qadevOOo/runner/lib/DynamicClassLoader.java

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  27
  28 package lib ;
  29
  30 import java.lang.reflect.Constructor;
  31
  32 /**
  33  * @deprecated: moved to util package.
  34  */
  35 public class DynamicClassLoader {
  36
  37     /**
  38     * This method returns a class created by it's name
  39     * created by call to <code>Class.forName()</code>.<p>
  40     * This method must be overloaded if another loading
  41     * policy is required for Component and Interface
  42     * testing classes.
  43     */
  44     public static Class forName(String className)
  45         throws ClassNotFoundException {
  46
  47         return Class.forName(className) ;
  48     }
  49
  50         public Object getInstance(String className)
  51                                             throws IllegalArgumentException {
  52             try {
  53                 Class cls = DynamicClassLoader.forName(className);
  54                 return cls.newInstance();
  55             } catch ( ClassNotFoundException e ) {
  56                 throw new IllegalArgumentException("Couldn't find " + className
  57                         + " " + e);
  58             } catch ( IllegalAccessException e ) {
  59                 throw new IllegalArgumentException("Couldn't access " + className
  60                         + " " + e);
  61             } catch ( InstantiationException e ) {
  62                 throw new IllegalArgumentException("Couldn't instantiate " +
  63                                 className + " " + e);
  64             }
  65         }
  66
  67         public Object getInstance(String className, Object[] ctorArgs)
  68                                             throws IllegalArgumentException {
  69             try {
  70                 Class cls = DynamicClassLoader.forName(className);
  71                 Class[] ctorType = new Class[ctorArgs.length];
  72                 for(int i=0; i<ctorType.length; i++) {
  73                     ctorType[i] = ctorArgs[i].getClass();
  74                 }
  75                 Constructor ctor = cls.getConstructor(ctorType);
  76                 return ctor.newInstance(ctorArgs);
  77             } catch ( ClassNotFoundException e ) {
  78                 throw new IllegalArgumentException("Couldn't find " + className
  79                         + " " + e);
  80             } catch ( IllegalAccessException e ) {
  81                 throw new IllegalArgumentException("Couldn't access " + className
  82                         + " " + e);
  83             } catch ( NoSuchMethodException e ) {
  84                 throw new IllegalArgumentException("Couldn't find constructor for " + className
  85                         + " " + e);
  86             } catch ( java.lang.reflect.InvocationTargetException e ) {
  87                 throw new IllegalArgumentException("Couldn't invoke " +
  88                                 className + " " + e);
  89             } catch ( InstantiationException e ) {
  90                 throw new IllegalArgumentException("Couldn't instantiate " +
  91                                 className + " " + e);
  92             }
  93         }
  94 }