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1   /*
2    * Copyright 2006-2007 the original author or authors.
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  
17  package org.springframework.batch.sample.domain.order.internal.valang;
18  
19  import java.util.Date;
20  
21  import org.springmodules.validation.valang.functions.AbstractFunction;
22  import org.springmodules.validation.valang.functions.Function;
23  
24  
25  /**
26   * Returns Boolean.TRUE if given value is future date, else it returns Boolean.FALSE
27   * @author peter.zozom
28   */
29  public class FutureDateFunction extends AbstractFunction {
30  
31      public FutureDateFunction(Function[] arguments, int line, int column) {
32          super(arguments, line, column);
33          definedExactNumberOfArguments(1);
34      }
35  
36      /**
37       * @see org.springmodules.validation.valang.functions.AbstractFunction#doGetResult(java.lang.Object)
38       */
39      protected Object doGetResult(final Object target) throws Exception {
40          //get argument
41          final Object value = getArguments()[0].getResult(target);
42  
43          Boolean result;
44  
45          if (value instanceof Date) {
46              final Date now = new Date(System.currentTimeMillis());
47              final Date date = (Date) value;
48              result = (now.compareTo(date) < 0) ? Boolean.TRUE : Boolean.FALSE;
49          } else {
50              throw new Exception("No Date value for validation");
51          }
52  
53          return result;
54      }
55  }