Create sniper for Read and CSV file using Apache Commons CSV

<dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-csv</artifactId>
        <version>1.5</version>
</dependency>

pom.xml

@@ -47,7 +47,12 @@
 			<artifactId>poi-ooxml</artifactId>
 			<version>3.10-FINAL</version>
 		</dependency>
-
+<!--		Below 1 maven for Read Write data for CSV file-->
+		<dependency>
+			<groupId>org.apache.commons</groupId>
+			<artifactId>commons-csv</artifactId>
+			<version>1.5</version>
+		</dependency>
 
 
 		<!--		For database related test-->

sample.csv

@@ -0,0 +1,3 @@
+Name,Email,Phone,Address
+kibria,[email protected],01431921892,dhaka bangladesh
+anika,[email protected],01631921892,Naogaon

src/main/java/com/CrackCode/ApachePoi/CSVfileReadWrite/CSVReader.java

@@ -0,0 +1,93 @@
+package com.CrackCode.ApachePoi.CSVfileReadWrite;
+
+import org.apache.commons.csv.CSVFormat;
+import org.apache.commons.csv.CSVParser;
+import org.apache.commons.csv.CSVRecord;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+/*
+    @TODO Need this dependency
+    <dependency>
+        <groupId>org.apache.commons</groupId>
+        <artifactId>commons-csv</artifactId>
+        <version>1.5</version>
+    </dependency>
+ */
+public class CSVReader {
+
+    private static final String SAMPLE_CSV_FILE_PATH = "./sample.csv";//--expected Readable CSV File Name
+
+    public static void main(String[] args) throws IOException {
+        /**
+         * @TODO Read and print CSV data with Headers to console
+         */
+        //here get Data From Csv File using valid file name
+        CSVParser csvDataWithHeaders = new CSVReader().getCsvDataListWithHeaders(SAMPLE_CSV_FILE_PATH);
+        //Now print
+        printCSVdata(csvDataWithHeaders);
+
+
+
+
+
+
+
+        System.out.println("\n\n\n\n\n\n\n\n\n-----------------------------Now Read Data Without Headers----------------------------------------\n\n\n\n\n\n\n\n\n\n\n");
+
+
+
+
+
+        /**
+         * @TODO Read and print CSV data without Headers to console
+         */
+        //here get Data From Csv File using valid file name
+        CSVParser csvDataWithoutHeaders = new CSVReader().getCsvDataListWithoutHeaders(SAMPLE_CSV_FILE_PATH);
+        //Now print
+        printCSVdata(csvDataWithoutHeaders);
+
+    }
+
+    public CSVParser getCsvDataListWithHeaders(String fileName) throws IOException {
+        Reader reader = Files.newBufferedReader(Paths.get(SAMPLE_CSV_FILE_PATH));
+        CSVParser csvParser = new CSVParser(reader, CSVFormat.DEFAULT
+                .withHeader("Name", "Email", "Phone", "Address")//those are headers name.
+                .withIgnoreHeaderCase()
+                .withTrim());
+        return csvParser;
+    }
+
+    public CSVParser getCsvDataListWithoutHeaders(String fileName) throws IOException {
+        Reader reader = Files.newBufferedReader(Paths.get(SAMPLE_CSV_FILE_PATH));
+        CSVParser csvParser = new CSVParser(reader, CSVFormat.DEFAULT
+                .withFirstRecordAsHeader()
+                .withIgnoreHeaderCase()
+                .withTrim());
+        return csvParser;
+    }
+
+
+
+    //only for print data
+    public static void printCSVdata(CSVParser csvRecords){
+        for (CSVRecord csvRecord :csvRecords ) {
+            // Accessing values by the names assigned to each column
+            String name = csvRecord.get("Name");
+            String email = csvRecord.get("Email");
+            String phone = csvRecord.get("Phone");
+            String address = csvRecord.get("Address");
+
+            System.out.println("Record No - " + csvRecord.getRecordNumber());
+            System.out.println("---------------");
+            System.out.println("Name : " + name);
+            System.out.println("Email : " + email);
+            System.out.println("Phone : " + phone);
+            System.out.println("Address : " + address);
+            System.out.println("---------------\n\n");
+        }
+    }
+}

