java-c2dm is a Java client for Google Cloud to Device Messaging (C2DM) The library aims to provide a highly scalable interface to the Apple server, while still being simple and modular.

The interface aims to require very minimal code to achieve the most common cases, but have it be reconfigurable so you can even use your own networking connections or XML library if necessary.

Links: Installation

• Javadocs
• Changelog

Features:

• Easy to use, high performance C2DM Service API
• Easy to extend and reuse
• Easy to integrate with dependency injection frameworks
• Easy to setup custom notification payloads
• Supports connection pooling
• Supports message delegates and callbacks

Sample Code

To send a notification, you can do it in two steps:

1. Setup the connection

    C2DMService service =
        C2DM.newService()
        .withAuthToken("serviceAuthenticationToken")
        .build();
   

2. Create and send the message

    C2DMNotification notification = C2DM.newNotification()
        .collapseKey("daily_message").delayWhileIdle(true)
        .build();
    String registrationId = "deviceRegistrationID";
    service.push(registrationId, notification);
   

That's it!

Features In the Making

• Auto retries (exponential back-off feature)
• More testing!

Sponsorship

This work is sponsored by Excitor A/S.

License

Licensed under the New 3-Clause BSD License.

Copyright 2011, Mahmood Ali.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above
    copyright notice, this list of conditions and the following disclaimer
    in the documentation and/or other materials provided with the
    distribution.
  * Neither the name of Mahmood Ali. nor the names of its
    contributors may be used to endorse or promote products derived from
    this software without specific prior written permission.

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Contact

Support mailing list: http://groups.google.com/group/java-apns-discuss