Class ScriptingEnvironment

  • public class ScriptingEnvironment
    extends java.lang.Object

    The scripting environment contains scripts that provide an environment to a user provided script. The environment may contain additional libraries or imports.

    The environment performs lazy initialization of scripts: the first time a script of a given script language is executed, the environment will use the ScriptEnvResolvers for resolving the environment scripts for that language. The scripts (if any) are then pre-compiled and cached for reuse.

    Daniel Meyer
    • Field Detail

      • env

        protected java.util.Map<java.lang.String,​java.util.List<ExecutableScript>> env
        the cached environment scripts per script language
      • envResolvers

        protected java.util.List<ScriptEnvResolver> envResolvers
        the resolvers
      • scriptFactory

        protected ScriptFactory scriptFactory
        the script factory used for compiling env scripts
      • scriptingEngines

        protected ScriptingEngines scriptingEngines
        the scripting engines
    • Method Detail

      • execute

        public java.lang.Object execute​(ExecutableScript script,
                                        VariableScope scope)
        execute a given script in the environment
        script - the ExecutableScript to execute
        scope - the scope in which to execute the script
        the result of the script evaluation
      • execute

        public java.lang.Object execute​(ExecutableScript script,
                                        VariableScope scope,
                                        javax.script.Bindings bindings,
                                        javax.script.ScriptEngine scriptEngine)
      • getEnv

        protected java.util.Map<java.lang.String,​java.util.List<ExecutableScript>> getEnv​(java.lang.String language)
      • getEnvScripts

        protected java.util.List<ExecutableScript> getEnvScripts​(java.lang.String scriptLanguage)
        Returns the env scripts for the given language. Performs lazy initialization of the env scripts.
        scriptLanguage - the language
        a list of executable environment scripts. Never null.
      • initEnvForLanguage

        protected java.util.List<ExecutableScript> initEnvForLanguage​(java.lang.String language)
        Initializes the env scripts for a given language.
        language - the language
        the list of env scripts. Never null.