Coverage Report - org.apache.tapestry.form.translator.FormatTranslator
 
Classes in this File Line Coverage Branch Coverage Complexity
FormatTranslator
0%
0/18
0%
0/2
1.364
 
 1  
 // Copyright 2005 The Apache Software Foundation
 2  
 //
 3  
 // Licensed under the Apache License, Version 2.0 (the "License");
 4  
 // you may not use this file except in compliance with the License.
 5  
 // You may obtain a copy of the License at
 6  
 //
 7  
 //     http://www.apache.org/licenses/LICENSE-2.0
 8  
 //
 9  
 // Unless required by applicable law or agreed to in writing, software
 10  
 // distributed under the License is distributed on an "AS IS" BASIS,
 11  
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12  
 // See the License for the specific language governing permissions and
 13  
 // limitations under the License.
 14  
 
 15  
 package org.apache.tapestry.form.translator;
 16  
 
 17  
 import org.apache.hivemind.HiveMind;
 18  
 import org.apache.hivemind.util.PropertyUtils;
 19  
 import org.apache.tapestry.form.IFormComponent;
 20  
 import org.apache.tapestry.form.ValidationMessages;
 21  
 import org.apache.tapestry.valid.ValidationConstraint;
 22  
 import org.apache.tapestry.valid.ValidatorException;
 23  
 
 24  
 import java.text.Format;
 25  
 import java.text.ParseException;
 26  
 import java.util.Locale;
 27  
 
 28  
 /**
 29  
  * Abstract {@link Translator} implementation for {@link java.text.Format}-based translators.
 30  
  * 
 31  
  * @author Paul Ferraro
 32  
  * @since 4.0
 33  
  */
 34  
 public abstract class FormatTranslator extends AbstractTranslator
 35  
 {
 36  
     private String _pattern;
 37  
 
 38  
     public FormatTranslator()
 39  0
     {
 40  0
         _pattern = defaultPattern();
 41  0
     }
 42  
 
 43  
     //TODO: Needed until HIVEMIND-134 fix is available
 44  
     public FormatTranslator(String initializer)
 45  0
     {
 46  0
         PropertyUtils.configureProperties(this, initializer);
 47  
         
 48  0
         if (HiveMind.isBlank(_pattern))
 49  
         {
 50  0
             _pattern = defaultPattern();
 51  
         }
 52  0
     }
 53  
     
 54  
     protected abstract String defaultPattern();
 55  
 
 56  
     /**
 57  
      * @see org.apache.tapestry.form.translator.AbstractTranslator#formatObject(org.apache.tapestry.form.IFormComponent,
 58  
      *      Locale, java.lang.Object)
 59  
      */
 60  
     protected String formatObject(IFormComponent field, Locale locale, Object object)
 61  
     {
 62  
         // Get a new format each time, because (a) have to account for locale and (b) formatters are
 63  
         // not thread safe.
 64  
 
 65  0
         Format format = getFormat(locale);
 66  
 
 67  0
         return format.format(object);
 68  
     }
 69  
 
 70  
     /**
 71  
      * @see org.apache.tapestry.form.translator.AbstractTranslator#parseText(org.apache.tapestry.form.IFormComponent,
 72  
      *      ValidationMessages, java.lang.String)
 73  
      */
 74  
     protected Object parseText(IFormComponent field, ValidationMessages messages, String text)
 75  
             throws ValidatorException
 76  
     {
 77  0
         Format format = getFormat(messages.getLocale());
 78  
         
 79  
         try
 80  
         {
 81  0
             return format.parseObject(text);
 82  
         }
 83  0
         catch (ParseException ex)
 84  
         {
 85  0
             throw new ValidatorException(buildMessage(messages, field, getMessageKey()),
 86  
                     getConstraint());
 87  
         }
 88  
     }
 89  
 
 90  
     protected abstract ValidationConstraint getConstraint();
 91  
 
 92  
     protected abstract Format getFormat(Locale locale);
 93  
 
 94  
     protected abstract String getMessageKey();
 95  
 
 96  
     public String getPattern()
 97  
     {
 98  0
         return _pattern;
 99  
     }
 100  
 
 101  
     public void setPattern(String pattern)
 102  
     {
 103  0
         _pattern = pattern;
 104  0
     }
 105  
 
 106  
     /**
 107  
      * Gets the pattern encapsulated by this translator, subclasses may optionally use the
 108  
      * passed in {@link Locale} to return patterns specific to that locale.
 109  
      * 
 110  
      * @param locale The locale to use to format the pattern, if applicable.
 111  
      * @return The pattern used to format/parse objects.
 112  
      */
 113  
     public String getPattern(Locale locale)
 114  
     {
 115  0
         return _pattern;
 116  
     }
 117  
 }