/// <summary>
/// The constructor is private so that only the class itself can create an instance.
/// </summary>
private ServerSettings()
{
appName = "CrawlWave.Server";
log = new SystemEventLogger(appName);
logLevel = CWLogLevel.LogError; // by default assume only errors must be logged
dbLogOptions = CWClientActions.LogNothing; //by default assume it's a production rel.
dataFilesPath = String.Empty;
connectionString = String.Empty;
LoadSettings();
robots = RobotsCache.Instance();
robots.DBConnectionString = ProvideConnectionString();
}
/// <summary>
/// Provides a global access point for the single instance of the <see cref="RobotsCache"/>
/// class.
/// </summary>
/// <returns>A reference to the single instance of <see cref="RobotsCache"/>.</returns>
public static RobotsCache Instance()
{
if (instance == null)
{
//Make sure the call is thread-safe.
Mutex mutex = new Mutex();
mutex.WaitOne();
if (instance == null)
{
instance = new RobotsCache();
}
mutex.Close();
}
return(instance);
}
/// <summary>
/// Constructs a new instance of the <see cref="CrawlWave.ServerPlugins.UrlSelection.UrlSelectorPlugin"/> class.
/// </summary>
public UrlSelectorPlugin()
{
dataDependent = true;
description = "CrawlWave Url Selection Plugin";
enabled = true;
host = null;
name = "CrawlWave.ServerPlugins.UrlSelection";
percent = 0;
settingsPath = String.Empty;
state = PluginState.Stopped;
version = Assembly.GetExecutingAssembly().GetName().Version.ToString();
settings = PluginSettings.Instance();
dbcon = new SqlConnection(settings.DBConnectionString);
pluginThread = null;
mustStop = false;
banned = BannedHostsCache.Instance();
robots = RobotsCache.Instance();
}
/// <summary>
/// Provides a global access point for the single instance of the <see cref="RobotsCache"/>
/// class.
/// </summary>
/// <returns>A reference to the single instance of <see cref="RobotsCache"/>.</returns>
public static RobotsCache Instance()
{
if (instance == null)
{
//Make sure the call is thread-safe.
Mutex mutex = new Mutex();
mutex.WaitOne();
if (instance == null)
{
instance = new RobotsCache();
}
mutex.Close();
}
return instance;
}