Package org.frankframework.util.flow

Class GraphvizJsFlowGenerator

java.lang.Object

org.frankframework.util.flow.DotFlowGenerator

org.frankframework.util.flow.GraphvizJsFlowGenerator

All Implemented Interfaces:

IFlowGenerator, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean

public class GraphvizJsFlowGenerator
extends DotFlowGenerator

Initialized through Spring. Uses GraphvizEngine to get an available JavaScriptEngine to generate the Flow images with.

Constructor Summary

Constructors

Constructor	Description
GraphvizJsFlowGenerator()

Method Summary

Modifier and Type	Method	Description
void	afterPropertiesSet()
void	destroy()
void	generateFlow(String xml, OutputStream outputStream)
String	getFileExtension()
protected GraphvizEngine	getGraphvizEngine()	The IFlowGenerator is wrapped in a SoftReference, wrapped in a ThreadLocal.
org.springframework.http.MediaType	getMediaType()

Methods inherited from class org.frankframework.util.flow.DotFlowGenerator

generateDot

Methods inherited from class java.lang.Object

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

Constructor Details

GraphvizJsFlowGenerator

public GraphvizJsFlowGenerator()

Method Details

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

Overrides:

afterPropertiesSet in class DotFlowGenerator

Throws:

Exception

getGraphvizEngine

protected GraphvizEngine getGraphvizEngine()

The IFlowGenerator is wrapped in a SoftReference, wrapped in a ThreadLocal. When the thread is cleaned up, it will remove the instance. Or when the GC is running out of heapspace, it will remove the IFlowGenerator. This method makes sure, as long as the IFlowGenerator bean can initialize, always a valid instance is returned.

generateFlow

public void generateFlow(String xml,
 OutputStream outputStream)
                  throws FlowGenerationException

Specified by:

generateFlow in interface IFlowGenerator

Overrides:

generateFlow in class DotFlowGenerator

Throws:

FlowGenerationException

getFileExtension

public String getFileExtension()

Specified by:

getFileExtension in interface IFlowGenerator

Overrides:

getFileExtension in class DotFlowGenerator

getMediaType

public org.springframework.http.MediaType getMediaType()

Specified by:

getMediaType in interface IFlowGenerator

Overrides:

getMediaType in class DotFlowGenerator

destroy

public void destroy()

Specified by:

destroy in interface org.springframework.beans.factory.DisposableBean

Overrides:

destroy in class DotFlowGenerator