zdm/envoy
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Using JAX-RS to retrieve user list

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This commit is contained in:
Kai S. K. Engelbart
2019-10-07 17:35:57 +02:00
parent 09dba0fa4f
commit 5c495e5bd8
2 changed files with 60 additions and 123 deletions
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67
src/main/java/envoy/client/EnvoyClient.java
View File

@@ -1,12 +1,8 @@
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;
@@ -19,28 +15,12 @@ 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;
import envoy.schema.Users;
/**
* Project: <strong>envoy-client</strong><br>
@@ -144,43 +124,16 @@ public class EnvoyClient {
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",
public Users getUsersListXml() {
Client client = ClientBuilder.newClient();
WebTarget target = client.target(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();
Response response = target.request("application/xml").get();
Users users = response.readEntity(Users.class);
System.out.println("Response code: " + response.getStatus());
response.close();
client.close();
return users;
}
}

40
src/main/java/envoy/client/ui/ChatWindow.java
View File

@@ -7,9 +7,7 @@ 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;
@@ -19,6 +17,7 @@ import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.border.EmptyBorder;
import javax.xml.parsers.ParserConfigurationException;
@@ -28,6 +27,7 @@ import org.xml.sax.SAXException;
import envoy.client.EnvoyClient;
import envoy.schema.Message;
import envoy.schema.User;
import envoy.schema.Users;
/**
* Project: <strong>envoy-client</strong><br>
@@ -44,8 +44,6 @@ public class ChatWindow extends JFrame {
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);
@@ -129,8 +127,7 @@ 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);
@@ -138,20 +135,22 @@ 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", JOptionPane.ERROR_MESSAGE);
"Exception occured",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
});
new Thread(() -> loadUserJList()).start();
}
public void loadUserJList() {
Users users = envoyClient.getUsersListXml();
SwingUtilities.invokeLater(() -> {
// 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));
}
users.getUser().forEach(user -> userJListModel.addElement(user));
userJList.setModel(userJListModel);
GridBagConstraints gbc_userList = new GridBagConstraints();
@@ -164,6 +163,7 @@ public class ChatWindow extends JFrame {
System.out.println("test");
contentPane.add(userJList, gbc_userList);
});
}
/**
@@ -172,9 +172,7 @@ public class ChatWindow extends JFrame {
* @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();
}
public String getFirstTextContent(Message message) { return message.getContent().get(0).getText(); }
/**
* Appends a message with sender and message content to the message list.
@@ -187,18 +185,6 @@ public class ChatWindow extends JFrame {
+ "</span></html>");
}
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(() -> {
@@ -209,7 +195,5 @@ public class ChatWindow extends JFrame {
e.printStackTrace();
}
});
envoyClient.getUsersListXml();
System.out.println("asd");
}
}