src/main/java/com/CrackCode/ApachePoi/CSVfileReadWrite/CSVWriter.java

@@ -0,0 +1,65 @@
+package com.CrackCode.ApachePoi.CSVfileReadWrite;
+
+import com.CrackCode.designPattern.Prototype.Student;
+import org.apache.commons.csv.CSVFormat;
+import org.apache.commons.csv.CSVPrinter;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+
+/*
+    @TODO Need this dependency
+    <dependency>
+        <groupId>org.apache.commons</groupId>
+        <artifactId>commons-csv</artifactId>
+        <version>1.5</version>
+    </dependency>
+ */
+public class CSVWriter {
+    private static final String SAMPLE_CSV_FILE = "./sample.csv";//--expected CSV File Name
+
+    public static void main(String[] args) throws IOException {
+        String[] headers = {"Name", "Email", "Phone","Address"};//for headers
+        //now prepare data
+        List<Student> dataList = new ArrayList<>();
+        dataList.add(new Student("kibria","[email protected]","01431921892","dhaka bangladesh"));
+        dataList.add(new Student("anika","[email protected]","01631921892","Naogaon"));
+        //Now send data to write CSV File
+        new CSVWriter().writeDataTCsv(SAMPLE_CSV_FILE,headers, dataList);
+    }
+
+
+    /**
+     * @TODO Method For Write Data to CSV file
+     * @param fileName
+     * @param headers
+     * @param rowsDataList
+     * @throws IOException
+     */
+    public void writeDataTCsv(String fileName, String[] headers,List<Student> rowsDataList) throws IOException {
+        try {
+            BufferedWriter writer = Files.newBufferedWriter(Paths.get(fileName));
+
+            CSVPrinter csvPrinter = new CSVPrinter(writer, CSVFormat.DEFAULT
+                    .withHeader(headers/*Add headers here*/));
+
+            //now set data to print
+            rowsDataList.forEach(student -> {
+                try {
+                    csvPrinter.printRecord(student.getName(), student.getEmail(), student.getPhone(), student.getAddress());
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            });
+            csvPrinter.flush(); //Finally, flash the operation
+
+        }catch (Exception e){
+            throw e;
+        }
+    }
+
+}

src/main/java/com/CrackCode/interviewQuestion/ApachePoi/ContentReadListener.java → src/main/java/com/CrackCode/ApachePoi/XLfileReadWrite/ContentReadListener.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.ApachePoi;
+package com.CrackCode.ApachePoi.XLfileReadWrite;
 
 public interface ContentReadListener {
     void afterRowRead(int rowIndex, String[] values);

src/main/java/com/CrackCode/interviewQuestion/ApachePoi/ExcelFileReader.java → src/main/java/com/CrackCode/ApachePoi/XLfileReadWrite/ExcelFileReader.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.ApachePoi;
+package com.CrackCode.ApachePoi.XLfileReadWrite;
 
 import com.fasterxml.jackson.databind.exc.InvalidFormatException;
 import org.apache.poi.ss.usermodel.*;

src/main/java/com/CrackCode/interviewQuestion/ApachePoi/ExcelFileWriter.java → src/main/java/com/CrackCode/ApachePoi/XLfileReadWrite/ExcelFileWriter.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.ApachePoi;
+package com.CrackCode.ApachePoi.XLfileReadWrite;
 
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.Row;

src/main/java/com/CrackCode/interviewQuestion/ApachePoi/SpreadSheetReader.java → src/main/java/com/CrackCode/ApachePoi/XLfileReadWrite/SpreadSheetReader.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.ApachePoi;
+package com.CrackCode.ApachePoi.XLfileReadWrite;
 
 public interface SpreadSheetReader {
     /**

src/main/java/com/CrackCode/interviewQuestion/ApachePoi/SpreadSheetWriter.java → src/main/java/com/CrackCode/ApachePoi/XLfileReadWrite/SpreadSheetWriter.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.ApachePoi;
+package com.CrackCode.ApachePoi.XLfileReadWrite;
 
 import javax.servlet.ServletResponse;
 import java.io.File;

src/main/java/com/CrackCode/interviewQuestion/ApachePoi/XLReadWriteTest/ReadFromXlTest.java → src/main/java/com/CrackCode/ApachePoi/XLfileReadWrite/XLReadWriteTest/ReadFromXlTest.java

@@ -1,8 +1,8 @@
-package com.CrackCode.interviewQuestion.ApachePoi.XLReadWriteTest;
+package com.CrackCode.ApachePoi.XLfileReadWrite.XLReadWriteTest;
 
-import com.CrackCode.interviewQuestion.ApachePoi.ContentReadListener;
-import com.CrackCode.interviewQuestion.ApachePoi.ExcelFileReader;
-import com.CrackCode.interviewQuestion.designPattern.Prototype.Student;
+import com.CrackCode.ApachePoi.XLfileReadWrite.ContentReadListener;
+import com.CrackCode.ApachePoi.XLfileReadWrite.ExcelFileReader;
+import com.CrackCode.designPattern.Prototype.Student;
 import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;

src/main/java/com/CrackCode/interviewQuestion/ApachePoi/XLReadWriteTest/WriteToXlTest.java → src/main/java/com/CrackCode/ApachePoi/XLfileReadWrite/XLReadWriteTest/WriteToXlTest.java

