| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.servicecomb.tracing.zipkin; |
| |
| import static org.apache.servicecomb.swagger.invocation.InvocationType.PROVIDER; |
| |
| import java.util.concurrent.CompletableFuture; |
| |
| import org.apache.servicecomb.core.Invocation; |
| import org.apache.servicecomb.core.exception.Exceptions; |
| import org.apache.servicecomb.core.filter.AbstractFilter; |
| import org.apache.servicecomb.core.filter.ConsumerFilter; |
| import org.apache.servicecomb.core.filter.FilterNode; |
| import org.apache.servicecomb.core.filter.ProviderFilter; |
| import org.apache.servicecomb.swagger.invocation.Response; |
| import org.springframework.beans.factory.annotation.Autowired; |
| |
| import brave.Span; |
| import brave.Tracer.SpanInScope; |
| import brave.http.HttpTracing; |
| |
| public class ZipkinTracingFilter extends AbstractFilter implements ConsumerFilter, ProviderFilter { |
| public static final String NAME = "zipkin"; |
| |
| @Autowired |
| private HttpTracing httpTracing; |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @SuppressWarnings({"try", "unused"}) |
| @Override |
| public CompletableFuture<Response> onFilter(Invocation invocation, FilterNode nextNode) { |
| ZipkinTracingDelegate tracing = collectTracing(invocation); |
| |
| Span span = tracing.createSpan(invocation); |
| try (SpanInScope scope = tracing.tracer().tracer().withSpanInScope(span)) { |
| return nextNode.onFilter(invocation) |
| .whenComplete((response, exception) -> tracing.onResponse(span, response, Exceptions.unwrap(exception))); |
| } |
| } |
| |
| private ZipkinTracingDelegate collectTracing(Invocation invocation) { |
| if (PROVIDER.equals(invocation.getInvocationType())) { |
| return new ZipkinProviderDelegate(httpTracing); |
| } |
| |
| return new ZipkinConsumerDelegate(httpTracing); |
| } |
| } |