projectinfosearch
Class AgentObject

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--projectinfosearch.AgentObject

All Implemented Interfaces:

Agent, java.lang.Runnable, java.io.Serializable

public class AgentObject

extends java.lang.Thread

implements Agent, java.io.Serializable

represents a virtual agent able to travel to different servers and achieve a given task

See Also:

Serialized Form

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

AgentObject(java.net.InetAddress homeAddr, int homePort)
"Stores" the home address and the home port

Method Summary

void	agentArrived(AgentServer srv, java.net.InetAddress srvInetAddress, int serverPort) When an AgentObject arrives at a server, this method is invoqued.
int	getCounter() returns the counter which counts the number of visited servers
java.net.InetAddress	getHomeAddress() returns the homeAddress
int	getHomePort() returns the homePort
java.lang.String	getState() returns the current state of the AgentObject
java.util.Vector	getSum() returns the vector containing the sums computed at the visited AgentServers
java.lang.String	getTask() returns the task of the AgentObject
java.util.Vector	getVisitedServers() returns the vector containing the visited AgentServers
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

AgentObject

public AgentObject(java.net.InetAddress homeAddr,
                   int homePort)

"Stores" the home address and the home port

Parameters:

-homeAddr - represents the InetAddress of the AgentClient where the agent was created

-homePort - represents the port number of the AgentClient where the agent was created

Method Detail

agentArrived

public void agentArrived(AgentServer srv,
                         java.net.InetAddress srvInetAddress,
                         int serverPort)

When an AgentObject arrives at a server, this method is invoqued. It starts a thread which searches for a file called number.text and adds the number it contains if it exists. The sum is stored in a Vector. Then it asks the server for its neighbors and asks to be sent to one of them. If all the neighbors have already been visited, it asks to be sent home. This method also adds the AgentServer's servrePort and InetAddress to the visitedServer Vector

Specified by:

agentArrived in interface Agent

Parameters:

srv - is an object representing an AgentServer where the AgentObject currently lives.

srvInetAddress - is the InetAddress of the AgentServer where the AgentObject currently lives.

serverPort - is the serverPort number of the AgentServer where the AgentObject currently lives.

run

public void run()

Overrides:

run in class java.lang.Thread

getHomeAddress

public java.net.InetAddress getHomeAddress()

returns the homeAddress

Returns:

-homeAddr of the AgentObject

getHomePort

public int getHomePort()

returns the homePort

Returns:

-homePort of the AgentObject

getState

public java.lang.String getState()

returns the current state of the AgentObject

Returns:

-state of the AgentObject

getTask

public java.lang.String getTask()

returns the task of the AgentObject

Returns:

-task of the AgentObject

getSum

public java.util.Vector getSum()

returns the vector containing the sums computed at the visited AgentServers

Returns:

-vector containing the sums

getCounter

public int getCounter()

returns the counter which counts the number of visited servers

Returns:

-counter

getVisitedServers

public java.util.Vector getVisitedServers()

returns the vector containing the visited AgentServers

Returns:

-vector containing the visited AgentServers