/*

  * 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 org.apache.commons.flatfile.dsl;

 import org.apache.commons.lang.ClassUtils;

 /**

  * Default implementation.

  * @version $Revision: 757266 $ $Date: 2009-03-22 17:12:27 -0500 (Sun, 22 Mar 2009) $

  */

 public class DefaultEntityNameStrategy implements EntityNameStrategy {

     private static final String NULL = "null";

     /**

      * If <code>o</code> is a <code>String</code>, it returns unscathed.

      * If <code>o</code> is <code>null</code>, returns <code>"null"</code>.

      * If <code>o</code> is a <code>Class</code>, returns simple classname.

      * Otherwise returns simple classname of <code>o</code>.

      * @param o Object.

      * @return String entity name.

      */

     @SuppressWarnings("unchecked")

     public String getEntityName(Object o) {

         if (o == null) {

             return NULL;

         }

         if (o instanceof String) {

             return (String) o;

         }

         Class c = o instanceof Class ? (Class) o : o.getClass();

         StringBuffer sb = new StringBuffer(ClassUtils.getShortClassName(c));

         sb.setCharAt(0, Character.toLowerCase(sb.charAt(0)));

         return sb.toString();

     }

 }