org.openksavi.sponge.core.kb

Class EngineScriptKnowledgeBaseInterpreter

java.lang.Object

org.openksavi.sponge.core.kb.BaseKnowledgeBaseInterpreter

org.openksavi.sponge.core.kb.BaseScriptKnowledgeBaseInterpreter

org.openksavi.sponge.core.kb.EngineScriptKnowledgeBaseInterpreter

All Implemented Interfaces:

org.openksavi.sponge.kb.KnowledgeBaseInterpreter, org.openksavi.sponge.kb.KnowledgeBaseOperations, org.openksavi.sponge.kb.ScriptKnowledgeBaseInterpreter

public abstract class EngineScriptKnowledgeBaseInterpreter
extends BaseScriptKnowledgeBaseInterpreter

Script Engine (JSR-223) based knowledge base interpreter.

Field Summary

Fields

Modifier and Type	Field and Description
protected ScriptEngine	scriptEngine Script engine instance.

Fields inherited from class org.openksavi.sponge.core.kb.BaseScriptKnowledgeBaseInterpreter

cachedScriptClassInstancePovider, interpteterSynchro, PROP_PATH_SEPARATOR

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EngineScriptKnowledgeBaseInterpreter(org.openksavi.sponge.kb.KnowledgeBaseEngineOperations engineOperations, org.openksavi.sponge.kb.KnowledgeBaseType type) Creates a new Knowledge Interpreter.

Method Summary

Modifier and Type	Method and Description
protected <T> CachedScriptClassInstancePovider	createCachedScriptClassInstancePovider()
protected abstract ScriptEngine	createScriptEngine() Creates scripting engine.
<T> T	eval(Reader reader, String fileName)
protected <T> T	eval(ScriptEngine scriptEngine, String expression)
<T> T	eval(String expression)
boolean	existsVariable(String name)
protected Invocable	getInvocable()
Throwable	getJavaException(Throwable knowledgeBaseException)
protected abstract String	getScriptClassInstancePoviderFormat()
ScriptEngine	getScriptEngine()
Object	getVariable(String name)
<T> T	invokeFunction(String name, Class<T> cls, Object... args)
Object	invokeMethod(Object target, String name, Object... args)
void	invokeOptionalFunction(String name)
boolean	isKnowledgeBaseException(Throwable exception)
void	onClear() Clears the interpreter state.
protected void	prepareInterpreter() Prepares the interpreter.
String	resolveVariableName(Object value)
void	setVariable(String name, Object value) Sets the variable value.

Methods inherited from class org.openksavi.sponge.core.kb.BaseScriptKnowledgeBaseInterpreter

createInterpreterInstance, doCreateInstance, doLoad, doReload, eval, getStandardImportClasses, invalidateCache, isProcessorAbstract, load, load, load, load, load, load, onAfterReload, onBeforeReload, onInit, onLoad, onShutdown, onStartup, reload

Methods inherited from class org.openksavi.sponge.core.kb.BaseKnowledgeBaseInterpreter

createPluginInstance, createProcessorInstance, getCustomRuleEventSpec, getEngineOperations, getLogger, getRuleEventSpec, getType, getVariable, resolveEventNameAndAlias

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openksavi.sponge.kb.ScriptKnowledgeBaseInterpreter

scanToAutoEnable

Methods inherited from interface org.openksavi.sponge.kb.KnowledgeBaseInterpreter

createPluginInstance, createProcessorInstance, getEngineOperations, getRuleEventSpec, getScriptKnowledgeBaseProcessorClassName, getType, getVariable

Field Detail

scriptEngine

protected ScriptEngine scriptEngine

Script engine instance.

Constructor Detail

EngineScriptKnowledgeBaseInterpreter

protected EngineScriptKnowledgeBaseInterpreter(org.openksavi.sponge.kb.KnowledgeBaseEngineOperations engineOperations,
                                               org.openksavi.sponge.kb.KnowledgeBaseType type)

Creates a new Knowledge Interpreter.

Parameters:

engineOperations - an engine operations.

type - a knowledge base type.

Method Detail

getScriptClassInstancePoviderFormat

protected abstract String getScriptClassInstancePoviderFormat()

createScriptEngine

protected abstract ScriptEngine createScriptEngine()

Creates scripting engine.

Returns:

scripting engine.

prepareInterpreter

protected void prepareInterpreter()

Prepares the interpreter.

Specified by:

prepareInterpreter in class BaseScriptKnowledgeBaseInterpreter

onClear

public void onClear()

Clears the interpreter state.

getInvocable

protected Invocable getInvocable()

invokeOptionalFunction

public void invokeOptionalFunction(String name)

invokeFunction

public <T> T invokeFunction(String name,
                            Class<T> cls,
                            Object... args)

invokeMethod

public Object invokeMethod(Object target,
                           String name,
                           Object... args)

setVariable

public void setVariable(String name,
                        Object value)

Sets the variable value.

Parameters:

name - variable name.

value - variable value.

existsVariable

public boolean existsVariable(String name)

getVariable

public Object getVariable(String name)

eval

public <T> T eval(String expression)

eval

protected <T> T eval(ScriptEngine scriptEngine,
                     String expression)

eval

public <T> T eval(Reader reader,
                  String fileName)

Specified by:

eval in class BaseScriptKnowledgeBaseInterpreter

getScriptEngine

public ScriptEngine getScriptEngine()

resolveVariableName

public String resolveVariableName(Object value)

isKnowledgeBaseException

public boolean isKnowledgeBaseException(Throwable exception)

getJavaException

public Throwable getJavaException(Throwable knowledgeBaseException)

createCachedScriptClassInstancePovider

protected <T> CachedScriptClassInstancePovider createCachedScriptClassInstancePovider()

Specified by:

createCachedScriptClassInstancePovider in class BaseScriptKnowledgeBaseInterpreter