org.graphstream.stream.file

Class FileSinkDynamicGML

java.lang.Object

org.graphstream.stream.file.FileSinkBase

org.graphstream.stream.file.FileSinkGML

org.graphstream.stream.file.FileSinkDynamicGML

All Implemented Interfaces:

AttributeSink, ElementSink, FileSink, Sink

public class FileSinkDynamicGML
extends FileSinkGML

Transform the input events into a GML graph.

THIS CLASS IS REALLY NOT APPROPRIATE FOR GENERAL USE. Indeed the GML format is not dynamic and it is very difficult to export the correct attributes of nodes if the declaration of the attribute is far from the declaration of the node. The only way would be to store the graph in a buffer and output it at once when the file is closed.

Therefore this class outputs attributes of nodes and edges only if their addition directly follows the corresponding node or edge.

Constructor Summary

Constructors

Constructor and Description
FileSinkDynamicGML()

Method Summary

Methods

Modifier and Type	Method and Description
void	edgeAdded(String sourceId, long timeId, String edgeId, String fromNodeId, String toNodeId, boolean directed) An edge was inserted in graph.
void	edgeAttributeAdded(String sourceId, long timeId, String edgeId, String attribute, Object value) A edge attribute was added.
void	edgeAttributeChanged(String sourceId, long timeId, String edgeId, String attribute, Object oldValue, Object newValue) A edge attribute was changed.
void	edgeAttributeRemoved(String sourceId, long timeId, String edgeId, String attribute) A edge attribute was removed.
void	edgeRemoved(String sourceId, long timeId, String edgeId) An edge of graph was removed.The nodes the edge connects may already have been removed from the graph.
void	graphAttributeAdded(String sourceId, long timeId, String attribute, Object value) A graph attribute was added.
void	graphAttributeChanged(String sourceId, long timeId, String attribute, Object oldValue, Object newValue) A graph attribute was changed.
void	graphAttributeRemoved(String sourceId, long timeId, String attribute) A graph attribute was removed.
void	graphCleared(String sourceId, long timeId) The whole graph was cleared.
void	nodeAdded(String sourceId, long timeId, String nodeId) A node was inserted in the given graph.
void	nodeAttributeAdded(String sourceId, long timeId, String nodeId, String attribute, Object value) A node attribute was added.
void	nodeAttributeChanged(String sourceId, long timeId, String nodeId, String attribute, Object oldValue, Object newValue) A node attribute was changed.
void	nodeAttributeRemoved(String sourceId, long timeId, String nodeId, String attribute) A node attribute was removed.
void	nodeRemoved(String sourceId, long timeId, String nodeId) A node was removed from the graph.
void	stepBegins(String sourceId, long timeId, double step) Since dynamic graphs are based on discrete event modifications, the notion of step is defined to simulate elapsed time between events.

Methods inherited from class org.graphstream.stream.file.FileSinkBase

begin, begin, begin, end, flush, writeAll, writeAll, writeAll

Methods inherited from class java.lang.Object

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

Constructor Detail

FileSinkDynamicGML

public FileSinkDynamicGML()

Method Detail

graphAttributeAdded

public void graphAttributeAdded(String sourceId,
                       long timeId,
                       String attribute,
                       Object value)

Description copied from interface: AttributeSink

A graph attribute was added.

Specified by:

graphAttributeAdded in interface AttributeSink

Overrides:

graphAttributeAdded in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the attribute changed.

attribute - The attribute name.

value - The attribute new value.

graphAttributeChanged

public void graphAttributeChanged(String sourceId,
                         long timeId,
                         String attribute,
                         Object oldValue,
                         Object newValue)

Description copied from interface: AttributeSink

A graph attribute was changed.

Specified by:

graphAttributeChanged in interface AttributeSink

Overrides:

graphAttributeChanged in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the attribute changed.

attribute - The attribute name.

oldValue - The attribute old value.

newValue - The attribute new value.

graphAttributeRemoved

public void graphAttributeRemoved(String sourceId,
                         long timeId,
                         String attribute)

Description copied from interface: AttributeSink

A graph attribute was removed.

Specified by:

graphAttributeRemoved in interface AttributeSink

Overrides:

graphAttributeRemoved in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the attribute was removed.

attribute - The removed attribute name.

nodeAttributeAdded

public void nodeAttributeAdded(String sourceId,
                      long timeId,
                      String nodeId,
                      String attribute,
                      Object value)

Description copied from interface: AttributeSink

A node attribute was added.

Specified by:

nodeAttributeAdded in interface AttributeSink

Overrides:

nodeAttributeAdded in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the change occurred.

nodeId - Identifier of the node whose attribute changed.

attribute - The attribute name.

value - The attribute new value.

nodeAttributeChanged

public void nodeAttributeChanged(String sourceId,
                        long timeId,
                        String nodeId,
                        String attribute,
                        Object oldValue,
                        Object newValue)

Description copied from interface: AttributeSink

A node attribute was changed.