@@ -1,8 +1,8 @@
-package com.CrackCode.interviewQuestion.ApachePoi.XLReadWriteTest;
+package com.CrackCode.ApachePoi.XLfileReadWrite.XLReadWriteTest;
 
-import com.CrackCode.interviewQuestion.ApachePoi.ContentReadListener;
-import com.CrackCode.interviewQuestion.ApachePoi.ExcelFileWriter;
-import com.CrackCode.interviewQuestion.designPattern.Prototype.Student;
+import com.CrackCode.ApachePoi.XLfileReadWrite.ContentReadListener;
+import com.CrackCode.ApachePoi.XLfileReadWrite.ExcelFileWriter;
+import com.CrackCode.designPattern.Prototype.Student;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -53,7 +53,7 @@ public void writeApprovedTransactionToResponse(HttpServletResponse response, Str
         try {
 
             ExcelFileWriter xlWriter = new ExcelFileWriter();
-            xlWriter.setContentReadListener(rows.get(0).length, new ContentReadListener() {
+            xlWriter.setContentReadListener(rows.get(0).length/*length of header*/, new ContentReadListener() {
                 @Override
                 public void afterRowRead(int rowIndex, String[] values) {
 

src/main/java/com/CrackCode/interviewQuestion/BeanConfig.java → src/main/java/com/CrackCode/BeanConfig.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion;
+package com.CrackCode;
 
 import org.modelmapper.ModelMapper;
 import org.springframework.context.annotation.Bean;

src/main/java/com/CrackCode/interviewQuestion/InterviewQuestionApplication.java → src/main/java/com/CrackCode/InterviewQuestionApplication.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion;
+package com.CrackCode;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;

src/main/java/com/CrackCode/interviewQuestion/Polymorphism/example1/Programmer.java → src/main/java/com/CrackCode/Polymorphism/example1/Programmer.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Polymorphism.example1;
+package com.CrackCode.Polymorphism.example1;
 
 public class Programmer {
     public void doWork() {

src/main/java/com/CrackCode/interviewQuestion/Polymorphism/example1/RuntimeResult.java → src/main/java/com/CrackCode/Polymorphism/example1/RuntimeResult.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Polymorphism.example1;
+package com.CrackCode.Polymorphism.example1;
 
 public class RuntimeResult {
     public static void main(String[] args) {

src/main/java/com/CrackCode/interviewQuestion/Polymorphism/example1/Tester.java → src/main/java/com/CrackCode/Polymorphism/example1/Tester.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Polymorphism.example1;
+package com.CrackCode.Polymorphism.example1;
 
 public class Tester extends Programmer{
     public void doWork() {

src/main/java/com/CrackCode/interviewQuestion/Polymorphism/example2/Communication.java → src/main/java/com/CrackCode/Polymorphism/example2/Communication.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Polymorphism.example2;
+package com.CrackCode.Polymorphism.example2;
 
 public interface Communication {
     void yourGenderName();

src/main/java/com/CrackCode/interviewQuestion/Polymorphism/example2/Man.java → src/main/java/com/CrackCode/Polymorphism/example2/Man.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Polymorphism.example2;
+package com.CrackCode.Polymorphism.example2;
 
 public class Man implements Communication{
     @Override

src/main/java/com/CrackCode/interviewQuestion/Polymorphism/example2/RuntimeOutput.java → src/main/java/com/CrackCode/Polymorphism/example2/RuntimeOutput.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Polymorphism.example2;
+package com.CrackCode.Polymorphism.example2;
 
 public class RuntimeOutput {
     public static void main(String[] args) {

src/main/java/com/CrackCode/interviewQuestion/Polymorphism/example2/Woman.java → src/main/java/com/CrackCode/Polymorphism/example2/Woman.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Polymorphism.example2;
+package com.CrackCode.Polymorphism.example2;
 
 public class Woman implements Communication{
     @Override

src/main/java/com/CrackCode/interviewQuestion/Reflection/Person.java → src/main/java/com/CrackCode/Reflection/Person.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Reflection;
+package com.CrackCode.Reflection;
 
