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1   /*
2    * Copyright (c) 2011.  The Apache Software Foundation
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package org.apache.expreval.expr.literal;
22  
23  import org.apache.expreval.expr.node.DateValue;
24  import org.apache.expreval.expr.node.GenericValue;
25  
26  import java.util.Date;
27  
28  public class DateLiteral extends GenericLiteral<Long> implements DateValue {
29  
30      private static long now = System.currentTimeMillis();
31  
32      public DateLiteral(final Date dateval) {
33          super(dateval.getTime());
34      }
35  
36      public DateLiteral(final Long value) {
37          super(value);
38      }
39  
40      public static long getNow() {
41          return now;
42      }
43  
44      public static void resetNow() {
45          now = System.currentTimeMillis();
46      }
47  
48      protected Class<? extends GenericValue> getReturnType() {
49          return DateValue.class;
50      }
51  
52      public String asString() {
53          return "\"" + String.format("%1$ta %1$tb %1$td %1$tT %1$tZ %1$tY", new Date(this.getValue(null, null))) + "\"";
54      }
55  }