Prepared for excercise

Resolves: #

src/main/java/lab07/HttpHandler.java

 package lab07;
 
-import static jakarta.ws.rs.core.Response.Status.NOT_FOUND;
-import static jakarta.ws.rs.core.Response.Status.OK;
-
-import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.io.RandomAccessFile;
 import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
 import java.nio.channels.SocketChannel;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -31,14 +25,7 @@ class HttpHandler {
 		try {
 			request = getRequest(channel);
 			String resource = getResource(request);
-			CompletableFuture<Void> getFileTransfer = transferFile(resource, channel);
-			getFileTransfer.thenRun(() -> {
-				try {
-					channel.close();
-				} catch (IOException e) {
-					log.error("close", channel);
-				}
-			});
+			
 		} catch (IOException e) {
 			writeStatus(Status.INTERNAL_SERVER_ERROR, channel);
 			writeString("", channel);
@@ -48,38 +35,25 @@ class HttpHandler {
 		}
 	}
 	
-	private void writeStatus(Status status,SocketChannel channel) {
-		writeString("HTTP/1.1 %d %s".formatted(status.getStatusCode(), status.getReasonPhrase()), channel);
-		writeString("", channel);
-	}
-	
-	
-
 	private CompletableFuture<Void> transferFile(String resource, SocketChannel channel) {
-		return CompletableFuture.runAsync(() -> doTransferFile(resource, channel));
+		return null;
 	}
 
 	private void doTransferFile(final String resource, SocketChannel channel) {
-		try {
-			String resourcePath;
-			if (resource.length() > 1) {
-				resourcePath = resource.substring(1);
-			} else {
-				resourcePath = resource;
-			}
-			RandomAccessFile raf = new RandomAccessFile(root.resolve(Paths.get(resourcePath)).toFile(), "r");
-			
-			try(FileChannel fileChannel = raf.getChannel()) {
-				writeStatus(OK, channel);
-				fileChannel.transferTo(0, raf.length(), channel);
-			}  
-			
-		} catch (FileNotFoundException e) {
-			writeStatus(NOT_FOUND, channel);
-			writeString("%s %s".formatted(resource, NOT_FOUND.getReasonPhrase()),  channel);
-		} catch (IOException e) {
-			log.error("transfer", e);
-		} 
+		@SuppressWarnings("unused")
+		Path filePath = getFilePath(resource);
+		//TODO implement data transfer from file to socket
+	}
+
+	private Path getFilePath(String resource) {
+		//remove trailing '/' to relative path
+		String resourcePath;
+		if (resource.length() > 1) {
+			resourcePath = resource.substring(1);
+		} else {
+			resourcePath = resource;
+		}
+		return root.resolve(Paths.get(resourcePath));
 	}
 
 	private String getRequest(SocketChannel channel) throws IOException {
@@ -90,18 +64,11 @@ class HttpHandler {
 		return result;
 	}
 
-	private static String getResource(String readedData) {
-		try (Scanner scanner = new Scanner(readedData)) {
-			scanner.useDelimiter("\\s");
-			String method = scanner.next();
-			if (!method.equals("GET")) {
-				throw new UnsupportedOperationException(method);
-			}
-			return scanner.next();
-		}
+	private void writeStatus(Status status,SocketChannel channel) {
+		writeString("HTTP/1.1 %d %s".formatted(status.getStatusCode(), status.getReasonPhrase()), channel);
+		writeString("", channel);
 	}
-	
-	
+
 	private void writeString(String value, SocketChannel socketChannel) {
 		buffer.put(value.getBytes());
 		buffer.put("\n".getBytes());
@@ -113,4 +80,15 @@ class HttpHandler {
 		}
 		buffer.clear();
 	}
+
+	private static String getResource(String readedData) {
+		try (Scanner scanner = new Scanner(readedData)) {
+			scanner.useDelimiter("\\s");
+			String method = scanner.next();
+			if (!method.equals("GET")) {
+				throw new UnsupportedOperationException(method);
+			}
+			return scanner.next();
+		}
+	}
 }

src/main/java/lab07/Main.java

@@ -2,10 +2,10 @@ package lab07;
 
 import java.io.IOException;
 import java.net.InetSocketAddress;
-import java.net.URI;
 import java.net.URISyntaxException;
 import java.nio.channels.ServerSocketChannel;
 import java.nio.channels.SocketChannel;
+import java.nio.file.Path;
 import java.nio.file.Paths;
 
 import lombok.extern.log4j.Log4j2;
@@ -13,6 +13,10 @@ import lombok.extern.log4j.Log4j2;
 @Log4j2
 public class Main {
 	public static void main(String[] args) throws IOException, URISyntaxException {
+		int port = 8000;
+		String basePathName = "..";
+		Path basePath = Paths.get(basePathName).toRealPath();
+		log.info("Started server on http://localhost:{} with base path {}", port, basePath);
 		HttpHandler handler = new HttpHandler(Paths.get("."));
 		ServerSocketChannel ssc = ServerSocketChannel.open();
 		ssc.bind(new InetSocketAddress(8000));