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Standalone Jersey JAX-RS asynchronous server-side processing example client.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012-2015 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
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* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
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*/
package org.glassfish.jersey.examples.server.async;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.InvocationCallback;
import javax.ws.rs.client.WebTarget;
import javax.swing.JLabel;
/**
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public class MainWindow extends javax.swing.JFrame {
/**
* Creates new form MainWindow
*/
public MainWindow() {
initComponents();
uriField.setText(Main.Config.DEFAULT_BASE_URI);
((FlowLayout) messagePanel.getLayout()).setAlignment(FlowLayout.LEADING);
messagePanel.removeAll();
messagePanel.revalidate();
}
/**
* This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// //GEN-BEGIN:initComponents
private void initComponents() {
syncAsyncSwitchGroup = new javax.swing.ButtonGroup();
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
requestCountField = new javax.swing.JTextField();
syncRadio = new javax.swing.JRadioButton();
asyncRadio = new javax.swing.JRadioButton();
uriField = new javax.swing.JTextField();
jLabel2 = new javax.swing.JLabel();
runButton = new javax.swing.JButton();
messagePanel = new javax.swing.JPanel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jPanel2 = new javax.swing.JPanel();
finishStatusLabel = new javax.swing.JLabel();
successRateStatusLabel = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setMaximumSize(new java.awt.Dimension(480, 600));
setMinimumSize(new java.awt.Dimension(480, 600));
setResizable(false);
jLabel1.setText("Number of requests");
requestCountField.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
requestCountField.setText("10");
syncAsyncSwitchGroup.add(syncRadio);
syncRadio.setText("sync");
syncAsyncSwitchGroup.add(asyncRadio);
asyncRadio.setSelected(true);
asyncRadio.setText("async");
uriField.setText("jTextField2");
jLabel2.setText("Base web app URL");
runButton.setText("Run");
runButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
runButtonActionPerformed(evt);
}
});
org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jLabel1)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jLabel2))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.UNRELATED)
.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel1Layout.createSequentialGroup()
.add(requestCountField)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(syncRadio)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(asyncRadio)
.add(24, 24, 24)
.add(runButton))
.add(jPanel1Layout.createSequentialGroup()
.add(uriField)
.addContainerGap())))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(uriField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(jLabel2))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(requestCountField, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(jLabel1)
.add(syncRadio)
.add(asyncRadio)
.add(runButton)))
);
messagePanel.setBorder(javax.swing.BorderFactory.createEtchedBorder());
jLabel3.setBackground(new java.awt.Color(255, 255, 0));
jLabel3.setText(" ");
jLabel3.setToolTipText("Running...");
jLabel3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
jLabel3.setOpaque(true);
messagePanel.add(jLabel3);
jLabel4.setBackground(new java.awt.Color(255, 255, 0));
jLabel4.setText(" ");
jLabel4.setToolTipText("Running...");
jLabel4.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
jLabel4.setOpaque(true);
messagePanel.add(jLabel4);
finishStatusLabel.setText(" ");
successRateStatusLabel.setText(" ");
org.jdesktop.layout.GroupLayout jPanel2Layout = new org.jdesktop.layout.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.add(jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(finishStatusLabel, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(successRateStatusLabel, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addContainerGap())
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.add(finishStatusLabel)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(successRateStatusLabel)
.addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
.add(jPanel2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(org.jdesktop.layout.GroupLayout.LEADING, jPanel1,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.add(messagePanel, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 468,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.addContainerGap()
.add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jPanel2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(messagePanel, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 456, Short.MAX_VALUE)
.addContainerGap())
);
pack();
}// //GEN-END:initComponents
private void runButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_runButtonActionPerformed
final Main.Config config = new Main.Config(uriField.getText(), syncRadio.isSelected(),
Integer.parseInt(requestCountField.getText()));
