/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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.alibaba.citrus.service.configuration.support;
import static com.alibaba.citrus.springext.util.DomUtil.*;
import static com.alibaba.citrus.springext.util.SpringExtUtil.*;
import static com.alibaba.citrus.util.CollectionUtil.*;
import static java.util.Collections.*;
import java.util.Iterator;
import java.util.List;
import com.alibaba.citrus.util.ToStringBuilder;
import org.springframework.beans.PropertyEditorRegistrar;
import org.springframework.beans.PropertyEditorRegistry;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
/**
* 代表一个property editor registrar的集合，然而它本身也是一个
* <code>PropertyEditorRegistrar</code>。
*
* @author Michael Zhou
*/
public class PropertyEditorRegistrarsSupport implements PropertyEditorRegistrar, Iterable<PropertyEditorRegistrar> {
private List<PropertyEditorRegistrar> propertyEditorRegistrars = emptyList();
/**
* 取得一组<code>PropertyEditor</code>注册器。
* <p>
* <code>PropertyEditor</code>负责将字符串值转换成bean property的类型，或反之。
* </p>
*/
public PropertyEditorRegistrar[] getPropertyEditorRegistrars() {
return propertyEditorRegistrars.toArray(new PropertyEditorRegistrar[propertyEditorRegistrars.size()]);
}
/**
* 设置一组<code>PropertyEditor</code>注册器。
* <p>
* <code>PropertyEditor</code>负责将字符串值转换成bean property的类型，或反之。
* </p>
*/
public void setPropertyEditorRegistrars(PropertyEditorRegistrar[] propertyEditorRegistrars) {
this.propertyEditorRegistrars = createArrayList(propertyEditorRegistrars);
}
/** 在registry中注册自定义的<code>PropertyEditor</code>。 */
public void registerCustomEditors(PropertyEditorRegistry registry) {
for (PropertyEditorRegistrar registrar : getPropertyEditorRegistrars()) {
registrar.registerCustomEditors(registry);
}
}
/** 查看有几个registrars。 */
public int size() {
return propertyEditorRegistrars.size();
}
/** 遍历registrars。 */
public Iterator<PropertyEditorRegistrar> iterator() {
return propertyEditorRegistrars.iterator();
}
/** 解析element下的所有registrars。 */
public static Object parseRegistrars(Element parentElement, ParserContext parserContext,
BeanDefinitionBuilder containingBeanDefBuilder) {
ElementSelector registrarSelector = and(sameNs(parentElement), name("property-editor-registrar"));
List<Object> registrars = createManagedList(parentElement, parserContext);
for (Element subElement : subElements(parentElement, registrarSelector)) {
registrars.add(parseBean(subElement, parserContext, containingBeanDefBuilder));
}
return registrars;
}
@Override
public String toString() {
return new ToStringBuilder().append(getClass().getSimpleName()).append(propertyEditorRegistrars).toString();
}
}