is public)</param>
/// <param name="updateStreamMetadata">Value which indicates if stream metadata should be altered (default is file)</param>
/// <returns>String containing updated contents of the target metadata object</returns>
private string EditMetadata(string filePath, string key, object value, string streamName, bool updatePersonalMetadata, bool updateStreamMetadata)
{
if (string.IsNullOrEmpty(filePath))
{
throw new ArgumentNullException("filePath");
}
if (string.IsNullOrEmpty(key))
{
throw new ArgumentNullException("key");
}
string metadataText = string.Empty;
using (KStudioClient client = KStudio.CreateClient())
{
if (filePath.ToUpperInvariant().StartsWith(Strings.ConsoleClipRepository.ToUpperInvariant()))
{
client.ConnectToService();
}
KStudioMetadataType type = KStudioMetadataType.Public;
if (updatePersonalMetadata)
{
type = KStudioMetadataType.PersonallyIdentifiableInformation;
}
if (updateStreamMetadata)
{
metadataText = Metadata.UpdateStreamMetadata(client, filePath, streamName, type, key, value);
}
else
{
metadataText = Metadata.UpdateFileMetadata(client, filePath, type, key, value);
}
}
return(metadataText);
}
/// <summary>
/// Updates (adds/edits) file-level metadata in an event file
/// </summary>
/// <param name="client">KStudioClient to use for accessing the event file</param>
/// <param name="fileName">Path to event file</param>
/// <param name="type">Type of metadata (Public or Personal)</param>
/// <param name="key">Key of metadata object to add/edit</param>
/// <param name="value">Value of metadata object to add/edit</param>
/// <returns>String which contains the updated contents of the target metadata object</returns>
public static string UpdateFileMetadata(KStudioClient client, string fileName, KStudioMetadataType type, string key, object value)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException("fileName");
}
string metadataText = string.Empty;
using (KStudioEventFile file = client.OpenEventFileForEdit(fileName))
{
KStudioMetadata metadata = file.GetMetadata(type);
Metadata.AlterMetadata(metadata, key, value);
metadataText = Metadata.GetMetadataAsText(metadata, type, string.Empty);
}
return metadataText;
}
/// <summary>
/// Updates (add/edits) stream-level metadata in an event file
/// </summary>
/// <param name="client">KStudioClient to use for accessing the event file</param>
/// <param name="fileName">Path to event file</param>
/// <param name="streamName">Name of stream which should contain the metadata</param>
/// <param name="type">Type of metadata to update (Public or Personal)</param>
/// <param name="key">Key of metadata object to add/edit</param>
/// <param name="value">Value of metadata object to add/edit</param>
/// <returns>String which contains the updated contents of the target metadata object</returns>
public static string UpdateStreamMetadata(KStudioClient client, string fileName, string streamName, KStudioMetadataType type, string key, object value)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException("fileName");
}
if (string.IsNullOrEmpty(streamName))
{
throw new ArgumentNullException("streamName");
}
string metadataText = string.Empty;
using (KStudioEventFile file = client.OpenEventFileForEdit(fileName))
{
// find the stream in the file and alter its metadata
Guid dataTypeId = StreamSupport.ConvertStreamStringToGuid(streamName);
if (dataTypeId == KStudioEventStreamDataTypeIds.Null)
{
throw new InvalidOperationException(Strings.ErrorNullStream);
}
KStudioEventStream stream = file.EventStreams.FirstOrDefault(s => s.DataTypeId == dataTypeId);
if (stream != null)
{
KStudioMetadata metadata = stream.GetMetadata(type);
Metadata.AlterMetadata(metadata, key, value);
metadataText = Metadata.GetMetadataAsText(metadata, type, stream.DataTypeName);
}
}
return(metadataText);
}
/// <summary>
/// Updates (adds/edits) file-level metadata in an event file
/// </summary>
/// <param name="client">KStudioClient to use for accessing the event file</param>
/// <param name="fileName">Path to event file</param>
/// <param name="type">Type of metadata (Public or Personal)</param>
/// <param name="key">Key of metadata object to add/edit</param>
/// <param name="value">Value of metadata object to add/edit</param>
/// <returns>String which contains the updated contents of the target metadata object</returns>
public static string UpdateFileMetadata(KStudioClient client, string fileName, KStudioMetadataType type, string key, object value)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException("fileName");
}
string metadataText = string.Empty;
using (KStudioEventFile file = client.OpenEventFileForEdit(fileName))
{
KStudioMetadata metadata = file.GetMetadata(type);
Metadata.AlterMetadata(metadata, key, value);
metadataText = Metadata.GetMetadataAsText(metadata, type, string.Empty);
}
return(metadataText);
}
/// <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();
}
/// <summary>
/// Updates (add/edits) stream-level metadata in an event file
/// </summary>
/// <param name="client">KStudioClient to use for accessing the event file</param>
/// <param name="fileName">Path to event file</param>
/// <param name="streamName">Name of stream which should contain the metadata</param>
/// <param name="type">Type of metadata to update (Public or Personal)</param>
/// <param name="key">Key of metadata object to add/edit</param>
/// <param name="value">Value of metadata object to add/edit</param>
/// <returns>String which contains the updated contents of the target metadata object</returns>
public static string UpdateStreamMetadata(KStudioClient client, string fileName, string streamName, KStudioMetadataType type, string key, object value)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException("fileName");
}
if (string.IsNullOrEmpty(streamName))
{
throw new ArgumentNullException("streamName");
}
string metadataText = string.Empty;
using (KStudioEventFile file = client.OpenEventFileForEdit(fileName))
{
// find the stream in the file and alter its metadata
Guid dataTypeId = StreamSupport.ConvertStreamStringToGuid(streamName);
if (dataTypeId == KStudioEventStreamDataTypeIds.Null)
{
throw new InvalidOperationException(Strings.ErrorNullStream);
}
KStudioEventStream stream = file.EventStreams.FirstOrDefault(s => s.DataTypeId == dataTypeId);
if (stream != null)
{
KStudioMetadata metadata = stream.GetMetadata(type);
Metadata.AlterMetadata(metadata, key, value);
metadataText = Metadata.GetMetadataAsText(metadata, type, stream.DataTypeName);
}
}
return metadataText;
}
