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1   package org.apache.maven.continuum.web.validator;
2   
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,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import com.opensymphony.xwork2.validator.ValidationException;
23  import com.opensymphony.xwork2.validator.ValidatorContext;
24  import com.opensymphony.xwork2.validator.validators.ValidatorSupport;
25  
26  /**
27   * Validator class for the cron expression in the continuum schedules.
28   */
29  public class CronExpressionValidator
30      extends ValidatorSupport
31  {
32  
33      public void validate( Object object )
34          throws ValidationException
35      {
36          String second = (String) getFieldValue( "second", object );
37          String minute = (String) getFieldValue( "minute", object );
38          String hour = (String) getFieldValue( "hour", object );
39          String dayOfMonth = (String) getFieldValue( "dayOfMonth", object );
40          String month = (String) getFieldValue( "month", object );
41          String dayOfWeek = (String) getFieldValue( "dayOfWeek", object );
42          String year = (String) getFieldValue( "year", object );
43  
44          String cronExpression =
45              ( second + " " + minute + " " + hour + " " + dayOfMonth + " " + month + " " + dayOfWeek + " " +
46                  year ).trim();
47  
48          org.codehaus.plexus.scheduler.CronExpressionValidator validator =
49              new org.codehaus.plexus.scheduler.CronExpressionValidator();
50  
51          ValidatorContext ctxt = getValidatorContext();
52  
53          if ( !validator.validate( cronExpression ) )
54          {
55              // FIXME i18n
56              ctxt.addActionError( "Invalid cron expression value(s)" );
57          }
58      }
59  
60  }