HDDS-12697. Ozone debug CLI command to display details of a single container

hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/debug/logs/LogParser.java

@@ -31,8 +31,8 @@
     subcommands = {
         ContainerLogController.class
     },
-    description = "This serves as a common entry point for all commands that parse and analyze logs," +
-        "regardless of their source or type and require logs to be extracted first."
+    description = "Command to parse and analyze logs, " +
+        "regardless of their source or type. It require logs to be extracted first."
 )
 @MetaInfServices(DebugSubcommand.class)
 public class LogParser implements DebugSubcommand {

hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/debug/logs/container/ContainerInfoCommand.java

@@ -0,0 +1,84 @@
+/*
+ * 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.hadoop.ozone.debug.logs.container;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.concurrent.Callable;
+import org.apache.hadoop.hdds.cli.AbstractSubcommand;
+import org.apache.hadoop.ozone.debug.logs.container.utils.ContainerDatanodeDatabase;
+import org.apache.hadoop.ozone.debug.logs.container.utils.SQLDBConstants;
+import picocli.CommandLine;
+
+/**
+ * Command to display detailed information of a single container by ID.
+ */
+
+@CommandLine.Command(
+    name = "info",
+    description = "Provides complete state transition history of each replica for a single container along with " +
+        "analysis over the container"
+)
+public class ContainerInfoCommand extends AbstractSubcommand implements Callable<Void> {
+
+  @CommandLine.Parameters(index = "0", description = "Container ID")
+  private Long containerId;
+
+  @CommandLine.ParentCommand
+  private ContainerLogController parent;
+
+  @Override
+  public Void call() throws Exception {
+
+    if (containerId < 0) {
+      err().println("Invalid container ID: " + containerId);
+      return null;
+    }
+
+    Path providedDbPath;
+    if (parent.getDbPath() == null) {
+      providedDbPath = Paths.get(System.getProperty("user.dir"), SQLDBConstants.DEFAULT_DB_FILENAME);
+
+      if (Files.exists(providedDbPath) && Files.isRegularFile(providedDbPath)) {
+        out().println("Using default database file found in current directory: " + providedDbPath);
+      } else {
+        err().println("No database path provided and default file '" + SQLDBConstants.DEFAULT_DB_FILENAME + "' not " +
+            "found in current directory. Please provide a valid database path");
+        return null;
+      }
+    } else {
+      providedDbPath = Paths.get(parent.getDbPath());
+      Path parentDir = providedDbPath.getParent();
+
+      if (parentDir != null && !Files.exists(parentDir)) {
+        err().println("The parent directory of the provided database path does not exist: " + parentDir);
+        return null;
+      }
+    }
+
+    ContainerDatanodeDatabase.setDatabasePath(providedDbPath.toString());
+
+    ContainerDatanodeDatabase cdd = new ContainerDatanodeDatabase();
+
+    cdd.showContainerDetails(containerId);
+
+    return null;
+  }
+
+}

hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/debug/logs/container/ContainerLogController.java

@@ -26,6 +26,7 @@
 @CommandLine.Command(
     name = "container",
     subcommands = {
+        ContainerInfoCommand.class,    
         ContainerLogParser.class,
         ListContainers.class
     },