Package io.deephaven.engine.table.impl.util

Class UpdateAncestorViz

java.lang.Object

io.deephaven.engine.table.impl.util.UpdateAncestorViz

public class UpdateAncestorViz
extends Object

Generate visualizations of update graph listeners.

The UpdateAncestorViz class generates visualizations for dependency relationships among UpdateGraph Listener performance entries using data from provided by the update performance tables. It creates representations in the Graphviz DOT format or SVG.

Method Summary

Modifier and Type	Method	Description
static String	dot(long[] entryIds, Table updatePerformanceLog, Table updateAncestors)	Generates a Graphviz DOT representation of ancestors based on the update performance log and the update performance ancestors log.
static byte[]	svg(long[] entryIds, Table updatePerformanceLog, Table updateAncestors, File filename)	Generates an SVG representation of ancestors based on the update performance log and the update performance ancestors log.

Methods inherited from class java.lang.Object

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

Method Details

svg

public static byte[] svg(long[] entryIds,
 Table updatePerformanceLog,
 Table updateAncestors,
 File filename)
                  throws IOException

Generates an SVG representation of ancestors based on the update performance log and the update performance ancestors log.

Parameters:

entryIds - an array of performance entry IDs to traverse and generate a graph for

updatePerformanceLog - a table containing update performance log data

updateAncestors - a table containing update ancestor data

filename - an optional file to which the SVG will be written; if null, the SVG is not written to a file

Returns:

a byte array representing the SVG output

Throws:

IOException - if an I/O error occurs while writing to the file

dot

public static String dot(long[] entryIds,
 Table updatePerformanceLog,
 Table updateAncestors)

Generates a Graphviz DOT representation of ancestors based on the update performance log and the update performance ancestors log.

Parameters:

entryIds - an array of performance entry IDs to traverse and generate a graph for

updatePerformanceLog - a table containing update performance log data

updateAncestors - a table containing update ancestor data

Returns:

a byte array representing the SVG output