/// <summary>
/// Uses reflection to loop through the BatchDescription and JobDescriptions and update
/// any property with a RelativePath attribute so that they start with the path from
/// the current execution directory to the configuration directory.
/// </summary>
private static void SetPathsRelativeToConfigFile(string configFile, BatchDescription <J> batch)
{
var configPath = Path.GetDirectoryName(configFile);
var batchType = batch.GetType();
var batchMembers = batchType.GetMembers(BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty);
foreach (var member in batchMembers)
{
var attributes = member.GetCustomAttributes(typeof(RelativePathAttribute), false);
if (attributes.Length > 0)
{
var prop = batchType.GetProperty(member.Name, BindingFlags.Public | BindingFlags.Instance);
if (prop != null && prop.CanWrite)
{
var value = (string)prop.GetValue(batch);
if (!string.IsNullOrEmpty(value))
{
prop.SetValue(batch, Path.Combine(configPath, value), null);
}
}
}
}
foreach (var job in batch.Jobs)
{
var jobType = job.GetType();
var jobMembers = jobType.GetMembers(BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty);
foreach (var member in jobMembers)
{
var attributes = member.GetCustomAttributes(typeof(RelativePathAttribute), false);
if (attributes.Length > 0)
{
var prop = jobType.GetProperty(member.Name, BindingFlags.Public | BindingFlags.Instance);
if (prop != null && prop.CanWrite)
{
var value = prop.GetValue(job);
if (value is string)
{
prop.SetValue(job, Path.Combine(configPath, (string)value), null);
}
else if (value is string[])
{
var paths = (string[])value;
for (int i = 0; i < paths.Length; i++)
{
paths[i] = Path.Combine(configPath, paths[i]);
}
prop.SetValue(job, paths, null);
}
}
}
}
}
}
/// <summary>
/// Process command line arguments, deserialize job configuration data, instantiate the
/// PowerTool, and process each job.
/// </summary>
public override ExitCode Run(string[] args)
{
var toolDescription = (PowerToolAttribute)Attribute.GetCustomAttribute(typeof(T), typeof(PowerToolAttribute));
var result = ExitCode.Success;
string configFile = null;
bool showHelp = false;
bool isVerbose = false;
var options = new OptionSet()
.Add("v|verbose", "All logging will be written to the console.", v => isVerbose = v != null)
.Add("h|?|help", "Prints this help message.", v => showHelp = v != null)
.Add("config=", "{PATH} to JSON configuration file.", v => configFile = v);
try
{
var extra = options.Parse(args);
}
catch
{
Console.WriteLine("Error parsing options.");
result = ExitCode.UnexpectedOptions;
}
if (result != ExitCode.Success)
{
// No-op
}
else if (showHelp || string.IsNullOrEmpty(configFile))
{
// Print help
Console.WriteLine("{0}: {1}", toolDescription.Name, toolDescription.Description);
Console.WriteLine("How to operate:");
options.WriteOptionDescriptions(Console.Out);
}
else if (!File.Exists(configFile))
{
// No configuration file
this.Error("Configuration file not found.");
result = ExitCode.ConfigurationFileNotFound;
}
else
{
PowerToolConsoleProgram <T, J> .ConfigureVerbosity(isVerbose);
// A batch contains common high level information for a PowerTool as well as a list of jobs.
BatchDescription <J> batch = null;
try
{
batch = JsonConvert.DeserializeObject <BatchDescription <J> >(File.ReadAllText(configFile));
}
catch (Exception e) when(e is JsonSerializationException || e is JsonReaderException)
{
this.Info("Failed to parse JSON: {0}", e.Message);
this.Error("Configuration file could not be parsed.");
result = ExitCode.BadConfiguration;
}
if (result == ExitCode.Success)
{
PowerToolConsoleProgram <T, J> .SetPathsRelativeToConfigFile(configFile, batch);
PowerToolConsoleProgram <T, J> .ConfigureLoggingToFile(batch.LogFilePath);
var logger = new NLogAdapter(PowerToolConsoleProgram <T, J> .logger);
if (string.IsNullOrEmpty(batch.OutputFolderPath))
{
this.Error("No output directory specified.");
result = ExitCode.BadConfiguration;
}
else
{
if (!Directory.Exists(batch.OutputFolderPath))
{
this.Info("Creating output directory: {0}", batch.OutputFolderPath);
Directory.CreateDirectory(batch.OutputFolderPath);
}
if (batch.Jobs == null)
{
this.Warn("No jobs defined.");
}
else
{
var worker = new T();
worker.Setup(batch, logger);
this.Info("Starting {0} jobs", batch.Jobs.Length);
var processedJobs = new HashSet <string>();
int i = 0;
foreach (var job in batch.Jobs)
{
if (processedJobs.Contains(job.Name))
{
this.Warn("Duplicate job name: {0}. Skipping job.", job.Name);
continue;
}
if (result != ExitCode.Success)
{
break;
}
result = worker.Process(job);
processedJobs.Add(job.Name);
i++;
this.Info("Finished job {0} of {1}", i, batch.Jobs.Length);
}
}
}
}
}
Console.WriteLine(
"Finished running tool: {0}. Exited with code: {1:N0} {2}",
toolDescription.Name,
(int)result,
PowerToolConsoleProgram <T, J> .GetExitCodeDescription(result));
return(result);
}
internal void Setup(BatchDescription <T> batch, ILogAdapter logger)
{
this.batch = batch;
this.logger = logger;
}