BFDProject/Fsm.java at master · justas-/BFDProject · GitHub

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package bfd.fsm;

/**
 * This class keeps track of the current state of the BFD session by
 * implementing the FSM described in the BFD rfc document
 *
 * @author angelos
 */
public class Fsm {
    int state=1;

    void Fsm(){
        state=1;
    }
    void RecievedUp(){
        if (state==1) state=1;
        if (state==2) state=3;
        if (state==3) state=3;
    }
    void RecievedDown(){
        if (state==1) state=2;
        if (state==2) state=2;
        if (state==3) state=1;
    }

    void RecievedInit(){
        if (state==1) state=3;
        if (state==2) state=3;
        if (state==3) state=3;
    }

    void RecievedTimer(){
        if (state==1) state=1;
        if (state==2) state=1;
        if (state==3) state=1;
    }

    void RecievedAdminDown(){
        if (state==1) state=0;
        if (state==2) state=0;
        if (state==3) state=0;
    }

    int getCurrentState(){
        return state;
    }
}