internal string Execute(ICommand command, CommandParameterCollection args, CommandSettingCollection settings, ICommandContext context)
{
if (!ParseArgs(args))
throw new CommandParameterException("Failed to parse the arguments.", command, args);
try
{
return ExecuteCommand(settings, context);
}
catch (Exception e)
{
throw new CommandException(command, e);
}
}
private bool ParseArgs(CommandParameterCollection args)
{
object arg;
if (args == null || args.Count != 2) return false;
if (!args.TryGetParameter("Message", typeof(string), true, out arg)) return false;
_message = Convert.ToString(arg);
if (!args.TryGetParameter("RepeatCount", typeof(int), false, out arg)) return false;
_repeatCount = Convert.ToInt32(arg);
return true;
}
/// <summary>
/// Method execution logic.
/// </summary>
/// <param name="args">The arguments.</param>
/// <param name="context">The context.</param>
/// <param name="settings">The settings.</param>
/// <returns></returns>
public object Execute(CommandParameterCollection args, CommandSettingCollection settings, ICommandContext context)
{
return new CommandProcessor().Execute(this, args, settings, context);
}
/// <summary>
/// Initializes a new instance of the <see cref="CommandParameterException" /> class.
/// </summary>
/// <param name="info">The <see cref="T:System.Runtime.Serialization.SerializationInfo" /> that holds the serialized object data about the exception being thrown.</param>
/// <param name="context">The <see cref="T:System.Runtime.Serialization.StreamingContext" /> that contains contextual information about the source or destination.</param>
/// <exception cref="T:System.ArgumentNullException">The <paramref name="info" /> parameter is null.</exception>
/// <exception cref="T:System.Runtime.Serialization.SerializationException">The class name is null or <see cref="P:System.Exception.HResult" /> is zero (0).</exception>
protected CommandParameterException(SerializationInfo info, StreamingContext context)
: base(info, context)
{
_parameters = (CommandParameterCollection)info.GetValue("Parameters", typeof(CommandParameterCollection));
}
/// <summary>
/// Initializes a new instance of the <see cref="CommandParameterException" /> class.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="command">The command.</param>
/// <param name="passedParameters">The passed parameters.</param>
/// <param name="inner">The inner exception.</param>
public CommandParameterException(string message, ICommand command, CommandParameterCollection passedParameters, Exception inner)
: base(message, command, inner)
{
_parameters = passedParameters;
}
/// <summary>
/// Initializes a new instance of the <see cref="CommandParameterException" /> class.
/// </summary>
/// <param name="command">The command.</param>
/// <param name="passedParameters">The passed parameters.</param>
/// <param name="inner">The inner exception.</param>
public CommandParameterException(ICommand command, CommandParameterCollection passedParameters, Exception inner)
: base(command, inner)
{
_parameters = passedParameters;
}