add support for tracing with opentelemetry

functions-framework-api/pom.xml

@@ -32,7 +32,7 @@
 
   <groupId>dev.openfunction.functions</groupId>
   <artifactId>functions-framework-api</artifactId>
-  <version>1.0.0-SNAPSHOT</version>
+  <version>1.1.0-SNAPSHOT</version>
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

functions-framework-api/src/main/java/dev/openfunction/functions/Context.java

@@ -75,70 +75,24 @@ public interface Context {
      */
     String getName();
 
-    /**
-     * getMode returns the operating environment mode of the function.
-     *
-     * @return Mode
-     */
-    String getMode();
-
     /**
      * GetOut returns the returned value of function.
      *
      * @return Out
      */
     Out getOut();
 
-    /**
-     * getRuntime returns the Runtime.
-     *
-     * @return String
-     */
-    String getRuntime();
-
     /**
      * getHttpPattern returns the path of the server listening for http function.
      *
      * @return String
      */
     String getHttpPattern();
 
-
-    /**
-     * getInputs returns the Inputs of function.
-     *
-     * @return Inputs
-     */
-    Map<String, Component> getInputs();
-
     /**
      * getOutputs returns the Outputs of function.
      *
      * @return Outputs
      */
     Map<String, Component> getOutputs();
-
-    /**
-     * getPodName returns the name of the pod the function is running on.
-     *
-     * @return name of pod
-     */
-    String getPodName();
-
-    /**
-     * getPodNamespace returns the namespace of the pod the function is running on.
-     *
-     * @return namespace of pod
-     */
-    String getPodNamespace();
-
-    /**
-     * @return pre plugins
-     */
-    Map<String, Plugin> getPrePlugins();
-
-    /**
-     * @return post plugin
-     */
-    Map<String, Plugin> getPostPlugins();
 }

functions-framework-api/src/main/java/dev/openfunction/functions/Plugin.java

@@ -16,6 +16,8 @@
 
 package dev.openfunction.functions;
 
+import java.util.Map;
+
 public interface Plugin {
     /**
      * name return the name of this plugin.
@@ -33,7 +35,7 @@ public interface Plugin {
 
     /**
      * init will create a new plugin, and execute hook in this calling.
-     * If you do not want to use a new plugin to execute hook, just return `nil`.
+     * If you do not want to use a new plugin to execute hook, just return `this`.
      *
      * @return Plugin
      */
@@ -63,4 +65,9 @@ public interface Plugin {
      * @return Object
      */
     Object getField(String fieldName);
+
+    Boolean needToTracing();
+
+    Map<String, String> tagsAddToTracing();
+
 }

functions-framework-api/src/main/java/dev/openfunction/functions/TopicEvent.java

@@ -17,6 +17,7 @@
 package dev.openfunction.functions;
 
 import java.nio.ByteBuffer;
+import java.util.Map;
 
 public class TopicEvent {
     /**
@@ -60,7 +61,9 @@ public class TopicEvent {
      */
     private final String topic;
 
-    public TopicEvent(String name, String id, String topic, String specversion, String source, String type, String datacontenttype, ByteBuffer data) {
+    private final Map<String, String> extensions;
+
+    public TopicEvent(String name, String id, String topic, String specversion, String source, String type, String datacontenttype, ByteBuffer data, Map<String, String> extensions) {
         this.name = name;
         this.id = id;
         this.topic = topic;
@@ -69,6 +72,7 @@ public TopicEvent(String name, String id, String topic, String specversion, Stri
         this.type = type;
         this.datacontenttype = datacontenttype;
         this.data = data;
+        this.extensions = extensions;
     }
 
     public String getName() {
@@ -102,4 +106,8 @@ public ByteBuffer getData() {
     public String getTopic() {
         return topic;
     }
+
+    public Map<String, String> getExtensions() {
+        return this.extensions;
+    }
 }

functions-framework-invoker/pom.xml

@@ -10,7 +10,7 @@
 
     <groupId>dev.openfunction.functions</groupId>
     <artifactId>functions-framework-invoker</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
+    <version>1.1.0-SNAPSHOT</version>
 
     <properties>
         <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
@@ -19,7 +19,7 @@
         <junit.jupiter.version>5.3.2</junit.jupiter.version>
         <maven.compiler.source>11</maven.compiler.source>
         <maven.compiler.target>11</maven.compiler.target>
-        <cloudevents.sdk.version>2.3.0</cloudevents.sdk.version>
+        <cloudevents.sdk.version>2.4.2</cloudevents.sdk.version>
     </properties>
 
