Added RequestManager and get method

src/main/java/com/rohitawate/restaurant/dashboard/DashboardController.java

@@ -15,24 +15,20 @@
  */
 package com.rohitawate.restaurant.dashboard;
 
-import java.io.BufferedReader;
-import java.io.FileNotFoundException;
-import java.io.FileReader;
+import com.jfoenix.controls.JFXSnackbar;
+import com.rohitawate.restaurant.requests.RequestManager;
 import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ResourceBundle;
 import java.util.logging.Level;
 import java.util.logging.Logger;
-import javafx.collections.FXCollections;
-import javafx.collections.ObservableList;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 import javafx.scene.control.ComboBox;
 import javafx.scene.control.TextArea;
 import javafx.scene.control.TextField;
+import javafx.scene.layout.BorderPane;
 
 /**
  * FXML Controller class
@@ -40,7 +36,8 @@ import javafx.scene.control.TextField;
  * @author Rohit Awate
  */
 public class DashboardController implements Initializable {
-
+	@FXML
+    private BorderPane dashboard;
 	@FXML
 	private TextField addressField;
 	@FXML
@@ -48,17 +45,43 @@ public class DashboardController implements Initializable {
 	@FXML
 	private TextArea responseArea;
 
+	private JFXSnackbar snackBar;
 	private final String[] httpMethods = {"GET", "POST", "PUT", "DELETE", "PATCH"};
+	private RequestManager requestManager;
 	
 	@Override
 	public void initialize(URL url, ResourceBundle rb) {
 		httpMethodBox.getItems().addAll(httpMethods);
 		httpMethodBox.setValue("GET");
 		responseArea.wrapTextProperty().set(true);
+		
+		requestManager = new RequestManager();
+		snackBar = new JFXSnackbar(dashboard);
 	}
 
 	@FXML
 	private void sendAction() {
+		try {
+			String address = addressField.getText();
+			if (address.equals("")) {
+				snackBar.show("Please enter a valid address", 7000);
+				return;
+			}
+			String response = "";
+			URL url = new URL(address);
+			switch (httpMethodBox.getValue()) {
+				case "GET":
+					response = requestManager.get(url);
+					break;
+			}
+			responseArea.setText(response);
+		} catch (MalformedURLException ex) {
+			Logger.getLogger(DashboardController.class.getName()).log(Level.SEVERE, null, ex);
+			snackBar.show("Server did not respond", 7000);
+		} catch (IOException ex) {
+			Logger.getLogger(DashboardController.class.getName()).log(Level.SEVERE, null, ex);
+			snackBar.show("Server did not respond", 7000);
+		}
 		
 	}
 }

src/main/java/com/rohitawate/restaurant/requests/RequestManager.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2018 Rohit Awate.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.rohitawate.restaurant.requests;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+/**
+ *
+ * @author Rohit Awate
+ */
+public class RequestManager {
+	public String get(URL target) throws MalformedURLException, IOException {
+		String response = "";
+		
+		HttpURLConnection conn = (HttpURLConnection) target.openConnection();
+		conn.setRequestMethod("GET");
+	
+		InputStream responseStream = conn.getInputStream();
+		BufferedReader responseReader =
+				new BufferedReader(new InputStreamReader(responseStream));
+		
+		String line;
+		while ((line = responseReader.readLine()) != null)
+			response += line + "\n";
+		
+		return response;
+	}
+}

src/main/resources/fxml/Dashboard.fxml

@@ -9,7 +9,7 @@
 <?import javafx.scene.layout.HBox?>
 <?import javafx.scene.layout.VBox?>
 
-<BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="720.0" prefWidth="1280.0" stylesheets="@../styles/dashboard.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.rohitawate.restaurant.dashboard.DashboardController">
+<BorderPane fx:id="dashboard" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="720.0" prefWidth="1280.0" stylesheets="@../styles/dashboard.css" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.rohitawate.restaurant.dashboard.DashboardController">
    <center>
       <VBox prefHeight="200.0" prefWidth="100.0" BorderPane.alignment="CENTER">
          <children>

src/main/resources/styles/dashboard.css

@@ -5,3 +5,12 @@
 #responseArea {
 	-fx-font-family: 'Liberation Mono';
 }
+
+.jfx-snackbar-content {
+    -fx-background-color: darkslategray;
+}
+
+.jfx-snackbar-toast {
+    -fx-text-fill: lightgray;
+    -fx-alignment: center;
+}