Package com.uc4.communication

Class AEConnectionPool

java.lang.Object

com.uc4.communication.AEConnectionPool

public class AEConnectionPool
extends Object

Maintains a pool of connections. The users of this class don't have to create and close the connection. Connections to the Automation Engine are created on demand and closed based on a timeout.

Constructor Summary

Constructors

Constructor	Description
AEConnectionPool(int maxLifetime)	Creates a new ConnectionMananger instance with a maximum lifetime of connections.

Method Summary

Modifier and Type	Method	Description
void	sendRequestAndWait(ConnectProperties connectInfo, XMLRequest req)	Sends a request to the Automation Engine.
void	sendRequestAndWait(ConnectProperties connectInfo, XMLRequest req, Properties options)	Sends a request to the Automation Engine.
void	shutdown()	Closes all open connections.
int	size()

Methods inherited from class java.lang.Object

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

Constructor Details

AEConnectionPool

public AEConnectionPool(int maxLifetime)

Creates a new ConnectionMananger instance with a maximum lifetime of connections.

Parameters:

maxLifetime - Number of seconds after which connections are closed.

Method Details

shutdown

public void shutdown()

Closes all open connections.

size

public int size()

Returns:

The number of open connections.

sendRequestAndWait

public void sendRequestAndWait(ConnectProperties connectInfo,
 XMLRequest req)
                        throws IOException

Sends a request to the Automation Engine. This method may use an existing connection from the pool or create a new one.

Parameters:

connectInfo - Connect information

req - Request

Throws:

IOException - If there are I/O errors or the login fails

sendRequestAndWait

public void sendRequestAndWait(ConnectProperties connectInfo,
 XMLRequest req,
 Properties options)
                        throws IOException

Sends a request to the Automation Engine. This method may use an existing connection from the pool or create a new one.

Parameters:

connectInfo - Connect information

req - Request

options - This properties are only used when a new Connection is created. These are the same properties as in the method Connection.open(String servername, int port, Properties options) Supported parameters:

Key	Description
DIRECT	If set to the String "YES" the load balancing will be disabled
AGENTNAME	Name of the Agent if the connection is created within an UC4 Agent process
HOSTNAME	Name of the user's host. This value will be shown in the system overview
REMOTE_ID	Remote ID. This value will be shown in the system overview
SECRET_TYPE	Optional: Type of the secret in the login method. Values: "ET" (Exit-Token), "TK" (AE-Token) and "PW" (Password)

Throws:

IOException - If there are I/O errors or the login fails