From a41f3ea11b088b0ebc17dcc8150f556b78aa7dd8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Wed, 9 Jan 2013 07:16:18 +0100
Subject: [PATCH] Use command-line parameters to define directory for states
 and chains.

---
 pom.xml                                            |  5 +++
 .../net/pterodactylus/reactor/engine/Engine.java   | 12 +++++-
 .../net/pterodactylus/reactor/engine/Starter.java  | 45 ++++++++++++++++++++--
 3 files changed, 57 insertions(+), 5 deletions(-)

diff --git a/pom.xml b/pom.xml
index 0aa98ee..0130d8b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,5 +73,10 @@
 			<artifactId>jackson-databind</artifactId>
 			<version>2.1.2</version>
 		</dependency>
+		<dependency>
+			<groupId>com.lexicalscope.jewelcli</groupId>
+			<artifactId>jewelcli</artifactId>
+			<version>0.8.3</version>
+		</dependency>
 	</dependencies>
 </project>
diff --git a/src/main/java/net/pterodactylus/reactor/engine/Engine.java b/src/main/java/net/pterodactylus/reactor/engine/Engine.java
index f14d3d7..6f4376b 100644
--- a/src/main/java/net/pterodactylus/reactor/engine/Engine.java
+++ b/src/main/java/net/pterodactylus/reactor/engine/Engine.java
@@ -47,12 +47,22 @@ public class Engine extends AbstractExecutionThreadService {
 	private static final Logger logger = Logger.getLogger(Engine.class);
 
 	/** The state manager. */
-	private final StateManager stateManager = new StateManager("states");
+	private final StateManager stateManager;
 
 	/** All defined reactions. */
 	/* synchronize on itself. */
 	private final Map<String, Reaction> reactions = new HashMap<String, Reaction>();
 
+	/**
+	 * Creates a new engine.
+	 *
+	 * @param stateManager
+	 *            The state manager
+	 */
+	public Engine(StateManager stateManager) {
+		this.stateManager = stateManager;
+	}
+
 	//
 	// ACCESSORS
 	//
diff --git a/src/main/java/net/pterodactylus/reactor/engine/Starter.java b/src/main/java/net/pterodactylus/reactor/engine/Starter.java
index c3dfa40..0a0941e 100644
--- a/src/main/java/net/pterodactylus/reactor/engine/Starter.java
+++ b/src/main/java/net/pterodactylus/reactor/engine/Starter.java
@@ -18,6 +18,10 @@
 package net.pterodactylus.reactor.engine;
 
 import net.pterodactylus.reactor.loader.ChainWatcher;
+import net.pterodactylus.reactor.states.StateManager;
+
+import com.lexicalscope.jewel.cli.CliFactory;
+import com.lexicalscope.jewel.cli.Option;
 
 /**
  * Reactor main starter class.
@@ -34,13 +38,46 @@ public class Starter {
 	 */
 	public static void main(String... arguments) {
 
-		/* start the engine. */
-		Engine engine = new Engine();
-		engine.start();
+		/* parse command line. */
+		Parameters parameters = CliFactory.parseArguments(Parameters.class, arguments);
+
+		/* create the state manager. */
+		StateManager stateManager = new StateManager(parameters.getStateDirectory());
+
+		/* create the engine. */
+		Engine engine = new Engine(stateManager);
 
 		/* start a watcher. */
-		ChainWatcher chainWatcher = new ChainWatcher(engine, "/home/bombe/Documents/Workspace/Reactor/src/main/resources/chains/");
+		ChainWatcher chainWatcher = new ChainWatcher(engine, parameters.getChainDirectory());
 		chainWatcher.start();
+
+		/* start the engine. */
+		engine.start();
+	}
+
+	/**
+	 * Definition of the command-line parameters.
+	 *
+	 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+	 */
+	private static interface Parameters {
+
+		/**
+		 * Returns the directory to watch for chains.
+		 *
+		 * @return The chain directory
+		 */
+		@Option(defaultValue = "chains", shortName = "c", description = "The directory to watch for chains")
+		String getChainDirectory();
+
+		/**
+		 * Returns the directory to store states in.
+		 *
+		 * @return The states directory
+		 */
+		@Option(defaultValue = "states", shortName = "s", description = "The directory to store states in")
+		String getStateDirectory();
+
 	}
 
 }
-- 
2.7.4