/**
* @constructor
* @param configuration - Contains configuration data for this applications.
* @param inputShim - Provides input data to this application.
* @param outputShims - A list of the various objects that will consume the outputs from this processor.
* @param databaseCache - Able to load cached database data off disk.
*/
public DataProcessor(Configuration.Configuration configuration, InputShim.IInputShim inputShim, List <OutputShim.IOutputShim> outputShims, Data.DatabaseCache databaseCache)
{
// Cache inputs.
_configuration = configuration;
_inputShim = inputShim;
_outputShims = outputShims;
_databaseCache = databaseCache;
}
/**
* @CLI arguments:
*
* -v or --version : Display version and exit
* -u or --usage : Display usage string and exit
* -h or --help : Display help text and exit
* -t : Run application in test mode (do not connect to a live database)
* -i : If this is specified, any caches of databases will be invalidated.
*/
static void Main(string[] args)
{
// Show help string
if (args.Length > 0 && (args[0].Equals("-h") || args[0].Equals("--help")))
{
// Write app name and version string
Console.WriteLine("\n" + AppName + " " + Version.VersionString);
// Write command line parameters.
Console.WriteLine("Command line parameters:\n");
Console.WriteLine("-v or --version : Display version and exit");
Console.WriteLine("-u or --usage : Display usage string and exit");
Console.WriteLine("-h or --help : Display this help text and exit");
Console.WriteLine("-t : Run the application in test mode (do not connect to a database)");
Console.WriteLine("-i : Invalidates any cached database information on the local disk");
// Write usage string
Console.WriteLine("\n" + Usage.UsageString);
return;
}
// Print version string.
if (args.Length > 0 && (args[0].Equals("-v") || args[0].Equals("--version")))
{
Console.WriteLine("\n" + AppName + " " + Version.VersionString);
return;
}
// Print usage string.
if (args.Length > 0 && (args[0].Equals("-u") || args[0].Equals("--usage")))
{
Console.WriteLine("\n" + Usage.UsageString);
return;
}
// Gather command line directives.
bool isInTestMode = false;
bool invalidateCache = false;
foreach (string arg in args)
{
if (arg.Equals("-t"))
{
isInTestMode = true;
}
else if (arg.Equals("-i"))
{
invalidateCache = true;
}
}
// Read our configuration file or create an empty configuration.
Configuration.Configuration configuration = Configuration.Configuration.Load("config.json") ?? new Configuration.Configuration();
// Create our desired input shim.
InputShim.IInputShim inputShim = null;
Data.DatabaseCache databaseCache = null;
if (isInTestMode)
{
// Consume only mocked data.
inputShim = new InputShim.TestInputShim(configuration);
databaseCache = new Data.DatabaseCache(configuration, "Test");
}
else
{
// Pull live data from our database.
inputShim = new InputShim.FlipsideDatabaseInputShim(configuration);
databaseCache = new Data.DatabaseCache(configuration, "Production");
}
// If we need to invalidate the database cache, do it now.
if (invalidateCache)
{
databaseCache.Invalidate();
}
// Created output shims.
List <OutputShim.IOutputShim> outputShims = new List <OutputShim.IOutputShim>();
if (isInTestMode)
{
// Use test shims.
outputShims.Add(new OutputShim.ConsoleOutputShim());
}
else
{
// Use real shims.
outputShims.Add(new OutputShim.ConsoleOutputShim());
}
// Build the object that will process our data.
DataProcessor.DataProcessor dataProcessor = new DataProcessor.DataProcessor(configuration, inputShim, outputShims, databaseCache);
// And process it.
dataProcessor.Run();
}
