public static void Main(string[] args)
{
Options commandLineOptions = new Options();
ICommandLineParser commandParser = new CommandLineParser();
if (commandParser.ParseArguments(args, commandLineOptions, Console.Error))
{
if (ValidateOptions(commandLineOptions))
{
try
{
TaskProcessor concatTask = new TaskProcessor();
concatTask.ProcessTask(commandLineOptions);
}
catch (Exception ex)
{
StringBuilder errorMessage = new StringBuilder();
errorMessage.AppendLine(messageUnexpectedError);
if (commandLineOptions.debugMessages)
{
errorMessage.AppendFormat(messageUnhandledException, ex.ToString(), ex.Message, ex.StackTrace);
}
System.Console.Error.WriteLine(errorMessage.ToString());
Environment.ExitCode = 1;
}
}
}
else
{
// Command line params could not be parsed,
// or help was requested
Environment.ExitCode = -1;
}
}
public void ProcessTask(Options commandLineOptions)
{
var splitTools = new CoreTools();
try
{
splitTools.EvenOddMerge(commandLineOptions.Items[0],
commandLineOptions.Items[1],
commandLineOptions.Items[2],
commandLineOptions.skipExtraPages);
}
catch (UnauthorizedAccessException)
{
System.Console.Error.WriteLine(Environment.NewLine + "Access denied.");
}
catch (System.IO.FileNotFoundException)
{
System.Console.Error.WriteLine(Environment.NewLine + "File not found.");
}
catch (System.IO.DirectoryNotFoundException)
{
System.Console.Error.WriteLine(Environment.NewLine + "Directory not found.");
}
catch (IOException ioException)
{
// PDF file is not valid, or was not found
if (ioException.Message.Contains("PDF"))
{
System.Console.Error.WriteLine(Environment.NewLine + "Input file is not a valid PDF.");
}
else if (ioException.Message.Contains("not found as file or resource"))
{
System.Console.Error.WriteLine(Environment.NewLine + ioException.Message);
}
else
{
// Some other IOException we weren't expecting
throw;
}
}
}
private static bool ValidateOptions(Options commandLineOptions)
{
bool validatedOK = false;
StringBuilder errorMessage = new StringBuilder();
if (commandLineOptions.Items.Count == 3)
{
// Make sure the input files are actually readable
for (int loop = 0; loop < commandLineOptions.Items.Count - 1; loop++)
{
try
{
using (FileStream inputFile = new FileStream(commandLineOptions.Items[loop], FileMode.Open, FileAccess.Read))
{
inputFile.Close();
}
}
catch
{
errorMessage.AppendLine(String.Format(messageFileNotFound, commandLineOptions.Items[loop]));
}
}
// Make sure we can actually write the desired output file
try
{
using (FileStream outputFile = new FileStream(commandLineOptions.Items[commandLineOptions.Items.Count - 1], FileMode.Create, FileAccess.ReadWrite))
{
outputFile.Close();
}
}
catch
{
errorMessage.AppendLine(String.Format(messageCouldNotCreateFile, commandLineOptions.Items[commandLineOptions.Items.Count - 1]));
}
finally
{
try
{
File.Delete(commandLineOptions.Items[commandLineOptions.Items.Count - 1]);
}
catch { }
}
if (String.IsNullOrEmpty(errorMessage.ToString())) validatedOK = true;
}
else
{
switch (commandLineOptions.Items.Count)
{
case 2:
// No output file specified
errorMessage.AppendLine(messageNoOutputFileSpecifed);
break;
case 1:
default:
errorMessage.AppendLine(messageInsufficientInputFiles);
break;
}
}
if (!validatedOK) System.Console.Error.Write(errorMessage.ToString());
return validatedOK;
}