Package org.opennms.netmgt.dao.hibernate

Class InterfaceToNodeCacheDaoImpl

java.lang.Object

org.opennms.netmgt.dao.api.AbstractInterfaceToNodeCache

org.opennms.netmgt.dao.hibernate.InterfaceToNodeCacheDaoImpl

All Implemented Interfaces:

InterfaceToNodeCache

public class InterfaceToNodeCacheDaoImpl
extends AbstractInterfaceToNodeCache
implements InterfaceToNodeCache

This class represents a singular instance that is used to map IP addresses to known nodes.

Author:

Seth, Johan Edstrom, Brian Weaver , Tarus Balog , OpenNMS

Constructor Summary

Constructors

Constructor	Description
InterfaceToNodeCacheDaoImpl()
InterfaceToNodeCacheDaoImpl(long refreshRate)

Method Summary

Modifier and Type	Method	Description
void	clear()	Should only be used for testing.
void	dataSourceSync()	Clears and synchronizes the internal known IP address cache with the current information contained in the database.
void	destroy()
IpInterfaceDao	getIpInterfaceDao()
NodeDao	getNodeDao()
Iterable<Integer>	getNodeId(String location, InetAddress address)	Returns the nodeid for the IP Address
void	init()
void	removeInterfacesForNode(int nodeId)
boolean	removeNodeId(String location, InetAddress address, int nodeId)	Removes an address from the node ID map.
void	setIpInterfaceDao(IpInterfaceDao ipInterfaceDao)
void	setNodeDao(NodeDao nodeDao)
boolean	setNodeId(String location, InetAddress addr, int nodeid)	Sets the IP Address and Node ID in the Map.
int	size()

Methods inherited from class org.opennms.netmgt.dao.api.AbstractInterfaceToNodeCache

getFirstNodeId, getInstance, setInstance

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opennms.netmgt.dao.api.InterfaceToNodeCache

getFirstNodeId

Constructor Detail

InterfaceToNodeCacheDaoImpl

public InterfaceToNodeCacheDaoImpl()

InterfaceToNodeCacheDaoImpl

public InterfaceToNodeCacheDaoImpl(long refreshRate)

Method Detail

init

@PostConstruct
public void init()

destroy

@PreDestroy
public void destroy()

getNodeDao

public NodeDao getNodeDao()

setNodeDao

public void setNodeDao(NodeDao nodeDao)

getIpInterfaceDao

public IpInterfaceDao getIpInterfaceDao()

setIpInterfaceDao

public void setIpInterfaceDao(IpInterfaceDao ipInterfaceDao)

dataSourceSync

@Transactional
public void dataSourceSync()

Clears and synchronizes the internal known IP address cache with the current information contained in the database. To synchronize the cache the method opens a new connection to the database, loads the address, and then closes it's connection.

Specified by:

dataSourceSync in interface InterfaceToNodeCache

Throws:

SQLException - Thrown if the connection cannot be created or a database error occurs.

getNodeId

public Iterable<Integer> getNodeId(String location,
                                   InetAddress address)

Returns the nodeid for the IP Address

If multiple nodes hav assigned interfaces with the same IP, this returns all known nodes sorted by the interface management priority.

Specified by:

getNodeId in interface InterfaceToNodeCache

Parameters:

address - The IP Address to query.

Returns:

The node ID of the IP Address if known.

setNodeId

@Transactional
public boolean setNodeId(String location,
                         InetAddress addr,
                         int nodeid)

Sets the IP Address and Node ID in the Map.

Specified by:

setNodeId in interface InterfaceToNodeCache

Parameters:

addr - The IP Address to add.

nodeid - The Node ID to add.

Returns:

The nodeid if it existed in the map.

removeNodeId

public boolean removeNodeId(String location,
                            InetAddress address,
                            int nodeId)

Removes an address from the node ID map.

Specified by:

removeNodeId in interface InterfaceToNodeCache

Parameters:

address - The address to remove from the node ID map.

Returns:

The nodeid that was in the map.

size

public int size()

Specified by:

size in interface InterfaceToNodeCache

clear

public void clear()

Description copied from interface: InterfaceToNodeCache

Should only be used for testing.

Specified by:

clear in interface InterfaceToNodeCache

removeInterfacesForNode

public void removeInterfacesForNode(int nodeId)

Specified by:

removeInterfacesForNode in interface InterfaceToNodeCache