Implemeted basic settings functions.

src/de/katho/kBorrow/Main.java

@@ -7,6 +7,7 @@ import de.katho.kBorrow.gui.MainWindow;
 public class Main {
 	public static void main(String[] args){
 		new Main();
+		Settings set = new Settings();
 	}
 	
 	public Main(){

src/de/katho/kBorrow/Settings.java

@@ -1,51 +1,98 @@
 package de.katho.kBorrow;
 
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.*;
+import java.io.OutputStream;
+import java.util.Properties;
 
 public class Settings {
 	
 	private Properties properties;
-	private String filePath = System.getProperty("user.home")+"\\kBorrow\\Settings.cfg";
-	private File cfgFile;
+	private String filePath;
+	private String fileName;
 	
 	public Settings() {
 		this.properties = new Properties();
-		this.cfgFile = new File(this.filePath);
+		this.filePath = System.getProperty("user.home")+"\\kBorrow";
+		this.fileName = "Settings.cfg";
+				
+		if(!this.filePathHasValidConfig()){
+			this.createDefaultConfig();
+		}
 	}
 	
-	private Properties readPropFile(String pFilePath){
-		Properties prop = new Properties();
-		File tFile = new File(pFilePath);
+	/**
+	 * 
+	 * @return
+	 */
+	private boolean filePathHasValidConfig(){
+		try {
+			InputStream in = new FileInputStream(this.filePath+"\\"+this.fileName);
+			this.properties = new Properties();
 			
-		InputStream is = Properties.class.getResourceAsStream(pFilePath);
+			this.properties.load(in);
 			
+			// Check if the properties file holds certain keys and values.
+			if(		(this.properties.containsKey("dBType") && this.properties.containsValue("sqlite") && this.properties.containsKey("sqlitePath")) || 
+					(this.properties.contains("dbType") && this.properties.containsValue("mysql") && this.properties.containsKey("mysqlDB") && this.properties.containsKey("mysqlHost") && this.properties.containsKey("mysqlUser") && this.properties.containsKey("mysqlPass"))) {
+				in.close();
+				return true;
 				
+			}
+			else {
+				in.close();
+				return false;
+			}
+				
+		} catch (FileNotFoundException e) {
+			return false;
+		} catch (IOException e){
+			e.printStackTrace();
+			return false;
+		}
 	}
 	
 	/**
 	 * Writes a default config to the config file.
 	 * 
-	 * @param pFilePath
-	 * @throws IOException
 	 */
-	private void createDefaultPropFile(String pFilePath) throws IOException {
-		Properties prop = new Properties();
-		File tFile = new File(pFilePath);
+	private void createDefaultConfig() {		
+		try {
+			File dir = new File(this.filePath);
+			File file = new File(this.filePath+"\\"+this.fileName);
+			if(!dir.isDirectory()) dir.mkdir();
+			if(!file.isFile()) file.createNewFile();
+			else {
+				file.delete();
+				file.createNewFile();
+			}
 			
-		if(!tFile.isFile() && !tFile.isDirectory()){
-			tFile.createNewFile();
+			OutputStream os = new FileOutputStream(this.filePath+"\\"+this.fileName);
+			
+			this.properties.put("dBType", "sqlite");
+			this.properties.put("sqlitePath", System.getProperty("user.home")+"\\kBorrow\\kBorrow.db" );
+			this.properties.store(os, null);
+			
+			os.close();
+		} catch (FileNotFoundException e) {
+			System.out.println("I couldn't find the specified properties file while trying to create a default config.");
+			e.printStackTrace();
+		} catch (IOException e) {
+			System.out.println(this.filePath);
+			System.out.println("I had problems, writing to the properties file while trying to create a default config.");
+			e.printStackTrace();
 		}		
+	}
 	
-		InputStream is = Properties.class.getResourceAsStream(pFilePath);
-		prop.load(is);
-		prop.clear();
-		
-		prop.put("dBType", "sqlite");
-		prop.put("dBPath", System.getProperty("user.home")+"\\kBorrow.db" );
+	public String getProperty(String pKey){
+		return this.properties.getProperty(pKey);
+	}
 	
+	public void setProperty(String pKey, String pValue){
+		this.properties.put(pKey, pValue);
 	}
 }