Package org.gcube.informationsystem.resourceregistry.persistence.orientdb.statistics

Class InstanceStatisticsScan

java.lang.Object

org.gcube.informationsystem.resourceregistry.persistence.orientdb.statistics.InstanceStatisticsScan

public class InstanceStatisticsScan
extends Object

Computes the instances and connectivity groups of the public statistics in one pass over every instance, through the administrative connection.

Author:

Luca Frosini (ISTI - CNR)

Field Summary

Fields

Modifier and Type	Field	Description
static final int	TOP_RESOURCE_TYPES	How many Resource types topResourceTypes lists.

Constructor Summary

Constructors

Constructor	Description
InstanceStatisticsScan(Map<String,Integer> liveDepths)

Method Summary

Modifier and Type	Method	Description
org.gcube.com.fasterxml.jackson.databind.node.ObjectNode	getConnectivity()
org.gcube.com.fasterxml.jackson.databind.node.ObjectNode	getInstances()
void	scan()	Scans every instance and computes both groups.

Methods inherited from class java.lang.Object

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

Field Details

TOP_RESOURCE_TYPES

public static final int TOP_RESOURCE_TYPES

How many Resource types topResourceTypes lists.

See Also:

• Constant Field Values

Constructor Details

InstanceStatisticsScan

public InstanceStatisticsScan(Map<String,Integer> liveDepths)

Parameters:

liveDepths - the live Contexts, keyed by UUID, with their depth

Method Details

getInstances

public org.gcube.com.fasterxml.jackson.databind.node.ObjectNode getInstances()

Returns:

the instances group computed by scan()

getConnectivity

public org.gcube.com.fasterxml.jackson.databind.node.ObjectNode getConnectivity()

Returns:

the connectivity group computed by scan()

scan

public void scan()
          throws org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Scans every instance and computes both groups.

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - if the database cannot be read