Java Code Examples for org.mozilla.javascript.ContextFactory#enterContext()

public void runJsTests(File[] tests) throws IOException {
    ContextFactory factory = ContextFactory.getGlobal();
    Context cx = factory.enterContext();
    try {
        cx.setOptimizationLevel(this.optimizationLevel);
        Scriptable shared = cx.initStandardObjects();
        for (File f : tests) {
            int length = (int) f.length(); // don't worry about very long
                                           // files
            char[] buf = new char[length];
            new FileReader(f).read(buf, 0, length);
            String session = new String(buf);
            runJsTest(cx, shared, f.getName(), session);
        }
    } finally {
        Context.exit();
    }
}
 

public void testCustomContextFactory() {
    ContextFactory factory = new MyFactory();
    Context cx = factory.enterContext();
    try {
        Scriptable globalScope = cx.initStandardObjects();
        // Test that FEATURE_MEMBER_EXPR_AS_FUNCTION_NAME is enabled
        /* TODO(stevey): fix this functionality in parser
        Object result = cx.evaluateString(globalScope,
                "var obj = {};" +
                "function obj.foo() { return 'bar'; }" +
                "obj.foo();",
                "test source", 1, null);
        assertEquals("bar", result);
        */
    } catch (RhinoException e) {
        fail(e.toString());
    } finally {
        Context.exit();
    }
}
 

@Test
public void runDoctest() throws Exception {
    ContextFactory factory = ContextFactory.getGlobal();
    Context cx = factory.enterContext();
    try {
        cx.setOptimizationLevel(optimizationLevel);
        Global global = new Global(cx);
        // global.runDoctest throws an exception on any failure
        int testsPassed = global.runDoctest(cx, global, source, name, 1);
        System.out.println(name + "(" + optimizationLevel + "): " +
                testsPassed + " passed.");
        assertTrue(testsPassed > 0);
    } catch (Exception ex) {
      System.out.println(name + "(" + optimizationLevel + "): FAILED due to "+ex);
      throw ex;
    } finally {
        Context.exit();
    }
}
 

public void testSetNullForScriptableSetter() throws Exception {

		final String scriptCode = "foo.myProp = new Foo2();\n"
			+ "foo.myProp = null;";

		final ContextFactory factory = new ContextFactory();
		final Context cx = factory.enterContext();

		try {
	        final ScriptableObject topScope = cx.initStandardObjects();
	        final Foo foo = new Foo();

	        // define custom setter method
	        final Method setMyPropMethod = Foo.class.getMethod("setMyProp", Foo2.class);
	        foo.defineProperty("myProp", null, null, setMyPropMethod, ScriptableObject.EMPTY);

	        topScope.put("foo", topScope, foo);

	        ScriptableObject.defineClass(topScope, Foo2.class);

	        cx.evaluateString(topScope, scriptCode, "myScript", 1, null);
		}
		finally {
			Context.exit();
		}
	}
 

/**
 * Evaluates the defined expression. If an exception or an evaluation error occures, the evaluation returns null and
 * the error is logged. The current datarow and a copy of the expressions properties are set to script-internal
 * variables. Changes to the properties will not alter the expressions original properties and will be lost when the
 * evaluation is finished.
 * <p/>
 * Expressions do not maintain a state and no assumptions about the order of evaluation can be made.
 *
 * @return the evaluated value or null.
 */
public Object getValue() {
  if ( expression == null ) {
    return null;
  }

  LegacyDataRowWrapper wrapper = null;
  try {
    final ContextFactory contextFactory = new ContextFactory();
    final Context context = contextFactory.enterContext();
    final Scriptable scope = context.initStandardObjects();
    wrapper = initializeScope( scope );

    final Object o = context.evaluateString( scope, expression, getName(), 1, null );
    if ( o instanceof NativeJavaObject ) {
      final NativeJavaObject object = (NativeJavaObject) o;
      return object.unwrap();
    }
    return o;
  } finally {
    if ( wrapper != null ) {
      wrapper.setParent( null );
    }
    Context.exit();
  }
}
 

/**
 * Runs the provided action at the given optimization level
 */
public static void runWithOptimizationLevel(final ContextFactory contextFactory, final ContextAction action, final int optimizationLevel)
{
   	final Context cx = contextFactory.enterContext();
   	try
   	{
   		cx.setOptimizationLevel(optimizationLevel);
   		action.run(cx);
   	}
   	finally
   	{
   		Context.exit();
   	}
}
 

/**
 * Runs the provided action at the given optimization level
 */
public static void runWithOptimizationLevel(final ContextFactory contextFactory, final ContextAction action, final int optimizationLevel)
{
   	final Context cx = contextFactory.enterContext();
   	try
   	{
   		cx.setOptimizationLevel(optimizationLevel);
   		action.run(cx);
   	}
   	finally
   	{
   		Context.exit();
   	}
}