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package com.sun.s1asdev.ejb.ejb32.mdb.ra;
import javax.resource.ResourceException;
import javax.resource.spi.ActivationSpec;
import javax.resource.spi.BootstrapContext;
import javax.resource.spi.ResourceAdapter;
import javax.resource.spi.ResourceAdapterInternalException;
import javax.resource.spi.endpoint.MessageEndpoint;
import javax.resource.spi.endpoint.MessageEndpointFactory;
import javax.transaction.xa.XAResource;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author David Blevins
*/
public class CommandResourceAdapter implements ResourceAdapter {
private Map<CommandActivationSpec, ActivatedEndpoint> endpoints = new HashMap<CommandActivationSpec, ActivatedEndpoint>();
public void start(BootstrapContext bootstrapContext) throws ResourceAdapterInternalException {
}
public void stop() {
}
public void endpointActivation(MessageEndpointFactory messageEndpointFactory, ActivationSpec activationSpec) throws ResourceException {
final CommandActivationSpec commandActivationSpec = (CommandActivationSpec) activationSpec;
final ActivatedEndpoint activatedEndpoint = new ActivatedEndpoint(messageEndpointFactory, commandActivationSpec);
endpoints.put(commandActivationSpec, activatedEndpoint);
final Thread thread = new Thread(activatedEndpoint);
thread.setDaemon(true);
thread.start();
}
public void endpointDeactivation(MessageEndpointFactory messageEndpointFactory, ActivationSpec activationSpec) {
endpoints.remove((CommandActivationSpec) activationSpec);
}
public XAResource[] getXAResources(ActivationSpec[] activationSpecs) throws ResourceException {
return new XAResource[0];
}
private static class ActivatedEndpoint implements Runnable {
private final MessageEndpointFactory factory;
private final List<Method> commands = new ArrayList<Method>();
private ActivatedEndpoint(MessageEndpointFactory factory, CommandActivationSpec spec) {
this.factory = factory;
final Method[] methods = factory.getEndpointClass().getMethods();
for (Method method : methods) {
if (method.isAnnotationPresent(Command.class)) {
commands.add(method);
}
}
}
public void run() {
pause();
try {
final MessageEndpoint endpoint = factory.createEndpoint(null);
try {
for (Method method : commands) {
endpoint.beforeDelivery(method);
try {
method.invoke(endpoint);
} finally {
endpoint.afterDelivery();
}
}
} finally {
endpoint.release();
}
} catch (Throwable e) {
e.printStackTrace();
// fail
}
}
/**
* Have to wait till the application is fully started
*/
private static void pause() {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
Thread.interrupted();
}
}
}
}