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java.lang.Object
   |
   +----edu.utah.janos.antsr.core.Capsule
           |
           +----edu.utah.janos.antsr.apps.stats.StatsCapsule

Summary

public class  StatsCapsule
     extends edu.utah.janos.antsr.core.Capsule
{
          // Fields 9
     private static final byte[] MID;
     private static final byte[] PID;
     public Vector branches;
     private static final int cachetime;
     public byte depth;
     public short dpt;
     public long keyid;
     public long now;
     public int rootaddress;

          // Constructors 2
     public StatsCapsule();
     public StatsCapsule(int);

          // Methods 8
     private int branch(Node);
     public Xdr decode();
     public Xdr encode();
     private ByteArray encodeNodeInfo(Node);
     public boolean evaluate(Node);
     public int length();
     protected byte[] mid();
     protected byte[] pid();
}

Stats request capsule.

Author:

Janos Ministry of Development

Fields

· MID

Summary  |  Top

   private static final byte[] MID

   private static final byte[] PID

   public int rootaddress

   public long keyid

   public short dpt

   public byte depth

   public long now

   private static final int cachetime

   public Vector branches

Constructors

· StatsCapsule

Summary  |  Top

   public StatsCapsule() 

   public StatsCapsule(int d) 

   protected byte[] mid() 

Overrides:

mid in class Capsule

   protected byte[] pid() 

Overrides:

pid in class Capsule

   public int length() 

Overrides:

length in class Capsule

   public Xdr encode() 

Stats request capsules look like:
4 Address of the root of the tree
4 Unique key id of this request tree
2 Application port
1 Depth
4 Time capsule was sent

Overrides:

encode in class Capsule

   public Xdr decode() 

Overrides:

decode in class Capsule

   private int branch(Node n) 

Does the actual process of branching the request packet out to all neighboring nodes except those the have already been visited.

Uses soft-state to persistantly keep track of which nodes have already been visited and to keep from sending back to root or the source of this request capsule

Returns:

The number of requests branched out

   private ByteArray encodeNodeInfo(Node n) 

Encode information about this node to be returned to the root of the stats

To change the statistics returned by the tree, change this function

   public boolean evaluate(Node n) 

Overrides:

evaluate in class Capsule

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