Merge pull request #4 from bruch-alex/maven-integration

add maven and JLine

.gitignore

@@ -17,4 +17,25 @@
 *.ear
 *.zip
 *.tar.gz
-*.rar
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+# https://github.com/takari/maven-wrapper#usage-without-binary-jar
+.mvn/wrapper/maven-wrapper.jar
+
+# Eclipse m2e generated files
+# Eclipse Core
+.project
+# JDT-specific (Eclipse Java Development Tools)
+.classpath

pom.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.mycompany.app</groupId>
+    <artifactId>hamming-code</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>
+                                Main
+                            </mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.4</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <transformers>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>Main</mainClass>
+                                </transformer>
+                            </transformers>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+        </plugins>
+    </build>
+    <dependencies>
+        <dependency>
+            <groupId>org.jline</groupId>
+            <artifactId>jline</artifactId>
+            <version>3.26.2</version>
+        </dependency>
+    </dependencies>
+
+</project>

src/main/Coder.java → src/main/java/Coder.java

@@ -1,14 +1,5 @@
-package main;
-
-import java.util.Scanner;
-
 public class Coder {
-    public static String startCoder(Scanner s) {
-        System.out.println("Enter the message you want to encode: ");
-        String message = s.nextLine();
-        //Helpers.clearConsole();
-        //System.out.println("You entered: " + message);
-
+    public static String startCoder(String message) {
         StringBuilder result = new StringBuilder();
 
         for (char c : message.toCharArray()){
@@ -18,7 +9,6 @@ public static String startCoder(Scanner s) {
             result.append(binaryCharWithCalculatedParityBits);
         }
         return result.toString();
-        //System.out.println("Your encoded text: \n\n" + result);
     }
 
     /**

src/main/Decoder.java → src/main/java/Decoder.java

@@ -1,18 +1,14 @@
-package main;
+import org.jline.reader.LineReader;
 
 import java.util.Scanner;
 
 public class Decoder {
-    public static void startDecoder() {
-        Scanner s = new Scanner(System.in);
-        System.out.println("Enter the message you want to decode: ");
-        String messageWithParityBits = s.nextLine();
-
+    public static String startDecoder(String message) {
         boolean withErrors = false;
-        StringBuilder sb = new StringBuilder(messageWithParityBits);
+        StringBuilder sb = new StringBuilder(message);
         StringBuilder result = new StringBuilder();
 
-        for (int i = 0; i < messageWithParityBits.length(); i+=12) {
+        for (int i = 0; i < message.length(); i+=12) {
             String binaryCharWithParityBits = sb.substring(i , i+12);
             int positionOfDamagedBit = checkAllControlBits(binaryCharWithParityBits);
             if (positionOfDamagedBit != 0) {
@@ -25,7 +21,7 @@ public static void startDecoder() {
         if (!withErrors){
             System.out.println("!!!Received without errors!!!");
         }
-        System.out.println("Your message: \n\n" + result);
+        return result.toString();
     }
 
     private static char decode(String messageWithControlBits){
@@ -56,7 +52,7 @@ private static int checkAllControlBits(String messageWithControlBits){
         for (int i = 0; i < messageWithControlBits.length(); i++) {
             if (Helpers.checkPosition(i)) {
                 sb.replace(i,i+1, "0");
-                int controlBitValue = Helpers.calculateParityBitValue(sb, i);
+                int controlBitValue = Helpers.calculateParityBitValue(i, sb);
                 if (Character.digit(messageWithControlBits.charAt(i),10) != controlBitValue)
                 {
                     positionsOfWrongBits += (i +1);