Tech Trek: A Software Engineer's Guide to Code and Beyond

The Third Party Server is *your* server and can actually be any process written in any language (for example, it can be a batch process or a cron script). The role of the 3rd party "server" is to send the message to the device. The Server will store (or update) the registrationID received into its local database. So, eventually the server will have registrationIDs from the devices. Your server needs to get a ClientLogin Auth token in order to talk to the C2DM servers. When it wants to push a message to the device. For ClientLogin Auth_Token:  Click Here To send a message to a particular device, the Server needs to POST to the C2DM Service the following 4 things:  The accountName which will be arxxus.pushapp@gmail.com . An authentication Token. The registrationID of the device it wants to send the message.  The message itself (Message limit 1024 Bytes) Code: // Create a new HttpClient and Post Header  HttpClient httpclient = new DefaultHttpClient()...

Life Cycle of Software Release : A software release lifecycle consists of different stages that report the stability of a piece of program and the amount of development is necessary before the final release. It is the distribution of software code, documentation, and support materials and composed of discrete phases that describe the software's maturity as it advances from planning and development to release and support phases. Each version of a product goes through a stage when new features are added, or the alpha stage, a stage that is being actively debugged, or the beta stage, and finally a stage in which all major errors have been removed, or the stable phase. Intermediate stages may even be recognized. The stages can be formally announced and regulated by the developers of the project, but sometimes the terms are used informally to report the status of a product. Pre-alpha: Pre-alpha refers to all activities performed during the software project prior to testing. These...

Google offers a cloud computing infrastructure called Google App Engine (App Engine) for creating and running web Applications. App Engine allows the dynamic allocation of system resources for an application based on the actual demand. Currently App Engine supports Python and Java based applications. But Google App engine have some Restrictions GoogleApp Engine runs a version of Java 6 but does not provide all Java classes, for example Swing and most AWT classes are not supported. You cannot use Threads   or frameworks which uses Threads. You can also not write to the filesystem and only read files which are part of your application. Certain "java.lang.System" actions, e.g. gc() or exit() will do nothing. You can not call JNI code. Reflection is possible for your own classes and standard Java classes but your cannot use reflection to access other classes outside your application. A servlet needs also to reply within 30 seconds otherwise a com.google.apphosting.api.Dead...