/// <summary>
/// Create an instance of a DSMCC message.
/// </summary>
/// <param name="dsmccHeader">The header of the message.</param>
/// <param name="byteData">The MPEG2 data block that contains the message.</param>
/// <returns>An instance of the appropriate DSMCC message class.</returns>
public static DSMCCMessage CreateInstance(DSMCCHeader dsmccHeader, byte[] byteData)
{
DSMCCMessage dsmccMessage;
switch (dsmccHeader.MessageID)
{
case DSMCCDownloadDataBlock.MessageIDDownloadDataBlock:
dsmccMessage = new DSMCCDownloadDataBlock(dsmccHeader);
break;
case DSMCCDownloadInfoIndication.MessageIDDownloadInfoIndication:
dsmccMessage = new DSMCCDownloadInfoIndication(dsmccHeader);
break;
case DSMCCDownloadServerInitiate.MessageIDDownloadServerInitiate:
dsmccMessage = new DSMCCDownloadServerInitiate(dsmccHeader);
break;
case DSMCCDownloadCancel.MessageIDDownloadCancel:
dsmccMessage = new DSMCCDownloadCancel(dsmccHeader);
break;
default:
throw (new ArgumentException("The DSMCC message ID is out of range"));
}
dsmccMessage.Process(byteData, dsmccHeader.Index);
return(dsmccMessage);
}
/// <summary>
/// Add a download data block to the module.
/// </summary>
/// <param name="newBlock">The block to be added.</param>
/// <returns>True if the block has been added; false otherwise.</returns>
public bool AddBlock(DSMCCDownloadDataBlock newBlock)
{
foreach (DSMCCDownloadDataBlock oldBlock in blocks)
{
if (oldBlock.BlockNumber == newBlock.BlockNumber)
{
return(false);
}
if (oldBlock.BlockNumber > newBlock.BlockNumber)
{
blocks.Insert(blocks.IndexOf(oldBlock), newBlock);
try
{
complete = checkComplete();
return(true);
}
catch (InvalidOperationException)
{
blocks.Clear();
return(false);
}
}
}
blocks.Add(newBlock);
try
{
complete = checkComplete();
return(true);
}
catch (InvalidOperationException)
{
blocks.Clear();
return(false);
}
}
/// <summary>
/// Add a download data block to the module.
/// </summary>
/// <param name="newBlock">The block to be added.</param>
/// <returns>True if the block has been added; false otherwise.</returns>
public bool AddBlock(DSMCCDownloadDataBlock newBlock)
{
foreach (DSMCCDownloadDataBlock oldBlock in blocks)
{
if (oldBlock.BlockNumber == newBlock.BlockNumber)
return (false);
if (oldBlock.BlockNumber > newBlock.BlockNumber)
{
blocks.Insert(blocks.IndexOf(oldBlock), newBlock);
try
{
complete = checkComplete();
return (true);
}
catch (InvalidOperationException)
{
blocks.Clear();
return (false);
}
}
}
blocks.Add(newBlock);
try
{
complete = checkComplete();
return (true);
}
catch (InvalidOperationException)
{
blocks.Clear();
return (false);
}
}
/// <summary>
/// Create an instance of a DSMCC message.
/// </summary>
/// <param name="dsmccHeader">The header of the message.</param>
/// <param name="byteData">The MPEG2 data block that contains the message.</param>
/// <returns>An instance of the appropriate DSMCC message class.</returns>
public static DSMCCMessage CreateInstance(DSMCCHeader dsmccHeader, byte[] byteData)
{
DSMCCMessage dsmccMessage;
switch (dsmccHeader.MessageID)
{
case DSMCCDownloadDataBlock.MessageIDDownloadDataBlock:
dsmccMessage = new DSMCCDownloadDataBlock(dsmccHeader);
break;
case DSMCCDownloadInfoIndication.MessageIDDownloadInfoIndication:
dsmccMessage = new DSMCCDownloadInfoIndication(dsmccHeader);
break;
case DSMCCDownloadServerInitiate.MessageIDDownloadServerInitiate:
dsmccMessage = new DSMCCDownloadServerInitiate(dsmccHeader);
break;
case DSMCCDownloadCancel.MessageIDDownloadCancel:
dsmccMessage = new DSMCCDownloadCancel(dsmccHeader);
break;
default:
throw (new ArgumentException("The DSMCC message ID is out of range"));
}
dsmccMessage.Process(byteData, dsmccHeader.Index);
return (dsmccMessage);
}
private bool addDDBMessage(DSMCCDownloadDataBlock downloadDataBlock)
{
downloadDataBlock.LogMessage();
foreach (DSMCCModule module in modules)
{
if (module.ModuleID == downloadDataBlock.ModuleID && module.Version == downloadDataBlock.ModuleVersion)
return (module.AddBlock(downloadDataBlock));
}
return (false);
}
