Files
emo-grab/src/main/java/quant/rich/emoney/controller/api/ProtoDecodeControllerV1.java

315 lines
12 KiB
Java

package quant.rich.emoney.controller.api;
import java.io.Serializable;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.lang.NonNull;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.protobuf.nano.MessageNano;
import jakarta.annotation.PostConstruct;
import org.apache.commons.lang3.StringUtils;
import org.reflections.Reflections;
import lombok.Data;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import nano.BaseResponse.Base_Response;
import quant.rich.emoney.annotation.ResponseDecodeExtension;
import quant.rich.emoney.entity.sqlite.ProtocolMatch;
import quant.rich.emoney.exception.RException;
import quant.rich.emoney.pojo.dto.EmoneyConvertResult;
import quant.rich.emoney.pojo.dto.EmoneyProtobufBody;
import quant.rich.emoney.service.sqlite.ProtocolMatchService;
import quant.rich.emoney.util.SpringBeanDetector;
import quant.rich.emoney.util.SpringContextHolder;
/**
* 益盟 ProtocolBuf 报文解析 API 控制器
*/
@RestController
@RequestMapping("/api/v1/proto")
@Slf4j
public class ProtoDecodeControllerV1 {
@Autowired
ProtocolMatchService protocolMatchService;
@Autowired
Reflections reflections;
Map<String, List<MethodInfo>> responseDecodeExtensions = new HashMap<String, List<MethodInfo>>();
@Data
@RequiredArgsConstructor
private static class MethodInfo {
final Method method;
final Class<?> declaringClass;
final Integer order;
Object instance;
}
@PostConstruct
void postConstruct() {
// Reflections 扫描所有注解并根据 protocolId 和 order 排序
Set<Method> methods = reflections.getMethodsAnnotatedWith(ResponseDecodeExtension.class);
for (Method m : methods) {
MethodInfo info;
ResponseDecodeExtension ex = m.getAnnotation(ResponseDecodeExtension.class);
String protocolId = ex.protocolId();
Integer order = ex.order();
// 判断 method 是否为单参数接受 JsonNode 的方法
Class<?>[] parameterTypes = m.getParameterTypes();
Class<?> declaringClass = m.getDeclaringClass();
if (parameterTypes.length != 1 || parameterTypes[0] != JsonNode.class) {
log.warn("方法 {}#{} 不为类型为 JsonNode 的单参数方法,暂不支持作为解码额外选项",
declaringClass.getSimpleName(), m.getName(), declaringClass.getSimpleName());
continue;
}
// 判断 method 是否是静态
if (Modifier.isStatic(m.getModifiers())) {
info = new MethodInfo(m, null, order);
}
else {
if (!SpringBeanDetector.isSpringManagedClass(declaringClass)) {
log.warn("方法 {} 所属类 {} 不归属于 Spring 管理,目前暂不支持作为解码额外选项",
m.getName(), declaringClass.getSimpleName());
continue;
}
info = new MethodInfo(m, declaringClass, order);
}
List<MethodInfo> list = responseDecodeExtensions.get(protocolId);
if (list == null) {
list = new ArrayList<>();
list.add(info);
responseDecodeExtensions.put(protocolId, list);
}
else {
list.add(info);
}
}
for (List<MethodInfo> list : responseDecodeExtensions.values()) {
list.sort(Comparator.comparingInt(info -> info.getOrder()));
}
log.debug("ResponseDecodeExtension: 共载入 {} 个 ProtocolID 的 {} 个方法",
responseDecodeExtensions.keySet().size(), responseDecodeExtensions.values().size());
}
/**
* 解析 emoney protobuf 的请求
* @param <U>
* @param body
* @return
*/
@SuppressWarnings("unchecked")
@PostMapping("/request/decode")
public <U extends MessageNano> EmoneyConvertResult requestDecode(
@RequestBody(required=true)
@NonNull
EmoneyProtobufBody body) {
Integer protocolId = body.getProtocolId();
if (Objects.isNull(protocolId)) {
throw RException.badRequest("protocolId 不能为 null");
}
ProtocolMatch match = protocolMatchService.getById(protocolId);
if (Objects.isNull(match) || StringUtils.isBlank(match.getClassName())) {
throw RException
.badRequest("暂无对应 protocolId = ", protocolId, " 的记录,可等待 response decoder 收集到后再重试");
}
String className = new StringBuilder()
.append("nano.")