 
 

src/main/java/com/CrackCode/interviewQuestion/Reflection/ReflectionTest.java → src/main/java/com/CrackCode/Reflection/ReflectionTest.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.Reflection;
+package com.CrackCode.Reflection;
 
 import java.lang.reflect.Field;
 import java.util.Arrays;

src/main/java/com/CrackCode/interviewQuestion/SerializationDeserialization/FullExample/Student.java → src/main/java/com/CrackCode/SerializationDeserialization/FullExample/Student.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.SerializationDeserialization.FullExample;
+package com.CrackCode.SerializationDeserialization.FullExample;
 
 import java.io.Serializable;
 

src/main/java/com/CrackCode/interviewQuestion/SerializationDeserialization/FullExample/StudentMain.java → src/main/java/com/CrackCode/SerializationDeserialization/FullExample/StudentMain.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.SerializationDeserialization.FullExample;
+package com.CrackCode.SerializationDeserialization.FullExample;
 
 import java.io.*;
 

src/main/java/com/CrackCode/interviewQuestion/SerializationDeserialization/Serialization.java → src/main/java/com/CrackCode/SerializationDeserialization/Serialization.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.SerializationDeserialization;
+package com.CrackCode.SerializationDeserialization;
 
 import java.io.Serializable;
 

src/main/java/com/CrackCode/interviewQuestion/Test.java → src/main/java/com/CrackCode/Test.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion;
+package com.CrackCode;
 
 import java.util.ArrayList;
 import java.util.Arrays;

src/main/java/com/CrackCode/interviewQuestion/collection/Frequency.java → src/main/java/com/CrackCode/collection/Frequency.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.collection;
+package com.CrackCode.collection;
 
 import java.util.Arrays;
 import java.util.Collections;

src/main/java/com/CrackCode/interviewQuestion/database/INNER_JOIN/model/Child.java → src/main/java/com/CrackCode/database/INNER_JOIN/model/Child.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.database.INNER_JOIN.model;
+package com.CrackCode.database.INNER_JOIN.model;
 
 import javax.persistence.*;
 

src/main/java/com/CrackCode/interviewQuestion/database/INNER_JOIN/model/Parent.java → src/main/java/com/CrackCode/database/INNER_JOIN/model/Parent.java

@@ -1,4 +1,4 @@
-package com.CrackCode.interviewQuestion.database.INNER_JOIN.model;
+package com.CrackCode.database.INNER_JOIN.model;
 
 import javax.persistence.*;
 

src/main/java/com/CrackCode/interviewQuestion/database/INNER_JOIN/repository/ChildRepository.java → src/main/java/com/CrackCode/database/INNER_JOIN/repository/ChildRepository.java

@@ -1,6 +1,6 @@
-package com.CrackCode.interviewQuestion.database.INNER_JOIN.repository;
+package com.CrackCode.database.INNER_JOIN.repository;
 
-import com.CrackCode.interviewQuestion.database.INNER_JOIN.model.Child;
+import com.CrackCode.database.INNER_JOIN.model.Child;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 

src/main/java/com/CrackCode/interviewQuestion/database/INNER_JOIN/repository/ParentRepository.java → src/main/java/com/CrackCode/database/INNER_JOIN/repository/ParentRepository.java

@@ -1,7 +1,7 @@
-package com.CrackCode.interviewQuestion.database.INNER_JOIN.repository;
+package com.CrackCode.database.INNER_JOIN.repository;
 
-import com.CrackCode.interviewQuestion.database.SQL;
-import com.CrackCode.interviewQuestion.database.INNER_JOIN.model.Parent;
+import com.CrackCode.database.SQL;
+import com.CrackCode.database.INNER_JOIN.model.Parent;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;

src/main/java/com/CrackCode/interviewQuestion/database/INNER_JOIN_WORKER.java → src/main/java/com/CrackCode/database/INNER_JOIN_WORKER.java

@@ -1,9 +1,9 @@
-package com.CrackCode.interviewQuestion.database;
+package com.CrackCode.database;
 
-import com.CrackCode.interviewQuestion.database.INNER_JOIN.model.Child;
-import com.CrackCode.interviewQuestion.database.INNER_JOIN.model.Parent;
-import com.CrackCode.interviewQuestion.database.INNER_JOIN.repository.ChildRepository;
-import com.CrackCode.interviewQuestion.database.INNER_JOIN.repository.ParentRepository;
+import com.CrackCode.database.INNER_JOIN.model.Child;
+import com.CrackCode.database.INNER_JOIN.model.Parent;
+import com.CrackCode.database.INNER_JOIN.repository.ChildRepository;
+import com.CrackCode.database.INNER_JOIN.repository.ParentRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Configuration;