improved UI and messages

src/main/java/org/jdamico/javax25/BasicHelper.java

@@ -0,0 +1,155 @@
+package org.jdamico.javax25;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.lang.management.ManagementFactory;
+import java.net.URISyntaxException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+import java.util.concurrent.TimeUnit;
+
+
+public class BasicHelper {
+
+	private static BasicHelper INSTANCE = null;
+	private BasicHelper(){}
+	public static BasicHelper getInstance(){
+		if(null == INSTANCE) INSTANCE = new BasicHelper();
+		return INSTANCE;
+	}
+
+	public String dateToString(Date date, String format){
+		String strDate = null;
+		try {
+			SimpleDateFormat formatter = new SimpleDateFormat(format);
+			strDate = formatter.format(date);
+		}catch (NullPointerException e) {}
+		return strDate;
+
+	}
+
+	public void posixKill(String signal, String pid)  {
+
+		try {
+			Runtime runtime = Runtime.getRuntime();
+			runtime.exec("kill -"+signal+" "+pid);
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+
+	public Date stringToDate(String dateStr, String format) throws Exception{
+
+		DateFormat dateFormat = new SimpleDateFormat(format, Locale.ENGLISH);
+		Date date = null;
+
+		date = dateFormat.parse(dateStr);
+
+		return date;
+	}
+
+	public long getDiffHoursBetweenDates(Date init, Date end) {
+		long diff = end.getTime() - init.getTime();
+		diff = TimeUnit.HOURS.convert(diff, TimeUnit.MILLISECONDS);
+		return diff;
+	}
+
+	public String readTextFileToString(File source) throws Exception {
+		StringBuffer output = null;
+
+
+
+		if(source != null && source.exists() && source.isFile()) {
+			Path path = source.toPath();
+			try {
+				List<String> lst = Files.readAllLines(path);
+				output = new StringBuffer();
+				for (int i = 0; i < lst.size(); i++) {
+					output.append(lst.get(i)+"\n");
+				}
+			} catch (IOException e) {
+				throw new Exception("invalid file");
+			}
+		}else throw new Exception("invalid file");
+
+
+
+		return output.toString();
+	}
+
+	public void writeStrToFile(String str, String fileName) throws IOException{
+
+		File file = new File(fileName);
+		writeStrToFile(str, file);
+	}
+
+
+	public void writeStrToFile(String str, File file) throws IOException{
+
+		FileWriter fw = null;
+		BufferedWriter out = null;
+		try {
+			fw = new FileWriter(file);
+			out = new BufferedWriter(fw);
+			out.write(str);  
+		}finally{
+			if(out != null)
+
+				out.close();
+
+			if(fw != null)
+
+				fw.close();
+
+		}	
+	}
+
+
+	public String listToString(List<String> lst) {
+		StringBuffer sb = new StringBuffer();
+		for (int i = 0; i < lst.size(); i++) {
+			if(i + 1 == lst.size()) sb.append(lst.get(i));
+			else sb.append(lst.get(i)+", ");
+		}
+		return sb.toString();
+	}
+
+	public List<String> stringToListCli(String defaultRtl433Cli) {
+		List<String> lst = new ArrayList<String>();
+		defaultRtl433Cli = defaultRtl433Cli.replaceAll("  ", " ");
+		String[] rtlStrArray = defaultRtl433Cli.split(" ");
+		for (String cliPart : rtlStrArray) {
+			lst.add(cliPart);
+		}
+		return lst;
+	}
+
+	public String getAbsoluteRunningPath() {
+		Path currentRelativePath = Paths.get("");
+		return currentRelativePath.toAbsolutePath().toString();
+	}
+
+	public String getAbsoluteMainJarPath() throws URISyntaxException {
+		return new File(App.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getPath();
+	}
+
+	public String getCurrentPid() {
+		String ret = null;
+		String jvmName = ManagementFactory.getRuntimeMXBean().getName();
+	    int index = jvmName.indexOf('@');
+	    ret = Long.toString(Long.parseLong(jvmName.substring(0, index)));
+
+
+	    return ret;
+	}
+
+}

src/main/java/org/jdamico/javax25/Constants.java

@@ -0,0 +1,9 @@
+package org.jdamico.javax25;
+
+public interface Constants {
+
+	public static final String DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
+	public static final String APP_NAME = "JavaX25 Tester";
+	public static final String APP_VERSION = "0.0.2";
+
+}