     <licenses>
@@ -44,11 +44,23 @@
         </repository>
     </repositories>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>io.opentelemetry</groupId>
+                <artifactId>opentelemetry-bom</artifactId>
+                <version>1.23.1</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>dev.openfunction.functions</groupId>
             <artifactId>functions-framework-api</artifactId>
-            <version>1.0.0-SNAPSHOT</version>
+            <version>1.1.0-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>io.cloudevents</groupId>
@@ -63,7 +75,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.9.0</version>
+            <version>2.10.1</version>
         </dependency>
         <dependency>
             <groupId>com.ryanharter.auto.value</groupId>
@@ -80,50 +92,104 @@
         <dependency>
             <groupId>com.google.auto.value</groupId>
             <artifactId>auto-value</artifactId>
-            <version>1.9</version>
+            <version>1.10.1</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>com.google.auto.value</groupId>
             <artifactId>auto-value-annotations</artifactId>
-            <version>1.9</version>
+            <version>1.10.1</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.eclipse.jetty</groupId>
             <artifactId>jetty-servlet</artifactId>
-            <version>11.0.9</version>
+            <version>11.0.14</version>
         </dependency>
         <dependency>
             <groupId>org.eclipse.jetty</groupId>
             <artifactId>jetty-server</artifactId>
-            <version>11.0.9</version>
+            <version>11.0.14</version>
         </dependency>
 
         <dependency>
             <groupId>io.dapr</groupId>
             <artifactId>dapr-sdk</artifactId>
-            <version>1.5.0</version>
+            <version>1.8.0</version>
         </dependency>
         <dependency>
             <groupId>io.dapr</groupId>
             <artifactId>dapr-sdk-actors</artifactId>
-            <version>1.5.0</version>
+            <version>1.8.0</version>
         </dependency>
         <dependency>
             <groupId>io.cloudevents</groupId>
             <artifactId>cloudevents-http-basic</artifactId>
-            <version>2.3.0</version>
+            <version>${cloudevents.sdk.version}</version>
         </dependency>
         <dependency>
             <groupId>org.glassfish.jersey.core</groupId>
             <artifactId>jersey-common</artifactId>
-            <version>3.0.5</version>
+            <version>3.1.1</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-simple</artifactId>
-            <version>2.0.0-alpha6</version>
+            <version>2.0.5</version>
+        </dependency>
+
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry.instrumentation</groupId>
+            <artifactId>opentelemetry-instrumentation-api</artifactId>
+            <version>1.23.0</version>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-sdk</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-sdk-common</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-sdk-extension-autoconfigure</artifactId>
+            <version>1.23.1-alpha</version>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-exporter-otlp</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-exporter-zipkin</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-exporter-jaeger</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-exporter-jaeger-proto</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-exporter-jaeger-thrift</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-semconv</artifactId>
+            <version>1.23.1-alpha</version>
+        </dependency>
+
+        <dependency>
+            <groupId>commons-beanutils</groupId>
+            <artifactId>commons-beanutils</artifactId>
+            <version>1.9.4</version>
         </dependency>
     </dependencies>
 

functions-framework-invoker/src/main/java/dev/openfunction/invoker/Callback.java

@@ -0,0 +1,5 @@
+package dev.openfunction.invoker;
+
+public interface Callback {
+    Error execute() throws Exception;
+}

functions-framework-invoker/src/main/java/dev/openfunction/invoker/Runner.java

@@ -44,8 +44,6 @@ public class Runner {
     private static final String FunctionContext = "FUNC_CONTEXT";
     private static final String FunctionTarget = "FUNCTION_TARGET";
     private static final String FunctionClasspath = "FUNCTION_CLASSPATH";
-    private static final String SyncRuntime = "Knative";
-    private static final String AsyncRuntime = "Async";
 
     public static void main(String[] args) {
 
@@ -66,9 +64,9 @@ public static void main(String[] args) {
 
             Runtime runtime;
             Class<?>[] functionClasses = loadTargets(target, functionClassLoader);
-            if (Objects.equals(runtimeContext.getRuntime(), SyncRuntime)) {
+            if (Objects.equals(runtimeContext.getRuntime(), RuntimeContext.SyncRuntime)) {
                 runtime = new SynchronizeRuntime(runtimeContext, functionClasses);
-            } else if (Objects.equals(runtimeContext.getRuntime(), AsyncRuntime)) {
+            } else if (Objects.equals(runtimeContext.getRuntime(), RuntimeContext.AsyncRuntime)) {
                 runtime = new AsynchronousRuntime(runtimeContext, functionClasses);
             } else {
                 throw new Exception("Unknown runtime");