MACROMEDIA FLASH MEDIA SERVER 2-SERVER MANAGEMENT ACTIONSCRIPT... Manuale di servizio

Server Management ActionScript

Language Reference

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Acknowledgments

Project Management: Suzanne Smith

Writing: Jody Bleyle

Managing Editor: Rosana Francescato

Editing: Geta Carlson

Production Manager: Adam Barnett

Media Design and Production: Aaron Begley, Paul Benkman, John Francis, Mario Reynoso

Special thanks to Erick Vera and the Flash Media Server engineering and QA teams.

First Edition: October 2005

Macromedia, Inc.

601 Townsend St.

San Francisco, CA 94103

Contents

Server Management ActionScript Language Reference . . . . . . . . 5

Using the Server Management ActionScript API . . . . . . . . . . . . . . . . . . .5

Establishing the connection to the server . . . . . . . . . . . . . . . . . . . . . . . . . . 5

A simple application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Information objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Method summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

addAdmin() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

addApp() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

addVHostAlias() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

approveDebugSession(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

changePswd() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

gc(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

getActiveInstances() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

getAdaptors() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

getAdminContext(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

getAdmins() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

getApps() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

getAppStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

getConfig() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

getConfig2() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

getGroupMembers() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

getGroupStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

getGroups() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

getInstanceStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

getIOStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

getLicenseInfo() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

getLiveStreams() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

getLiveStreamStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

getMsgCacheStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

getNetStreams(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

getNetStreamStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

getRecordedStreams() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

getRecordedStreamStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

getScriptStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

getServerStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

getServices() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

getSharedObjects() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

getSharedObjectStats(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

getUsers() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

getUserStats() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

getVHosts(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

getVHostStats(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

ping() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

reloadApp() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

removeAdmin() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

removeApp(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

removeVHostAlias() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

restartVHost(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

setConfig() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

setConfig2() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

startServer() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

startVHost() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

stopServer() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

stopVHost() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

unloadApp() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Server Management ActionScript

Language Reference

Macromedia Flash Media Server includes a set of advanced methods, the Server Management

ActionScript application programming interface (API), that lets you extend the management

console or make your own administration and monitoring tools by creating Macromedia

Flash applications.

This document describes the Server Management ActionScript API. For information about

ActionScript, see the ActionScript 2.0 Language Reference. For information about Flash Media

Server, see the Client-Side ActionScript Language Reference for Flash Media Server 2, the

Server-Side ActionScript Language Reference, and Managing Flash Media Server.

Using the Server Management

ActionScript API

To use the Server Management ActionScript API, you need to have Flash and Flash Media

Server installed, and you need to have administrative access to Flash Media Server. You should

be fluent in ActionScript and in creating Flash applications.

Establishing the connection to the server

Flash Media Server communicates on port 1935 (the default port). However, to use the Server

Management ActionScript API, you must connect to Flash Media Server through the

administration server on port 1111.

You establish a connection using the NetConnection.connect() method, passing in three

parameters: the URI of the host administration server, an administrator user name, and an

administrator password.

NOTE

This document assumes that you have not changed the default port number for the

administration server; if you have, use your valid port number instead of port 1111.

6 Server Management ActionScript Language Reference

When the administration server host to which you want to connect is a virtual host (one of

several services on the same machine), make sure to specify the virtual host’s domain name, or

IP Address, as part of the URI—for example, rtmp://www.myVhost.com/admin:1111. That

way, when you connect to the host machine, you connect to an instance of the server running

on your specified virtual host.

Only valid administrators, as defined in the Users.xml configuration file, can connect to the

server. You must specify two administrative parameters, the user name and the password for a

valid administrator, to the NetConnection.connect method.

The following example shows the call that lets the administrator MHill with password

635xjh27 connect to the server on localhost:

nc = new NetConnection();

nc.connect("rtmp://localhost:1111/admin", "MHill", "635xjh27");

To prevent unauthorized users from accessing the administration server, you should use a

firewall and limit access to the administration server port (port 1111). For more information

about security for Flash Media Server, see the security white papers at www.macromedia.com/

go/flashmediaserver_security_en.

Syntax example

To make a Server Management ActionScript API call, you’ll want to include a callback

handler and any required parameters in your code.

In the following example, the getAppStats method is called to retrieve the performance data

of a running application; the callback handler new receiveAppStats captures the result of

the call; and the value ChatApp is a required parameter that specifies the name of the

application:

nc = new NetConnection();

nc.connect("rtmp://localhost:1111/admin", "MHill", "635xjh27");

// Call getAppStats

nc.call("getAppStats", new receiveAppStats(), "ChatApp");

A simple application example 7

A simple application example

This section contains the code for a simple Flash application that calls the getAppStats

method. You can copy and paste this code into Flash to see how a simple call works.

In Flash, create an application with the following elements:

■An input field named Application Name with a border

■A button that calls the doGetAppStats() method (shown in the code sample that

follows)

■A multiline, dynamic text field called outputBox that has a border

■A scroll component next to the text field

This simple interface lets you test the Server Management ActionScript API.

