Package ons

Class OXC

java.lang.Object
ons.OXC
Direct Known Subclasses:
EONOXC, WDMOXC
public abstract class OXC
extends java.lang.Object
The Optical Cross-Connects (OXCs) can switch the optical signal coming in on a wavelenght of an input fiber link to the same wavelength in an output fiber link. The OXC may also switch the optical signal on an incoming wavelength of an input fiber link to some other wavelength on an output fiber link. The OXC object has grooming input and output ports. Traffic grooming is the process of grouping many small data flows into larger units, so they can be processed as single units. Grooming in OXCs has the objective of minimizing the cost of the network.

  • Field Summary

    Fields 
    Modifier and Type Field Description
    protected java.util.TreeSet<java.lang.Integer> freeGroomingInputPorts  
    protected java.util.TreeSet<java.lang.Integer> freeGroomingOutputPorts  
    protected int groomingInputPorts  
    protected int groomingOutputPorts  
    protected int id  
    protected int nodeDegree  

  • Constructor Summary

    Constructors 
    Constructor Description
    OXC​(int id, int groomingInputPorts, int groomingOutputPorts, int type, int group)
    Creates a new OXC object.All its attributes must be given given by parameter, except for the free grooming input and output ports, that, at the beginning of the simulation, are the same as the total number of grooming input and output ports.

  • Method Summary

    Modifier and Type Method Description
    boolean allFreeGroomingInputPort()
    Says whether or not a given OXC has all free grooming input port(s).
    boolean allFreeGroomingOutputPort()
    Says whether or not a given OXC has all free grooming output port(s).
    int[] getActiveGroomingInputPorts()  
    int[] getActiveGroomingOutputPorts()  
    int[] getFreeGroomingInputPorts()  
    int[] getFreeGroomingOutputPorts()  
    int getGroomingInputPorts()  
    int getGroomingOutputPorts()  
    int getGroup()
    Retrieves the OXC's Group.
    int getID()
    Retrieves the OXC's unique identifier.
    int getNodeDegree()
    Retrieves the node degree (number of neighbors)
    int getType()
    Retrieves the OXC's Type.
    boolean hasFreeGroomingInputPort()
    Says whether or not a given OXC has free grooming input port(s).
    boolean hasFreeGroomingInputPort​(int groomingInputPort)
    Says whether or not a given groomingInputPort in this OXC has free
    boolean hasFreeGroomingOutputPort()
    Says whether or not a given OXC has free grooming output port(s).
    boolean hasFreeGroomingOutputPort​(int groomingOutputPort)
    Says whether or not a given groomingOutputPort in this OXC has free
    boolean isSleep()
    Retrieves whether the OXC is sleeping or awake
    boolean releaseGroomingInputPort​(int groomingInputPort)
    By increasing the number of free grooming input ports, this function "releases" a grooming input port.
    boolean releaseGroomingOutputPort​(int groomingOutputPort)
    By increasing the number of free grooming output ports, this function "releases" a grooming output port.
    int reserveGroomingInputPort()
    By decreasing the number of free grooming input ports, this function "reserves" a grooming input port.
    int reserveGroomingOutputPort()
    By decreasing the number of free grooming output ports, this function "reserves" a grooming output port.
    protected void setNodeDegree​(int nodeDegree)  

    Methods inherited from class java.lang.Object

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

  • Field Details

  • Constructor Details

    • OXC

      public OXC​(int id, int groomingInputPorts, int groomingOutputPorts, int type, int group)
      Creates a new OXC object.All its attributes must be given given by parameter, except for the free grooming input and output ports, that, at the beginning of the simulation, are the same as the total number of grooming input and output ports.
      Parameters:
      id - the OXC's unique identifier
      groomingInputPorts - total number of grooming input ports
      groomingOutputPorts - total number of grooming output ports
      type - OXC type, used in TrafficGenerator
      group - OXC group, used in TrafficGenerator

