[monitoring-template] feat(cloudspanner): add Google Cloud Spanner monitoring

hertzbeat-collector/hertzbeat-collector-cloudspanner/pom.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  -->
+<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.hertzbeat</groupId>
+        <artifactId>hertzbeat-collector</artifactId>
+        <version>2.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>hertzbeat-collector-cloudspanner</artifactId>
+    <name>${project.artifactId}</name>
+
+    <properties>
+        <maven.compiler.source>${java.version}</maven.compiler.source>
+        <maven.compiler.target>${java.version}</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.hertzbeat</groupId>
+            <artifactId>hertzbeat-collector-common</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <!-- Google Cloud Spanner JDBC driver -->
+        <dependency>
+            <groupId>com.google.cloud</groupId>
+            <artifactId>google-cloud-spanner-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

hertzbeat-collector/hertzbeat-collector-cloudspanner/src/main/java/org/apache/hertzbeat/collector/collect/cloudspanner/CloudSpannerDriverLoader.java

@@ -0,0 +1,46 @@
+/*
+ * 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.hertzbeat.collector.collect.cloudspanner;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.core.Ordered;
+import org.springframework.core.annotation.Order;
+import org.springframework.stereotype.Service;
+
+/**
+ * Force-loads the Cloud Spanner JDBC driver at startup to prevent SPI
+ * concurrent deadlock when multiple threads first access the driver
+ * simultaneously.  Mirrors the pattern in JdbcSpiLoader for the drivers
+ * bundled in hertzbeat-collector-basic.
+ */
+@Service
+@Slf4j
+@Order(value = Ordered.HIGHEST_PRECEDENCE)
+public class CloudSpannerDriverLoader implements CommandLineRunner {
+
+    @Override
+    public void run(String... args) {
+        log.info("loading Cloud Spanner JDBC driver");
+        try {
+            Class.forName("com.google.cloud.spanner.jdbc.JdbcDriver");
+        } catch (Exception e) {
+            log.error("failed to load Cloud Spanner JDBC driver: {}", e.getMessage());
+        }
+    }
+}

hertzbeat-collector/hertzbeat-collector-cloudspanner/src/test/java/org/apache/hertzbeat/collector/collect/cloudspanner/CloudSpannerDriverLoaderTest.java

@@ -0,0 +1,38 @@
+/*
+ * 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.hertzbeat.collector.collect.cloudspanner;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import java.sql.DriverManager;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Test case for {@link CloudSpannerDriverLoader}
+ */
+class CloudSpannerDriverLoaderTest {
+
+    @Test
+    void spannerDriverMustBeRegisteredAfterLoad() throws Exception {
+        new CloudSpannerDriverLoader().run();
+        assertNotNull(
+                DriverManager.getDriver(
+                        "jdbc:cloudspanner:/projects/p/instances/i/databases/d"),
+                "Cloud Spanner JDBC driver must be registered after CloudSpannerDriverLoader runs");
+    }
+}

hertzbeat-collector/hertzbeat-collector-collector/pom.xml

@@ -127,6 +127,11 @@
             <artifactId>mssql-jdbc</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.apache.hertzbeat</groupId>
+            <artifactId>hertzbeat-collector-cloudspanner</artifactId>
+            <version>${hertzbeat.version}</version>
+        </dependency>
 
     </dependencies>