bcds.phison.gm
Class EdgeSetSize<V,E>

java.lang.Object
  bcds.phison.gm.GraphMetricBase<V,E>
      bcds.phison.gm.EdgeSetSize<V,E>

All Implemented Interfaces:

GraphMetric<V,E>, WithEnvParams

public class EdgeSetSize<V,E>
extends GraphMetricBase<V,E>
implements GraphMetric<V,E>

Computes the number of undirected edges in a topology as a GraphMetric. Note that this implementation works only with topologies in which links are present in both directions. If that is not the case, an IllegalArgumentException is thrown.

Author:

Juan Segovia S.

Constructor Summary

EdgeSetSize()
Default constructor.

EdgeSetSize(SimGraph<V,E> g, Environ env)
Creates a new instance and calls setup to complete the initialization.

Method Summary

java.lang.String	getDescription() Returns a string describing the metric, for example, article where it has been published, URL where to find reference implementation, etc.
double	getGraphMetric() Returns the number of undirected edges in the topology.
java.lang.String	getLabel() Returns "Number of undir. edges".
boolean	isApplicableTo(MetricTarget m) Returns true if m is MetricTarget.GRAPH.
void	setup(SimGraph<V,E> g, Environ env) Makes sure all links in the topology are bi-directional.

Methods inherited from class bcds.phison.gm.GraphMetricBase

dump, getEdgeMetric, getEnviron, getEnvParams, getGraph, getGraphMetricStdev, getName, getNodeMetric, run

Methods inherited from class java.lang.Object

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

Methods inherited from interface bcds.phison.gm.GraphMetric

dump, getEdgeMetric, getGraphMetricStdev, getNodeMetric, run

Methods inherited from interface bcds.phison.WithEnvParams

getEnviron, getEnvParams, getName

Constructor Detail

EdgeSetSize

public EdgeSetSize()

Default constructor.

EdgeSetSize

public EdgeSetSize(SimGraph<V,E> g,
                   Environ env)

Creates a new instance and calls setup to complete the initialization.

Method Detail

setup

public void setup(SimGraph<V,E> g,
                  Environ env)

Makes sure all links in the topology are bi-directional.

Specified by:

setup in interface GraphMetric<V,E>

Overrides:

setup in class GraphMetricBase<V,E>

Throws:

java.lang.IllegalArgumentException - if there a exists a link with only one direction.

isApplicableTo

public boolean isApplicableTo(MetricTarget m)

Returns true if m is MetricTarget.GRAPH.

Specified by:

isApplicableTo in interface GraphMetric<V,E>

Overrides:

isApplicableTo in class GraphMetricBase<V,E>

getGraphMetric

public double getGraphMetric()

Returns the number of undirected edges in the topology.

Specified by:

getGraphMetric in interface GraphMetric<V,E>

Overrides:

getGraphMetric in class GraphMetricBase<V,E>

getLabel

public java.lang.String getLabel()

Returns "Number of undir. edges".

Specified by:

getLabel in interface GraphMetric<V,E>

getDescription

public java.lang.String getDescription()

Description copied from interface: GraphMetric

Returns a string describing the metric, for example, article where it has been published, URL where to find reference implementation, etc.

Specified by:

getDescription in interface GraphMetric<V,E>