main

Class Controller

java.lang.Object

main.Controller

public class Controller
extends Object

Contains static methods and attributes that don't fit anywhere else.

Field Summary

Fields

Modifier and Type	Field and Description
static Map<String,Class<BaseProtocol>>	protocols

Constructor Summary

Constructors

Constructor and Description
Controller()

Method Summary

Methods

Modifier and Type	Method and Description
static String	getValueForKey(String str, String key, String delimitter) Searches a key in a string and returns the value.
static boolean	loadProtocol(String name) Loads a protocol file from .
static void	loadProtocols() Loads all Protocols.
static int	nthOccurrence(String str, char c, int n) Returns the position of the nth occurence of a Char in a String.
static String	send(byte[] sendData, String IP, int PORT, String encoding) Sends a package to the server (UDP) and returns the answer.
static String	sendMulti(byte[] sendData, String IP, int PORT, String encoding, String endStr) Sends a package to the server (UDP) and receives multiple packets.
static void	start(int listIndex) Connects to a server at a specified index.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

protocols

public static Map<String,Class<BaseProtocol>> protocols

Constructor Detail

Controller

public Controller()

Method Detail

loadProtocol

public static boolean loadProtocol(String name)

Loads a protocol file from ./Protocols and adds it to the list. Loads all class files in ./Protocols and adds them to the protocol map.

Parameters:

name - The file name.

Returns:

Returns true if the protocol could be loaded.

loadProtocols

public static void loadProtocols()

Loads all Protocols. Clears the protocols list and calls loadProtocol(filepath) for all .class files in ./Protocols.

send

public static String send(byte[] sendData,
          String IP,
          int PORT,
          String encoding)

Sends a package to the server (UDP) and returns the answer.

Parameters:

sendData - The message that has to be sent, as byte array.

IP - Host IP/Address.

PORT - Blubb

Returns:

Returns the received answer with the ping (first 3 digits).

sendMulti

public static String sendMulti(byte[] sendData,
               String IP,
               int PORT,
               String encoding,
               String endStr)

Sends a package to the server (UDP) and receives multiple packets. Checks until the last packets with the endbytes arrives.

Parameters:

sendData - The message that has to be sent, as byte array.

IP - Host IP/Address.

PORT - Blubb

Returns:

Returns the received answer with the ping (first 3 digits).

start

public static void start(int listIndex)

Connects to a server at a specified index.

Parameters:

listIndex - The index the server has in Server.svArray

getValueForKey

public static String getValueForKey(String str,
                    String key,
                    String delimitter)

Searches a key in a string and returns the value. Use this method if you have a String containing key/value pairs.

Parameters:

str - The string that is searched in.

key - The key we want the value for.

delimitter - The delimitter of the key/value pairs.

Returns:

The value of the searched key. If no key was found it will return null.

nthOccurrence

public static int nthOccurrence(String str,
                char c,
                int n)

Returns the position of the nth occurence of a Char in a String.

Parameters:

str - The string that is searched in.

c - The char to be searched

n - The number of chars to skip.

Returns:

The position of the nth occurence in the string. -1 if the string doesn't contain the char.