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.camel.spring.util;
018    
019    import java.lang.reflect.Field;
020    import java.lang.reflect.Modifier;
021    
022    /**
023     * Reflection utilities, extending Spring ReflectionUtils.
024     */
025    public class ReflectionUtils extends org.springframework.util.ReflectionUtils {
026    
027        public static void setField(Field f, Object instance, Object value) {
028            try {
029                boolean oldAccessible = f.isAccessible();
030                boolean shouldSetAccessible = !Modifier.isPublic(f.getModifiers()) && !oldAccessible;
031                if (shouldSetAccessible) {
032                    f.setAccessible(true);
033                }
034                f.set(instance, value);
035                if (shouldSetAccessible) {
036                    f.setAccessible(oldAccessible);
037                }
038            } catch (IllegalArgumentException ex) {
039                throw new UnsupportedOperationException("Cannot inject value of class: " + value.getClass() + " into: " + f);
040            } catch (IllegalAccessException ex) {
041                handleReflectionException(ex);
042            }
043        }
044    
045    }