From 959e4385998f8f5695fc63f7fdc33808a5c2608e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Ko=C5=BEusznik?= <jan@kozusznik.cz>
Date: Sun, 28 Mar 2021 22:43:00 +0200
Subject: [PATCH] RemoteLoader
---
.gitignore | 4 +-
src/main/java/koz01/java2/lab08/App.java | 31 --------
.../java/koz01/java2/lab08/IndexReader.java | 61 ++++++++++++++++
.../java/koz01/java2/lab08/LocalLoader.java | 32 ++++++++
.../java2/lab08/LocalLoaderControler.java | 19 +++++
.../java/koz01/java2/lab08/RemoteLoader.java | 33 +++++++++
.../java2/lab08/RemoteLoaderControler.java | 73 +++++++++++++++++++
.../koz01/java2/lab08/LocalLoader.fxml | 16 ++++
.../koz01/java2/lab08/RemoteLoader.fxml | 21 ++++++
9 files changed, 258 insertions(+), 32 deletions(-)
delete mode 100644 src/main/java/koz01/java2/lab08/App.java
create mode 100644 src/main/java/koz01/java2/lab08/IndexReader.java
create mode 100644 src/main/java/koz01/java2/lab08/LocalLoader.java
create mode 100644 src/main/java/koz01/java2/lab08/LocalLoaderControler.java
create mode 100644 src/main/java/koz01/java2/lab08/RemoteLoader.java
create mode 100644 src/main/java/koz01/java2/lab08/RemoteLoaderControler.java
create mode 100644 src/main/resources/koz01/java2/lab08/LocalLoader.fxml
create mode 100644 src/main/resources/koz01/java2/lab08/RemoteLoader.fxml
diff --git a/.gitignore b/.gitignore
index 3771e04..4cd19ae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,4 +11,6 @@
*.ear
*.iml
-*.idea
\ No newline at end of file
+*.idea
+
+lab08.imgs
diff --git a/src/main/java/koz01/java2/lab08/App.java b/src/main/java/koz01/java2/lab08/App.java
deleted file mode 100644
index 237f340..0000000
--- a/src/main/java/koz01/java2/lab08/App.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package koz01.java2.lab08;
-
-import javafx.application.Application;
-import javafx.scene.Scene;
-import javafx.scene.layout.BorderPane;
-import javafx.stage.Stage;
-
-
-/**
- * JavaFX App
- */
-public class App extends Application {
-
- @Override
- public void start(Stage primaryStage) {
- try {
- BorderPane root = new BorderPane();
- Scene scene = new Scene(root,400,400);
- scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
- primaryStage.setScene(scene);
- primaryStage.show();
- } catch(Exception e) {
- e.printStackTrace();
- }
- }
-
- public static void main(String[] args) {
- launch();
- }
-
-}
\ No newline at end of file
diff --git a/src/main/java/koz01/java2/lab08/IndexReader.java b/src/main/java/koz01/java2/lab08/IndexReader.java
new file mode 100644
index 0000000..8ae3d52
--- /dev/null
+++ b/src/main/java/koz01/java2/lab08/IndexReader.java
@@ -0,0 +1,61 @@
+
+package koz01.java2.lab08;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.FileChannel;
+import java.nio.channels.ReadableByteChannel;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
+
+import javafx.scene.image.Image;
+import lombok.extern.log4j.Log4j2;
+
+@Log4j2
+public class IndexReader {
+
+ private static final String URL = "http://kozusznik.cz/resources/java2/";
+ private static final String IMAGE_NAME = "lab08.imgs";
+
+ public Image readImage(int index) {
+
+ try (FileChannel fc = FileChannel.open(getFile()))
+ {
+ byte[] data = getData(fc, index);
+ return new Image(new ByteArrayInputStream(data));
+ }
+ catch (IOException exc) {
+ log.error("read", exc);
+ return null;
+ }
+
+ }
+
+ private Path getFile() throws IOException {
+ Path LocalFile = Files.createTempFile(null, null).getParent().resolve(
+ IMAGE_NAME);
+ if (!Files.exists(LocalFile)) {
