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 pdfTools = new CoreTools();
List<String> inputFiles = new List<string>(commandLineOptions.Items);
String outputFile = inputFiles[inputFiles.Count - 1];
inputFiles.RemoveAt(inputFiles.Count - 1);
try
{
pdfTools.ConcatenatePDFFiles(inputFiles.ToArray(), outputFile);
}
catch (UnauthorizedAccessException)
{
System.Console.Error.WriteLine("Access denied.");
}
catch (System.IO.FileNotFoundException)
{
System.Console.Error.WriteLine("File not found.");
}
catch (System.IO.DirectoryNotFoundException)
{
System.Console.Error.WriteLine("Directory not found.");
}
}
private static bool ValidateOptions(Options commandLineOptions)
{
bool validatedOK = false;
StringBuilder errorMessage = new StringBuilder();
if (commandLineOptions.Items.Count > 2)
{
// 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
{
// Only one (or no) file(s) specified
switch (commandLineOptions.Items.Count)
{
case 2:
errorMessage.AppendLine(messageInsufficientInputFiles);
break;
case 1:
errorMessage.AppendLine(messageNoInputFileSpecifed);
break;
default:
errorMessage.AppendLine(messageNoFilesSpecified);
break;
}
}
if (!validatedOK) System.Console.Error.Write(errorMessage.ToString());
return validatedOK;
}