Towards client/server functionality

* keep org.jraf.jlibibuddy (IBuddy) for legacy purposes
* work on new com.github.boukefalos.ibuddy (iBuddy)
* use log4j for logging
* read configurations from ibuddy.properties
* use picocontainer for easy configuration

src/main/java/com/github/boukefalos/ibuddy/Loader.java

@@ -0,0 +1,68 @@
+package com.github.boukefalos.ibuddy;
+
+import java.io.IOException;
+import java.util.Properties;
+
+import org.picocontainer.DefaultPicoContainer;
+import org.picocontainer.MutablePicoContainer;
+import org.picocontainer.Parameter;
+import org.picocontainer.parameters.ConstantParameter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.github.boukefalos.ibuddy.exception.LoaderException;
+import com.github.boukefalos.ibuddy.implementation.Local;
+import com.github.boukefalos.ibuddy.implementation.Remote;
+import com.github.boukefalos.ibuddy.server.Server;
+
+public class Loader {
+    protected static Logger logger = LoggerFactory.getLogger(Loader.class);
+    protected static MutablePicoContainer pico;
+
+    public static iBuddy getiBuddy() throws LoaderException {
+    	if (!setup()) {
+    		throw new LoaderException();
+    	}
+    	return pico.getComponent(iBuddy.class);
+    }
+
+    public static Server getServer() throws LoaderException {
+    	if (!setup()) {
+    		throw new LoaderException();
+    	}
+    	return pico.getComponent(Server.class);
+    }
+
+    protected static boolean setup() {
+    	if (pico == null) {
+    		/* Read properties file */
+    		Properties properties = new Properties();
+    		try {
+    			properties.load(Loader.class.getClassLoader().getResourceAsStream("ibuddy.properties"));
+    		} catch (IOException e) {
+    			e.printStackTrace();
+    			logger.error("Failed to load properties file", e);
+    			return false;
+    		}
+
+    		/* Initialise container */
+    		pico = new DefaultPicoContainer();
+
+    		/* Add implementation */
+    		if (properties.getProperty("implementation").equals("local")) {
+    			/* Local */
+    			pico.addComponent(Local.class);
+    		} else {
+    			/* Remote */
+	    		pico.addComponent(Remote.class, Remote.class, new Parameter[]{
+	    			new ConstantParameter(properties.getProperty("remote.host")),
+	    			new ConstantParameter(Integer.valueOf(properties.getProperty("remote.port")))});
+    		}
+
+    		/* Add server */
+    		pico.addComponent(Server.class, Server.class, new Parameter[]{
+    			new ConstantParameter(Integer.valueOf(properties.getProperty("server.port")))});
+    	}
+    	return true;
+    }
+}