| 提交 | 用户 | 时间 | ||
| e7c126 | 1 | package com.iailab.framework.security.core.context; |
| H | 2 | |
| 3 | import com.alibaba.ttl.TransmittableThreadLocal; | |
| 4 | import org.springframework.security.core.context.SecurityContext; | |
| 5 | import org.springframework.security.core.context.SecurityContextHolderStrategy; | |
| 6 | import org.springframework.security.core.context.SecurityContextImpl; | |
| 7 | import org.springframework.util.Assert; | |
| 8 | ||
| 9 | /** | |
| 10 | * 基于 TransmittableThreadLocal 实现的 Security Context 持有者策略 | |
| 11 | * 目的是，避免 @Async 等异步执行时，原生 ThreadLocal 的丢失问题 | |
| 12 | * | |
| 13 | * @author iailab | |
| 14 | */ | |
| 15 | public class TransmittableThreadLocalSecurityContextHolderStrategy implements SecurityContextHolderStrategy { | |
| 16 | ||
| 17 | /** | |
| 18 | * 使用 TransmittableThreadLocal 作为上下文 | |
| 19 | */ | |
| 20 | private static final ThreadLocal<SecurityContext> CONTEXT_HOLDER = new TransmittableThreadLocal<>(); | |
| 21 | ||
| 22 | @Override | |
| 23 | public void clearContext() { | |
| 24 | CONTEXT_HOLDER.remove(); | |
| 25 | } | |
| 26 | ||
| 27 | @Override | |
| 28 | public SecurityContext getContext() { | |
| 29 | SecurityContext ctx = CONTEXT_HOLDER.get(); | |
| 30 | if (ctx == null) { | |
| 31 | ctx = createEmptyContext(); | |
| 32 | CONTEXT_HOLDER.set(ctx); | |
| 33 | } | |
| 34 | return ctx; | |
| 35 | } | |
| 36 | ||
| 37 | @Override | |
| 38 | public void setContext(SecurityContext context) { | |
| 39 | Assert.notNull(context, "Only non-null SecurityContext instances are permitted"); | |
| 40 | CONTEXT_HOLDER.set(context); | |
| 41 | } | |
| 42 | ||
| 43 | @Override | |
| 44 | public SecurityContext createEmptyContext() { | |
| 45 | return new SecurityContextImpl(); | |
| 46 | } | |
| 47 | ||
| 48 | } | |
