org.opennms.netmgt.collection.support

Class IndexStorageStrategy

java.lang.Object

org.opennms.netmgt.collection.support.IndexStorageStrategy

All Implemented Interfaces:

StorageStrategy

Direct Known Subclasses:

FrameRelayStorageStrategy, HostFileSystemStorageStrategy, JexlIndexStorageStrategy, SiblingColumnStorageStrategy, XmlStorageStrategy

public class IndexStorageStrategy
extends Object
implements StorageStrategy

Field Summary

Fields

Modifier and Type	Field and Description
protected StorageStrategyService	m_storageStrategyService

Constructor Summary

Constructors

Constructor and Description
IndexStorageStrategy()

Method Summary

Modifier and Type	Method and Description
ResourcePath	getRelativePathForAttribute(ResourcePath resourceParent, String instance) getRelativePathForAttribute
String	getResourceNameFromIndex(CollectionResource resource) This functions translate resourceIndex into a "unique" and "non-variable" name that could be identify a resource, as described earlier.
String	getResourceTypeName() getResourceTypeName
void	setParameters(List<Parameter> parameterCollection) setParameters
void	setResourceTypeName(String name) setResourceTypeName
void	setStorageStrategyService(StorageStrategyService agent) Add to a strategy the possibility to get additional information using SNMP when is necessary.

Methods inherited from class java.lang.Object

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

Field Detail

m_storageStrategyService

protected StorageStrategyService m_storageStrategyService

Constructor Detail

IndexStorageStrategy

public IndexStorageStrategy()

Method Detail

getRelativePathForAttribute

public final ResourcePath getRelativePathForAttribute(ResourcePath resourceParent,
                                                      String instance)

getRelativePathForAttribute

Specified by:

getRelativePathForAttribute in interface StorageStrategy

Parameters:

resourceParent - a String object.

instance - a String object.

Returns:

a Path object.

setResourceTypeName

public final void setResourceTypeName(String name)

setResourceTypeName

Specified by:

setResourceTypeName in interface StorageStrategy

Parameters:

name - a String object.

getResourceTypeName

public final String getResourceTypeName()

getResourceTypeName

Returns:

a String object.

getResourceNameFromIndex

public String getResourceNameFromIndex(CollectionResource resource)

This functions translate resourceIndex into a "unique" and "non-variable" name that could be identify a resource, as described earlier. This method could be expensive because it could require send SNMP queries and make complicated functions to build the name. So you must try to call it only when is necessary.

Specified by:

getResourceNameFromIndex in interface StorageStrategy

Parameters:

resource - a CollectionResource object

Returns:

a String object.

setStorageStrategyService

public final void setStorageStrategyService(StorageStrategyService agent)

Add to a strategy the possibility to get additional information using SNMP when is necessary. There are complex tables on some MIBs where indexes depends on indexes from other tables (indirect indexing). For this kind of resources we must send some additional SNMP queries to build a unique name.

Specified by:

setStorageStrategyService in interface StorageStrategy

Parameters:

agent - a org.opennms.netmgt.config.StorageStrategyService object.

setParameters

public void setParameters(List<Parameter> parameterCollection)
                   throws IllegalArgumentException

setParameters

Specified by:

setParameters in interface StorageStrategy

Parameters:

parameterCollection - a List object.

Throws:

IllegalArgumentException