seda.sandStorm.internal
Class StageGraph

java.lang.Object
  seda.sandStorm.internal.StageGraph

public class StageGraph
extends java.lang.Object

This class provides an interface allowing operations to be performed on the graph of stages within the application. Used internally (for example, by AggThrottle) to determine stage connectivity and communication statistics. Gathers data from sources such as SinkProxy.

See Also:

AggThrottle, SinkProxy

Nested Class Summary

(package private) class

StageGraph.stageList

Field Summary

private static boolean	DEBUG
private java.util.Vector	edges
private java.util.Hashtable	edgesFrom
private java.io.PrintWriter	graphpw
private java.util.Vector	stages
private java.util.Hashtable	threads

Constructor Summary

StageGraph(ManagerIF mgr)

Method Summary

void	addEdge(StageGraphEdge edge)
void	addStage(StageWrapperIF stage)
void	addThread(java.lang.Thread thread, StageWrapperIF stage)
void	dumpGraph() Output the graph in a format that can be used by the AT&T 'graphviz' program: http://www.research.att.com/sw/tools/graphviz/ Makes it easy to draw pretty pictures of stage graphs.
StageGraphEdge[]	getEdges()
StageGraphEdge[]	getEdgesFromStage(StageWrapperIF fromStage)
StageWrapperIF	getStageFromThread(java.lang.Thread thread)
StageWrapperIF[]	getStages()

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

private static final boolean DEBUG

See Also:

Constant Field Values

stages

private java.util.Vector stages

edges

private java.util.Vector edges

threads

private java.util.Hashtable threads

edgesFrom

private java.util.Hashtable edgesFrom

graphpw

private java.io.PrintWriter graphpw

Constructor Detail

StageGraph

StageGraph(ManagerIF mgr)

Method Detail

getStages

public StageWrapperIF[] getStages()

getEdges

public StageGraphEdge[] getEdges()

getEdgesFromStage

public StageGraphEdge[] getEdgesFromStage(StageWrapperIF fromStage)

getStageFromThread

public StageWrapperIF getStageFromThread(java.lang.Thread thread)

addStage

public void addStage(StageWrapperIF stage)

addThread

public void addThread(java.lang.Thread thread,
                      StageWrapperIF stage)

addEdge

public void addEdge(StageGraphEdge edge)

dumpGraph

public void dumpGraph()

Output the graph in a format that can be used by the AT&T 'graphviz' program: http://www.research.att.com/sw/tools/graphviz/ Makes it easy to draw pretty pictures of stage graphs.