com.coveo.nashorn_modules.Require Maven / Gradle / Ivy

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package com.coveo.nashorn_modules;

import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptException;

import jdk.nashorn.api.scripting.NashornScriptEngine;

public class Require {
  // This overload registers the require function globally in the engine scope
  public static Module enable(NashornScriptEngine engine, Folder folder) throws ScriptException {
    Bindings global = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    return enable(engine, folder, global);
  }

  // This overload registers the require function in a specific Binding. It is useful when re-using the
  // same script engine across multiple threads (each thread should have his own global scope defined
  // through the binding that is passed as an argument).
  public static Module enable(NashornScriptEngine engine, Folder folder, Bindings bindings)
      throws ScriptException {
    Bindings module = engine.createBindings();
    Bindings exports = engine.createBindings();

    Module created =
        new Module(engine, folder, new ModuleCache(), "", module, exports, null, null);
    created.setLoaded();

    bindings.put("require", created);
    bindings.put("module", module);
    bindings.put("exports", exports);

    return created;
  }
}