/// <exception cref="System.IO.IOException"/>
/// <exception cref="Com.Drew.Imaging.Jpeg.JpegProcessingException"/>
public static void Main(string[] args)
{
if (args.Length == 0)
{
System.Console.Error.Println("Expects one or more directories as arguments.");
System.Environment.Exit(1);
}
IList <string> directories = new AList <string>();
ProcessAllImagesInFolderUtility.FileHandler handler = null;
foreach (string arg in args)
{
if (Sharpen.Runtime.EqualsIgnoreCase(arg, "-text"))
{
// If "-text" is specified, write the discovered metadata into a sub-folder relative to the image
handler = new ProcessAllImagesInFolderUtility.TextFileOutputHandler();
}
else
{
if (Sharpen.Runtime.EqualsIgnoreCase(arg, "-markdown"))
{
// If "-markdown" is specified, write a summary table in markdown format to standard out
handler = new ProcessAllImagesInFolderUtility.MarkdownTableOutputHandler();
}
else
{
if (Sharpen.Runtime.EqualsIgnoreCase(arg, "-unknown"))
{
// If "-unknown" is specified, write CSV tallying unknown tag counts
handler = new ProcessAllImagesInFolderUtility.UnknownTagHandler();
}
else
{
// Treat this argument as a directory
directories.Add(arg);
}
}
}
}
if (handler == null)
{
handler = new ProcessAllImagesInFolderUtility.BasicFileHandler();
}
long start = Runtime.NanoTime();
// Order alphabetically so that output is stable across invocations
directories.Sort();
foreach (string directory in directories)
{
ProcessDirectory(new FilePath(directory), handler, string.Empty);
}
handler.OnCompleted();
System.Console.Out.Println(Sharpen.Extensions.StringFormat("Completed in %d ms", (Runtime.NanoTime() - start) / 1000000));
}
private static void ProcessDirectory(FilePath path, ProcessAllImagesInFolderUtility.FileHandler handler)
{
string[] pathItems = path.List();
if (pathItems == null)
{
return;
}
// Order alphabetically so that output is stable across invocations
Arrays.Sort(pathItems);
foreach (string pathItem in pathItems)
{
FilePath file = new FilePath(path, pathItem);
if (file.IsDirectory())
{
ProcessDirectory(file, handler);
}
else
{
if (handler.ShouldProcess(file))
{
handler.OnProcessingStarting(file);
// Read metadata
Com.Drew.Metadata.Metadata metadata;
try
{
metadata = ImageMetadataReader.ReadMetadata(file);
}
catch (Exception t)
{
handler.OnException(file, t);
continue;
}
handler.OnExtracted(file, metadata);
}
}
}
}