Clover coverage report - Code Coverage for tapestry release 4.0-alpha-3
Coverage timestamp: Mon May 16 2005 09:05:49 EDT
file stats: LOC: 127   Methods: 7
NCLOC: 53   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
QueryParameterMap.java 100% 100% 100% 100%
coverage
 1   
 // Copyright 2004, 2005 The Apache Software Foundation
 2   
 //
 3   
 // Licensed under the Apache License, Version 2.0 (the "License");
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 // 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.util;
 16   
 
 17   
 import java.util.Arrays;
 18   
 import java.util.HashMap;
 19   
 import java.util.Map;
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 21   
 import org.apache.hivemind.util.Defense;
 22   
 
 23   
 /**
 24   
  * A wrapper around a Map that stores query parameter values. Map keys are strings. Map values can
 25   
  * be simple strings or array of string (or null).
 26   
  * 
 27   
  * @author Howard M. Lewis Ship
 28   
  * @since 4.0
 29   
  */
 30   
 public class QueryParameterMap
 31   
 {
 32   
     private final Map _parameters;
 33   
 
 34  159
     public QueryParameterMap()
 35   
     {
 36  159
         this(new HashMap());
 37   
     }
 38   
 
 39   
     /**
 40   
      * Constructor around an existing Map whose keys and values are expected to conform expected use
 41   
      * (keys are strings, values are null, string or string array). The map passed in is retained (
 42   
      * not copied).
 43   
      */
 44   
 
 45  614
     public QueryParameterMap(Map parameterMap)
 46   
     {
 47  614
         Defense.notNull(parameterMap, "parameterMap");
 48   
 
 49  614
         _parameters = parameterMap;
 50   
     }
 51   
 
 52   
     /**
 53   
      * Replaces the parameter value for the given name wit the new value (which may be null).
 54   
      */
 55   
 
 56  449
     public void setParameterValue(String name, String value)
 57   
     {
 58  449
         Defense.notNull(name, "name");
 59   
 
 60  449
         _parameters.put(name, value);
 61   
     }
 62   
 
 63   
     /**
 64   
      * Replaces the parameter value for the given name wit the new list of values (which may be
 65   
      * empty or null).
 66   
      */
 67   
 
 68  21
     public void setParameterValues(String name, String[] values)
 69   
     {
 70  21
         Defense.notNull(name, "name");
 71   
 
 72  21
         _parameters.put(name, values);
 73   
     }
 74   
 
 75   
     /**
 76   
      * Gets a query parameter value. If an array of values was stored, this returns the first value.
 77   
      * May return null.
 78   
      */
 79   
 
 80  602
     public String getParameterValue(String name)
 81   
     {
 82  602
         Defense.notNull(name, "name");
 83   
 
 84  602
         Object values = _parameters.get(name);
 85   
 
 86  602
         if (values == null || values instanceof String)
 87  601
             return (String) values;
 88   
 
 89  1
         String[] array = (String[]) values;
 90   
 
 91  1
         return array[0];
 92   
     }
 93   
 
 94   
     /**
 95   
      * Returns the array of values for the specified parameter. If only a lone value was stored (via
 96   
      * {@link #setParameterValue(String, String)}, then the value is wrapped as a string array and
 97   
      * returned.
 98   
      */
 99  1011
     public String[] getParameterValues(String name)
 100   
     {
 101  1011
         Defense.notNull(name, "name");
 102   
 
 103  1011
         Object values = _parameters.get(name);
 104   
 
 105  1011
         if (values == null || values instanceof String[])
 106  365
             return (String[]) values;
 107   
 
 108  646
         String loneValue = (String) values;
 109   
 
 110  646
         return new String[]
 111   
         { loneValue };
 112   
     }
 113   
 
 114   
     /**
 115   
      * Returns the names of all parameters, sorted alphabetically.
 116   
      */
 117  231
     public String[] getParameterNames()
 118   
     {
 119  231
         int count = _parameters.size();
 120   
 
 121  231
         String[] result = (String[]) _parameters.keySet().toArray(new String[count]);
 122   
 
 123  231
         Arrays.sort(result);
 124   
 
 125  231
         return result;
 126   
     }
 127   
 }