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optimize code

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FUNKYE 2020-05-12 20:51:33 +08:00
parent 8fa763f7d6
commit 29cbc0bfbe
1 changed files with 24 additions and 36 deletions
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24
spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-seata/src/main/java/com/alibaba/cloud/seata/web/SeataHandlerInterceptor.java
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@ -19,11 +19,11 @@ package com.alibaba.cloud.seata.web;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpServletResponse;
import io.seata.common.util.StringUtils;
import io.seata.core.context.RootContext; import io.seata.core.context.RootContext;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.HandlerInterceptor;
/** /**
@ -40,44 +40,33 @@ public class SeataHandlerInterceptor implements HandlerInterceptor {
private static final Logger log = LoggerFactory private static final Logger log = LoggerFactory
.getLogger(SeataHandlerInterceptor.class); .getLogger(SeataHandlerInterceptor.class);
private static final String BIND_XID = "BIND_XID";
private static final String UNBIND_XID = "UNBIND_XID";
@Override @Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
Object handler) {
Object xidStatus = request.getAttribute(BIND_XID);
if (null == xidStatus || !(boolean)xidStatus) {
String xid = RootContext.getXID(); String xid = RootContext.getXID();
String rpcXid = request.getHeader(RootContext.KEY_XID); String rpcXid = request.getHeader(RootContext.KEY_XID);
if (log.isDebugEnabled()) { if (log.isDebugEnabled()) {
log.debug("xid in RootContext {} xid in RpcContext {}", xid, rpcXid); log.debug("xid in RootContext {} xid in RpcContext {}", xid, rpcXid);
} }
if (xid == null && rpcXid != null) { if (StringUtils.isBlank(xid) && rpcXid != null) {
RootContext.bind(rpcXid); RootContext.bind(rpcXid);
request.setAttribute(BIND_XID, true);
if (log.isDebugEnabled()) { if (log.isDebugEnabled()) {
log.debug("bind {} to RootContext", rpcXid); log.debug("bind {} to RootContext", rpcXid);
} }
} }
}
return true; return true;
} }
@Override @Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception e) {
Object handler, Exception e) { if (StringUtils.isNotBlank(RootContext.getXID())) {
String rpcXid = request.getHeader(RootContext.KEY_XID); String rpcXid = request.getHeader(RootContext.KEY_XID);
if (StringUtils.isEmpty(rpcXid)) { if (StringUtils.isEmpty(rpcXid)) {
return; return;
} }
Object xidStatus = request.getAttribute(UNBIND_XID);
if (null == xidStatus || !(boolean)xidStatus) {
String unbindXid = RootContext.unbind(); String unbindXid = RootContext.unbind();
if (log.isDebugEnabled()) { if (log.isDebugEnabled()) {
log.debug("unbind {} from RootContext", unbindXid); log.debug("unbind {} from RootContext", unbindXid);
@ -86,7 +75,6 @@ public class SeataHandlerInterceptor implements HandlerInterceptor {
log.warn("xid in change during RPC from {} to {}", rpcXid, unbindXid); log.warn("xid in change during RPC from {} to {}", rpcXid, unbindXid);
if (unbindXid != null) { if (unbindXid != null) {
RootContext.bind(unbindXid); RootContext.bind(unbindXid);
request.setAttribute(UNBIND_XID, true);
log.warn("bind {} back to RootContext", unbindXid); log.warn("bind {} back to RootContext", unbindXid);
} }
} }