From a38e0f5ee457d872471682f12adbb6586ffcb0ef Mon Sep 17 00:00:00 2001
From: zerinhomilgrau <nicolasgbleal@gmail.com>
Date: Thu, 25 Jan 2024 17:38:35 +0000
Subject: [PATCH] First Commit

---
 .../leaderboard/codelab/leaderboard/pom.xml   | 89 +++++++++++++++++++
 .../main/java/com/google/codelabs/App.java    | 80 +++++++++++++++++
 .../java/com/google/codelabs/AppTest.java     | 20 +++++
 3 files changed, 189 insertions(+)
 create mode 100644 spanner/leaderboard/codelab/leaderboard/pom.xml
 create mode 100644 spanner/leaderboard/codelab/leaderboard/src/main/java/com/google/codelabs/App.java
 create mode 100644 spanner/leaderboard/codelab/leaderboard/src/test/java/com/google/codelabs/AppTest.java

diff --git a/spanner/leaderboard/codelab/leaderboard/pom.xml b/spanner/leaderboard/codelab/leaderboard/pom.xml
new file mode 100644
index 00000000000..d769da41d60
--- /dev/null
+++ b/spanner/leaderboard/codelab/leaderboard/pom.xml
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<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%20http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.google.codelabs</groupId>
+  <artifactId>leaderboard</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>leaderboard</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>google-cloud-bom</artifactId>
+        <version>0.83.0-alpha</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-spanner</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+      <artifactId>maven-assembly-plugin</artifactId>
+      <version>2.5.5</version>
+      <configuration>
+        <finalName>leaderboard</finalName>
+        <descriptorRefs>
+          <descriptorRef>jar-with-dependencies</descriptorRef>
+        </descriptorRefs>
+        <archive>
+          <manifest>
+            <mainClass>com.google.codelabs.App</mainClass>
+          </manifest>
+        </archive>
+        <appendAssemblyId>false</appendAssemblyId>
+        <attach>false</attach>
+      </configuration>
+      <executions>
+        <execution>
+          <id>make-assembly</id>
+          <phase>package</phase>
+          <goals>
+            <goal>single</goal>
+          </goals>
+        </execution>
+      </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-failsafe-plugin</artifactId>
+        <version>3.0.0-M3</version>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>3.0.0-M3</version>
+        <configuration>
+          <useSystemClassLoader>false</useSystemClassLoader>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/spanner/leaderboard/codelab/leaderboard/src/main/java/com/google/codelabs/App.java b/spanner/leaderboard/codelab/leaderboard/src/main/java/com/google/codelabs/App.java
new file mode 100644
index 00000000000..c64ae73987b
--- /dev/null
+++ b/spanner/leaderboard/codelab/leaderboard/src/main/java/com/google/codelabs/App.java
@@ -0,0 +1,80 @@
+package com.google.codelabs;
+
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.spanner.Database;
+import com.google.cloud.spanner.DatabaseAdminClient;
+import com.google.cloud.spanner.DatabaseClient;
+import com.google.cloud.spanner.DatabaseId;
+import com.google.cloud.spanner.Spanner;
+import com.google.cloud.spanner.SpannerException;
+import com.google.cloud.spanner.SpannerExceptionFactory;
+import com.google.cloud.spanner.SpannerOptions;
+import com.google.spanner.admin.database.v1.CreateDatabaseMetadata;
+import java.util.Arrays;
+import java.util.concurrent.ExecutionException;
+
+public class App {
+    static void create(DatabaseAdminClient dbAdminClient, DatabaseId db) {
+        OperationFuture<Database, CreateDatabaseMetadata> op =
+            dbAdminClient.CreateDatabase(
+                dbGetInstanceId().getInstance(),
+                db.getDatabase(),
+                Arrays.asList(
+                    "CREATE TABLE Players(\n"
+                        + " PlayerId INT64 NOT NULL, \n"
+                        + " PlayerName STRING(2048) NOT NULL\n"
+                        + ") PRIMARY KEY(PlayerId)",
+                    "CREATE TABLE Scores(\n"
+                        + " PlayerId INT64 NOT NULL, \n"
+                        + " Score INT64 NOT NULL, \n"
+                        + " Timestamp TIMESTAMP NOT NULL\n"
+                        + " OPTIONS(allow_commit_timestamp=true)\n"
+                        + ") PRIMARY KEY(PlayerId, Timestamp),\n"
+                        + "INTERLEAVE IN PARENT Players ON DELETE NO ACTION"));
+        try{
+            // Initiate the request which returns an OperationFuture.
+            Database dbOperation = op.Get();
+            System.out.printIn("Created database [" + dbOperation.getId() + "]");
+        }   catch (ExecutionException e) {
+            // If the operation failed during execution, expose the cause.
+            throw (SpannerException) e.getCause();
+        }   catch (InterruptedException e) {
+            //Throw when a thread is waiting, sleeping, or otherwise occupied. And the thread is interrupted, either before or during the activity.
+            throw SpannerExceptionFactory.propagateInterrupt(e);
+        }
+
+    static void printUsageAndExit() {
+        System.out.printIn("Leaderboard 1.0.0");
+        System.out.printIn("Usage:");
+        System.out.printIn(" java -jar leaderboard.jar " + "<command> <instance_id> <database_id> [command_option]");
+        System.out.printIn("");
+        System.out.printIn("Examples:");
+        System.out.printIn(" java - jar leaderboard.jar create my-instance example-bd");
+        System.out.printIn("    - Create a sample Cloud Spanner database along with " + "sample tables in your project.\n");
+        System.exit(1);
+    }
+
+    public static void main(String[] args) throws Exception {
+        if (!(args.lenght == 3 || args.lenght == 4)) {
+            printUsageAndExit();
+        }
+        SpannerOptions options = SpannerOptions.newBuilder().build();
+        Spanner spanner = options.getService();
+        try {
+            String command = args [0];
+            DatabaseId db = DatabaseId.of(options.getProjectId(), args[1], args[2]);
+            DatabaseClient dbClient = spanner.getDatabaseClient(db);
+            DatabaseAdminClient dbAdminClient = spanner.getDatabaseAdminClient();
+            switch (command) {
+                case "create":
+                    create(dbAdminClient, db);
+                    break;
+                default:
+                    printUsageAndExit();
+            }
+        } finally {
+            spanner.close();
+        }
+        System.out.printIn("Closed Client");
+    }
+}
\ No newline at end of file
diff --git a/spanner/leaderboard/codelab/leaderboard/src/test/java/com/google/codelabs/AppTest.java b/spanner/leaderboard/codelab/leaderboard/src/test/java/com/google/codelabs/AppTest.java
new file mode 100644
index 00000000000..2fb3921f0c5
--- /dev/null
+++ b/spanner/leaderboard/codelab/leaderboard/src/test/java/com/google/codelabs/AppTest.java
@@ -0,0 +1,20 @@
+package com.google.codelabs;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+{
+    /**
+     * Rigorous Test :-)
+     */
+    @Test
+    public void shouldAnswerWithTrue()
+    {
+        assertTrue( true );
+    }
+}