+ try (ReadableByteChannel in = Channels.newChannel(new URL(
+ URL + IMAGE_NAME).openStream());
+ FileChannel out = FileChannel.open(LocalFile,
+ StandardOpenOption.CREATE_NEW, StandardOpenOption.WRITE))
+ {
+ ByteBuffer bb = ByteBuffer.allocate(1024 * 1024);
+ while (0 <= in.read(bb)) {
+ bb.flip();
+ out.write(bb);
+ bb.clear();
+ }
+ }
+ }
+ return LocalFile;
+ }
+
+ private byte[] getData(FileChannel fc, int index) throws IOException {
+ return new byte[0];
+ }
+}
diff --git a/src/main/java/koz01/java2/lab08/LocalLoader.java b/src/main/java/koz01/java2/lab08/LocalLoader.java
new file mode 100644
index 0000000..2e68465
--- /dev/null
+++ b/src/main/java/koz01/java2/lab08/LocalLoader.java
@@ -0,0 +1,32 @@
+
+package koz01.java2.lab08;
+
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+/**
+ * JavaFX App
+ */
+public class LocalLoader extends Application {
+
+ @Override
+ public void start(Stage primaryStage) {
+ try {
+ Parent root = FXMLLoader.load(getClass().getResource("LocalLoader.fxml"));
+ Scene scene = new Scene(root);
+ primaryStage.setScene(scene);
+ primaryStage.show();
+ }
+ catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+
+ public static void main(String[] args) {
+ launch();
+ }
+
+}
diff --git a/src/main/java/koz01/java2/lab08/LocalLoaderControler.java b/src/main/java/koz01/java2/lab08/LocalLoaderControler.java
new file mode 100644
index 0000000..bba0791
--- /dev/null
+++ b/src/main/java/koz01/java2/lab08/LocalLoaderControler.java
@@ -0,0 +1,19 @@
+package koz01.java2.lab08;
+
+import javafx.fxml.FXML;
+import javafx.scene.control.TextField;
+import javafx.scene.image.ImageView;
+
+public class LocalLoaderControler {
+
+ @FXML
+ private ImageView imageView;
+
+ @FXML
+ private TextField indexTextField;
+
+ public void readButton() {
+ imageView.setImage(new IndexReader().readImage(Integer.parseInt(
+ indexTextField.getText())));
+ }
+}
diff --git a/src/main/java/koz01/java2/lab08/RemoteLoader.java b/src/main/java/koz01/java2/lab08/RemoteLoader.java
new file mode 100644
index 0000000..ef69d84
--- /dev/null
+++ b/src/main/java/koz01/java2/lab08/RemoteLoader.java
@@ -0,0 +1,33 @@
+
+package koz01.java2.lab08;
+
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+/**
+ * JavaFX App
+ */
+public class RemoteLoader extends Application {
+
+ @Override
+ public void start(Stage primaryStage) {
+ try {
+ Parent root = FXMLLoader.load(getClass().getResource(
+ "RemoteLoader.fxml"));
+ Scene scene = new Scene(root);
+ primaryStage.setScene(scene);
+ primaryStage.show();
+ }
+ catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+
+ public static void main(String[] args) {
+ launch();
+ }
+
+}
diff --git a/src/main/java/koz01/java2/lab08/RemoteLoaderControler.java b/src/main/java/koz01/java2/lab08/RemoteLoaderControler.java
new file mode 100644
index 0000000..8a11cb6
--- /dev/null
+++ b/src/main/java/koz01/java2/lab08/RemoteLoaderControler.java
@@ -0,0 +1,73 @@
+
+package koz01.java2.lab08;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.SocketChannel;
+
+import javafx.fxml.FXML;
+import javafx.scene.control.Button;
+import javafx.scene.control.TextField;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import lombok.extern.log4j.Log4j2;
+
+@Log4j2
+public class RemoteLoaderControler {
+
+ @FXML
+ private ImageView imageView;
+
+ @FXML
+ private TextField indexTextField;
+
+ @FXML
+ private Button load;
+
+ @FXML
+ private TextField adress;
+
+ @FXML
+ private TextField port;
+
