Clover coverage report - Code Coverage for hivemind release 1.1-alpha-2
Coverage timestamp: Wed Feb 23 2005 09:59:04 EST
file stats: LOC: 175   Methods: 9
NCLOC: 70   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
HiveMind.java 88.9% 93.1% 88.9% 91.1%
coverage coverage
 1   
 // Copyright 2004, 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.hivemind;
 16   
 
 17   
 import java.util.Collection;
 18   
 
 19   
 /**
 20   
  * Static utility class for HiveMind.
 21   
  * 
 22   
  * @author Howard Lewis Ship
 23   
  */
 24   
 public final class HiveMind
 25   
 {
 26   
     /**
 27   
      * The full id of the {@link org.apache.hivemind.service.ThreadEventNotifier}service.
 28   
      */
 29   
     public static final String THREAD_EVENT_NOTIFIER_SERVICE = "hivemind.ThreadEventNotifier";
 30   
 
 31   
     /**
 32   
      * The full id of the {@link org.apache.hivemind.service.ThreadLocale}service.
 33   
      * 
 34   
      * @since 1.1
 35   
      */
 36   
 
 37   
     public static final String THREAD_LOCALE_SERVICE = "hivemind.ThreadLocale";
 38   
 
 39   
     /**
 40   
      * The full id of the {@link org.apache.hivemind.service.InterfaceSynthesizer}service.
 41   
      * 
 42   
      * @since 1.1
 43   
      */
 44   
 
 45   
     public static final String INTERFACE_SYNTHESIZER_SERVICE = "hivemind.InterfaceSynthesizer";
 46   
 
 47   
     /**
 48   
      * An object used to synchronize access to {@link java.beans.Introspector}(which is not fully
 49   
      * threadsafe).
 50   
      * 
 51   
      * @since 1.1
 52   
      */
 53   
 
 54   
     public static final Object INTROSPECTOR_MUTEX = new Object();
 55   
 
 56  0
     private HiveMind()
 57   
     {
 58   
         // Prevent instantiation
 59   
     }
 60   
 
 61  8
     public static ApplicationRuntimeException createRegistryShutdownException()
 62   
     {
 63  8
         return new ApplicationRuntimeException(HiveMindMessages.registryShutdown());
 64   
     }
 65   
 
 66   
     /**
 67   
      * Selects the first {@link Location}in an array of objects. Skips over nulls. The objects may
 68   
      * be instances of Location or {@link Locatable}. May return null if no Location can be found.
 69   
      */
 70   
 
 71  133
     public static Location findLocation(Object[] locations)
 72   
     {
 73  133
         for (int i = 0; i < locations.length; i++)
 74   
         {
 75  351
             Object location = locations[i];
 76   
 
 77  351
             Location result = getLocation(location);
 78   
 
 79  351
             if (result != null)
 80  26
                 return result;
 81   
 
 82   
         }
 83   
 
 84  107
         return null;
 85   
     }
 86   
 
 87   
     /**
 88   
      * Extracts a location from an object, checking to see if it implement {@link Location}&nbsp;or
 89   
      * {@link Locatable}.
 90   
      * 
 91   
      * @return the Location, or null if it can't be found
 92   
      */
 93  364
     public static Location getLocation(Object object)
 94   
     {
 95  364
         if (object == null)
 96  279
             return null;
 97   
 
 98  85
         if (object instanceof Location)
 99  19
             return (Location) object;
 100   
 
 101  66
         if (object instanceof Locatable)
 102   
         {
 103  14
             Locatable locatable = (Locatable) object;
 104   
 
 105  14
             return locatable.getLocation();
 106   
         }
 107   
 
 108  52
         return null;
 109   
     }
 110   
 
 111   
     /**
 112   
      * Invokes {@link #getLocation(Object)}, then translate the result to a string value, or
 113   
      * "unknown location" if null.
 114   
      */
 115  4
     public static String getLocationString(Object object)
 116   
     {
 117  4
         Location l = getLocation(object);
 118   
 
 119  4
         if (l != null)
 120  0
             return l.toString();
 121   
 
 122  4
         return HiveMindMessages.unknownLocation();
 123   
     }
 124   
 
 125   
     /**
 126   
      * Returns true if the string is null, empty, or contains only whitespace.
 127   
      * <p>
 128   
      * The commons-lang library provides a version of this, but the naming and behavior changed
 129   
      * between 1.0 and 2.0, which causes some dependency issues.
 130   
      */
 131  57040
     public static boolean isBlank(String string)
 132   
     {
 133  57040
         if (string == null || string.length() == 0)
 134  54001
             return true;
 135   
 
 136  3039
         if (string.trim().length() == 0)
 137  0
             return true;
 138   
 
 139  3039
         return false;
 140   
     }
 141   
 
 142   
     /**
 143   
      * As with {@link #isBlank(String)}, but inverts the response.
 144   
      */
 145  61
     public static boolean isNonBlank(String string)
 146   
     {
 147  61
         return !isBlank(string);
 148   
     }
 149   
 
 150   
     /**
 151   
      * Updates the location of an object, if the object implements {@link LocationHolder}.
 152   
      * 
 153   
      * @param holder
 154   
      *            the object to be updated
 155   
      * @param location
 156   
      *            the location to assign to the holder object
 157   
      */
 158  43996
     public static void setLocation(Object holder, Location location)
 159   
     {
 160  43996
         if (holder != null && holder instanceof LocationHolder)
 161   
         {
 162  42116
             LocationHolder lh = (LocationHolder) holder;
 163   
 
 164  42116
             lh.setLocation(location);
 165   
         }
 166   
     }
 167   
 
 168   
     /**
 169   
      * Returns true if the Collection is null or empty.
 170   
      */
 171  794
     public static boolean isEmpty(Collection c)
 172   
     {
 173  794
         return c == null || c.isEmpty();
 174   
     }
 175   
 }