runButton.setEnabled(false);
finishStatusLabel.setText(" ");
successRateStatusLabel.setText(" ");
messagePanel.removeAll();
messagePanel.revalidate();
messagePanel.repaint();
Executors.newSingleThreadExecutor().submit(new Runnable() {
@Override
public void run() {
sendMessages(config);
}
});
}//GEN-LAST:event_runButtonActionPerformed
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
// try {
// for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
// if ("Nimbus".equals(info.getName())) {
// javax.swing.UIManager.setLookAndFeel(info.getClassName());
// break;
// }
// }
// } catch (ClassNotFoundException ex) {
// java.util.logging.Logger.getLogger(MainWindow.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
// } catch (InstantiationException ex) {
// java.util.logging.Logger.getLogger(MainWindow.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
// } catch (IllegalAccessException ex) {
// java.util.logging.Logger.getLogger(MainWindow.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
// } catch (javax.swing.UnsupportedLookAndFeelException ex) {
// java.util.logging.Logger.getLogger(MainWindow.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
// }
//
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
final MainWindow mainWindow = new MainWindow();
mainWindow.setLocationRelativeTo(null);
mainWindow.setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JRadioButton asyncRadio;
private javax.swing.JLabel finishStatusLabel;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel messagePanel;
private javax.swing.JTextField requestCountField;
private javax.swing.JButton runButton;
private javax.swing.JLabel successRateStatusLabel;
private javax.swing.ButtonGroup syncAsyncSwitchGroup;
private javax.swing.JRadioButton syncRadio;
private javax.swing.JTextField uriField;
// End of variables declaration//GEN-END:variables
private final Color PROGRESS_COLOR = new Color(255, 255, 0);
private final Color ERROR_COLOR = new Color(255, 0, 0);
private final Color SUCCESS_COLOR = new Color(0, 255, 0);
private JLabel createRequestStatusLabel() {
final JLabel label = new JLabel(" ");
invokeAndWait(new Runnable() {
@Override
public void run() {
label.setBackground(PROGRESS_COLOR);
label.setToolTipText("Running...");
label.setBorder(javax.swing.BorderFactory.createLineBorder(new Color(0, 0, 0)));
label.setOpaque(true);
messagePanel.add(label);
messagePanel.revalidate();
}
});
return label;
}
private void invokeAndWait(Runnable event) {
try {
EventQueue.invokeAndWait(event);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private void sendMessages(final Main.Config config) {
// Creating JAX-RS client
final Client client = ClientBuilder.newClient();
// Targeting echo resource at URI "/long-running/(sync|async)/{echo}"
final WebTarget echoResource = client.target(config.baseUri).path("long-running/{mode}/{echo}")
.resolveTemplate("mode", (config.sync) ? "sync" : "async");
final CountDownLatch latch = new CountDownLatch(config.requests);
final AtomicInteger requestCounter = new AtomicInteger(0);
final long tic = System.currentTimeMillis();
for (int i = 0; i < config.requests; i++) {
final int reqId = i;
final JLabel requestStatusLabel = createRequestStatusLabel();
echoResource.resolveTemplate("echo", reqId).request().async().get(new InvocationCallback() {
private final AtomicInteger retries = new AtomicInteger(0);
@Override
public void completed(final String response) {
invokeAndWait(new Runnable() {
@Override
public void run() {
final String requestId = Integer.toString(reqId);
if (requestId.equals(response)) {
requestStatusLabel.setBackground(SUCCESS_COLOR);
requestStatusLabel.setToolTipText(requestId);
requestCounter.incrementAndGet();
} else {
requestStatusLabel.setBackground(ERROR_COLOR);
requestStatusLabel.setToolTipText(String.format("Echo response '%s' not equal to request '%s'",
response, requestId));
}
latch.countDown();
}
});
}
@Override
public void failed(final Throwable error) {
if (error.getCause() instanceof IOException && retries.getAndIncrement() < 3) {
// resend
echoResource.resolveTemplate("echo", reqId).request().async().get(this);
} else {
invokeAndWait(new Runnable() {
@Override
public void run() {
requestStatusLabel.setBackground(ERROR_COLOR);
requestStatusLabel.setToolTipText(String.format("Request '%d' has failed: %s",
reqId, error.toString()));
latch.countDown();
}
});
}
}
});
}
try {
if (!latch.await(60, TimeUnit.SECONDS)) {
System.out.println("Waiting for requests to complete has timed out.");
}
} catch (InterruptedException e) {
System.out.println("Waiting for requests to complete has been interrupted.");
}
final long toc = System.currentTimeMillis();
invokeAndWait(new Runnable() {
@Override
public void run() {
finishStatusLabel.setText(String.format("Execution finished in %d ms.", toc - tic));
successRateStatusLabel.setText(String.format("Success rate: %6.2f %%",
((double) requestCounter.get() / config.requests) * 100));
}
});
client.close();
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
runButton.setEnabled(true);
}
});
}
}
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