com.xemantic.tadedon.guice.lifecycle.jsr250.Jsr250Utils.java Source code

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Here is the source code for com.xemantic.tadedon.guice.lifecycle.jsr250.Jsr250Utils.java

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/*
 * Copyright 2010 Xemantic
 *
 * 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 com.xemantic.tadedon.guice.lifecycle.jsr250;

import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import org.springframework.core.annotation.AnnotationUtils;

/**
 * 
 * <p>
 * Created on Aug 9, 2010
 *
 * @author hshsce
 */
public class Jsr250Utils {

    private Jsr250Utils() {
        /* util class, non-instantiable */ }

    public static void invoke(Class<? extends Annotation> jsr250Annotation, Iterable<Object> objects) {
        for (Object object : objects) {
            Method[] methods = object.getClass().getMethods();
            for (Method method : methods) {
                if (AnnotationUtils.findAnnotation(method, jsr250Annotation) != null) {
                    try {
                        method.invoke(object);
                    } catch (IllegalArgumentException e) {
                        handleException(jsr250Annotation, method, e);
                    } catch (IllegalAccessException e) {
                        handleException(jsr250Annotation, method, e);
                    } catch (InvocationTargetException e) {
                        handleException(jsr250Annotation, method, e);
                    }
                }
            }
        }
    }

    private static String handleException(Class<? extends Annotation> jsr250Annotation, Method method,
            Exception e) {
        throw new RuntimeException(
                "Error while invoking @" + jsr250Annotation.getSimpleName() + " method: " + method, e);
    }

}