zdm/envoy
zdm/envoy
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Merge pull request #1 from informatik-ag-ngl/f/ui

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Added ChatWindow
This commit is contained in:
DieGurke 2019-10-05 12:55:36 +02:00 committed by GitHub
commit 5610174340
3 changed files with 264 additions and 47 deletions
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47
src/main/java/envoy/EnvoyClient.java
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package envoy;
import java.time.Instant;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Response;
import javax.xml.bind.JAXBException;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import envoy.schema.Message;
import envoy.schema.ObjectFactory;
/**
* Project: <strong>envoy-client</strong><br>
* File: <strong>EnvoyClient.java</strong><br>
* Created: <strong>28 Sep 2019</strong><br>
* Author: <strong>Kai S. K. Engelbart</strong>
*/
public class EnvoyClient {
public static void main(String[] args) throws DatatypeConfigurationException, JAXBException {
ObjectFactory factory = new ObjectFactory();
Message.MetaData metaData = factory.createMessageMetaData();
metaData.setSender("Kai");
metaData.setRecipient("Maxi");
metaData.setState(false);
metaData.setDate(DatatypeFactory.newInstance().newXMLGregorianCalendar(Instant.now().toString()));
Message.Content content = factory.createMessageContent();
content.setType("text");
content.setText("Hello, World");
Message message = factory.createMessage();
message.setMetaData(metaData);
message.getContent().add(content);
Client client = ClientBuilder.newClient();
WebTarget target = client.target("http://localhost:8080/envoy-server/rest/message/send");
Response response = target.request().post(Entity.entity(message, "application/xml"));
response.close();
}
}

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src/main/java/envoy/client/EnvoyClient.java Normal file
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package envoy.client;
import java.time.Instant;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Response;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import envoy.schema.Message;
import envoy.schema.ObjectFactory;
/**
* Project: <strong>envoy-client</strong><br>
* File: <strong>EnvoyClient.java</strong><br>
* Created: <strong>28 Sep 2019</strong><br>
* Author: <strong>Kai S. K. Engelbart &amp; Maximilian K&aumlfer</strong>
*/
public class EnvoyClient {
private DatatypeFactory datatypeFactory;
public EnvoyClient() {
try {
datatypeFactory = DatatypeFactory.newInstance();
} catch (DatatypeConfigurationException e) {
e.printStackTrace();
}
}
/**
* Sends a message with text content to the server.<br>
* Because sending a request is a blocking operation, it is executed
* asynchronously.
*
* @param sender Name of the sender
* @param recipient Name of the recipient
* @param textContent Content (text) of the message
*/
public void sendMessage(Message message) {
new Thread(() -> {
// Print message XML to console
JAXBContext jc;
try {
jc = JAXBContext.newInstance("envoy.schema");
Marshaller m = jc.createMarshaller();
m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
m.marshal(message, System.out);
} catch (JAXBException e) {
e.printStackTrace();
}
// Send message
Client client = ClientBuilder.newClient();
WebTarget target = client.target("http://kske.feste-ip.net:43315/envoy-server/rest/message/send");
Response response = target.request().post(Entity.entity(message, "application/xml"));
System.out.println("Response code: " + response.getStatus());
response.close();
client.close();
}).start();
}
/**
* Creates a {@link Message} object serializable to XML.
*
* @param senderID The ID of the sender
* @param recipientID The ID of the recipient
* @param textContent The content (text) of the message
* @return Prepared {@link Message} object
*/
public Message createMessage(String senderID, String recipientID, String textContent) {
ObjectFactory factory = new ObjectFactory();
Message.MetaData metaData = factory.createMessageMetaData();
metaData.setSender(senderID);
metaData.setRecipient(recipientID);
metaData.setState(false);
metaData.setDate(datatypeFactory.newXMLGregorianCalendar(Instant.now().toString()));
Message.Content content = factory.createMessageContent();
content.setType("text");
content.setText(textContent);
Message message = factory.createMessage();
message.setMetaData(metaData);
message.getContent().add(content);
return message;
}
}

