Coverage report

  %line %branch
org.apache.commons.validator.util.ValidatorUtils
30% 
58% 

 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.commons.validator.util;
 18  
 
 19  
 import java.lang.reflect.InvocationTargetException;
 20  
 import java.util.Collection;
 21  
 import java.util.HashMap;
 22  
 import java.util.Iterator;
 23  
 import java.util.Map;
 24  
 
 25  
 import org.apache.commons.beanutils.PropertyUtils;
 26  
 import org.apache.commons.collections.FastHashMap;
 27  
 import org.apache.commons.logging.Log;
 28  
 import org.apache.commons.logging.LogFactory;
 29  
 import org.apache.commons.validator.Arg;
 30  
 import org.apache.commons.validator.Msg;
 31  
 import org.apache.commons.validator.Var;
 32  
 
 33  
 /**
 34  
  * Basic utility methods.
 35  
  * <p>
 36  
  * The use of FastHashMap is deprecated and will be replaced in a future
 37  
  * release.
 38  
  * </p>
 39  
  *
 40  
  * @version $Revision: 478334 $ $Date: 2006-11-22 21:31:54 +0000 (Wed, 22 Nov 2006) $
 41  
  */
 42  0
 public class ValidatorUtils {
 43  
 
 44  
     /**
 45  
      * <p>Replace part of a <code>String</code> with another value.</p>
 46  
      *
 47  
      * @param value <code>String</code> to perform the replacement on.
 48  
      * @param key The name of the constant.
 49  
      * @param replaceValue The value of the constant.
 50  
      *
 51  
      * @return The modified value.
 52  
      */
 53  
     public static String replace(String value, String key, String replaceValue) {
 54  
 
 55  180
         if (value == null || key == class="keyword">null || replaceValue == class="keyword">null) {
 56  0
             return value;
 57  
         }
 58  
 
 59  180
         int pos = value.indexOf(key);
 60  
 
 61  180
         if (pos < 0) {
 62  140
             return value;
 63  
         }
 64  
 
 65  40
         int length = value.length();
 66  40
         int start = pos;
 67  40
         int end = pos + key.length();
 68  
 
 69  40
         if (length == key.length()) {
 70  40
             value = replaceValue;
 71  
 
 72  0
         } else if (end == length) {
 73  0
             value = value.substring(0, start) + replaceValue;
 74  
 
 75  
         } else {
 76  0
             value =
 77  
                     value.substring(0, start)
 78  
                     + replaceValue
 79  
                     + replace(value.substring(end), key, replaceValue);
 80  
         }
 81  
 
 82  40
         return value;
 83  
     }
 84  
 
 85  
     /**
 86  
      * Convenience method for getting a value from a bean property as a
 87  
      * <code>String</code>.  If the property is a <code>String[]</code> or
 88  
      * <code>Collection</code> and it is empty, an empty <code>String</code>
 89  
      * "" is returned.  Otherwise, property.toString() is returned.  This method
 90  
      * may return <code>null</code> if there was an error retrieving the
 91  
      * property.
 92  
      *
 93  
      * @param bean The bean object.
 94  
      * @param property The name of the property to access.
 95  
      *
 96  
      * @return The value of the property.
 97  
      */
 98  
     public static String getValueAsString(Object bean, String property) {
 99  175
         Object value = null;
 100  
 
 101  
         try {
 102  175
             value = PropertyUtils.getProperty(bean, property);
 103  
 
 104  175
         } catch(IllegalAccessException e) {
 105  0
             Log log = LogFactory.getLog(ValidatorUtils.class);
 106  0
             log.error(e.getMessage(), e);
 107  0
         } catch(InvocationTargetException e) {
 108  0
             Log log = LogFactory.getLog(ValidatorUtils.class);
 109  0
             log.error(e.getMessage(), e);
 110  0
         } catch(NoSuchMethodException e) {
 111  0
             Log log = LogFactory.getLog(ValidatorUtils.class);
 112  0
             log.error(e.getMessage(), e);
 113  
         }
 114  
 
 115  175
         if (value == null) {
 116  34
             return null;
 117  
         }
 118  
 
 119  141
         if (value instanceof String[]) {
 120  0
             return ((String[]) value).length > 0 ? value.toString() : "";
 121  
 
 122  141
         } else if (value instanceof Collection) {
 123  0
             return ((Collection) value).isEmpty() ? "" : value.toString();
 124  
 
 125  
         } else {
 126  141
             return value.toString();
 127  
         }
 128  
 
 129  
     }
 130  
 
 131  
     /**
 132  
      * Makes a deep copy of a <code>FastHashMap</code> if the values
 133  
      * are <code>Msg</code>, <code>Arg</code>,
 134  
      * or <code>Var</code>.  Otherwise it is a shallow copy.
 135  
      *
 136  
      * @param map <code>FastHashMap</code> to copy.
 137  
      * @return FastHashMap A copy of the <code>FastHashMap</code> that was
 138  
      * passed in.
 139  
      * @deprecated This method is not part of Validator's public API.  Validator
 140  
      * will use it internally until FastHashMap references are removed.  Use
 141  
      * copyMap() instead.
 142  
      */
 143  
     public static FastHashMap copyFastHashMap(FastHashMap map) {
 144  0
         FastHashMap results = new FastHashMap();
 145  
 
 146  0
         Iterator i = map.keySet().iterator();
 147  0
         while (i.hasNext()) {
 148  0
             String key = (String) i.next();
 149  0
             Object value = map.get(key);
 150  
 
 151  0
             if (value instanceof Msg) {
 152  0
                 results.put(key, ((Msg) value).clone());
 153  0
             } else if (value instanceof Arg) {
 154  0
                 results.put(key, ((Arg) value).clone());
 155  0
             } else if (value instanceof Var) {
 156  0
                 results.put(key, ((Var) value).clone());
 157  
             } else {
 158  0
                 results.put(key, value);
 159  
             }
 160  
         }
 161  
 
 162  0
         results.setFast(true);
 163  0
         return results;
 164  
     }
 165  
     
 166  
     /**
 167  
      * Makes a deep copy of a <code>Map</code> if the values are 
 168  
      * <code>Msg</code>, <code>Arg</code>, or <code>Var</code>.  Otherwise, 
 169  
      * it is a shallow copy.
 170  
      *
 171  
      * @param map The source Map to copy.
 172  
      *
 173  
      * @return A copy of the <code>Map</code> that was passed in.
 174  
      */
 175  
     public static Map copyMap(Map map) {
 176  0
         Map results = new HashMap();
 177  
 
 178  0
         Iterator iter = map.keySet().iterator();
 179  0
         while (iter.hasNext()) {
 180  0
             String key = (String) iter.next();
 181  0
             Object value = map.get(key);
 182  
 
 183  0
             if (value instanceof Msg) {
 184  0
                 results.put(key, ((Msg) value).clone());
 185  0
             } else if (value instanceof Arg) {
 186  0
                 results.put(key, ((Arg) value).clone());
 187  0
             } else if (value instanceof Var) {
 188  0
                 results.put(key, ((Var) value).clone());
 189  
             } else {
 190  0
                 results.put(key, value);
 191  
             }
 192  
         }
 193  0
         return results;
 194  
     }
 195  
 
 196  
 }

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