01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.cocoon.components.flow.javascript;
18:
19: import org.apache.cocoon.components.flow.FlowHelper;
20:
21: import org.mozilla.javascript.Undefined;
22: import org.mozilla.javascript.Wrapper;
23:
24: public class JavaScriptFlowHelper extends FlowHelper {
25:
26: /**
27: * Unwrap a Rhino object (getting the raw java object) and convert undefined to null
28: * @since 2.1.10
29: */
30: public static Object unwrap(Object obj) {
31: if (obj instanceof Wrapper) {
32: obj = ((Wrapper) obj).unwrap();
33: } else if (obj == Undefined.instance) {
34: obj = null;
35: }
36: return obj;
37: }
38:
39: }
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