Package org.camunda.bpm.engine.impl.scripting.engine

Class ScriptingEngines

  • All Implemented Interfaces:
    DmnScriptEngineResolver
    public class ScriptingEngines
extends java.lang.Object
implements DmnScriptEngineResolver

    Manager for JSR-223 ScriptEngine handling.

    Resolving a script engine: This class supports resolving a script engine for a given 'language name' (eg. 'groovy'). If the configuration option enableScriptEngineCaching is set to true, the class will attempt to cache 'cachable' script engines. We assume a ScriptEngine is 'cachable' if it declares to be threadsafe (see #isCachable(ScriptEngine))

    Custom Bindings: this class supports custom Bindings implementations through the scriptBindingsFactory. See ScriptBindingsFactory.

    Author:
    Tom Baeyens, Daniel Meyer

    • Field Detail

      • DEFAULT_SCRIPTING_LANGUAGE

        public static final java.lang.String DEFAULT_SCRIPTING_LANGUAGE
        See Also:
        Constant Field Values

      • GROOVY_SCRIPTING_LANGUAGE

        public static final java.lang.String GROOVY_SCRIPTING_LANGUAGE
        See Also:
        Constant Field Values

      • JAVASCRIPT_SCRIPTING_LANGUAGE

        public static final java.lang.String JAVASCRIPT_SCRIPTING_LANGUAGE
        See Also:
        Constant Field Values

      • ECMASCRIPT_SCRIPTING_LANGUAGE

        public static final java.lang.String ECMASCRIPT_SCRIPTING_LANGUAGE
        See Also:
        Constant Field Values

      • GRAAL_JS_SCRIPT_ENGINE_NAME

        public static final java.lang.String GRAAL_JS_SCRIPT_ENGINE_NAME
        See Also:
        Constant Field Values

      • DEFAULT_JS_SCRIPTING_LANGUAGE

        public static final java.lang.String DEFAULT_JS_SCRIPTING_LANGUAGE
        See Also:
        Constant Field Values

      • enableScriptEngineCaching

        protected boolean enableScriptEngineCaching

    • Method Detail

      • isEnableScriptEngineCaching

        public boolean isEnableScriptEngineCaching()

      • setEnableScriptEngineCaching

        public void setEnableScriptEngineCaching​(boolean enableScriptEngineCaching)

      • getScriptEngineManager

        public javax.script.ScriptEngineManager getScriptEngineManager()

      • addScriptEngineFactory

        public ScriptingEngines addScriptEngineFactory​(javax.script.ScriptEngineFactory scriptEngineFactory)

      • getScriptEngineForLanguage

        public javax.script.ScriptEngine getScriptEngineForLanguage​(java.lang.String language)
        Loads the given script engine by language name. Will throw an exception if no script engine can be loaded for the given language name.
        Specified by:
        getScriptEngineForLanguage in interface DmnScriptEngineResolver
        Parameters:
        language - the name of the script language to lookup an implementation for
        Returns:
        the script engine
        Throws:
        ProcessEngineException - if no such engine can be found.

      • getPaScriptEngine

        protected javax.script.ScriptEngine getPaScriptEngine​(java.lang.String language,
                                                      ProcessApplicationReference pa)

      • getGlobalScriptEngine

        protected javax.script.ScriptEngine getGlobalScriptEngine​(java.lang.String language)

      • createBindings

        public javax.script.Bindings createBindings​(javax.script.ScriptEngine scriptEngine,
                                            VariableScope variableScope)
        override to build a spring aware ScriptingEngines
        Parameters:
        engineBindin -
        scriptEngine -

      • setScriptBindingsFactory

        public void setScriptBindingsFactory​(ScriptBindingsFactory scriptBindingsFactory)

      • setScriptEngineResolver

        public void setScriptEngineResolver​(ScriptEngineResolver scriptEngineResolver)