Conditional


1   /*
2    * Copyright 2004 Outerthought bvba and Schaubroeck nv
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.outerj.daisy.frontend.util;
17  
18  /**
19   * This is an utility class to enable conditional expressions in JXTemplate.
20   */
21  public class Conditional {
22      public static String   when(Object   expr, Object   trueValue, Object   falseValue) {
23          if (expr != null && expr instanceof Boolean  ) {
24              return Boolean.TRUE.equals(expr) ? trueValue.toString() : falseValue.toString();
25          } else if (expr != null && expr instanceof String  ) {
26              return "true".equalsIgnoreCase((String  )expr) ? trueValue.toString() : falseValue.toString();
27          } else {
28              return falseValue.toString();
29          }
30      }
31  }
32

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