Package org.openiam.script

Class AbstractGroovyScriptEngineIntegration

java.lang.Object

org.openiam.script.AbstractGroovyScriptEngineIntegration

All Implemented Interfaces:

ScriptIntegration, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

Direct Known Subclasses:

GroovyScriptEngineIntegration

public abstract class AbstractGroovyScriptEngineIntegration
extends Object
implements ScriptIntegration, org.springframework.context.ApplicationContextAware

Author:

Zdenko Imrek

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractGroovyScriptEngineIntegration.GroovyCache	Used to cache groovy body. we can't cache groovy class instances because they are not stateless, for example org.openiam.workflow.activiti.groovy.AbstractApproverAssociationIdentifier
protected static class	AbstractGroovyScriptEngineIntegration.GroovyClassCache

Field Summary

Fields

Modifier and Type	Field	Description
protected org.springframework.context.ApplicationContext	ac
protected static String	APP_CONTEXT
static String	BLACKLIST_PATTERNS
static ThreadLocal<Map<String,Object>>	COMPILE_OPTIONS
protected groovy.text.GStringTemplateEngine	engine
protected groovy.lang.GroovyClassLoader	gle
protected AbstractGroovyScriptEngineIntegration.GroovyCache	groovyCache
protected AbstractGroovyScriptEngineIntegration.GroovyClassCache	groovyClassCache
protected groovy.util.GroovyScriptEngine	gse
protected static org.apache.commons.logging.Log	LOG
static String	WHITELIST_PATTERNS

Constructor Summary

Constructors

Constructor	Description
AbstractGroovyScriptEngineIntegration()

Method Summary

Modifier and Type	Method	Description
void	cleanupClassInfoReferences()	This method is responsible for removing the ClassInfo junk that Groovy creates when instantiating a class We need to remove it, becuase after 8-9 hours of heavy load, Old Gen becomes globbed with WeakReferences and CachedMethod objects, which add up over a long period of time.
Class	compile(String script)
String	evaluate(Map<String,Object> bindingMap, String gstring)
Object	execute(Map<String,Object> bindingMap, String scriptName)	Execute groovy script.
void	init()
Object	instantiateClass(Map<String,Object> bindingMap, String scriptName)
Object	instantiateClass(Map<String,Object> bindingMap, String storageDirectory, String scriptName)	Deprecated.
protected abstract String	loadScript(String script)
static void	main(String[] args)
boolean	scriptExists(String scriptName)
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)

Methods inherited from class java.lang.Object

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

Field Detail

COMPILE_OPTIONS

public static final ThreadLocal<Map<String,Object>> COMPILE_OPTIONS

WHITELIST_PATTERNS

public static final String WHITELIST_PATTERNS

See Also:

Constant Field Values

BLACKLIST_PATTERNS

public static final String BLACKLIST_PATTERNS

See Also:

Constant Field Values

APP_CONTEXT

protected static final String APP_CONTEXT

See Also:

Constant Field Values

ac

protected org.springframework.context.ApplicationContext ac

LOG

protected static final org.apache.commons.logging.Log LOG

gle

protected groovy.lang.GroovyClassLoader gle

gse

protected groovy.util.GroovyScriptEngine gse

engine

protected groovy.text.GStringTemplateEngine engine

groovyCache

protected AbstractGroovyScriptEngineIntegration.GroovyCache groovyCache

groovyClassCache

protected AbstractGroovyScriptEngineIntegration.GroovyClassCache groovyClassCache

Constructor Detail

AbstractGroovyScriptEngineIntegration

public AbstractGroovyScriptEngineIntegration()

Method Detail

init

@PostConstruct
public void init()
          throws IOException,
                 NoSuchFieldException,
                 SecurityException,
                 IllegalArgumentException,
                 IllegalAccessException,
                 NoSuchMethodException,
                 ClassNotFoundException

Throws:

IOException

NoSuchFieldException

SecurityException

IllegalArgumentException

IllegalAccessException

NoSuchMethodException

ClassNotFoundException

evaluate

public String evaluate(Map<String,Object> bindingMap,
                       String gstring)
                throws IOException

Specified by:

evaluate in interface ScriptIntegration

Throws:

IOException

scriptExists

public boolean scriptExists(String scriptName)

Specified by:

scriptExists in interface ScriptIntegration

execute

public Object execute(Map<String,Object> bindingMap,
                      String scriptName)
               throws ScriptEngineException

Description copied from interface: ScriptIntegration

Execute groovy script.

Specified by:

execute in interface ScriptIntegration

Parameters:

bindingMap - map of input data

scriptName - groovy script name to load

Returns:

any data, need for custom parsing

Throws:

ScriptEngineException

compile

public Class compile(String script)
              throws CheckGroovyException,
                     org.codehaus.groovy.control.MultipleCompilationErrorsException

Specified by:

compile in interface ScriptIntegration

Throws:

CheckGroovyException

org.codehaus.groovy.control.MultipleCompilationErrorsException

instantiateClass

public Object instantiateClass(Map<String,Object> bindingMap,
                               String scriptName)
                        throws IOException

Specified by:

instantiateClass in interface ScriptIntegration

Throws:

IOException

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

instantiateClass

@Deprecated
public Object instantiateClass(Map<String,Object> bindingMap,
                               String storageDirectory,
                               String scriptName)
                        throws IOException

Deprecated.

Specified by:

instantiateClass in interface ScriptIntegration

Throws:

IOException

loadScript

protected abstract String loadScript(String script)

cleanupClassInfoReferences

@Scheduled(fixedRateString="${org.openiam.groovy.cleanup.sweeptime}")
public void cleanupClassInfoReferences()
                                throws IllegalAccessException,
                                       IllegalArgumentException,
                                       InvocationTargetException

This method is responsible for removing the ClassInfo junk that Groovy creates when instantiating a class We need to remove it, becuase after 8-9 hours of heavy load, Old Gen becomes globbed with WeakReferences and CachedMethod objects, which add up over a long period of time.

The Garbage Collector is very slow in removing these, and under persistnet high load, you will run out of memory.

Throws:

IllegalAccessException

IllegalArgumentException

InvocationTargetException

main

public static void main(String[] args)