helidon metrics to oci integration

bom/pom.xml

@@ -1038,6 +1038,16 @@
                 <artifactId>helidon-integrations-oci-sdk-cdi</artifactId>
                 <version>${helidon.version}</version>
             </dependency>
+            <dependency>
+                <groupId>io.helidon.integrations.oci.metrics</groupId>
+                <artifactId>helidon-integrations-oci-metrics</artifactId>
+                <version>${helidon.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>io.helidon.integrations.oci.metrics</groupId>
+                <artifactId>helidon-integrations-oci-metrics-cdi</artifactId>
+                <version>${helidon.version}</version>
+            </dependency>
             <dependency>
                 <groupId>io.helidon.integrations.vault</groupId>
                 <artifactId>helidon-integrations-vault</artifactId>

integrations/oci/metrics/cdi/pom.xml

@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Copyright (c) 2021, 2023 Oracle and/or its affiliates.
+
+    Licensed 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.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>io.helidon.integrations.oci.metrics</groupId>
+        <artifactId>helidon-integrations-oci-metrics-project</artifactId>
+        <version>4.0.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>helidon-integrations-oci-metrics-cdi</artifactId>
+    <name>Helidon Integrations OCI Metrics CDI</name>
+    <description>Helidon Metrics to OCI via CDI</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.helidon.integrations.oci.metrics</groupId>
+            <artifactId>helidon-integrations-oci-metrics</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.helidon.microprofile.server</groupId>
+            <artifactId>helidon-microprofile-server</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.helidon.microprofile.tests</groupId>
+            <artifactId>helidon-microprofile-tests-junit5</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-all</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>

integrations/oci/metrics/cdi/src/main/java/io/helidon/integrations/oci/metrics/cdi/OciMetricsBean.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023 Oracle and/or its affiliates.
+ *
+ * Licensed 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 io.helidon.integrations.oci.metrics.cdi;
+
+import io.helidon.config.Config;
+import io.helidon.integrations.oci.metrics.OciMetricsSupport;
+import io.helidon.microprofile.server.RoutingBuilders;
+
+import com.oracle.bmc.monitoring.Monitoring;
+import jakarta.annotation.Priority;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.enterprise.context.Initialized;
+import jakarta.enterprise.event.Observes;
+import jakarta.inject.Singleton;
+
+import static jakarta.interceptor.Interceptor.Priority.LIBRARY_BEFORE;
+
+/**
+ * OCI metrics integration CDI extension.
+ */
+
+// This bean is added to handle injection on the ObserverMethod as it does not work on an Extension class.
+@Singleton
+public class OciMetricsBean {
+
+    // Make Priority higher than MetricsCdiExtension so this will only start after MetricsCdiExtension has completed.
+    void registerOciMetrics(@Observes @Priority(LIBRARY_BEFORE + 20) @Initialized(ApplicationScoped.class) Object ignore,
+                            Config config, Monitoring monitoringClient) {
+        Config helidonConfig =  config.get("ocimetrics");
+        if (helidonConfig.exists()) {
+            OciMetricsSupport.Builder builder = OciMetricsSupport.builder()
+                    .config(helidonConfig)
+                    .monitoringClient(monitoringClient);
+
+            RoutingBuilders.create(helidonConfig)
+                    .routingBuilder()
+                    .register(builder.build());
+        }
+    }
+}

integrations/oci/metrics/cdi/src/main/java/io/helidon/integrations/oci/metrics/cdi/OciMetricsCdiExtension.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2022, 2023 Oracle and/or its affiliates.
+ *
+ * Licensed 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 io.helidon.integrations.oci.metrics.cdi;
+
+import jakarta.enterprise.event.Observes;
+import jakarta.enterprise.inject.spi.BeforeBeanDiscovery;
+import jakarta.enterprise.inject.spi.Extension;
+
+/**
+ * OCI metrics integration CDI extension.
+ */
+public class OciMetricsCdiExtension implements Extension {
+
+    // A new bean is added to handle the Observer Method as injection does not work here
+    void addOciMetricsBean(@Observes BeforeBeanDiscovery event) {
+        event.addAnnotatedType(OciMetricsBean.class, OciMetricsBean.class.getName());
+    }
+}

integrations/oci/metrics/cdi/src/main/java/io/helidon/integrations/oci/metrics/cdi/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2022, 2023 Oracle and/or its affiliates.
+ *
+ * Licensed 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.
+ */
+
+/**
+ * Integrating with OCI Metrics Using CDI.
+ */
+package io.helidon.integrations.oci.metrics.cdi;

integrations/oci/metrics/cdi/src/main/java/module-info.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2022, 2023 Oracle and/or its affiliates.
+ *
+ * Licensed 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.
+ */
+
+/**
+ * Integrating with OCI Metrics Using CDI.
+ */
+module io.helidon.integrations.oci.metrics.cdi {
+    requires io.helidon.config.mp;
+    requires io.helidon.integrations.oci.metrics;
+    requires io.helidon.microprofile.config;
+    requires io.helidon.microprofile.server;
+
+    requires oci.java.sdk.monitoring;
+
+    requires jakarta.interceptor.api;
+    provides jakarta.enterprise.inject.spi.Extension with io.helidon.integrations.oci.metrics.cdi.OciMetricsCdiExtension;
+
+    opens io.helidon.integrations.oci.metrics.cdi to weld.core.impl, io.helidon.microprofile.cdi;
+
+    exports io.helidon.integrations.oci.metrics.cdi;
+}