+ private SocketChannel socketChannel;
+
+ public void readButton() {
+ try {
+ ByteBuffer bb = ByteBuffer.allocate(4);
+ bb.putInt(Integer.parseInt(indexTextField.getText()));
+ bb.flip();
+ socketChannel.write(bb);
+ bb.clear();
+ socketChannel.read(bb);
+ bb.flip();
+ int size = bb.getInt();
+ bb = ByteBuffer.allocate(size);
+ while (bb.hasRemaining()) {
+
+ socketChannel.read(bb);
+ }
+ bb.flip();
+ imageView.setImage(new Image(new ByteArrayInputStream(bb.array())));
+ }
+
+ catch (IOException exc) {
+ log.error("read", exc);
+ }
+
+ }
+
+ public void connect() {
+ try {
+ socketChannel = SocketChannel.open(new InetSocketAddress(adress.getText(),
+ Integer.parseInt(port.getText())));
+ indexTextField.setDisable(false);
+ load.setDisable(false);
+ }
+ catch (NumberFormatException | IOException exc) {
+ log.error("connect", exc);
+ }
+ }
+}
diff --git a/src/main/resources/koz01/java2/lab08/LocalLoader.fxml b/src/main/resources/koz01/java2/lab08/LocalLoader.fxml
new file mode 100644
index 0000000..b588d08
--- /dev/null
+++ b/src/main/resources/koz01/java2/lab08/LocalLoader.fxml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.control.TextField?>
+<?import javafx.scene.image.ImageView?>
+<?import javafx.scene.layout.AnchorPane?>
+
+<AnchorPane prefHeight="543.0" prefWidth="472.0" xmlns="http://javafx.com/javafx/15.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="koz01.java2.lab08.LocalLoaderControler">
+ <children>
+ <ImageView fx:id="imageView" fitHeight="472.0" fitWidth="472.0" pickOnBounds="true" preserveRatio="true" />
+ <TextField fx:id="indexTextField" layoutX="193.0" layoutY="503.0" prefHeight="26.0" prefWidth="73.0" />
+ <Label layoutX="122.0" layoutY="503.0" prefHeight="26.0" prefWidth="51.0" text="Index" />
+ <Button layoutX="299.0" layoutY="503.0" mnemonicParsing="false" onAction="#readButton" text="NaÄŤti" />
+ </children>
+</AnchorPane>
diff --git a/src/main/resources/koz01/java2/lab08/RemoteLoader.fxml b/src/main/resources/koz01/java2/lab08/RemoteLoader.fxml
new file mode 100644
index 0000000..366bd4c
--- /dev/null
+++ b/src/main/resources/koz01/java2/lab08/RemoteLoader.fxml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.control.TextField?>
+<?import javafx.scene.image.ImageView?>
+<?import javafx.scene.layout.AnchorPane?>
+
+<AnchorPane prefHeight="636.0" prefWidth="472.0" xmlns="http://javafx.com/javafx/15.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="koz01.java2.lab08.RemoteLoaderControler">
+ <children>
+ <ImageView fx:id="imageView" fitHeight="472.0" fitWidth="472.0" pickOnBounds="true" preserveRatio="true" />
+ <TextField fx:id="indexTextField" disable="true" layoutX="207.0" layoutY="592.0" prefHeight="26.0" prefWidth="73.0" />
+ <Label layoutX="81.0" layoutY="592.0" prefHeight="26.0" prefWidth="103.0" text="Index obrázku" />
+ <Button fx:id="load" disable="true" layoutX="306.0" layoutY="592.0" mnemonicParsing="false" onAction="#readButton" text="NaÄŤti" />
+ <Label layoutX="81.0" layoutY="531.0" text="Adresa" />
+ <TextField fx:id="adress" layoutX="149.0" layoutY="526.0" prefHeight="26.0" prefWidth="131.0" />
+ <TextField fx:id="port" layoutX="207.0" layoutY="560.0" prefHeight="26.0" prefWidth="73.0" />
+ <Label layoutX="81.0" layoutY="565.0" prefHeight="16.0" prefWidth="46.0" text="Port" />
+ <Button fx:id="connect" layoutX="306.0" layoutY="526.0" mnemonicParsing="false" onAction="#connect" text="Připojit" />
+ </children>
+</AnchorPane>
--
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