001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.servicemix.cxfse.support;
018    
019    import java.lang.annotation.Annotation;
020    import java.lang.reflect.Field;
021    import java.lang.reflect.InvocationTargetException;
022    import java.lang.reflect.Method;
023    import java.lang.reflect.Modifier;
024    
025    public class ReflectionUtils extends org.springframework.util.ReflectionUtils {
026    
027        public static <T extends Annotation> void callLifecycleMethod(final Object bean, final Class<T> annotation) {
028            ReflectionUtils.doWithMethods(bean.getClass(), new ReflectionUtils.MethodCallback() {
029                public void doWith(Method method) throws IllegalArgumentException, IllegalAccessException {
030                    if (method.getAnnotation(annotation) != null) {
031                        try {
032                            method.invoke(bean, (Object[]) null);
033                        } catch (IllegalArgumentException ex) {
034                            throw new IllegalStateException(
035                                    "Failure to invoke " + method + " on " + bean.getClass() + ": args=[]", ex);
036                        } catch (IllegalAccessException ex) {
037                            throw new UnsupportedOperationException(ex.toString());
038                        } catch (InvocationTargetException ex) {
039                            throw new UnsupportedOperationException(
040                                    "PostConstruct method on bean threw exception", ex.getTargetException());
041                        }
042                    }
043                }
044            });
045        }
046        
047        public static void setField(Field f, Object instance, Object value) {
048            try {
049                boolean oldAccessible = f.isAccessible();
050                boolean shouldSetAccessible = !Modifier.isPublic(f.getModifiers()) && !oldAccessible;
051                if (shouldSetAccessible) {
052                    f.setAccessible(true);
053                }
054                f.set(instance, value);
055                if (shouldSetAccessible) {
056                    f.setAccessible(oldAccessible);
057                }
058            } catch (IllegalArgumentException ex) {
059                throw new UnsupportedOperationException(
060                        "Cannot inject value of class '" + value.getClass() + "' into " + f);
061            } catch (IllegalAccessException ex) {
062                ReflectionUtils.handleReflectionException(ex);
063            }
064        }
065        
066    }