Coverage report

  %line %branch
org.apache.jetspeed.util.ArgUtil
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 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.jetspeed.util;
 18   
 
 19   
 /**
 20   
  * <p>
 21   
  * ArgUtil
 22   
  * </p>
 23   
  *
 24   
  * Misc. utilities for rudimentary argument validation
 25   
  *
 26   
  * @author <a href="mailto:weaver@apache.org">Scott T. Weaver</a>
 27   
  * @version $Id: ArgUtil.java 516448 2007-03-09 16:25:47Z ate $
 28   
  *
 29   
  */
 30  0 
 public final class ArgUtil
 31   
 {
 32   
     private static final String MSG_1 = "Argument \"";
 33   
     private static final String MSG_2 = "\" cannot be null for method ";
 34   
 
 35   
     /**
 36   
      *
 37   
      * @throws java.lang.IllegalArgumentException If ANY of the arguments are <code>null</code>
 38   
      * @param args array of arguments to validate as not nul
 39   
      * @param argNames array of arguments names, idexes should match with args.
 40   
      * @param methodName Name of method we are validating arguments for.
 41   
      */
 42   
     public static void notNull(Object[] args, String[] argNames, String methodName)
 43   
     {
 44  0 
         for (int i = 0; i < args.length; i++)
 45   
         {
 46  0 
             Object arg = args[i];
 47  0 
             if (arg == null)
 48   
             {
 49  0 
                 StringBuffer buf = new StringBuffer(150);
 50  0 
                 String argName = null;
 51  0 
                 if (i < argNames.length)
 52   
                 {
 53  0 
                     argName = argNames[i];
 54   
                 }
 55   
                 else
 56   
                 {
 57  0 
                     argName = String.valueOf(i);
 58   
                 }
 59   
 
 60  0 
                 buf.append(MSG_1 + argName + MSG_2 + methodName);
 61  0 
                 throw new IllegalArgumentException(buf.toString());
 62   
             }
 63   
         }
 64  0 
     }
 65   
 
 66   
     /**
 67   
      *
 68   
      * <p>
 69   
      * notNull
 70   
      * </p>
 71   
      *
 72   
      * @param nonNullObject
 73   
      * @param thisObject
 74   
      * @throws IllegalArgumentException
 75   
      */
 76   
     public static final void assertNotNull(Class nonNullClass, Object nonNullObject, Object thisObject) throws IllegalArgumentException
 77   
     {
 78  0 
         if(nonNullObject == null)
 79   
         {
 80  0 
             throw new IllegalArgumentException(thisObject.getClass().getName()+" requires a non-null "+nonNullClass.getName()+" as an argument.");
 81   
         }
 82  0 
     }
 83   
 
 84   
     public static final void assertNotNull(Class nonNullClass, Object nonNullObject, Object thisObject, String methodName) throws IllegalArgumentException
 85   
     {
 86  0 
         if(nonNullObject == null)
 87   
         {
 88  0 
             throw new IllegalArgumentException(thisObject.getClass().getName()+"."+methodName+" requires a non-null "+nonNullClass.getName()+" as an argument.");
 89   
         }
 90  0 
     }
 91   
 
 92   
     public static final void assertPropertyNotNull(Object nonNullObject, Object thisObject, String methodName, String property) throws IllegalArgumentException
 93   
     {
 94  0 
         if(nonNullObject == null)
 95   
         {
 96  0 
             throw new IllegalStateException(thisObject.getClass().getName()+"."+methodName+" cannot be invoked until the property "+property+" has been set.");
 97   
         }
 98  0 
     }
 99   
 }

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