/**

  * Copyright 2005-2011 The Kuali Foundation

  *

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  *

  * 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.kuali.rice.krad.uif.util;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.util.type.TypeUtils;

 import java.util.List;

 import java.util.Map;

 import java.util.Set;

 /**

  * Utility class for generating JavaScript

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class ScriptUtils {

     /**

      * Translates an Object to a String for representing the given Object as

      * a JavaScript value

      *

      * <p>

      * Handles null, List, Map, and Set collections, along with non quoting for numeric and

      * boolean types. Complex types are treated as a String value using toString

      * </p>

      *

      * @param value - Object instance to translate

      * @return String JS value

      */

     public static String translateValue(Object value) {

         String jsValue = "";

         if (value == null) {

             jsValue = "null";

             return jsValue;

         }

         if (value instanceof List) {

             jsValue = "[";

             List<Object> list = (List<Object>) value;

             for (Object listItem : list) {

                 jsValue += translateValue(listItem);

                 jsValue += ",";

             }

             jsValue = StringUtils.removeEnd(jsValue, ",");

             jsValue += "]";

         } else if (value instanceof Set) {

             jsValue = "[";

             Set<Object> set = (Set<Object>) value;

             for (Object setItem : set) {

                 jsValue += translateValue(setItem);

                 jsValue += ",";

             }

             jsValue = StringUtils.removeEnd(jsValue, ",");

             jsValue += "]";

         } else if (value instanceof Map) {

             jsValue = "{";

             Map<Object, Object> map = (Map<Object, Object>) value;

             for (Map.Entry<Object, Object> mapEntry : map.entrySet()) {

                 jsValue += mapEntry.getKey().toString() + ":";

                 jsValue += translateValue(mapEntry.getValue());

                 jsValue += ",";

             }

             jsValue = StringUtils.removeEnd(jsValue, ",");

             jsValue += "}";

         } else {

             boolean quoteValue = true;

             Class<?> valueClass = value.getClass();

             if (TypeUtils.isBooleanClass(valueClass) || TypeUtils.isDecimalClass(valueClass) || TypeUtils

                     .isIntegralClass(valueClass)) {

                 quoteValue = false;

             }

             if (quoteValue) {

                 jsValue = "\"";

             }

             // TODO: should this go through property editors?

             jsValue += value.toString();

             if (quoteValue) {

                 jsValue += "\"";

             }

         }

         return jsValue;

     }

 }