In one of the projects I am working on , we are using Flex ,Spring BlazeDs integration . Initially we configured the RemoteObject using dynamically created AMFChannel. Later on due to some changing requirements , we changed to read the ChannelSet definition and endpoint URL mapping from services-config.xml. Thought many of the Flex developers may be looking for something like this and hence sharing what needs to be done.
RemoteObject with dynamic AMFChannel and ChannelSet.
1) My services-config.xml has following channel definition. (As I am using Flex –Spring- BlazeDs inetgeration hence the spring/messagebroker/amf )
<channels>
<channel-definition id="my-amf" class="mx.messaging.channels.AMFChannel">
<endpoint url="http://{server.name}:{server.port}/{context.root}/spring/messagebroker/amf"
class="flex.messaging.endpoints.AMFEndpoint"/>
<properties>
<record-message-times>true</record-message-times>
<record-message-sizes>false</record-message-sizes>
</properties>
</channel-definition>
</channels>
2) Create dynamic AMFChannel and ChannelSet
var amfChannel = new AMFChannel("myamf", “/DemoApp/spring/messagebroker/amf”);
where DemoApp is the context-root of my application. One can also store the above URI into a properties file and use ResourceManager to get the string at runtime, rather using the hardcoding.
var channelSet = new ChannelSet();
channelSet.addChannel(amfChannel);
3) Create RemoteObject
Have created a public function which returns a RemoteObject instance .
The destination is the id of the destination mentioned in services-config.xml or incase of spring-blazeDs integration it’s the bean id defined in applicationContext.xml.
public function getService(destination:String):RemoteObject
{
var remoteService:RemoteObject = new RemoteObject();
//reference to channelset we created dynamically in step 2.
remoteService.channelSet = this.channelSet ;
remoteService.destination = destination ;
remoteService.showBusyCursor = true ;
return remoteService ;
}
RemoteObject with AMFChannel and ChannelSet.defined in services-config.xml
1) Services-config.xml , we difine a channel-definition like below.
<channel-definition id="demoApp-amf"
class="mx.messaging.channels.AMFChannel">
<endpoint url="http://{server.name}:{server.port}/DemoApp/spring/messagebroker/amf"
class="flex.messaging.endpoints.AMFEndpoint"/>
<properties>
<record-message-times>false</record-message-times>
<record-message-sizes>false</record-message-sizes>
</properties>
</channel-definition>
2) Create AMFChannel and Channel set from entry provided in Services-config.xml
var channeled:String = “demoApp-amf”;
var amfChannel:AMFChannel = null ;
try{
if(ServerConfig.getChannel(channelId)!=null){
amfChannel = new AMFChannel(channelId,ServerConfig.getChannel(channelId).endpoint);
}
}catch(error : InvalidChannelError){}
var channelSet = new ChannelSet();
channelSet.addChannel(amfChannel);
3) Create RemoteObject
Have created a public function which returns a RemoteObject instance .
The destination is the id of the destination mentioned in services-config.xml or incase of spring-blazeDs integration it’s the bean id defined in applicationContext.xml.
public function getService(destination:String):RemoteObject
{
var remoteService:RemoteObject = new RemoteObject();
//reference to channelset we created dynamically in step 2.
remoteService.channelSet = this.channelSet ;
remoteService.destination = destination ;
remoteService.showBusyCursor = true ;
return remoteService ;
}