168
src/main/java/envoy/client/ui/ChatWindow.java Normal file
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package envoy.client.ui;
import java.awt.Color;
import java.awt.ComponentOrientation;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.border.EmptyBorder;
import envoy.client.EnvoyClient;
import envoy.schema.Message;
/**
* Project: <strong>envoy-client</strong><br>
* File: <strong>ChatWindow.java</strong><br>
* Created: <strong>28 Sep 2019</strong><br>
* Author: <strong>Maximilian K&aumlfer &amp; Kai S. K. Engelbart</strong>
*/
public class ChatWindow extends JFrame {
private static final long serialVersionUID = 6865098428255463649L;
private JPanel contentPane = new JPanel();
private EnvoyClient envoyClient = new EnvoyClient();
public DefaultListModel<String> listModel = new DefaultListModel<>();
public ChatWindow() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 600, 800);
setTitle("Envoy");
setLocationRelativeTo(null);
contentPane.setBackground(new Color(0, 0, 0));
contentPane.setForeground(Color.white);
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
GridBagLayout gbl_contentPane = new GridBagLayout();
gbl_contentPane.columnWidths = new int[] { 1, 1, 1 };
gbl_contentPane.rowHeights = new int[] { 1, 1, 1 };
gbl_contentPane.columnWeights = new double[] { 0.3, 1.0, 0.1 };
gbl_contentPane.rowWeights = new double[] { 0.05, 1, 0.07 };
contentPane.setLayout(gbl_contentPane);
JList<String> elementList = new JList<>();
elementList.setFocusTraversalKeysEnabled(false);
elementList.setSelectionForeground(new Color(255, 255, 255));
elementList.setSelectionBackground(new Color(102, 0, 153));
elementList.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
elementList.setForeground(new Color(255, 255, 255));
elementList.setBackground(new Color(51, 51, 51));
elementList.setModel(listModel);
elementList.setFont(new Font("Arial", Font.PLAIN, 17));
elementList.setFixedCellHeight(60);
elementList.setBorder(new EmptyBorder(5, 5, 5, 5));
JScrollPane scrollPane = new JScrollPane();
scrollPane.setForeground(new Color(0, 0, 0));
scrollPane.setBackground(new Color(51, 51, 51));
scrollPane.setViewportView(elementList);
scrollPane.setBorder(null);
GridBagConstraints gbc_scrollPane = new GridBagConstraints();
gbc_scrollPane.fill = GridBagConstraints.BOTH;
gbc_scrollPane.gridwidth = 2;
gbc_scrollPane.gridx = 1;
gbc_scrollPane.gridy = 1;
gbc_scrollPane.insets = new Insets(10, 10, 10, 10);
contentPane.add(scrollPane, gbc_scrollPane);
// Message enter field
JTextArea messageEnterTextfield = new JTextArea();
messageEnterTextfield.setCaretColor(new Color(255, 255, 255));
messageEnterTextfield.setForeground(new Color(255, 255, 255));
messageEnterTextfield.setBackground(new Color(51, 51, 51));
messageEnterTextfield.setLineWrap(true);
messageEnterTextfield.setBorder(null);
messageEnterTextfield.setFont(new Font("Arial", Font.PLAIN, 17));
messageEnterTextfield.setBorder(new EmptyBorder(5, 5, 5, 5));
GridBagConstraints gbc_moveSelectionMessageEnterTextfield = new GridBagConstraints();
gbc_moveSelectionMessageEnterTextfield.fill = GridBagConstraints.BOTH;
gbc_moveSelectionMessageEnterTextfield.gridx = 1;
gbc_moveSelectionMessageEnterTextfield.gridy = 2;
gbc_moveSelectionMessageEnterTextfield.insets = new Insets(10, 10, 10, 10);
contentPane.add(messageEnterTextfield, gbc_moveSelectionMessageEnterTextfield);
// Post Button
JButton postButton = new JButton("Post");
postButton.setForeground(new Color(255, 255, 255));
postButton.setBackground(new Color(102, 51, 153));
postButton.setBorderPainted(false);
GridBagConstraints gbc_moveSelectionPostButton = new GridBagConstraints();
gbc_moveSelectionPostButton.fill = GridBagConstraints.BOTH;
gbc_moveSelectionPostButton.gridx = 2;
gbc_moveSelectionPostButton.gridy = 2;
gbc_moveSelectionPostButton.insets = new Insets(10, 10, 10, 10);
contentPane.add(postButton, gbc_moveSelectionPostButton);
postButton.addActionListener((evt) -> {
if (!messageEnterTextfield.getText().isEmpty()) try {
final Message message = envoyClient.createMessage("Kai", "Maxi", messageEnterTextfield.getText());
envoyClient.sendMessage(message);
appendMessageToChat(message);
messageEnterTextfield.setText("");
} catch (Exception e) {
JOptionPane.showMessageDialog(this,
"An exception occured while sending a message. See the log for more details.",
"Exception occured",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
});
}
/**
* Extracts the first text content from a message.
*
* @param message The message from which to return the text content
* @return The first content of type 'text'
*/
public String getFirstTextContent(Message message) {
return message.getContent().get(0).getText();
}
/**
* Appends a message with sender and message content to the message list.
*
* @param message The message to append
*/
private void appendMessageToChat(Message message) {
listModel.addElement("<html>" + "<p style=\"color:#d2d235\"> <b> <small>" + message.getMetaData().getSender()
+ "</b> </small>" + "<br>" + "<p style=\"color:white\">" + getFirstTextContent(message)
+ "</span></html>");
}
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
try {
ChatWindow frame = new ChatWindow();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
});
}
}