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/*
* Copyright ©2015-2021 Jaemon. 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.github.jaemon.dinger.core;
import com.github.jaemon.dinger.constant.DingerConstant;
import com.github.jaemon.dinger.core.annatations.DingerImageText;
import com.github.jaemon.dinger.core.annatations.DingerLink;
import com.github.jaemon.dinger.core.entity.DingerMethod;
import com.github.jaemon.dinger.core.entity.enums.MessageMainType;
import com.github.jaemon.dinger.core.entity.enums.MessageSubType;
import com.github.jaemon.dinger.core.entity.xml.BeanTag;
import com.github.jaemon.dinger.core.entity.xml.MessageTag;
import com.github.jaemon.dinger.exception.DingerException;
import com.github.jaemon.dinger.utils.XmlUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.Resource;
import org.springframework.util.FileCopyUtils;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static com.github.jaemon.dinger.constant.DingerConstant.SPOT_SEPERATOR;
import static com.github.jaemon.dinger.core.entity.enums.ExceptionEnum.*;
import static com.github.jaemon.dinger.core.entity.enums.ExceptionEnum.LINK_METHOD_PARAM_EXCEPTION;
import static com.github.jaemon.dinger.utils.DingerUtils.methodParamsGenericType;
import static com.github.jaemon.dinger.utils.DingerUtils.methodParamsType;
/**
* dinger定义-xml方式
*
* @author Jaemon
* @since 1.2
*/
public class XmlDingerDefinitionResolver extends AbstractDingerDefinitionResolver {
private static final Logger log = LoggerFactory.getLogger(XmlDingerDefinitionResolver.class);
@Override
public void resolver(Resource[] resources) {
boolean debugEnabled = log.isDebugEnabled();
for (Resource resource : resources) {
if (!resource.isReadable()) {
if (debugEnabled) {
log.debug("Ignored because not readable: {} ", resource.getFilename());
}
continue;
}
String xml;
try {
xml = new String(FileCopyUtils.copyToByteArray(resource.getInputStream()), "UTF-8");
} catch (IOException e) {
throw new DingerException(RESOURCE_CONFIG_EXCEPTION, resource.getFilename());
}
xml = transferXml(xml);
BeanTag dingerBean = XmlUtils.xmlToJavaBean(xml, BeanTag.class);
if (dingerBean == null) {
if (debugEnabled) {
log.debug("dinger xml file: {} content is empty.", resource.getFilename());
}
continue;
}
String namespace = dingerBean.getNamespace();
Class dingerClass;
try {
dingerClass = Class.forName(namespace);
} catch (ClassNotFoundException e) {
throw new DingerException(DINER_XML_NAMESPACE_INVALID, namespace);
}
Map dingerClassMethods = dingerClassMethods(dingerClass);
DingerConfig dingerConfiguration = dingerConfiguration(dingerClass);
List messages = dingerBean.getMessages();
for (MessageTag message : messages) {
String methodName = message.getIdentityId();
if (!dingerClassMethods.containsKey(methodName)) {
if (debugEnabled) {
log.debug("namespace={}, messageId={} undefined in dingerClass.",
namespace, methodName);
}
continue;
}
String dingerName = namespace + SPOT_SEPERATOR + methodName;
String messageSubType = message.getDingerType();
if (!MessageSubType.contains(messageSubType)) {
throw new DingerException(DINER_XML_MSGTYPE_INVALID, dingerName, messageSubType);
}
String dingerDefinitionKey = MessageMainType.XML + SPOT_SEPERATOR + message.getDingerType();
registerDingerDefinition(
dingerName, message,
dingerDefinitionKey,
dingerConfiguration,
dingerClassMethods.get(methodName)
);
}
}
}
/**
* 获取当前Dinger接口层方法的所有参数信息
*
* @param dingerClass
* Dinger接口层类
* @return
* 当前Dinger接口定义的方法的参数信息和泛型信息
*/
protected Map dingerClassMethods(Class dingerClass) {
Method[] methods = dingerClass.getMethods();
Map dingerMethodParams = new HashMap<>();
for (Method method : methods) {
String methodName = method.getName();
String methodAllName = dingerClass.getSimpleName() + DingerConstant.SPOT_SEPERATOR + methodName;
int[] paramTypes = null;
if (method.isAnnotationPresent(DingerImageText.class)) {
paramTypes = methodParamsGenericType(method, DingerImageText.clazz);
if (paramTypes.length != 1) {
throw new DingerException(IMAGETEXT_METHOD_PARAM_EXCEPTION, methodAllName);
}
} else if (method.isAnnotationPresent(DingerLink.class)) {
paramTypes = methodParamsType(method, DingerLink.clazz);
if (paramTypes.length != 1) {
throw new DingerException(LINK_METHOD_PARAM_EXCEPTION, methodAllName);
}
}
String[] methodParams = parameterNameDiscoverer.getParameterNames(method);
dingerMethodParams.put(methodName, new DingerMethod(methodAllName, methodParams, paramTypes));
}
return dingerMethodParams;
}
String transferXml(String sourceXml) {
return sourceXml.replaceAll("", "");
}
}