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1 /*
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2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
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3
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4 Permission is hereby granted, free of charge, to any person obtaining a copy
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5 of this software and associated documentation files (the "Software"), to deal
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6 in the Software without restriction, including without limitation the rights
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7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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8 copies of the Software, and to permit persons to whom the Software is
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9 furnished to do so, subject to the following conditions:
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10
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11 The above copyright notice and this permission notice shall be included in
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12 all copies or substantial portions of the Software.
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13
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14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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20 THE SOFTWARE.
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21 */
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22
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23 package fschmidt.util.java;
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24
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25 import java.lang.reflect.InvocationHandler;
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26 import java.lang.reflect.InvocationTargetException;
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27 import java.lang.reflect.Method;
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28 import java.lang.reflect.Proxy;
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29
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30
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31 public class ProxyClass<T> implements InvocationHandler {
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32 protected final T obj;
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33 private final Class<T> cls;
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34
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35 protected ProxyClass(T obj,Class<T> cls) {
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36 this.obj = obj;
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37 this.cls = cls;
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38 }
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39
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40 public Object invoke(Method method, Object[] args)
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41 throws Throwable
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42 {
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43 try {
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44 return method.invoke(obj,args);
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45 } catch (InvocationTargetException e) {
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46 throw e.getTargetException();
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47 }
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48 }
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49
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50 public Object invoke(Object proxy,Method method, Object[] args)
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51 throws Throwable
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52 {
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53 return invoke(method,args);
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54 }
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55
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56 public T newInstance() {
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57 @SuppressWarnings("unchecked")
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58 T rtn = (T)Proxy.newProxyInstance(
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59 cls.getClassLoader(),
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60 new Class[]{cls},
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61 this
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62 );
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63 return rtn;
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64 }
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65
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66 }
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