/// <summary>
/// Peer Constructor. It initialize configuration according to the options passed, initialize the
/// local stream, creates the databases and resolves the IP address using Dns class.
/// </summary>
/// <param name="single">Indicates if the peer have to run kademlia layer in single bootstrap</param>
/// <param name="btpNode">Address of the suggested bootstrap node.</param>
public Peer(bool single = false, string btpNode = "")
{
log.Debug("Initializing peer structure");
this.ConfOptions = new Dictionary <string, string>();
this.ConfOptions["udpPort"] = PeerLibrary.Properties.Settings.Default.udpPort;
this.ConfOptions["kadPort"] = PeerLibrary.Properties.Settings.Default.kademliaPort;
this.localStream = new MemoryStream();
this.single = single;
this.btpNode = btpNode;
AppSettingsReader asr = new AppSettingsReader();
Persistence.RepositoryConfiguration conf = new Persistence.RepositoryConfiguration(new { data_dir = (string)asr.GetValue("TrackRepository", typeof(string)) });
this.trackRep = Persistence.RepositoryFactory.GetRepositoryInstance("Raven", conf);
// this.peerAddress = "127.0.0.1";
IPHostEntry IPHost = Dns.GetHostEntry(Dns.GetHostName());
IPAddress[] listaIP = IPHost.AddressList;
foreach (IPAddress ip in listaIP)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
this.peerAddress = ip.ToString();
break;
}
}
}
/// <summary>
/// This example shows how to instantiate a new raven repository
/// </summary>
public static void LoadRavenExample()
{
ExampleHelper.ExampleMethodPrint("Generate Raven Repository Instance", MethodInfo.GetCurrentMethod());
Persistence.RepositoryConfiguration conf = new Persistence.RepositoryConfiguration(new { data_dir = "..\\..\\Resource\\Database" });
_trackRep = Persistence.RepositoryFactory.GetRepositoryInstance("Raven", conf);
Console.WriteLine(_trackRep.GetType().FullName + " - " + _trackRep.RepositoryType);
}
/// <summary>
/// Constructor for the Kademlia Repository. This begins with compiling regular expressions for whitespace and semanticless
/// words and setting timespan sing the given values (if they are not passed, it uses the default). Then instantiates the
/// repository of the fiven type and creates two indexes over the instantiatied repository. The first index is used to
/// find keywords with an empty tag list; the second one is used to query keyword using tag identifier. Both indexes are
/// necessary in order to cleanly delete resources and keywords from the repository
/// </summary>
/// <param name="repType">Name of the repository type. The default repository type is RavenDB ("Raven")</param>
/// <param name="conf">Repository Configureation</param>
/// <param name="elementValidity">Validity period of a Dht Element. Default value is 24 hours (1 day). The validity must
/// be expressed in timespan format as described in MSDN reference for this type.</param>
/// <param name="semanticFilter">Regular expression that will be used to remove semanticless word.</param>
public KademliaRepository(string repType = "Raven",
RepositoryConfiguration conf = null,
string elementValidity = "1",
string semanticFilter = KademliaRepository.DefaultSemanticFilterRegexString)
{
log.Debug("Semantic Filter Regex used is " + DefaultSemanticFilterRegexString);
if (!(TimeSpan.TryParse(elementValidity, out this._elementValidity)))
{
this._elementValidity = new TimeSpan(24, 0, 0);
}
this._semanticRegex = new Regex(DefaultSemanticFilterRegexString, RegexOptions.Compiled | RegexOptions.IgnoreCase);
this._whiteSpaceRegex = new Regex(@"[ ]{2,}", RegexOptions.Compiled);
this._repository = RepositoryFactory.GetRepositoryInstance(repType, conf);
this._repository.CreateIndex("KademliaKeywords/KeysByTag",
"from key in docs.KademliaKeywords\nfrom tag in key.Tags\nselect new { Kid = key.Id , Tid = tag}");
this._repository.CreateIndex("KademliaKeywords/EmptyKeys",
"from key in docs.KademliaKeywords\nwhere key.Tags.Count() == 0\nselect new { key.Id }");
}
/// <summary>
/// Metodo statico per ottenere un'istanza di un repository di un tipo specificato.
/// Se tutto va a buon fine il metodo ritornerà un oggetto delle classe Persistence.RepositoryImpl.TipoRepository derivata
/// dalla classe astratta Persistence.Repository.
