org.teiid.net.socket
Class UrlServerDiscovery

java.lang.Object
  org.teiid.net.socket.UrlServerDiscovery

All Implemented Interfaces:

ServerDiscovery

public class UrlServerDiscovery
extends java.lang.Object
implements ServerDiscovery

Simple URL discovery strategy with a random load balancing policy TOOD: add black listing support

Constructor Summary

UrlServerDiscovery()

UrlServerDiscovery(TeiidURL url)

Method Summary

void	connectionSuccessful(HostInfo info) Indicates that a connection was made successfully to the given host.
java.util.List<HostInfo>	getKnownHosts(LogonResult result, SocketServerInstance instance) Get the currently known hosts.
void	init(TeiidURL url, java.util.Properties p) Initialize the ServerDiscovery
void	markInstanceAsBad(HostInfo info) Indicates that a connection could not be made to the given host.
HostInfo	selectNextInstance(java.util.List<HostInfo> hosts) Select the next instance to try.
void	shutdown() Shutdown this ServerDiscovery

Methods inherited from class java.lang.Object

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

Constructor Detail

UrlServerDiscovery

public UrlServerDiscovery()

UrlServerDiscovery

public UrlServerDiscovery(TeiidURL url)

Method Detail

getKnownHosts

public java.util.List<HostInfo> getKnownHosts(LogonResult result,
                                              SocketServerInstance instance)

Description copied from interface: ServerDiscovery

Get the currently known hosts. Will be called prior to connecting and after authentication for each connection.

Specified by:

getKnownHosts in interface ServerDiscovery

Returns:

init

public void init(TeiidURL url,
                 java.util.Properties p)

Description copied from interface: ServerDiscovery

Initialize the ServerDiscovery

Specified by:

init in interface ServerDiscovery

connectionSuccessful

public void connectionSuccessful(HostInfo info)

Description copied from interface: ServerDiscovery

Indicates that a connection was made successfully to the given host.

Specified by:

connectionSuccessful in interface ServerDiscovery

markInstanceAsBad

public void markInstanceAsBad(HostInfo info)

Description copied from interface: ServerDiscovery

Indicates that a connection could not be made to the given host.

Specified by:

markInstanceAsBad in interface ServerDiscovery

shutdown

public void shutdown()

Description copied from interface: ServerDiscovery

Shutdown this ServerDiscovery

Specified by:

shutdown in interface ServerDiscovery

selectNextInstance

public HostInfo selectNextInstance(java.util.List<HostInfo> hosts)

Description copied from interface: ServerDiscovery

Select the next instance to try. The entry should be removed from the list when no more attempts are desired. and not return null.

Specified by:

selectNextInstance in interface ServerDiscovery

Returns:

a non-null HostInfo to try