Android Google cloud messaging Test server

Java GCM Testing Server

Today I will share how to create java Testing Application for send android GCM notifications to android client.There are lot of examples how to create android GCM client application but for testing the notification flow you need server.But I couldn't found any good example how to create java server.So I found Library for send notifications so i used that library and create simple swing application to send notification.

Sample Code

This is the code-sample which I have already pushed in to github location(https://github.com/sajith4u/android-gsm-sample).

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package dev.innova.sajith; import com.google.android.gcm.server.Message; import com.google.android.gcm.server.Result; import com.google.android.gcm.server.Sender; import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; public class MainClass { public static void main(String[] args) { System.out.println("starting gcm-server Application"); EventQueue.invokeLater(new Runnable() { @Override public void run() { init(); } }); } /** * Send Notification to server * @param apiKey * @param registrationId * @param title * @param messagetext * @return */ public static String send(String apiKey, String registrationId,String title,String messagetext) { Sender sender = new Sender(apiKey); Result result = null; Message message = new Message.Builder() .addData("message",messagetext) .addData("title", title) .build(); try { result = sender.send(message, registrationId, 2); System.out.println("Result : " + result.getMessageId()); System.out.println("Result ErrorCode : " + result.getErrorCodeName()); System.out.println("Result : " + result.getCanonicalRegistrationId()); } catch (IOException e) { e.printStackTrace(); } return result.toString(); } /** * Initialize the Swing form */ public static void init() { JFrame frame = new JFrame("Notification Sender"); frame.setSize(600, 400); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel panel = new JPanel(); frame.add(panel); placeComponents(panel); frame.setVisible(true); } /** * Add Items to Swing form * @param panel */ private static void placeComponents(JPanel panel) { panel.setLayout(null); JLabel apiKeyLabel = new JLabel("ApiKey"); apiKeyLabel.setBounds(50, 20, 100, 40); panel.add(apiKeyLabel); final JTextField apiKeyText = new JTextField(20); apiKeyText.setBounds(160, 20, 400, 40); panel.add(apiKeyText); JLabel registrationLabel = new JLabel("Registraion ID"); registrationLabel.setBounds(50, 70, 100, 40); panel.add(registrationLabel); final JTextField registrationText = new JTextField(20); registrationText.setBounds(160, 70, 400, 40); panel.add(registrationText); JLabel titleLabel = new JLabel("Title :"); titleLabel.setBounds(50, 120, 100, 40); panel.add(titleLabel); final JTextField titleText = new JTextField(20); titleText.setBounds(160, 120, 400, 40); panel.add(titleText); JLabel messageLabel = new JLabel("Message :"); messageLabel.setBounds(50, 170, 100, 40); panel.add(messageLabel); final JTextField messageText = new JTextField(20); messageText.setBounds(160, 170, 400, 40); panel.add(messageText); JButton resetButton = new JButton("Reset"); resetButton.setBounds(50, 220, 120, 40); panel.add(resetButton); JButton sendNotification = new JButton("Send"); sendNotification.setBounds(250, 220, 120, 40); panel.add(sendNotification); final JLabel statusLabel = new JLabel("status :"); statusLabel.setBounds(50, 270, 400, 100); panel.add(statusLabel); sendNotification.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { statusLabel.setText(""); String message = messageText.getText(); String apiKey = apiKeyText.getText(); String registrationKey = registrationText.getText(); String titleMessage = titleText.getText(); if((registrationKey.equals("")||registrationKey.equals(null))||(apiKey.equals("")||apiKey.equals(null))||(message.equals("")||message.equals(null))){ statusLabel.setText("Please Fill the above three Fields"); }else { statusLabel.setText("sending message ..........."); String response = send(apiKey,registrationKey,titleMessage,message); statusLabel.setText(response); } } }); resetButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { statusLabel.setText(""); messageText.setText(""); apiKeyText.setText(""); registrationText.setText(""); titleText.setText(""); } }); } }

For use this application you need API key which provided when creating application in Google could platform and registration Id.In the next post I will share simple android client application and how to test using this server.