Favor use of Properties vs. for configuration

This reverts a number of changes made in commit 3033a19. Primary changes
include:

 - Restoring the immutability of the Node class

 - The argparse4j Namespace object is no longer passed down through
   Guice modules

 - Instead, arguments are eagerly read from the Namespace object by the
   #main method and these values are used to populate the Properties
   object that is already supplied to each Guice module

Other changes include:

 - The addition of a BootstrapNodes#DEFAULT_BOOTSTRAP_NODE field as
   a convenient alias to BootstrapNodes#DIGITAL_OCEAN_1 (or whatever the
   future default bootstrap node may be)

 - A Node#getPortAsString method has been added for convenience when
   dealing with String-based properties

 - A variant of the Node#at static factory method has been added which
   accepts the port value as a String vs. an int--again this is for
   convenience when dealing with String-based properties

 - Tests have been added to NodeTests to reflect the above

src/main/java/io/bitsquare/app/AppModule.java

@@ -40,7 +40,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import akka.actor.ActorSystem;
-import net.sourceforge.argparse4j.inf.Namespace;
 import scala.concurrent.duration.Duration;
 
 /**
@@ -49,12 +48,10 @@ import scala.concurrent.duration.Duration;
 public class AppModule extends BitsquareModule {
     private static final Logger log = LoggerFactory.getLogger(AppModule.class);
 
-    private Namespace argumentsNamespace;
     private final String appName;
 
-    public AppModule(Properties properties, Namespace argumentsNamespace, String appName) {
+    public AppModule(Properties properties, String appName) {
         super(properties);
-        this.argumentsNamespace = argumentsNamespace;
         this.appName = appName;
     }
 
@@ -78,7 +75,7 @@ public class AppModule extends BitsquareModule {
     }
 
     protected MessageModule messageModule() {
-        return new TomP2PMessageModule(properties, argumentsNamespace);
+        return new TomP2PMessageModule(properties);
     }
 
     protected BitcoinModule bitcoinModule() {

src/main/java/io/bitsquare/app/gui/Main.java

@@ -26,6 +26,7 @@ import io.bitsquare.gui.util.ImageUtil;
 import io.bitsquare.persistence.Persistence;
 import io.bitsquare.settings.Settings;
 import io.bitsquare.user.User;
+import io.bitsquare.util.ConfigLoader;
 
 import com.google.common.base.Throwables;
 
@@ -34,6 +35,8 @@ import com.google.inject.Injector;
 
 import java.io.IOException;
 
+import java.util.Properties;
+
 import javafx.application.Application;
 import javafx.scene.*;
 import javafx.scene.image.*;
@@ -46,25 +49,39 @@ import org.slf4j.LoggerFactory;
 import lighthouse.files.AppDirectory;
 import net.sourceforge.argparse4j.inf.Namespace;
 
+import static io.bitsquare.app.ArgumentParser.*;
+
 public class Main extends Application {
     private static final Logger log = LoggerFactory.getLogger(Main.class);
-    private static Namespace argumentsNamespace;
+    private static String appName = "Bitsquare";
+    private static Properties properties;
 
     private MainModule mainModule;
     private Injector injector;
 
     public static void main(String[] args) {
-        argumentsNamespace = new ArgumentParser().parseArgs(args);
+        properties = ConfigLoader.loadConfig(appName);
+
+        Namespace argumentsNamespace = new ArgumentParser().parseArgs(args);
+
+        if (argumentsNamespace.getString(NAME_FLAG) != null)
+            appName = appName + "-" + argumentsNamespace.getString(NAME_FLAG);
+
+        if (argumentsNamespace.getString(SEED_ID_FLAG) != null)
+            properties.setProperty(SEED_ID_FLAG, argumentsNamespace.getString(SEED_ID_FLAG));
+
+        if (argumentsNamespace.getString(SEED_IP_FLAG) != null)
+            properties.setProperty(SEED_IP_FLAG, argumentsNamespace.getString(SEED_IP_FLAG));
+
+        if (argumentsNamespace.getString(SEED_PORT_FLAG) != null)
+            properties.setProperty(SEED_PORT_FLAG, argumentsNamespace.getString(SEED_PORT_FLAG));
+
         Application.launch(Main.class, args);
     }
 