.append(match.getClassName())
.append("Request$")
.append(match.getClassName())
.append("_Request")
.toString();
// IndexInflow -> nano.IndexInflowRequest$IndexInflow_Request
Class<U> clazz;
try {
clazz = (Class<U>)Class.forName(className);
}
catch (Exception e) {
String msg = new StringBuilder()
.append("无法根据给定的 protocolId = ")
.append(protocolId)
.append(", className = ")
.append(className)
.append("找到对应类").toString();
log.warn(msg, e);
throw RException.internalServerError(msg);
}
byte[] buf;
try {
buf = body.protocolBodyToByte();
}
catch (Exception e) {
throw RException.badRequest("转换 protocolBody 错误");
}
try {
U nano = (U)MessageNano.mergeFrom((MessageNano)
clazz.getDeclaredConstructor().newInstance(), buf);
return EmoneyConvertResult
.ok(new ObjectMapper().valueToTree(nano))
.setProtocolId(protocolId)
.setSupposedClassName(className);
}
catch (Exception e) {
String msg = new StringBuilder()
.append("转换为类 ")
.append(className)
.append(" 时错误").toString();
log.warn(msg, e);
return EmoneyConvertResult.error(msg)
.setProtocolId(protocolId)
.setSupposedClassName(className);
}
}
@SuppressWarnings("unchecked")
@PostMapping("/response/decode")
public <U extends MessageNano> EmoneyConvertResult responseDecode(
@RequestBody(required=false)
@NonNull
EmoneyProtobufBody body) {
Integer protocolId = body.getProtocolId();
ProtocolMatch match = null;
if (Objects.isNull(protocolId)) {
log.warn("protocolId 为空 null, 无法更新 protocolMatch");
}
else {
match = protocolMatchService.getById(protocolId);
if (Objects.isNull(match)) {
match = new ProtocolMatch().setProtocolId(protocolId);
}
}
byte[] buf;
try {
buf = body.protocolBodyToByte();
}
catch (Exception e) {
throw RException.badRequest("转换 protocolBody 错误");
}
Base_Response baseResponse;
try {
baseResponse = Base_Response.parseFrom(buf);
}
catch (Exception e) {
String msg = new StringBuilder()
.append("转换 BaseResponse 发生错误")
.toString();
log.warn(msg, e);
return EmoneyConvertResult
.error(msg)
.setProtocolId(protocolId);
}
Class<U> clazz;
String className =
baseResponse.detail.getTypeUrl()
.replace("type.googleapis.com/", "");
String rawClassName = className.substring(0, className.lastIndexOf('_'));
if (Objects.nonNull(match) && StringUtils.isBlank(match.getClassName())) {
match.setClassName(rawClassName);
protocolMatchService.saveOrUpdate(match);
}
className = new StringBuilder()
.append("nano.")
.append(rawClassName)
.append("Response$")
.append(className)
.toString();
try {
clazz = (Class<U>)Class.forName(className);
}
catch (Exception e) {
String msg = new StringBuilder()
.append("无法根据给定的 protocolId = ")
.append(protocolId)
.append(", className = ")
.append(className)
.append("找到对应类").toString();
log.warn(msg, e);
throw RException.internalServerError(msg);
}
try {
U nano = (U)MessageNano.mergeFrom(
(MessageNano)clazz.getDeclaredConstructor().newInstance(),
baseResponse.detail.getValue());
JsonNode jo = new ObjectMapper().valueToTree(nano);
// 查找 ResponseDecodeExtension
List<MethodInfo> methodInfos = responseDecodeExtensions.get(protocolId.toString());
if (methodInfos != null) {
for (MethodInfo methodInfo : methodInfos) {
if (methodInfo.getInstance() != null) {
// instance 不为 null 则说明是已经取到的 spring bean, 直接调用
methodInfo.getMethod().invoke(methodInfo.getInstance(), jo);
}
else if (methodInfo.getDeclaringClass() != null) {
// 获取 spring 管理的实例类
Object instance = SpringContextHolder.getBean(methodInfo.getDeclaringClass());
methodInfo.getMethod().invoke(instance, jo);
methodInfo.setInstance(instance);
}
else {
// 静态方法直接 invoke
methodInfo.getMethod().invoke(null, jo);
}
}
}
return EmoneyConvertResult
.ok((Serializable)jo)
.setProtocolId(protocolId)
.setSupposedClassName(className);
}
catch (Exception e) {
String msg = new StringBuilder()
.append("转换为类 ")
.append(className)
.append(" 时错误").toString();
log.warn(msg, e);
return EmoneyConvertResult.error(msg)
.setProtocolId(protocolId)
.setSupposedClassName(className);
}
}
}