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Send your graphs to IGV via a socket or a file. This package allows one to easily encode
any graph-like data structure and send it for visualization to
OracleLab's Ideal Graph Visualizer tool. Assuming you already have your own data
structure that contains nodes and edges among them, creating a GraphOutput specialized for your data is a matter of implementing a single interface: GraphSnippets.acmeGraphStructure The GraphStructure interface defines the set of operations that are needed by the graph protocol to encode a graph into the IGV expected format. The
graph structure is implemented as a so called
singletonizer API pattern: there is no need to change your data structures or implement some special interfaces - everything needed is provided by implementing the GraphStructure operations. The next step is to turn this graph structure into an instance of GraphOutput. To do so use the associated builder just like shown in the following method: GraphSnippets.buildOutput Now you are ready to dump your graph into IGV. Where to obtain the right channel? One option is to create a FileChannel and dump the data into a file (preferrably with .bgv extension). The other is to open a socket to port
4445 (the default port IGV listens to) and dump the data there. Here is an example: GraphSnippets.dump Call the dump method with pointer to file diamond.bgv and then you can open the file in IGV. The result will look like this:
You can verify the behavior directly in the IGV by downloading
diamond.bgv file generated from the above diamond structure
graph.
The primary IGV focus is on graphs used by Graal compiler. As such they aren't plain
graphs, but contain various compiler oriented attributes:
- code blocks information
- method and fields information
- Advanced support for recognizing types
all these additional interfaces (GraphBlocks, GraphElements and GraphTypes) are optional - they don't have to be provided. As such they can be specified via Builder instance methods, which may, but need not be called at all. Here is an example: GraphSnippets.buildAll All these interfaces follow the singletonizer API pattern again - e.g.
no need to change your existing data structures, just implement the operations provided by the
interfaces you pass into the builder. By combining these interfaces together you can get as rich,
colorful, source linked graphs as Graal compiler produces to describe its optimizations.
/**
* Send your graphs to <b>IGV</b> via a socket or a file. This package allows one to easily encode
* any graph-like data structure and send it for visualization to
* <em>OracleLab's Ideal Graph Visualizer</em> tool. Assuming you already have your own data
* structure that contains <b>nodes</b> and <b>edges</b> among them, creating a
* {@link org.graalvm.graphio.GraphOutput} specialized for your data is a matter of implementing a
* single interface:
*
* {@link org.graalvm.graphio.GraphSnippets#acmeGraphStructure}
*
* The {@link org.graalvm.graphio.GraphStructure} interface defines the set of operations that are
* needed by the <em>graph protocol</em> to encode a graph into the <b>IGV</b> expected format. The
* graph structure is implemented as a so called
* <a href="http://wiki.apidesign.org/wiki/Singletonizer">singletonizer</a> API pattern: there is no
* need to change your data structures or implement some special interfaces - everything needed is
* provided by implementing the {@link org.graalvm.graphio.GraphStructure} operations.
* <p>
* The next step is to turn this graph structure into an instance of
* {@link org.graalvm.graphio.GraphOutput}. To do so use the associated
* {@link org.graalvm.graphio.GraphOutput.Builder builder} just like shown in the following method:
*
* {@link org.graalvm.graphio.GraphSnippets#buildOutput}
*
* Now you are ready to dump your graph into <b>IGV</b>. Where to obtain the right channel? One
* option is to create a {@link java.nio.channels.FileChannel} and dump the data into a file
* (preferrably with <code>.bgv</code> extension). The other is to open a socket to port
* <code>4445</code> (the default port <b>IGV</b> listens to) and dump the data there. Here is an
* example:
*
* {@link org.graalvm.graphio.GraphSnippets#dump}
*
* Call the {@code dump} method with pointer to file {@code diamond.bgv} and then you can open the
* file in <b>IGV</b>. The result will look like this:
* <p>
* <img src="doc-files/diamond.png">
* <p>
* You can verify the behavior directly in the <b>IGV</b> by downloading
* <a href="doc-files/diamond.bgv">diamond.bgv</a> file generated from the above diamond structure
* graph.
* <p>
* The primary <b>IGV</b> focus is on graphs used by Graal compiler. As such they aren't plain
* graphs, but contain various compiler oriented attributes:
* <ul>
* <li>{@linkplain org.graalvm.graphio.GraphBlocks code blocks} information</li>
* <li>{@linkplain org.graalvm.graphio.GraphElements method and fields} information</li>
* <li>Advanced support for {@linkplain org.graalvm.graphio.GraphTypes recognizing types}</li>
* </ul>
* all these additional interfaces ({@link org.graalvm.graphio.GraphBlocks},
* {@link org.graalvm.graphio.GraphElements} and {@link org.graalvm.graphio.GraphTypes}) are
* optional - they don't have to be provided. As such they can be specified via
* {@link org.graalvm.graphio.GraphOutput.Builder} instance methods, which may, but need not be
* called at all. Here is an example:
*
* {@link org.graalvm.graphio.GraphSnippets#buildAll}
*
* All these interfaces follow the
* <a href="http://wiki.apidesign.org/wiki/Singletonizer">singletonizer</a> API pattern again - e.g.
* no need to change your existing data structures, just implement the operations provided by the
* interfaces you pass into the builder. By combining these interfaces together you can get as rich,
* colorful, source linked graphs as Graal compiler produces to describe its optimizations.
*/
package org.graalvm.graphio;