/// Se viene richiesto un tipo di repository non disponibile verrà sollevata un'eccezione; è quindi preferibile, nel caso in
/// cui non si sia sicuri della disponibilità di un tipo di repository, usare il metodo IsValidRepositoryType della Factory.
/// </summary>
/// <example>
/// Persistence.Repository repo=Persistence.RepositoryFactory("raven");
/// Console.Writeline(repo.RepositoryType); //raven
/// </example>
/// <param name="repType">Stringa rappresentante il tipo di repository richiesto.</param>
/// <returns>Un'istanza del repository del tipo richiesto.</returns>
/// <exception cref="System.TypeLoadException">Eccezione sollevata nel caso ci siano errori nel caricamento della classe
/// del repository o nell'invocazione del suo costruttore di default.</exception>
/// <exception cref="System.ArgumentException">Eccezione sollevata nel caso in cui la stringa contenente il tipo di repository
/// richiesto risulti vuota</exception>
/// <exception cref="System.ArgumentNullException">Eccezione sollevata nel caso in cui la stringa contenente il tipo di
/// repository richiesto risulti essere nulla</exception>
public static Repository GetRepositoryInstance(String repType, RepositoryConfiguration config)
{
if (repType != null)
{
if (repType.Length != 0)
{
String className = _generateRepositoryClassName(repType);
try
{
Type reflectedRepository = Type.GetType(className, true, true);
Type[] args = new Type[1] {
config.GetType()
};
Object[] param = new Object[1] {
config
};
object rep = reflectedRepository.GetConstructor(args).Invoke(param);
Repository inst = rep as Repository;
if (inst.RepositoryType.Equals(repType))
{
return(inst);
}
else
{
throw new TypeLoadException("Type " + inst.RepositoryType + " is different from the expected " + repType + "!");
}
}
catch (Exception ex)
{
throw new TypeLoadException("Unable to load repository class " + className, ex);
}
}
else
{
throw new ArgumentException("Repository Type Name must not be Empty!");
}
}
else
{
throw new ArgumentNullException("Repository Type Name must not be NULL!");
}
}
/// <summary>
/// This example shows how to instantiate a new raven repository
/// </summary>
public static void LoadRavenExample()
{
ExampleHelper.ExampleMethodPrint("Generate Raven Repository Instance", MethodInfo.GetCurrentMethod());
Persistence.RepositoryConfiguration conf = new Persistence.RepositoryConfiguration(new { data_dir = "..\\..\\Resource\\Database" });
_trackRep= Persistence.RepositoryFactory.GetRepositoryInstance("Raven",conf);
Console.WriteLine(_trackRep.GetType().FullName+" - " + _trackRep.RepositoryType);
}
/// <summary>
/// Repository Constructor that initializes the repository of the given type.
/// </summary>
/// <param name="repType">Name of the repository Type</param>
/// <param name="conf">Configuration for the repository</param>
public TrackRepository(string repType, RepositoryConfiguration conf)
{
this._repository = RepositoryFactory.GetRepositoryInstance(repType, conf);
}
/// <summary>
/// Peer Constructor. It initialize configuration according to the options passed, initialize the
/// local stream, creates the databases and resolves the IP address using Dns class.
/// </summary>
/// <param name="single">Indicates if the peer have to run kademlia layer in single bootstrap</param>
/// <param name="btpNode">Address of the suggested bootstrap node.</param>
public Peer(bool single = false, string btpNode = "")
{
log.Debug("Initializing peer structure");
this.ConfOptions = new Dictionary<string, string>();
this.ConfOptions["udpPort"] = PeerLibrary.Properties.Settings.Default.udpPort;
this.ConfOptions["kadPort"] = PeerLibrary.Properties.Settings.Default.kademliaPort;
this.localStream = new MemoryStream();
this.single = single;
this.btpNode = btpNode;
AppSettingsReader asr = new AppSettingsReader();
Persistence.RepositoryConfiguration conf = new Persistence.RepositoryConfiguration(new { data_dir = (string)asr.GetValue("TrackRepository", typeof(string)) });
this.trackRep = Persistence.RepositoryFactory.GetRepositoryInstance("Raven", conf);
// this.peerAddress = "127.0.0.1";
IPHostEntry IPHost = Dns.GetHostEntry(Dns.GetHostName());
IPAddress[] listaIP = IPHost.AddressList;
foreach (IPAddress ip in listaIP)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
this.peerAddress = ip.ToString();
break;
}
}
}
