| // Copyright 2011 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry5.internal.plastic; |
| |
| import org.apache.tapestry5.plastic.MethodAdvice; |
| import org.apache.tapestry5.plastic.MethodDescription; |
| |
| import java.lang.reflect.Method; |
| |
| /** |
| * Bundles together the fixed (same for all instances) information needed by a {@link MethodInvocationBundle}. |
| */ |
| public class MethodInvocationBundle |
| { |
| public final String className; |
| |
| public final MethodDescription methodDescription; |
| |
| public final MethodAdvice[] advice; |
| |
| private volatile Method method; |
| |
| public MethodInvocationBundle(String className, MethodDescription methodDescription, MethodAdvice[] advice) |
| { |
| this.className = className; |
| this.methodDescription = methodDescription; |
| this.advice = advice; |
| } |
| |
| public Method getMethod(Object instance) |
| { |
| if (method == null) |
| method = findMethod(instance.getClass().getClassLoader()); |
| |
| return method; |
| } |
| |
| @SuppressWarnings("unchecked") |
| private Method findMethod(ClassLoader loader) |
| { |
| try |
| { |
| Class[] types = new Class[methodDescription.argumentTypes.length]; |
| |
| for (int i = 0; i < types.length; i++) |
| { |
| types[i] = PlasticInternalUtils.toClass(loader, methodDescription.argumentTypes[i]); |
| } |
| |
| Class clazz = PlasticInternalUtils.toClass(loader, className); |
| |
| return clazz.getDeclaredMethod(methodDescription.methodName, types); |
| } catch (Exception ex) |
| { |
| throw new RuntimeException(String.format("Unable to locate Method %s: %s", methodDescription, |
| PlasticInternalUtils.toMessage(ex)), ex); |
| } |
| } |
| |
| } |