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Posted to dev@turbine.apache.org by jm...@apache.org on 2001/09/21 20:59:47 UTC

cvs commit: jakarta-turbine-fulcrum/src/services/java/org/apache/fulcrum/intake/validator DateStringValidator.java

jmcnally    01/09/21 11:59:47

  Modified:    src/services/java/org/apache/fulcrum/intake/model
                        FieldFactory.java
  Added:       src/services/java/org/apache/fulcrum/intake/model
                        DateStringField.java
               src/services/java/org/apache/fulcrum/intake/validator
                        DateStringValidator.java
  Log:
  added a date validator.
  
  Revision  Changes    Path
  1.2       +10 -1     jakarta-turbine-fulcrum/src/services/java/org/apache/fulcrum/intake/model/FieldFactory.java
  
  Index: FieldFactory.java
  ===================================================================
  RCS file: /home/cvs/jakarta-turbine-fulcrum/src/services/java/org/apache/fulcrum/intake/model/FieldFactory.java,v
  retrieving revision 1.1
  retrieving revision 1.2
  diff -u -r1.1 -r1.2
  --- FieldFactory.java	2001/08/23 07:20:21	1.1
  +++ FieldFactory.java	2001/09/21 18:59:46	1.2
  @@ -63,7 +63,7 @@
    * Creates Field objects.
    *
    * @author <a href="mailto:jmcnally@collab.net>John McNally</a>
  - * @version $Id: FieldFactory.java,v 1.1 2001/08/23 07:20:21 jmcnally Exp $
  + * @version $Id: FieldFactory.java,v 1.2 2001/09/21 18:59:46 jmcnally Exp $
    */
   public abstract class FieldFactory
   {
  @@ -133,6 +133,15 @@
                       throws Exception
                   {
                       return new FileItemField(f, g);
  +                }
  +            }
  +                       );
  +        fieldCtors.put("DateString", new FieldFactory.FieldCtor()
  +            {
  +                public Field getInstance(XmlField f, Group g)
  +                    throws Exception
  +                {
  +                    return new DateStringField(f, g);
                   }
               }
                          );
  
  
  
  1.1                  jakarta-turbine-fulcrum/src/services/java/org/apache/fulcrum/intake/model/DateStringField.java
  
  Index: DateStringField.java
  ===================================================================
  package org.apache.fulcrum.intake.model;
  
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" and
   *    "Apache Turbine" must not be used to endorse or promote products
   *    derived from this software without prior written permission. For
   *    written permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    "Apache Turbine", nor may "Apache" appear in their name, without
   *    prior written permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  import java.util.Date;
  import java.text.DateFormat;
  import java.text.ParseException;
  import org.apache.fulcrum.intake.validator.DateStringValidator;
  import org.apache.fulcrum.intake.xmlmodel.Rule;
  import org.apache.fulcrum.intake.xmlmodel.XmlField;
  import org.apache.fulcrum.util.parser.ValueParser;
  
  /**  
   * Field for date inputs as free form text.  The parsing of date strings
   * is dependent on any rules that are defined, so this field will expect that
   * any validator will be (or extend) DateStringValidator. 
   */
  public class DateStringField extends Field
  {
      private DateFormat df = null; 
  
      public DateStringField(XmlField field, Group group)
          throws Exception
      {
          super(field, group);
          
          if ( validator == null ) 
          {
              df = DateFormat.getInstance();
              df.setLenient(true);
          }
      }
  
      /**
       * A suitable validator.
       *
       * @return "DateStringValidator"
       */
      protected String getDefaultValidator()
      {
          return "org.apache.fulcrum.intake.validator.DateStringValidator";
      }
  
      /**
       * converts the parameter to the correct Object.
       */
      protected void doSetValue(ValueParser pp)
      {        
          if ( isMultiValued  )
          {
              String[] ss = pp.getStrings(getKey());
              Date[] dates = new Date[ss.length];
              for (int i=0; i<ss.length; i++)
              {
                  dates[i] = getDate(ss[i]);
              }
              setTestValue(dates);
          }
          else
          {
              setTestValue( getDate(pp.getString(getKey())) );
          }
      }
  
      private Date getDate(String dateString)
      {
          Date date = null;
          try
          {
              if ( df == null ) // guarantees validator != null
              {
                  date = ((DateStringValidator)validator).parse(dateString);
              }
              else 
              {
                  date = df.parse(dateString);
              }
          }
          catch (ParseException e)
          {
              //ignore, return null
          }
          return date;
      }
  }
  
  
  
  1.1                  jakarta-turbine-fulcrum/src/services/java/org/apache/fulcrum/intake/validator/DateStringValidator.java
  
  Index: DateStringValidator.java
  ===================================================================
  package org.apache.fulcrum.intake.validator;
  
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" and
   *    "Apache Turbine" must not be used to endorse or promote products
   *    derived from this software without prior written permission. For
   *    written permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    "Apache Turbine", nor may "Apache" appear in their name, without
   *    prior written permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  import java.util.Date;
  import java.util.Map;
  import java.util.List;
  import java.util.ArrayList;
  import java.text.DateFormat;
  import java.text.SimpleDateFormat;
  import java.text.ParseException;
  import org.apache.fulcrum.ServiceException;
  