Specified by:

nodeAttributeChanged in interface AttributeSink

Overrides:

nodeAttributeChanged in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the change occurred.

nodeId - Identifier of the node whose attribute changed.

attribute - The attribute name.

oldValue - The attribute old value.

newValue - The attribute new value.

nodeAttributeRemoved

public void nodeAttributeRemoved(String sourceId,
                        long timeId,
                        String nodeId,
                        String attribute)

Description copied from interface: AttributeSink

A node attribute was removed.

Specified by:

nodeAttributeRemoved in interface AttributeSink

Overrides:

nodeAttributeRemoved in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the attribute was removed.

nodeId - Identifier of the node whose attribute was removed.

attribute - The removed attribute name.

edgeAttributeAdded

public void edgeAttributeAdded(String sourceId,
                      long timeId,
                      String edgeId,
                      String attribute,
                      Object value)

Description copied from interface: AttributeSink

A edge attribute was added.

Specified by:

edgeAttributeAdded in interface AttributeSink

Overrides:

edgeAttributeAdded in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the change occurred.

edgeId - Identifier of the edge whose attribute changed.

attribute - The attribute name.

value - The attribute new value.

edgeAttributeChanged

public void edgeAttributeChanged(String sourceId,
                        long timeId,
                        String edgeId,
                        String attribute,
                        Object oldValue,
                        Object newValue)

Description copied from interface: AttributeSink

A edge attribute was changed.

Specified by:

edgeAttributeChanged in interface AttributeSink

Overrides:

edgeAttributeChanged in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the change occurred.

edgeId - Identifier of the edge whose attribute changed.

attribute - The attribute name.

oldValue - The attribute old value.

newValue - The attribute new value.

edgeAttributeRemoved

public void edgeAttributeRemoved(String sourceId,
                        long timeId,
                        String edgeId,
                        String attribute)

Description copied from interface: AttributeSink

A edge attribute was removed.

Specified by:

edgeAttributeRemoved in interface AttributeSink

Overrides:

edgeAttributeRemoved in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the attribute was removed.

edgeId - Identifier of the edge whose attribute was removed.

attribute - The removed attribute name.

nodeAdded

public void nodeAdded(String sourceId,
             long timeId,
             String nodeId)

Description copied from interface: ElementSink

A node was inserted in the given graph.

Specified by:

nodeAdded in interface ElementSink

Overrides:

nodeAdded in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the node was added.

nodeId - Identifier of the added node.

nodeRemoved

public void nodeRemoved(String sourceId,
               long timeId,
               String nodeId)

Description copied from interface: ElementSink

A node was removed from the graph.

Specified by:

nodeRemoved in interface ElementSink

Overrides:

nodeRemoved in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the node will be removed.

nodeId - Identifier of the removed node.

edgeAdded

public void edgeAdded(String sourceId,
             long timeId,
             String edgeId,
             String fromNodeId,
             String toNodeId,
             boolean directed)

Description copied from interface: ElementSink

An edge was inserted in graph.

Specified by:

edgeAdded in interface ElementSink

Overrides:

edgeAdded in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the edge was added.

edgeId - Identifier of the added edge.

fromNodeId - Identifier of the first node of the edge.

toNodeId - Identifier of the second node of the edge.

directed - If true, the edge is directed.

edgeRemoved

public void edgeRemoved(String sourceId,
               long timeId,
               String edgeId)

Description copied from interface: ElementSink

An edge of graph was removed.The nodes the edge connects may already have been removed from the graph.

Specified by:

edgeRemoved in interface ElementSink

Overrides:

edgeRemoved in class FileSinkGML

Parameters:

sourceId - The graph where the edge will be removed.

edgeId - The edge that will be removed.

graphCleared

public void graphCleared(String sourceId,
                long timeId)

Description copied from interface: ElementSink

The whole graph was cleared. All the nodes, edges and attributes of the graph are removed.

Specified by:

graphCleared in interface ElementSink

Overrides:

graphCleared in class FileSinkGML

Parameters:

sourceId - The graph cleared.

stepBegins

public void stepBegins(String sourceId,
              long timeId,
              double step)

Description copied from interface: ElementSink

Since dynamic graphs are based on discrete event modifications, the notion of step is defined to simulate elapsed time between events. So a step is a event that occurs in the graph, it does not modify it but it gives a kind of timestamp that allow the tracking of the progress of the graph over the time.

This kind of event is useful for dynamic algorithms that listen to the dynamic graph and need to measure the time in the graph's evolution.

Specified by:

stepBegins in interface ElementSink

Overrides:

stepBegins in class FileSinkGML

Parameters:

sourceId - Identifier of the graph where the step starts.

timeId - A numerical value that may give a timestamp to track the evolution of the graph over the time.