Added File Reader

buisnesslogic/src/main/java/com/plannaplan/configutils/FileReader.java

@@ -0,0 +1,55 @@
+package com.plannaplan.configutils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Hashtable;
+import java.util.Iterator;
+
+import org.apache.poi.xssf.usermodel.XSSFSheet;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.Row;
+import com.plannaplan.models.FileData;
+
+public class FileReader {
+
+    private InputStream fileInputStream;
+
+    public FileReader(InputStream fileInputStream) {
+        this.fileInputStream = fileInputStream;
+    }
+
+    public FileData read() {
+
+        FileData result = null;
+
+        try {
+            InputStream fis = this.fileInputStream;
+            XSSFWorkbook workbook = new XSSFWorkbook(fis);
+            XSSFSheet sheet = workbook.getSheetAt(0);
+
+            Iterator<Row> rowIt = sheet.iterator();
+
+            Row row = rowIt.next();
+            Iterator<Cell> cellIt = row.cellIterator();
+
+            Hashtable<String, Integer> keys = new Hashtable<>();
+            int index = 0;
+            while (cellIt.hasNext()) {
+                Cell c = cellIt.next();
+                keys.put(c.toString(), index);
+            }
+
+            rowIt.remove();
+            result = new FileData(keys, rowIt);
+            workbook.close();
+            fis.close();
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return result;
+    }
+
+}

buisnesslogic/src/main/java/com/plannaplan/configutils/FileToDatabaseMigrator.java

@@ -1,12 +1,12 @@
 package com.plannaplan.configutils;
 
-import java.io.File;
+import com.plannaplan.models.FileData;
 
 public class FileToDatabaseMigrator {
     public FileToDatabaseMigrator() {
     }
 
-    public void migrate(File file) {
+    public void migrate(FileData data) {
 
     }
 }

buisnesslogic/src/main/java/com/plannaplan/models/FileData.java

@@ -0,0 +1,34 @@
+package com.plannaplan.models;
+
+import java.util.Dictionary;
+import java.util.Iterator;
+
+import org.apache.poi.ss.usermodel.Row;
+
+public class FileData {
+
+    private Dictionary<String, Integer> keys;
+    private Iterator<Row> rows;
+
+    public FileData(Dictionary<String, Integer> keys, Iterator<Row> rows) {
+        this.setKeys(keys);
+        this.setRows(rows);
+    }
+
+    public Iterator<Row> getRows() {
+        return rows;
+    }
+
+    public void setRows(Iterator<Row> rows) {
+        this.rows = rows;
+    }
+
+    public Dictionary<String, Integer> getKeys() {
+        return keys;
+    }
+
+    public void setKeys(Dictionary<String, Integer> keys) {
+        this.keys = keys;
+    }
+
+}