[GitHub] [hadoop] anuengineer commented on a change in pull request #918: HDDS-1622 Use picocli for StorageContainerManager

[GitBox <gi...@apache.org>]

anuengineer commented on a change in pull request #918: HDDS-1622 Use picocli for StorageContainerManager
URL: https://github.com/apache/hadoop/pull/918#discussion_r291253571
 
 

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 File path: hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/server/StorageContainerManagerStarter.java
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 @@ -0,0 +1,155 @@
+/**
+ * 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
+ *
+ * <p>http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * <p>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.hadoop.hdds.scm.server;
+
+import org.apache.hadoop.hdds.cli.GenericCli;
+import org.apache.hadoop.hdds.cli.HddsVersionProvider;
+import org.apache.hadoop.hdds.conf.OzoneConfiguration;
+import org.apache.hadoop.hdds.tracing.TracingUtil;
+import org.apache.hadoop.ozone.common.StorageInfo;
+import org.apache.hadoop.util.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import picocli.CommandLine;
+import picocli.CommandLine.Command;
+
+import java.io.IOException;
+
+import static org.apache.hadoop.util.ExitUtil.terminate;
+
+/**
+ * This class provides a command line interface to start the SCM
+ * using Picocli.
+ */
+
+@Command(name = "ozone scm",
+    hidden = true, description = "Start or initialize the scm server.",
+    versionProvider = HddsVersionProvider.class,
+    mixinStandardHelpOptions = true)
+public class StorageContainerManagerStarter extends GenericCli {
+
+  private OzoneConfiguration conf;
+  private SCMStarterInterface receiver;
+  private static final Logger LOG =
+      LoggerFactory.getLogger(StorageContainerManagerStarter.class);
+
+  public static void main(String[] args) throws Exception {
+    TracingUtil.initTracing("StorageContainerManager");
+    new StorageContainerManagerStarter(
+        new StorageContainerManagerStarter.SCMStarterHelper()).run(args);
+  }
+
+  public StorageContainerManagerStarter(SCMStarterInterface receiverObj) {
+    super();
+    receiver = receiverObj;
+  }
+
+  @Override
+  public Void call() throws Exception {
+    commonInit();
+    startScm();
+    return null;
+  }
+
+  /**
+   * This function implements a sub-command to generate a new
+   * cluster ID from the command line.
+   */
+  @CommandLine.Command(name = "--genclusterid",
 
 Review comment:
   Drop -- ?

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