     @Override
     public void start(Stage primaryStage) {
-        String appName = "Bitsquare";
-        if (argumentsNamespace.getString(ArgumentParser.NAME_FLAG) != null)
-            appName = "Bitsquare-" + argumentsNamespace.getString(ArgumentParser.NAME_FLAG);
-
-        mainModule = new MainModule(appName, argumentsNamespace, primaryStage);
+        mainModule = new MainModule(properties, appName, primaryStage);
         injector = Guice.createInjector(mainModule);
 
 

src/main/java/io/bitsquare/app/gui/MainModule.java

@@ -20,28 +20,25 @@ package io.bitsquare.app.gui;
 import io.bitsquare.BitsquareModule;
 import io.bitsquare.app.AppModule;
 import io.bitsquare.gui.GuiModule;
-import io.bitsquare.util.ConfigLoader;
+
+import java.util.Properties;
 
 import javafx.stage.Stage;
 
-import net.sourceforge.argparse4j.inf.Namespace;
-
 class MainModule extends BitsquareModule {
 
     private final String appName;
     private final Stage primaryStage;
-    private final Namespace argumentsNamespace;
 
-    public MainModule(String appName, Namespace argumentsNamespace, Stage primaryStage) {
-        super(ConfigLoader.loadConfig(appName));
+    public MainModule(Properties properties, String appName, Stage primaryStage) {
+        super(properties);
         this.appName = appName;
-        this.argumentsNamespace = argumentsNamespace;
         this.primaryStage = primaryStage;
     }
 
     @Override
     protected void configure() {
-        install(new AppModule(properties, argumentsNamespace, appName));
+        install(new AppModule(properties, appName));
         install(new GuiModule(properties, primaryStage));
     }
 }

src/main/java/io/bitsquare/msg/MessageModule.java

@@ -27,15 +27,13 @@ import com.google.inject.name.Names;
 
 import java.util.Properties;
 
-import net.sourceforge.argparse4j.inf.Namespace;
+import static io.bitsquare.app.ArgumentParser.*;
+import static io.bitsquare.network.BootstrapNodes.DEFAULT_BOOTSTRAP_NODE;
 
 public abstract class MessageModule extends BitsquareModule {
 
-    private final Namespace argumentsNamespace;
-
-    protected MessageModule(Properties properties, Namespace argumentsNamespace) {
+    protected MessageModule(Properties properties) {
         super(properties);
-        this.argumentsNamespace = argumentsNamespace;
     }
 
     @Override
@@ -46,18 +44,13 @@ public abstract class MessageModule extends BitsquareModule {
         // we will probably later use disk storage instead of memory storage for TomP2P
         bind(Boolean.class).annotatedWith(Names.named("useDiskStorage")).toInstance(false);
 
-        Node bootstrapNode = BootstrapNodes.DIGITAL_OCEAN_1;
-        // Passed program args will override the properties of the default bootstrapNode
-        // So you can use the same id and ip but different ports (e.g. running several nodes on one server with
-        // different ports)
-        if (argumentsNamespace.getString(ArgumentParser.SEED_ID_FLAG) != null)
-            bootstrapNode.setId(argumentsNamespace.getString(ArgumentParser.SEED_ID_FLAG));
+        Node bootstrapNode = Node.at(
+                properties.getProperty(SEED_ID_FLAG, DEFAULT_BOOTSTRAP_NODE.getId()),
+                properties.getProperty(SEED_IP_FLAG, DEFAULT_BOOTSTRAP_NODE.getIp()),
+                properties.getProperty(SEED_PORT_FLAG, DEFAULT_BOOTSTRAP_NODE.getPortAsString())
+        );
 
