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/**
 *  Copyright (c) 1997-2013, www.tinygroup.org ([email protected]).
 *
 *  Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
 *
 *  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.tinygroup.flow.annotation;

import org.tinygroup.annotation.AnnotationClassAction;
import org.tinygroup.annotation.AnnotationPropertyAction;
import org.tinygroup.beancontainer.BeanContainerFactory;
import org.tinygroup.commons.tools.AnnotationUtils;
import org.tinygroup.event.Parameter;
import org.tinygroup.flow.FlowExecutor;
import org.tinygroup.flow.annotation.config.ComponentDefine;
import org.tinygroup.flow.annotation.config.ComponentParameter;
import org.tinygroup.flow.annotation.config.ComponentResult;
import org.tinygroup.flow.annotation.config.ComponentType;
import org.tinygroup.flow.config.Result;
import org.tinygroup.logger.LogLevel;
import org.tinygroup.logger.Logger;
import org.tinygroup.logger.LoggerFactory;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;

/**
 * 流程组件注解处理器
 * 
 * @author renhui
 * 
 */
public class FlowComponentAnnotationAction implements AnnotationClassAction,
		AnnotationPropertyAction {

	private FlowExecutor executor;

	private FlowExecutor pageflowExecutor;

	private static final Logger LOGGER = LoggerFactory
			.getLogger(FlowComponentAnnotationAction.class);

	public  void process(Class clazz, Annotation annotation) {
		if (executor == null) {
			executor = BeanContainerFactory.getBeanContainer(
					this.getClass().getClassLoader()).getBean(
					FlowExecutor.FLOW_BEAN);
		}
		if (pageflowExecutor == null) {
			pageflowExecutor = BeanContainerFactory.getBeanContainer(
					this.getClass().getClassLoader()).getBean(
					FlowExecutor.PAGE_FLOW_BEAN);
		}
		ComponentDefine annoDefine = AnnotationUtils.findAnnotation(clazz,
				ComponentDefine.class);
		org.tinygroup.flow.config.ComponentDefine componentDefine = new org.tinygroup.flow.config.ComponentDefine();
		setBasicProperty(annoDefine, componentDefine);
		ComponentType type = annoDefine.type();
		if (type.equals(ComponentType.BOTH)) {
			executor.addComponent(componentDefine);
			pageflowExecutor.addComponent(componentDefine);
		} else if (type.equals(ComponentType.FLOW)) {
			executor.addComponent(componentDefine);
		} else if (type.equals(ComponentType.PAGEFLOW)) {
			pageflowExecutor.addComponent(componentDefine);
		}
	}

	private void setBasicProperty(ComponentDefine annoDefine,
			org.tinygroup.flow.config.ComponentDefine componentDefine) {
		componentDefine.setName(annoDefine.name());
		componentDefine.setBean(annoDefine.bean());
		componentDefine.setCategory(annoDefine.category());
		componentDefine.setIcon(annoDefine.icon());
		componentDefine.setShortDescription(annoDefine.shortDescription());
		componentDefine.setLongDescription(annoDefine.longDescription());
		componentDefine.setTitle(annoDefine.title());
	}

	public  void process(Class clazz, Field field, Annotation annotation) {
		ComponentDefine annoDefine = AnnotationUtils.findAnnotation(clazz,
				ComponentDefine.class);
		String componentName = annoDefine.name();
		org.tinygroup.flow.config.ComponentDefine componentDefine = executor
				.getComponentDefine(componentName);
		if (componentDefine != null) {
			propertiesProcess(componentDefine, annotation);
		}
		componentDefine = pageflowExecutor.getComponentDefine(componentName);
		if (componentDefine != null) {
			propertiesProcess(componentDefine, annotation);
		}
		if (componentDefine == null) {
			LOGGER.logMessage(LogLevel.WARN, "不存在组件名称为：[{0}]的组件信息",
					componentName);
		}
	}

	public void propertiesProcess(
			org.tinygroup.flow.config.ComponentDefine componentDefine,
			Annotation annotation) {
		if (annotation.annotationType().isAssignableFrom(
				ComponentParameter.class)) {
			ComponentParameter annoParameter = (ComponentParameter) annotation;
			Parameter parameter = createParameter(annoParameter);
			componentDefine.addParamter(parameter);
		} else if (annotation.annotationType().isAssignableFrom(
				ComponentResult.class)) {
			ComponentResult componentResult = (ComponentResult) annotation;
			Result result = createResult(componentResult);
			componentDefine.addResult(result);
		}
	}

	private Result createResult(ComponentResult componentResult) {
		Result result = new Result();
		result.setArray(componentResult.array());
		result.setCollectionType(componentResult.collectionType());
		result.setDescription(componentResult.description());
		result.setName(componentResult.name());
		result.setRequired(componentResult.required());
		result.setTitle(componentResult.title());
		result.setType(componentResult.type());
		return result;
	}

	private Parameter createParameter(ComponentParameter annoParameter) {
		Parameter parameter = new Parameter();
		parameter.setArray(annoParameter.array());
		parameter.setCollectionType(annoParameter.collectionType());
		parameter.setDescription(annoParameter.description());
		parameter.setName(annoParameter.name());
		parameter.setRequired(annoParameter.required());
		parameter.setScope(annoParameter.scope());
		parameter.setTitle(annoParameter.title());
		parameter.setType(annoParameter.type());
		parameter.setValidatorSence(annoParameter.validatorScene());
		return parameter;
	}

}