/**
* Load and parse the BeanShell script via {@link BshScriptUtils}.
*
* @see BshScriptUtils#createBshObject(String, Class[], ClassLoader)
*/
@Override
public Object getScriptedObject(ScriptSource scriptSource, Class<?>... actualInterfaces)
throws IOException, ScriptCompilationException {
try {
Class<?> clazz;
synchronized (this.scriptClassMonitor) {
boolean requiresScriptEvaluation =
(this.wasModifiedForTypeCheck && this.scriptClass == null);
this.wasModifiedForTypeCheck = false;
if (scriptSource.isModified() || requiresScriptEvaluation) {
// New script content: Let's check whether it evaluates to a Class.
Object result =
BshScriptUtils.evaluateBshScript(
scriptSource.getScriptAsString(), actualInterfaces, this.beanClassLoader);
if (result instanceof Class) {
// A Class: We'll cache the Class here and create an instance
// outside of the synchronized block.
this.scriptClass = (Class) result;
} else {
// Not a Class: OK, we'll simply create BeanShell objects
// through evaluating the script for every call later on.
// For this first-time check, let's simply return the
// already evaluated object.
return result;
}
}
clazz = this.scriptClass;
}
if (clazz != null) {
// A Class: We need to create an instance for every call.
try {
return clazz.newInstance();
} catch (Throwable ex) {
throw new ScriptCompilationException(
scriptSource, "Could not instantiate script class: " + clazz.getName(), ex);
}
} else {
// Not a Class: We need to evaluate the script for every call.
return BshScriptUtils.createBshObject(
scriptSource.getScriptAsString(), actualInterfaces, this.beanClassLoader);
}
} catch (EvalError ex) {
throw new ScriptCompilationException(scriptSource, ex);
}
}
@Override
public Class<?> getScriptedObjectType(ScriptSource scriptSource)
throws IOException, ScriptCompilationException {
try {
synchronized (this.scriptClassMonitor) {
if (scriptSource.isModified()) {
// New script content: Let's check whether it evaluates to a Class.
this.wasModifiedForTypeCheck = true;
this.scriptClass =
BshScriptUtils.determineBshObjectType(
scriptSource.getScriptAsString(), this.beanClassLoader);
}
return this.scriptClass;
}
} catch (EvalError ex) {
throw new ScriptCompilationException(scriptSource, ex);
}
}
