前後端灰度發布解決方案

io.jmnarloch

ribbon-discovery-filter-spring-cloud-starter
2.1.0

//內部通過threadlocal實現

final ribbonfiltercontext context = ribbonfiltercontextholder.getcurrentcontext();
//獲取在第二步存放的「version」    （ribbonfiltercontextholder.getcurrentcontext().add("version", version.tostring())
可以在這裡獲取
final set> attributes = collections.unmodifiableset(context.getattributes().entryset());
//查詢eureka中服務的元資料，也就是第一步中設定的metadata
final mapmetadata = server.getinstanceinfo().getmetadata();
//匹配versoin
return metadata.entryset().containsall(attributes);

public class customconcurrencystrategy extends hystrixconcurrencystrategy 

hystrixcommandexecutionhook commandexecutionhook =
hystrixplugins.getinstance().getcommandexecutionhook();
hystrixeventnotifier eventnotifier = hystrixplugins.getinstance().geteventnotifier();
hystrixmetricspublisher metricspublisher = hystrixplugins.getinstance().getmetricspublisher();
hystrixpropertiesstrategy propertiesstrategy =
hystrixplugins.getinstance().getpropertiesstrategy();
this.logcurrentstateofhystrixplugins(eventnotifier, metricspublisher, propertiesstrategy);
hystrixplugins.reset();
hystrixplugins.getinstance().registerconcurrencystrategy(this);
hystrixplugins.getinstance().registercommandexecutionhook(commandexecutionhook);
hystrixplugins.getinstance().registereventnotifier(eventnotifier);
hystrixplugins.getinstance().registermetricspublisher(metricspublisher);
hystrixplugins.getinstance().registerpropertiesstrategy(propertiesstrategy);
} catch (exception e) 
}private void logcurrentstateofhystrixplugins(hystrixeventnotifier eventnotifier,
hystrixmetricspublisher metricspublisher, hystrixpropertiesstrategy propertiesstrategy) 
}@override
public callablewrapcallable(callablecallable) 
@override
public threadpoolexecutor getthreadpool(hystrixthreadpoolkey threadpoolkey,
hystrixpropertycorepoolsize, hystrixpropertymaximumpoolsize,
hystrixpropertykeepalivetime, timeunit unit, blockingqueueworkqueue) 
@override
public threadpoolexecutor getthreadpool(hystrixthreadpoolkey threadpoolkey,
hystrixthreadpoolproperties threadpoolproperties) 
@override
public blockingqueuegetblockingqueue(int maxqueuesize) 
@override
public hystrixrequestvariablegetrequestvariable(hystrixrequestvariablelifecyclerv) 
private final callabletarget;
private final requestattributes requestattributes;
private final mapribbonattributes;
this.target = target;
this.requestattributes = requestattributes;
this.ribbonattributes = ribbonattributes;
}@override
public t call() throws exception 
}return target.call();
} finally }}
}

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