-        if (argumentsNamespace.getString(ArgumentParser.SEED_IP_FLAG) != null)
-            bootstrapNode.setIp(argumentsNamespace.getString(ArgumentParser.SEED_IP_FLAG));
-
-        if (argumentsNamespace.getString(ArgumentParser.SEED_PORT_FLAG) != null)
-            bootstrapNode.setPort(Integer.valueOf(argumentsNamespace.getString(ArgumentParser.SEED_PORT_FLAG)));
+        System.out.println("bootstrapNode = " + bootstrapNode);
 
         bind(Node.class)
                 .annotatedWith(Names.named("bootstrapNode"))

src/main/java/io/bitsquare/msg/tomp2p/TomP2PMessageModule.java

@@ -22,12 +22,10 @@ import io.bitsquare.msg.MessageModule;
 
 import java.util.Properties;
 
-import net.sourceforge.argparse4j.inf.Namespace;
-
 public class TomP2PMessageModule extends MessageModule {
 
-    public TomP2PMessageModule(Properties properties, Namespace argumentsNamespace) {
-        super(properties, argumentsNamespace);
+    public TomP2PMessageModule(Properties properties) {
+        super(properties);
     }
 
     @Override

src/main/java/io/bitsquare/network/BootstrapNodes.java

@@ -28,6 +28,8 @@ public interface BootstrapNodes {
     Node LOCALHOST = Node.at("localhost", "127.0.0.1");
     Node DIGITAL_OCEAN_1 = Node.at("digitalocean1.bitsquare.io", "188.226.179.109");
 
+    Node DEFAULT_BOOTSTRAP_NODE = DIGITAL_OCEAN_1;
+
     static List<Node> all() {
         return Arrays.asList(
                 LOCALHOST, DIGITAL_OCEAN_1

src/main/java/io/bitsquare/network/Node.java

@@ -22,9 +22,9 @@ import com.google.common.base.Objects;
 public final class Node {
     public static final int DEFAULT_PORT = 7366;
 
-    private String id;
-    private String ip;
-    private int port;
+    private final String id;
+    private final String ip;
+    private final int port;
 
     private Node(String id, String ip, int port) {
         this.id = id;
@@ -40,16 +40,8 @@ public final class Node {
         return new Node(id, ip, port);
     }
 
-    public void setId(String id) {
-        this.id = id;
-    }
-
-    public void setIp(String ip) {
-        this.ip = ip;
-    }
-
-    public void setPort(int port) {
-        this.port = port;
+    public static Node at(String id, String ip, String port) {
+        return new Node(id, ip, Integer.valueOf(port));
     }
 
     public String getId() {
@@ -64,6 +56,10 @@ public final class Node {
         return port;
     }
 
+    public String getPortAsString() {
+        return String.valueOf(port);
+    }
+
     @Override
     public boolean equals(Object object) {
         if (this == object)

src/test/java/io/bitsquare/app/gui/ViewLoaderTests.java

@@ -25,6 +25,7 @@ import com.google.inject.Guice;
 import com.google.inject.Injector;
 
 import java.util.HashMap;
+import java.util.Properties;
 
 import javafx.application.Application;
 import javafx.stage.Stage;
@@ -63,9 +64,7 @@ public class ViewLoaderTests {
 
     @Before
     public void setUp() {
-        Injector injector = Guice.createInjector(new MainModule("testApp",
-                new Namespace(new HashMap<>()),
-                TestApp.primaryStage));
+        Injector injector = Guice.createInjector(new MainModule(new Properties(), "testApp", TestApp.primaryStage));
         ViewLoader.setInjector(injector);
     }
 

src/test/java/io/bitsquare/network/NodeTests.java

@@ -44,6 +44,14 @@ public class NodeTests {
         Node node2 = Node.at("bitsquare2.example.com", "203.0.113.2");
         assertThat(node1a.hashCode(), equalTo(node1b.hashCode()));
         assertThat(node1a.hashCode(), not(equalTo(node2.hashCode())));
+
+        assertThat(node1a.getPort(), equalTo(Node.DEFAULT_PORT));
+        assertThat(node1a.getPortAsString(), equalTo(String.valueOf(Node.DEFAULT_PORT)));
+
+        Node node3a = Node.at("bitsquare3.example.com", "203.0.113.3", 1234);
+        Node node3b = Node.at("bitsquare3.example.com", "203.0.113.3", "1234");
+
+        assertThat(node3a, equalTo(node3b));
     }
 
     @Test