| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package flex.messaging.io.amf.translator.decoder; |
| |
| /** |
| * Decode an ActionScript enumeration object (generally a string) to a Java enum. |
| * |
| */ |
| public class EnumDecoder extends ActionScriptDecoder |
| { |
| /** |
| * Does this type have a placeholder shell? |
| * True for Enumerations. |
| * @return boolean true if it has a shell |
| */ |
| @Override |
| public boolean hasShell() |
| { |
| return true; |
| } |
| |
| /** |
| * Create the enumeration object based on the string. |
| * |
| * @param encodedObject the object |
| * @param desiredClass ignored |
| * @return Object the created shell object |
| */ |
| @Override |
| public Object createShell(Object encodedObject, Class desiredClass) |
| { |
| if (encodedObject instanceof Enum) |
| return encodedObject; |
| |
| if (encodedObject == null) |
| return null; |
| |
| @SuppressWarnings("unchecked") |
| Enum value = Enum.valueOf(desiredClass, encodedObject.toString()); |
| return value; |
| } |
| |
| /** |
| * Decode an object. |
| * For the enum type, the createShell has already done the work, so we just |
| * return the shell itself. |
| * @param shell the shell object |
| * @param encodedObject the encodedObject |
| * @param desiredClass the desired class for decoded object |
| * @return Object the decoded object |
| */ |
| @Override |
| public Object decodeObject(Object shell, Object encodedObject, Class desiredClass) |
| { |
| return (shell == null || encodedObject == null)? null : shell; |
| } |
| } |