Next, in the Actions panel, enter the sample ActionScript code that follows. Be sure to replace

admin_name and admin_pass with your valid administrator name and password.

/** Establishes the connection to Flash Media Server **/

nc = new NetConnection();

nc.connect("rtmp://localhost:1111/admin","admin_name","admin_pass");

/** Makes the API call, for example, "GetAppStats" **/

function doGetAppStats() {

function onGetAppStats()

{

this.onResult = function(info)

{

if (info.code != "NetConnection.Call.Success")

outputBox.text = "Call failed: " + info.description;

else {

outputBox.text = "Info for "+appName.text+ " returned:" + ¬

newline;

printObj(info, outputBox);

}

nc.call("getAppStats", new onGetAppStats(), appName.text);

}

// This function proceeds through an object, printing all values to the

// destination, including recursively printing objects within objects.

// The tabLevel parameter is used for cosmetic purposes.

function printObj(obj, destination, tabLevel)

NOTE

The continuation character (¬) indicates that the code continues to the next line; this

character should not appear in code.

8 Server Management ActionScript Language Reference

{

if (arguments.length < 2) {

trace("ERROR! you need to supply a text object to output to");

return;

}

if (arguments.length < 3)

tabLevel = 0;

for (var prop in obj) {

for (var i = 0; i < tabLevel; i++) // insert requested # of tab

characters

destination.text += "\t";

destination.text += prop + " = " + obj[prop] + newline;

if (typeof (obj[prop]) == "object") { // recursively call printObj

printObj(obj[prop], destination, tabLevel+1 );

}

// Alerts you if there are errors connecting to the server.nc.onStatus =

function(info) {

if (info.code == "NetConnection.Connect.Success") {

trace("Connected! The call should work")

} else {

// Use nc.isConnected to test condition of server

if (! nc.isConnected)

trace("NO netConnection to server. Call will not work");

}

Method summary 9

Information objects

All Server Management ActionScript API methods return data in an information object with

the following properties: level, code, timestamp, data, description, and details. All

information objects have level, code, and timestamp properties. Some methods have the

data property, which contains return data (often in an object or array), and the description

and details properties, which typically provide information about errors.

In addition to the information objects that are documented in the Client-Side ActionScript

Language Reference for Flash Media Server 2, the NetConnection class has information objects

that are specific to the Server Management ActionScript API. The following table lists the

code and level properties, as well as the meaning of commonly returned information

objects.

Method summary

The Server Management ActionScript API contains the following three types of methods:

■Queries let you monitor Flash Media Server, its applications, and specific instances of its

applications.

■Administrative commands let you perform administrative tasks for Flash Media Server,

such as adding administrative users and starting and stopping the server, virtual hosts, and

applications.

■Configuration commands: the getConfig2() command lets you view server

configuration keys, and the setConfig2() command lets you set values for the keys.

Code Level Meaning

NetConnection.Call.Success Status The call is successful.

This information object includes a data

property, which returns detailed information

in an object or array.

NetConnection.Admin.CommandFailed Error The method called is nonexistent.*

NetConnection.Call.Failed Error A general failure has occurred.*

NetConnection.Call.BadValue Error The value of a parameter is invalid.*

* This information object contains description and detail properties, which are strings that

provide a more specific reason for the failure.

10 Server Management ActionScript Language Reference

Some methods are available only to server administrators, as indicated by an asterisk (*) in the

description of each method; virtual host administrators cannot use these methods. In some

cases, virtual administrators can use a method with restrictions; these restrictions are described

in the dictionary entry for the method.

Queries for monitoring the server

The following table lists the methods you can use to monitor the server.

NOTE

Parameters in square brackets ([]) are optional; all other parameters are required. If you

don’t specify an optional parameter, a default value might be used, depending on the

method. For example, if you don’t specify a virtual host in the scope parameter, it is

assumed that you want to perform the command on the virtual host to which you

connected when you logged on to Flash Media Server.

Method Description

approveDebugSession() Approves a pending debug session’s request to connect to a

selected application.

getActiveInstances() Returns an array of strings that contains the names of all running

application instances on the connected virtual host.

getAdaptors() Returns an array of adaptor names.

getAdminContext() Returns the administrative context for the administrator

(administrator type, name of adaptor, and name of the virtual

host).

getAdmins() Returns all the administrators on the Flash Media Server.

getApps() Returns an array of strings that contains the names of all the

applications that are installed.

getAppStats() Returns aggregate information of all instances for an application.

getGroupMembers() Returns a list of the group members for a particular group.

getGroupStats() Returns statistics for a particular group connection.

getGroups() Returns a list of the group connections for a particular application

instance.

getInstanceStats() Returns detailed information about a single running instance of

an application.

getIOStats() Returns the I/O information: bytes in, bytes out, and so on.*

getLicenseInfo() Returns license key information.

getLiveStreams() Returns a list of all live streams currently publishing to a particular

application.

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