Programming Flash Communication Server

This is the Title of the Book, eMatter Edition

Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.

Running a Simple Hello World Test Script

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Example 4-2 shows a short main.asc script that is the SSAS implementation of

helloWorld. It demonstrates all the standard event handler methods of the

application object.

With this example code in mind, let’s take a closer look at the most important event

handling methods of the

application object. These are invoked automatically when

the application starts, when a client attempts to connect, when a client disconnects,

or when the application is supposed to shut down.

application.onAppStart( )

When an application instance is accessed the first time, the script is compiled and

any global code (i.e., code outside the context of an event handler) is executed. After

that, the application.onAppStart( ) method is called. In Example 4-2, the

application.name property is used to output the name of the instance that has been

Example 4-2. A simple server-side helloWorld test script

application.onAppStart = function ( ) {

trace("onAppStart> " + application.name + " is starting at " + new Date( ));

};

application.onStatus = function (info) {

trace("onStatus> info.level: " + info.level + ", info.code: " + info.code);

trace("onStatus> info.description: " + info.description);

trace("onStatus> info.details: " + info.details);

};

application.onConnect = function (client, userName, password) {

client.userName = userName;

client.writeAccess = "/public";

client.readAccess = "/";

application.acceptConnection(client);

trace("onConnect> client.ip: " + client.ip);

trace("onConnect> client.agent: " + client.agent);

trace("onConnect> client.referrer: " + client.referrer);

trace("onConnect> client.protocol: " + client.protocol);

};

application.onDisconnect = function (client) {

trace("onDisconnect> client.userName: " + client.userName)

trace("onDisconnect> disconnecting at: " + new Date( ));

};

application.onAppStop = function (info) {

trace("onAppStop> application.name: " + application.name);

trace("onAppStop> stopping at " + new Date( ));

trace("onAppStop> info.level: " + info.level);

trace("onAppStop> info.code: " + info.code);

trace("onAppStop> info.description: " + info.description);

};