Here is test code I wrote and use, at times, to test sending data to our client. It's a stripped down, bare bones Java example of a ServiceAdapter implementation. It removes a lot of unnecessary code from the existing examples on the web. It Compiles, works and I use it often in testing.
package your.package.structure.adapter;
import your.package.structure.device.DevicePort;
import flex.messaging.messages.AsyncMessage;
import flex.messaging.messages.Message;
import flex.messaging.services.MessageService;
import flex.messaging.services.ServiceAdapter;
import flex.messaging.util.UUIDUtils;
/**
* Test service adapter. Great for testing when you want to JUST SEND AN OBJECT and nothing
* else. This class has to stay in the main codebase (instead of test) because, when it's used
* it needs to be deployed to Tomcat.
* @author Kevin G
*
*/
public class TestServiceAdapter extends ServiceAdapter {
private boolean running;
private Message createTestMessage() {
DevicePort objectToSend = new DevicePort("RouterDevice");
final AsyncMessage msg = new AsyncMessage();
msg.setDestination(getClass().getSimpleName() + "Destination");
msg.setClientId(UUIDUtils.createUUID());
msg.setMessageId(UUIDUtils.createUUID());
msg.setBody(objectToSend);
return msg;
}
private void sendMessageToClients(Message msg) {
((MessageService) getDestination().getService()).pushMessageToClients(msg, false);
}
/**
* @see flex.messaging.services.ServiceAdapter#start()
*/
@Override
public void start(){
super.start();
Thread messageSender = new Thread(){
public void run(){
running = true;
while(running){
sendMessageToClients(createTestMessage());
secondsToSleep(3);
}
}
};
messageSender.start();
}
/**
* @see flex.messaging.services.ServiceAdapter#stop()
*/
@Override
public void stop(){
super.stop();
running = false;
}
/**
* This method is called when a producer sends a message to the destination. Currently,
* we don't care when that happens.
*/
@Override
public Object invoke(Message message) {
if (message.getBody().equals("stop")) {
running = false;
}
return null;
}
private void secondsToSleep(int seconds) {
try{
Thread.sleep(seconds * 1000);
}catch(InterruptedException e){
System.out.println("TestServiceAdapter Interrupted while sending messages");
e.printStackTrace();
}
}
}
You need to set a few properties in tomcat to get this to work.
In messaging-config.xml, you need to add an adapter and destination:
Add this line to the existing <adapters> tag:
<adapter-definition id="TestServiceAdapter" class="your.package.structure.adapter.TestServiceAdapter"/>
Add this destination to that same messaging-config.xml file:
<destination id="TestServiceAdapterDestination">
<channels>
<channel ref="my-streaming-amf"/>
</channels>
<adapter ref="TestServiceAdapter"/>
</destination>
Finally, make sure the "my-streaming-amf" channel is defined in services-config.xml, as in:
<channel-definition id="my-streaming-amf" class="mx.messaging.channels.StreamingAMFChannel">
<endpoint url="http://{server.name}:{server.port}/{context.root}/messagebroker/streamingamf" class="flex.messaging.endpoints.StreamingAMFEndpoint"/>
<properties>
<!-- you don't need to set all these properties, this is just what we set, included for illustration, only -->
<idle-timeout-minutes>0</idle-timeout-minutes>
<max-streaming-clients>10</max-streaming-clients>
<server-to-client-heartbeat-millis>5000</server-to-client-heartbeat-millis>
<user-agent-settings>
<user-agent match-on="Safari" kickstart-bytes="2048" max-streaming-connections-per-session="10"/>
<user-agent match-on="MSIE" kickstart-bytes="2048" max-streaming-connections-per-session="15"/>
<user-agent match-on="Firefox" kickstart-bytes="2048" max-streaming-connections-per-session="10"/>
</user-agent-settings>
</properties>
</channel-definition>
Note that in blazeDS, these two config files (messaging-config.xml and services-config.xml) are located in the following directory:
/blazeds/tomcat/webapps/[nameOfYourApp]/WEB-INF/flex/
where [nameOfYourApp] is the directory your webapp lives in.
I hope all that helps!
-kg