  /**
   * Validates numbers with the following constraints in addition to those
   * listed in DefaultValidator.
   *
   * <table>
   * <tr><th>Name</th><th>Valid Values</th><th>Default Value</th></tr>
   * <tr><td>format</td><td>see SimpleDateFormat javadoc</td>
   * <td>&nbsp;</td></tr>
   * <tr><td>formatx</td><td>see SimpleDateFormat javadoc</td>
   * <td>&nbsp;</td></tr>
   * <tr><td colspan=3>where x is &gt;= 0 to specify multiple date 
   *         formats.  Only one format rule should have a message</td></tr>
   * <tr><td>flexible</td><td>true, as long as DateFormat can parse the date, 
   *                            allow it, and false</td>
   * <td>false</td></tr>
   * </table>
   *
   * @author <a href="mailto:jmcnally@collab.net>John McNally</a>
   * @version $Id: DateStringValidator.java,v 1.1 2001/09/21 18:59:47 jmcnally Exp $
   */
  public class DateStringValidator
      extends DefaultValidator
  {
      private static final String DEFAULT_DATE_MESSAGE = 
          "Date could not be parsed";
  
      private List dateFormats;
      private String dateFormatMessage;
      private boolean flexible;
      private DateFormat df; 
      private SimpleDateFormat sdf;
  
  
      public DateStringValidator(Map paramMap)
          throws ServiceException
      {
          this();
          init(paramMap);
      }
  
      public DateStringValidator()
      {
          super();
      }
  
      protected void doInit(Map paramMap)
      {
          dateFormats = new ArrayList(5);
  
          Constraint constraint = (Constraint)paramMap.get("format");
          if ( constraint != null )
          {
              dateFormats.add(constraint.getValue());
              setDateFormatMessage(constraint.getMessage());
          }
  
          int i = 1;
          constraint = (Constraint)paramMap.get("format" + i);
          while ( constraint != null )
          {
              dateFormats.add(constraint.getValue());
              setDateFormatMessage(constraint.getMessage());
              constraint = (Constraint)paramMap.get("format" + (++i));
          }
  
          if ( dateFormatMessage == null || dateFormatMessage.equals("") ) 
          {
              dateFormatMessage = DEFAULT_DATE_MESSAGE;
          }
  
          constraint = (Constraint)paramMap.get("flexible");
          if ( constraint != null )
          {
              flexible = Boolean.valueOf(constraint.getValue()).booleanValue();
          }
  
          if ( dateFormats.size() == 0 || flexible ) 
          {
              df = DateFormat.getInstance();
              df.setLenient(true);
          }
          if (dateFormats.size() != 0)
          {
              sdf = new SimpleDateFormat();
          }
          
      }
  
  
      /**     
       * Determine whether a testValue meets the criteria specified
       * in the constraints defined for this validator
       *
       * @param testValue a <code>String</code> to be tested
       * @exception ValidationException containing an error message if the
       * testValue did not pass the validation tests.
       */
      protected void doAssertValidity(String testValue)
          throws ValidationException
      {
          try
          {
              parse(testValue);
          }
          catch (ParseException e)
          {
              message = dateFormatMessage;
              throw new ValidationException(dateFormatMessage);
          }
      }
  
      /**
       * Parses the String s according to the rules/formats for this
       * validator.
       */
      public Date parse(String s)
          throws ParseException
      {
          Date date = null;
  
          if ( s == null ) 
          {
              throw new ParseException("Input string was null", -1);
          }
  
          for ( int i=0; i<dateFormats.size(); i++) 
          {
              sdf.applyPattern((String)dateFormats.get(i));
              try
              {
                  date = sdf.parse(s);                
              }
              catch (ParseException e)
              {
                  // ignore
              }
              if ( date != null ) 
              {
                  break;
              }
          }
          
          if ( date == null && df != null ) 
          {
              date = df.parse(s);
          }
  
          return date;
      }
  
  
  
      // ************************************************************
      // **                Bean accessor methods                   **
      // ************************************************************
  
      /**
       * Get the value of minLengthMessage.
       * @return value of minLengthMessage.
       */
      public String getDateFormatMessage()
      {
          return dateFormatMessage;
      }
  
      /**
       * Only sets the message if the new message has some information.
       * So the last setMessage call with valid data wins.  But later calls
       * with null or empty string will not affect a previous valid setting.
       *
       * @param v  Value to assign to minLengthMessage.
       */
      public void setDateFormatMessage(String  v)
      {
          if ( v != null && !v.equals("") ) 
          {
              dateFormatMessage = v;
          }
      }
  
      /**
       * Get the value of dateFormats.
       * @return value of dateFormats.
       */
      public List getDateFormats() 
      {
          return dateFormats;
      }
      
      /**
       * Set the value of dateFormats.
       * @param v  Value to assign to dateFormats.
       */
      public void setDateFormats(List  v) 
      {
          this.dateFormats = v;
      }
      
      /**
       * Get the value of flexible.
       * @return value of flexible.
       */
      public boolean isFlexible() 
      {
          return flexible;
      }
      
      /**
       * Set the value of flexible.
       * @param v  Value to assign to flexible.
       */
      public void setFlexible(boolean  v) 
      {
          this.flexible = v;
      }
      
  }
  
  
  

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