/*
* 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.requestcontext.session.valueencoder.impl;
import static com.alibaba.citrus.service.configuration.support.PropertyEditorRegistrarsSupport.*;
import static com.alibaba.citrus.springext.util.DomUtil.*;
import static com.alibaba.citrus.springext.util.SpringExtUtil.*;
import com.alibaba.citrus.service.requestcontext.session.valueencoder.AbstractSessionValueEncoder;
import com.alibaba.citrus.springext.ConfigurationPoint;
import com.alibaba.citrus.springext.Contribution;
import com.alibaba.citrus.springext.ContributionAware;
import com.alibaba.citrus.springext.support.parser.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
/**
* 将一个简单类型编码成字符串,或反之。支持加密。
*
* @author Michael Zhou
*/
public class SimpleValueEncoder extends AbstractSessionValueEncoder {
private Class<?> type;
public void setType(Class<?> type) {
this.type = type;
}
@Override
protected boolean doURLEncode() {
return true;
}
/** 简单值不压缩,取得的字符串较短。 */
@Override
protected boolean doCompress() {
return false;
}
@Override
protected String encodeValue(Object value) throws Exception {
return convertToString(type, value, getTypeConverter());
}
@Override
protected Object decodeValue(String encodedValue) throws Exception {
return convertToType(type, encodedValue, getTypeConverter());
}
public static class DefinitionParser extends AbstractSingleBeanDefinitionParser<SimpleValueEncoder> implements
ContributionAware {
private ConfigurationPoint encrypterConfigurationPoint;
public void setContribution(Contribution contrib) {
this.encrypterConfigurationPoint = getSiblingConfigurationPoint("services/request-contexts/session/"
+ "encrypters", contrib);
}
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
attributesToProperties(element, builder, "type", "charset");
builder.addPropertyValue("propertyEditorRegistrars", parseRegistrars(element, parserContext, builder));
for (Element subElement : subElements(element)) {
BeanDefinitionHolder encrypter = parseConfigurationPointBean(subElement, encrypterConfigurationPoint,
parserContext, builder);
if (encrypter != null) {
builder.addPropertyValue("encrypter", encrypter);
break;
}
}
}
}
}