Added user list download

src/main/java/envoy/client/EnvoyClient.java

@@ -1,8 +1,12 @@
 package envoy.client;
 
+import java.io.BufferedReader;
 import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.StringReader;
 import java.time.Instant;
 import java.util.Arrays;
+import java.util.List;
 import java.util.Properties;
 
 import javax.ws.rs.client.Client;
@@ -15,9 +19,27 @@ import javax.xml.bind.JAXBException;
 import javax.xml.bind.Marshaller;
 import javax.xml.datatype.DatatypeConfigurationException;
 import javax.xml.datatype.DatatypeFactory;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
 
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.ClientProtocolException;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.util.EntityUtils;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+import envoy.client.ui.ChatWindow;
 import envoy.schema.Message;
 import envoy.schema.Messages;
+import envoy.schema.User;
+import envoy.schema.Users;
 import envoy.schema.ObjectFactory;
 
 /**
@@ -29,6 +51,7 @@ import envoy.schema.ObjectFactory;
 
 public class EnvoyClient {
 
+	ChatWindow chatWindow = new ChatWindow();
 	private ObjectFactory	objectFactory	= new ObjectFactory();
 	private DatatypeFactory	datatypeFactory;
 
@@ -120,4 +143,44 @@ public class EnvoyClient {
 		wrapper.getMessage().addAll(Arrays.asList(messages));
 		return wrapper;
 	}
+	
+	public void getUsersListXml () throws ClientProtocolException, IOException, SAXException, ParserConfigurationException {
+
+		/*HttpClient client = new DefaultHttpClient();
+		HttpGet request = new HttpGet(String.format("%s:%s/envoy-server/rest/user",
+				serverProps.getProperty("server"),
+				serverProps.getProperty("port")));
+		HttpResponse response = client.execute(request);
+		
+		BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
+		System.out.println(rd.readLine());
+		
+		String inputLine;
+		StringBuffer response1 = new StringBuffer();
+		while((inputLine = rd.readLine()) != null) {
+			response1.append(inputLine);
+		}
+		*/
+		
+		Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder()
+				.parse(String.format("%s:%s/envoy-server/rest/user",
+						serverProps.getProperty("server"),
+						serverProps.getProperty("port")));
+		NodeList errNodes = doc.getElementsByTagName("User");
+		
+		for (int i = 0; i < errNodes.getLength(); i++) {
+			if(errNodes.getLength() > 0) {
+				Element err = (Element)errNodes.item(i);
+				//System.out.println("Name: " + err.getElementsByTagName("Name").item(0).getTextContent());
+				//System.out.println("Id: " + err.getElementsByTagName("ID").item(0).getTextContent());
+				User user = new User();
+				user.setName(err.getElementsByTagName("Name").item(0).getTextContent());
+				user.setID(Long.parseLong(err.getElementsByTagName("ID").item(0).getTextContent()));
+				chatWindow.addUserToList(user);
+				
+			}
+		}
+		chatWindow.printUserListElements();
+		chatWindow.loadUserJList();
+	}
 }

src/main/java/envoy/client/ui/ChatWindow.java

@@ -7,6 +7,9 @@ import java.awt.Font;
 import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
 import java.awt.Insets;
+import java.awt.List;
+import java.io.IOException;
+import java.util.ArrayList;
 
 import javax.swing.DefaultListModel;
 import javax.swing.JButton;
@@ -17,9 +20,14 @@ import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.JTextArea;
 import javax.swing.border.EmptyBorder;
+import javax.xml.parsers.ParserConfigurationException;
+
+import org.apache.http.client.ClientProtocolException;
+import org.xml.sax.SAXException;
 
 import envoy.client.EnvoyClient;
 import envoy.schema.Message;
+import envoy.schema.User;
 
 /**
  * Project: <strong>envoy-client</strong><br>
@@ -32,10 +40,12 @@ public class ChatWindow extends JFrame {
 	private static final long serialVersionUID = 6865098428255463649L;
 
 	private JPanel contentPane = new JPanel();
-	private EnvoyClient	envoyClient	= new EnvoyClient();
+	private static EnvoyClient envoyClient = new EnvoyClient();
 
 	public DefaultListModel<String> listModel = new DefaultListModel<>();
 
+	public ArrayList<User> userList = new ArrayList<User>();
+
 	public ChatWindow() {
 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		setBounds(100, 100, 600, 800);
@@ -119,7 +129,8 @@ public class ChatWindow extends JFrame {
 		contentPane.add(postButton, gbc_moveSelectionPostButton);
 
 		postButton.addActionListener((evt) -> {
-			if (!messageEnterTextfield.getText().isEmpty()) try {
+			if (!messageEnterTextfield.getText().isEmpty())
+				try {
 					final Message message = envoyClient.createMessage("Kai", "Maxi", messageEnterTextfield.getText());
 					envoyClient.sendMessage(message);
 					appendMessageToChat(message);
@@ -127,11 +138,32 @@ public class ChatWindow extends JFrame {
 				} catch (Exception e) {
 					JOptionPane.showMessageDialog(this,
 							"An exception occured while sending a message. See the log for more details.",
-						"Exception occured",
+							"Exception occured", JOptionPane.ERROR_MESSAGE);
-						JOptionPane.ERROR_MESSAGE);
 					e.printStackTrace();
 				}
 		});
+
+	}
+
+	public void loadUserJList() {
+		// User List
+		JList<User> userJList = new JList<>();
+		DefaultListModel<User> userJListModel = new DefaultListModel<>();
+		for (int i = 0; i < userList.size(); i++) {
+			userJListModel.addElement(userList.get(i));
+		}
+		userJList.setModel(userJListModel);
+
+		GridBagConstraints gbc_userList = new GridBagConstraints();
+		gbc_userList.fill = GridBagConstraints.BOTH;
+		gbc_userList.gridx = 0;
+		gbc_userList.gridy = 1;
+
+		// gbc_userList.insets = new Insets(10, 10, 10, 10);
+		System.out.println(userJListModel.getSize());
+		System.out.println("test");
+
+		contentPane.add(userJList, gbc_userList);
 	}
 
 	/**
@@ -155,7 +187,20 @@ public class ChatWindow extends JFrame {
 				+ "</span></html>");
 	}
 
-	public static void main(String[] args) {
+	public void addUserToList(User user) {
+		userList.add(user);
+
+	}
+
+	public void printUserListElements() {
+		for (int i = 0; i < userList.size(); i++) {
+			System.out.println(userList.get(i).getName());
+			System.out.println(userList.get(i).getID());
+		}
+	}
+
+	public static void main(String[] args)
+			throws ClientProtocolException, IOException, SAXException, ParserConfigurationException {
 		EventQueue.invokeLater(() -> {
 			try {
 				ChatWindow frame = new ChatWindow();
@@ -164,5 +209,7 @@ public class ChatWindow extends JFrame {
 				e.printStackTrace();
 			}
 		});
+		envoyClient.getUsersListXml();
+		System.out.println("asd");
 	}
 }