  • Method Details

    • getID

      public int getID()
      Retrieves the OXC's unique identifier.
      Returns:
      the OXC's id attribute

    • getNodeDegree

      public int getNodeDegree()
      Retrieves the node degree (number of neighbors)
      Returns:
      the number of neighbors in this node

    • setNodeDegree

      protected void setNodeDegree​(int nodeDegree)

    • hasFreeGroomingInputPort

      public boolean hasFreeGroomingInputPort()
      Says whether or not a given OXC has free grooming input port(s).
      Returns:
      true if the OXC has free grooming input port(s)

    • hasFreeGroomingInputPort

      public boolean hasFreeGroomingInputPort​(int groomingInputPort)
      Says whether or not a given groomingInputPort in this OXC has free
      Parameters:
      groomingInputPort - id of groomingInputPort
      Returns:
      true if the OXC has free grooming input port id

    • allFreeGroomingInputPort

      public boolean allFreeGroomingInputPort()
      Says whether or not a given OXC has all free grooming input port(s).
      Returns:
      true if the OXC has all free grooming input port(s)

    • reserveGroomingInputPort

      public int reserveGroomingInputPort()
      By decreasing the number of free grooming input ports, this function "reserves" a grooming input port.
      Returns:
      the number of free grooming input port, if the number is -1 is because has some error

    • releaseGroomingInputPort

      public boolean releaseGroomingInputPort​(int groomingInputPort)
      By increasing the number of free grooming input ports, this function "releases" a grooming input port. The "groomingInputPort" can be -1 when the "VirtualTopology" remove "Lightpath" that are on a optical grooming.
      Parameters:
      groomingInputPort - the grooming input Port to be released
      Returns:
      false if there are no grooming input ports to be freed

    • hasFreeGroomingOutputPort

      public boolean hasFreeGroomingOutputPort()
      Says whether or not a given OXC has free grooming output port(s).
      Returns:
      true if the OXC has free grooming output port(s)

    • hasFreeGroomingOutputPort

      public boolean hasFreeGroomingOutputPort​(int groomingOutputPort)
      Says whether or not a given groomingOutputPort in this OXC has free
      Parameters:
      groomingOutputPort - id of groomingOutputPort
      Returns:
      true if the OXC has free grooming output port id

    • allFreeGroomingOutputPort

      public boolean allFreeGroomingOutputPort()
      Says whether or not a given OXC has all free grooming output port(s).
      Returns:
      true if the OXC has all free grooming output port(s)

    • reserveGroomingOutputPort

      public int reserveGroomingOutputPort()
      By decreasing the number of free grooming output ports, this function "reserves" a grooming output port.
      Returns:
      the number of free grooming output port, if the number is -1 is because has some error

    • releaseGroomingOutputPort

      public boolean releaseGroomingOutputPort​(int groomingOutputPort)
      By increasing the number of free grooming output ports, this function "releases" a grooming output port. The "groomingOutputPort" can be -1 when the "VirtualTopology" remove "Lightpath" that are on a optical grooming.
      Parameters:
      groomingOutputPort - the grooming output Port to be released
      Returns:
      false if there are no grooming output ports to be freed

    • getGroomingInputPorts

      public int getGroomingInputPorts()

    • getFreeGroomingInputPorts

      public int[] getFreeGroomingInputPorts()

    • getActiveGroomingInputPorts

      public int[] getActiveGroomingInputPorts()

    • getGroomingOutputPorts

      public int getGroomingOutputPorts()

    • getFreeGroomingOutputPorts

      public int[] getFreeGroomingOutputPorts()

    • getActiveGroomingOutputPorts

      public int[] getActiveGroomingOutputPorts()

    • isSleep

      public boolean isSleep()
      Retrieves whether the OXC is sleeping or awake
      Returns:

    • getType

      public int getType()
      Retrieves the OXC's Type.
      Returns:
      the OXC's type attribute

    • getGroup

      public int getGroup()
      Retrieves the OXC's Group.
      Returns:
      the OXC's group attribute