A framework for creating and deploying mobile agents
$20-25 USD
Closed
Posted over 17 years ago
$20-25 USD
Paid on delivery
a framework for creating mobile agents
## Deliverables
1)need an agent interface which defines the following methods
abstract public class Agent
{
/**
* The runtime calls `initialize()` exactly once --
* after the agent is created.
*
*/
abstract public void initialize();
/**
* The runtime calls `start()` whenever an agent must be
* started.
*
*/
abstract public void start();
/**
* The runtime calls `stop()` whenever an agent must be
* stopped -- either to transfer it, to store it, or to terminate it.
*
* An agent whose `stop()` method is called should
* stop all computation, store any intermediate results, join all
* active threads, and promptly return.
*
*/
abstract public void stop();
/**
* The runtime calls `conclude()` exactly once -- before
* the agent is destroyed.
*
*/
abstract public void conclude();
}
2)agents should be able to migrate between communicating hosts
The communication goes as follows:
1. The remote host notifies the local host of its desire to transfer an agent by invoking the remote agent's `requestToSend()` method.
2. The local host marks the beginning of the transfer by invoking the remote host's `beginTransfer()` method. The remote host in turn invokes the agent's `stop()` method. When the `stop()` method returns, the agent is ready for transfer.
3. The local host gets the resource piece of the agent by invoking the remote host's `transferResource()` method. The remote host returns the resource piece as an array of bytes.
4. The local host gets the data piece of the agent by invoking the remote host's `transferData()` method. The remote host returns the data piece as an array of bytes.
5. The local host marks the end of the transfer by invoking the remote host's `endTransfer()` method. It then resurrects the agent by calling the agent's `start()` method
here the resource means the instructions which agent should execute and data means snapshopt of agent state
## Platform
java