FileMap with JUnit (#Задание4)

src/ru/fizteh/fivt/students/AndrewTimokhin/FileMap/DataBase/ConstantValue.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.fizteh.fivt.students.AndrewTimokhin.FileMap.DataBase;
+
+/**
+ *
+ * @author Андрей
+ */
+public interface ConstantValue {
+
+    static final int TOTAL_SUB_STRING = 16;
+    static final String DIRECTORY_SUFFIX = ".dir";
+}

src/ru/fizteh/fivt/students/AndrewTimokhin/FileMap/DataBase/DeleteAlgorithm.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.fizteh.fivt.students.AndrewTimokhin.FileMap.DataBase;
+
+import java.io.File;
+
+/**
+ *
+ * @author Андрей
+ */
+public interface DeleteAlgorithm {
+
+    default public void deleteDirectory(File dir) {
+        if (dir.isDirectory()) {
+            String[] children = dir.list();
+            for (String child : children) {
+                File tmpFile = new File(dir, child);
+                deleteDirectory(tmpFile);
+            }
+            dir.delete();
+        } else {
+            dir.delete();
+        }
+    }
+}

src/ru/fizteh/fivt/students/AndrewTimokhin/FileMap/DataBase/FactoryImplements.java

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+package ru.fizteh.fivt.students.AndrewTimokhin.FileMap.DataBase;
+
+import java.io.IOException;
+
+/**
+ * Класс @class FactoryImplements отвечает за фабрику по созданию таблиц.
+ * Имплиментируя интерфейс TableProviderFactory, переопределяет метод по
+ * созданию провайдера базы данных.
+ *
+ * @author Timokhin Andrew
+ */
+public class FactoryImplements implements TableProviderFactory {
+
+    @Override
+    public TableProvider create(String dir) {
+        if (dir == null) {
+            throw new IllegalArgumentException(
+                    "String representing directory is null");
+        }
+        try {
+            return new TableProviderImplements(dir);
+        } catch (IOException exception) {
+            throw new RuntimeException(exception);
+        }
+    }
+}

src/ru/fizteh/fivt/students/AndrewTimokhin/FileMap/DataBase/KeyNullAndNotFound.java

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+package ru.fizteh.fivt.students.AndrewTimokhin.FileMap.DataBase;
+
+public class KeyNullAndNotFound extends Exception {
+
+    public KeyNullAndNotFound(String description) {
+        super(description);
+    }
+}