wu-sheng commented on a change in pull request #3945: Enhance webflux plugin,
related to Spring Gateway plugin too.
URL: https://github.com/apache/skywalking/pull/3945#discussion_r352461993
##########
File path:
apm-sniffer/optional-plugins/optional-spring-plugins/spring-webflux-5.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/spring/webflux/v5/reactive/DispatcherHandlerHandleMethodInterceptor.java
##########
@@ -16,62 +16,93 @@
*
*/
-package org.apache.skywalking.apm.plugin.spring.webflux.v5;
-
-/**
- * @author zhaoyuguang
- */
+package org.apache.skywalking.apm.plugin.spring.webflux.v5.reactive;
+import java.lang.reflect.Method;
+import java.util.List;
+import org.apache.skywalking.apm.agent.core.boot.ServiceManager;
+import org.apache.skywalking.apm.agent.core.context.AbstractTracerContext;
import org.apache.skywalking.apm.agent.core.context.CarrierItem;
import org.apache.skywalking.apm.agent.core.context.ContextCarrier;
-import org.apache.skywalking.apm.agent.core.context.ContextManager;
+import
org.apache.skywalking.apm.agent.core.context.ContextManagerExtendService;
import org.apache.skywalking.apm.agent.core.context.tag.Tags;
+import org.apache.skywalking.apm.agent.core.context.tag.Tags.HTTP;
import org.apache.skywalking.apm.agent.core.context.trace.AbstractSpan;
import org.apache.skywalking.apm.agent.core.context.trace.SpanLayer;
import
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance;
import
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceMethodsAroundInterceptor;
import
org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult;
import org.apache.skywalking.apm.network.trace.component.ComponentsDefine;
import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.ServerWebExchangeDecorator;
import org.springframework.web.server.adapter.DefaultServerWebExchange;
+import reactor.core.publisher.Mono;
-import java.lang.reflect.Method;
-import java.util.List;
-
+/**
+ * @author Born
+ */
public class DispatcherHandlerHandleMethodInterceptor implements
InstanceMethodsAroundInterceptor {
- private static final String WIP_OPERATION_NAME = "WEBFLUX.handle";
+ private ContextManagerExtendService extendService =
ServiceManager.INSTANCE.findService(ContextManagerExtendService.class);
@Override
public void beforeMethod(EnhancedInstance objInst, Method method, Object[]
allArguments, Class<?>[] argumentsTypes,
MethodInterceptResult result) throws Throwable {
- EnhancedInstance instance =
DispatcherHandlerHandleMethodInterceptor.getInstance(allArguments[0]);
- if (instance != null) {
- ContextCarrier contextCarrier = new ContextCarrier();
- CarrierItem next = contextCarrier.items();
- ServerWebExchange exchange = (ServerWebExchange) allArguments[0];
- HttpHeaders headers = exchange.getRequest().getHeaders();
- while (next.hasNext()) {
- next = next.next();
- List<String> header = headers.get(next.getHeadKey());
- if (header != null && header.size() > 0) {
- next.setHeadValue(header.get(0));
- }
- }
- AbstractSpan span =
ContextManager.createEntrySpan(WIP_OPERATION_NAME, contextCarrier);
- span.setComponent(ComponentsDefine.SPRING_WEBFLUX);
- SpanLayer.asHttp(span);
- Tags.URL.set(span, exchange.getRequest().getURI().toString());
- instance.setSkyWalkingDynamicField(span);
- }
+
}
@Override
public Object afterMethod(EnhancedInstance objInst, Method method,
Object[] allArguments, Class<?>[] argumentsTypes,
Object ret) throws Throwable {
- return ret;
+ EnhancedInstance instance = getInstance(allArguments[0]);
+
+ ServerWebExchange exchange = (ServerWebExchange) allArguments[0];
+
+ ContextCarrier carrier = new ContextCarrier();
+ CarrierItem next = carrier.items();
+ HttpHeaders headers = exchange.getRequest().getHeaders();
+ while (next.hasNext()) {
+ next = next.next();
+ List<String> header = headers.get(next.getHeadKey());
+ if (header != null && header.size() > 0) {
+ next.setHeadValue(header.get(0));
+ }
+ }
+
+ String pathStr = exchange.getRequest().getPath().value();
+ String methodStr = exchange.getRequest().getMethodValue();
+ String operationName = methodStr + ":" + pathStr;
+
+ AbstractTracerContext context =
extendService.createTraceContext(operationName, false);
Review comment:
The reason we suggest and open ContextManager, because the plugin should be
able to be aware of other plugins in the same context. Once you created the
Context and managed by yourself, span created by other spans can't be linked to
the Context you created. Because they can't find your Context.
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