Bael 3460 (eugenp#8550)

* Hexagonal architecture: a quick and practical example

* BAEL 3486

* BAEL-3460

Airline introduction

* BAEL-3460

* BAEL-3460

Airline introduction
BAEL-3460

* BAEL-3460

* Formatting

Author: mguarnaccia

libraries-3/pom.xml

@@ -58,6 +58,11 @@
             <artifactId>javase</artifactId>
             <version>${qrgen.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.github.rvesse</groupId>
+            <artifactId>airline</artifactId>
+            <version>${airline.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.cactoos</groupId>
             <artifactId>cactoos</artifactId>
@@ -82,5 +87,6 @@
         <qrgen.version>2.6.0</qrgen.version>
 
         <cactoos.version>0.43</cactoos.version>
+        <airline.version>2.7.2</airline.version>
     </properties>
 </project>

libraries-3/src/main/java/com/baeldung/airline/CommandLine.java

@@ -0,0 +1,17 @@
+package com.baeldung.airline;
+
+import com.github.rvesse.airline.annotations.Cli;
+import com.github.rvesse.airline.help.Help;
+
+@Cli(name = "baeldung-cli", 
+description = "Baeldung Airline Tutorial",
+defaultCommand = Help.class, 
+commands = { DatabaseSetupCommand.class, LoggingCommand.class, Help.class })
+public class CommandLine {
+
+    public static void main(String[] args) {
+        com.github.rvesse.airline.Cli<Runnable> cli = new com.github.rvesse.airline.Cli<>(CommandLine.class);
+        Runnable cmd = cli.parse(args);
+        cmd.run();
+    }
+}

libraries-3/src/main/java/com/baeldung/airline/DatabaseSetupCommand.java

@@ -0,0 +1,77 @@
+package com.baeldung.airline;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.inject.Inject;
+
+import com.github.rvesse.airline.HelpOption;
+import com.github.rvesse.airline.annotations.Command;
+import com.github.rvesse.airline.annotations.Option;
+import com.github.rvesse.airline.annotations.OptionType;
+import com.github.rvesse.airline.annotations.restrictions.AllowedRawValues;
+import com.github.rvesse.airline.annotations.restrictions.MutuallyExclusiveWith;
+import com.github.rvesse.airline.annotations.restrictions.Pattern;
+import com.github.rvesse.airline.annotations.restrictions.RequiredOnlyIf;
+
+@Command(name = "setup-db", description = "Setup our database")
+public class DatabaseSetupCommand implements Runnable {
+    @Inject
+    private HelpOption<DatabaseSetupCommand> help;
+
+    @Option(type = OptionType.COMMAND,
+      name = {"-d", "--database"},
+      description = "Type of RDBMS.",
+      title = "RDBMS type: mysql|postgresql|mongodb")
+    @AllowedRawValues(allowedValues = { "mysql", "postgres", "mongodb" })
+    protected String rdbmsMode = "mysql";
+
+    @Option(type = OptionType.COMMAND,
+      name = {"--rdbms:url", "--url"},
+      description = "URL to use for connection to RDBMS.",
+      title = "RDBMS URL")
+    @MutuallyExclusiveWith(tag="mode")
+    @Pattern(pattern="^(http://.*):(d*)(.*)u=(.*)&p=(.*)")
+    protected String rdbmsUrl = "";
+
+    @Option(type = OptionType.COMMAND,
+      name = {"--rdbms:host", "--host"},
+      description = "Host to use for connection to RDBMS.",
+      title = "RDBMS host")
+    @MutuallyExclusiveWith(tag="mode")
+    protected String rdbmsHost = "";
+
+    @RequiredOnlyIf(names={"--rdbms:host", "--host"})
+    @Option(type = OptionType.COMMAND,
+      name = {"--rdbms:user", "-u", "--user"},
+      description = "User for login to RDBMS.",
+      title = "RDBMS user")
+    protected String rdbmsUser;
+
+    @RequiredOnlyIf(names={"--rdbms:host", "--host"})
+    @Option(type = OptionType.COMMAND,
+      name = {"--rdbms:password", "--password"},
+      description = "Password for login to RDBMS.",
+      title = "RDBMS password")
+    protected String rdbmsPassword;
+
+    @Option(type = OptionType.COMMAND,
+      name = {"--driver", "--jars"},
+      description = "List of drivers",
+      title = "--driver <PATH_TO_YOUR_JAR> --driver <PATH_TO_YOUR_JAR>")
+    protected List<String> jars = new ArrayList<>();
+
+    @Override
+    public void run() {
+        //skipping store our choices...
+        if (!help.showHelpIfRequested()) {
+            if(!"".equals(rdbmsHost)) {
+                System.out.println("Connecting to database host: " + rdbmsHost);
+                System.out.println("Credential: " + rdbmsUser + " / " + rdbmsPassword);
+            } else {
+                System.out.println("Connecting to database url: " + rdbmsUrl);
+            }
+            System.out.println(jars.toString());
+        }
+    }
+}

libraries-3/src/main/java/com/baeldung/airline/LoggingCommand.java

@@ -0,0 +1,24 @@
+package com.baeldung.airline;
+
+import javax.inject.Inject;
+
+import com.github.rvesse.airline.HelpOption;
+import com.github.rvesse.airline.annotations.Command;
+import com.github.rvesse.airline.annotations.Option;
+
+@Command(name = "setup-log", description = "Setup our log")
+public class LoggingCommand implements Runnable {
+
+    @Inject
+    private HelpOption<LoggingCommand> help;
+
+    @Option(name = { "-v", "--verbose" }, description = "Set log verbosity on/off")
+    private boolean verbose = false;
+
+    @Override
+    public void run() {
+        //skipping store user choice
+        if (!help.showHelpIfRequested())
+            System.out.println("Verbosity: " + verbose);
+    }
+}