Lab3/src/main/java/org/lumijiez/base/ArbitraryFile.java

@@ -0,0 +1,9 @@
+package org.lumijiez.base;
+
+import java.nio.file.Path;
+
+public class ArbitraryFile extends Document{
+    public ArbitraryFile(Path path) {
+        super(path);
+    }
+}

Lab3/src/main/java/org/lumijiez/base/CodeFile.java

@@ -0,0 +1,9 @@
+package org.lumijiez.base;
+
+import java.nio.file.Path;
+
+public class CodeFile extends Document{
+    public CodeFile(Path path) {
+        super(path);
+    }
+}

Lab3/src/main/java/org/lumijiez/base/Document.java

@@ -3,31 +3,57 @@ package org.lumijiez.base;
 import org.lumijiez.enums.FileType;
 import org.lumijiez.interfaces.IDocument;
 
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.attribute.BasicFileAttributes;
 import java.util.Date;
 
-public class Document implements IDocument {
-    private String fullFilename = "";
+public class Document extends File implements IDocument {
+    private String extension;
     private FileType fileType;
-    private Date createdAt;
-    private Date modifiedAt;
 
-    @Override
-    public String getFilename() {
-        return null;
+    public Document(Path path) {
+        super(path.toString());
+        init();
+    }
+
+    private void init() {
+        int lastDotIndex = getName().lastIndexOf('.');
+        extension = (lastDotIndex > 0) ? getName().substring(lastDotIndex + 1) : "";
+        fileType = FileType.getFileType(extension);
     }
 
     @Override
     public String getExtension() {
-        return null;
+        return extension;
     }
 
     @Override
     public Date getCreatedTime() {
+        try {
+            BasicFileAttributes fileAttributes = Files.readAttributes(Path.of(this.getPath()), BasicFileAttributes.class);
+            return new Date(fileAttributes.creationTime().toMillis());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
         return null;
     }
 
     @Override
     public Date getModificationTime() {
+        try {
+            BasicFileAttributes fileAttributes = Files.readAttributes(Path.of(this.getPath()), BasicFileAttributes.class);
+            return new Date(fileAttributes.lastAccessTime().toMillis());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
         return null;
     }
+
+    @Override
+    public FileType getFileType() {
+        return fileType;
+    }
 }

Lab3/src/main/java/org/lumijiez/base/ImageFile.java

@@ -0,0 +1,9 @@
+package org.lumijiez.base;
+
+import java.nio.file.Path;
+
+public class ImageFile extends Document{
+    public ImageFile(Path path) {
+        super(path);
+    }
+}

Lab3/src/main/java/org/lumijiez/base/TextFile.java

@@ -0,0 +1,9 @@
+package org.lumijiez.base;
+
+import java.nio.file.Path;
+
+public class TextFile extends Document {
+    public TextFile(Path path) {
+        super(path);
+    }
+}

Lab3/src/main/java/org/lumijiez/enums/FileType.java

@@ -4,8 +4,22 @@ import java.util.ArrayList;
 import java.util.List;
 
 public enum FileType {
-    IMAGE, PLAINTEXT, FILE, CODE;
+    IMAGE("Image"), PLAINTEXT("Plaintext"), FILE("File"), CODE("Code"), NONE("None");
     public List<String> typeExtensions;
+    public final String typeName;
+
+    FileType(String typeName) {
+        this.typeName = typeName;
+    }
+
+    public static FileType getFileType(String extension) {
+        for (FileType fileType : values()) {
+            if (fileType.typeExtensions.contains(extension.toLowerCase())) {
+                return fileType;
+            }
+        }
+        return NONE;
+    }
 
     static {
         IMAGE.typeExtensions = new ArrayList<>(List.of("jpg", "png"));

Lab3/src/main/java/org/lumijiez/interfaces/IDocument.java

@@ -1,10 +1,12 @@
 package org.lumijiez.interfaces;
 
+import org.lumijiez.enums.FileType;
+
 import java.util.Date;
 
 public interface IDocument {
-    public String getFilename();
     public String getExtension();
     public Date getCreatedTime();
     public Date getModificationTime();
+    public FileType getFileType();
 }