[servicecomb-java-chassis] branch master updated: [SCB-1965] add zipkin filter

[li...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

liubao pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/servicecomb-java-chassis.git


The following commit(s) were added to refs/heads/master by this push:
     new 55784d1  [SCB-1965] add zipkin filter
55784d1 is described below

commit 55784d1cfe089cf301f5dfa9398dabc76ceb00b4
Author: wujimin <wu...@huawei.com>
AuthorDate: Sat May 30 21:06:10 2020 +0800

    [SCB-1965] add zipkin filter
---
 .../tracing/zipkin/ZipkinFilterProvider.java       | 30 ++++++++++
 .../tracing/zipkin/ZipkinTracingFilter.java        | 69 ++++++++++++++++++++++
 ...g.apache.servicecomb.core.filter.FilterProvider | 18 ++++++
 3 files changed, 117 insertions(+)

diff --git a/handlers/handler-tracing-zipkin/src/main/java/org/apache/servicecomb/tracing/zipkin/ZipkinFilterProvider.java b/handlers/handler-tracing-zipkin/src/main/java/org/apache/servicecomb/tracing/zipkin/ZipkinFilterProvider.java
new file mode 100644
index 0000000..7e8d6c5
--- /dev/null
+++ b/handlers/handler-tracing-zipkin/src/main/java/org/apache/servicecomb/tracing/zipkin/ZipkinFilterProvider.java
@@ -0,0 +1,30 @@
+/*
+ * 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 java.util.Arrays;
+import java.util.List;
+
+import org.apache.servicecomb.core.filter.Filter;
+import org.apache.servicecomb.core.filter.FilterProvider;
+
+public class ZipkinFilterProvider implements FilterProvider {
+  @Override
+  public List<Class<? extends Filter>> getFilters() {
+    return Arrays.asList(ZipkinTracingFilter.class);
+  }
+}
diff --git a/handlers/handler-tracing-zipkin/src/main/java/org/apache/servicecomb/tracing/zipkin/ZipkinTracingFilter.java b/handlers/handler-tracing-zipkin/src/main/java/org/apache/servicecomb/tracing/zipkin/ZipkinTracingFilter.java
new file mode 100644
index 0000000..9d76b26
--- /dev/null
+++ b/handlers/handler-tracing-zipkin/src/main/java/org/apache/servicecomb/tracing/zipkin/ZipkinTracingFilter.java
@@ -0,0 +1,69 @@
+/*
+ * 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.PRODUCER;
+
+import java.util.concurrent.CompletableFuture;
+
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.core.SCBEngine;
+import org.apache.servicecomb.core.exception.Exceptions;
+import org.apache.servicecomb.core.filter.Filter;
+import org.apache.servicecomb.core.filter.FilterMeta;
+import org.apache.servicecomb.core.filter.FilterNode;
+import org.apache.servicecomb.foundation.common.utils.BeanUtils;
+import org.apache.servicecomb.swagger.invocation.Response;
+
+import brave.Span;
+import brave.Tracer.SpanInScope;
+import brave.http.HttpTracing;
+
+@FilterMeta(name = "zipkin")
+public class ZipkinTracingFilter implements Filter {
+  private ZipkinConsumerDelegate consumer;
+
+  private ZipkinProviderDelegate producer;
+
+  @Override
+  public void init(SCBEngine engine) {
+    HttpTracing httpTracing = BeanUtils.getContext().getBean(HttpTracing.class);
+    this.consumer = new ZipkinConsumerDelegate(httpTracing);
+    this.producer = new ZipkinProviderDelegate(httpTracing);
+  }
+
+  @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 (PRODUCER.equals(invocation.getInvocationType())) {
+      return producer;
+    }
+
+    return consumer;
+  }
+}
diff --git a/handlers/handler-tracing-zipkin/src/main/resources/META-INF/services/org.apache.servicecomb.core.filter.FilterProvider b/handlers/handler-tracing-zipkin/src/main/resources/META-INF/services/org.apache.servicecomb.core.filter.FilterProvider
new file mode 100644
index 0000000..400b61e
--- /dev/null
+++ b/handlers/handler-tracing-zipkin/src/main/resources/META-INF/services/org.apache.servicecomb.core.filter.FilterProvider
@@ -0,0 +1,18 @@
+#
+# 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.
+#
+
+org.apache.servicecomb.tracing.zipkin.ZipkinFilterProvider
\ No newline at end of file