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package com.sun.grizzly.standalone.cometd;
import com.sun.grizzly.comet.CometAsyncFilter;
import com.sun.grizzly.arp.AsyncHandler;
import com.sun.grizzly.http.SelectorThread;
import com.sun.grizzly.http.servlet.ServletAdapter;
import com.sun.grizzly.arp.DefaultAsyncHandler;
import com.sun.grizzly.cometd.standalone.CometdAdapter;
import com.sun.grizzly.standalone.StandaloneMainUtil;
import com.sun.grizzly.tcp.Adapter;
import com.sun.grizzly.tcp.http11.GrizzlyAdapterChain;
import com.sun.grizzly.tcp.http11.GrizzlyResponse;
import com.sun.grizzly.util.ClassLoaderUtil;
import java.util.logging.Level;
import javax.servlet.Servlet;
/**
* Basic startup class used when Grizzly standalone is used
*
* @author Jeanfrancois Arcand
*/
public class Cometd extends StandaloneMainUtil {
static int port = 8080;
private String applicationLoc;
private String servletClassName;
public Cometd() {
}
public static void main( String args[] ) throws Exception {
Cometd main = new Cometd();
main.start(args);
}
@Override
public SelectorThread createSelectorThread(String[] args) throws Exception{
SelectorThread st = super.createSelectorThread(args);
st.setEnableAsyncExecution(true);
st.setBufferResponse(false);
st.setFileCacheIsEnabled(false);
st.setLargeFileCacheEnabled(false);
AsyncHandler asyncHandler = new DefaultAsyncHandler();
asyncHandler.addAsyncFilter(new CometAsyncFilter());
st.setAsyncHandler(asyncHandler);
SelectorThread.logger()
.log(Level.INFO,"Enabling Grizzly Bayeux support.");
return st;
}
@Override
public void printHelpAndExit() {
System.err.println("Usage: " + Cometd.class.getCanonicalName() + " [options]");
System.err.println();
System.err.println(" -p, --port=port Runs Bayeux Protocol on the specified port.");
System.err.println(" Default: 8080");
System.err.println(" -a, --apps=application path The static resourde folder or jar or war location.");
System.err.println(" Default: .");
System.err.println(" -h, --help Show this help message.");
System.exit(1);
}
@Override
public boolean parseOptions(String[] args) {
// parse options
for (int i = 0; i < args.length - 1; i++) {
String arg = args[i];
if("-h".equals(arg) || "--help".equals(arg)) {
printHelpAndExit();
} else if("-a".equals(arg)) {
i ++;
applicationLoc = args[i];
} else if(arg.startsWith("--application=")) {
applicationLoc = arg.substring("--application=".length(), arg.length());
} else if ("-p".equals(arg)) {
i ++;
setPort(args[i]);
} else if (arg.startsWith("--port=")) {
String num = arg.substring("--port=".length(), arg.length());
setPort(num);
}
}
if(applicationLoc == null) {
System.err.println("Illegal War|Jar file or folder location.");
printHelpAndExit();
}
if (args.length > 4){
servletClassName = args[args.length - 1];
}
return true;
}
@Override
public Adapter configureAdapter(SelectorThread st) {
GrizzlyAdapterChain adapter = new GrizzlyAdapterChain();
adapter.setHandleStaticResources(true);
adapter.setRootFolder(st.getWebAppRootPath());
adapter.setHandleStaticResources(true);
if (servletClassName != null){
ServletAdapter sa = new ServletAdapter(){
@Override
public void customizeErrorPage(GrizzlyResponse response,
String message, int errorCode){
// Just set the status to 404 so the next GrizzlyAdapter
// in the chain will be invoked.
response.setStatus(404);
}
};
Servlet servlet = (Servlet)ClassLoaderUtil.load(servletClassName);
String urlName = servletClassName.substring(servletClassName.lastIndexOf(".")+1);
System.out.println("INFO: ServletRequest will be serviced" +
" from http://host:port/"+ urlName);
sa.setContextPath("/" + urlName + "/");
if (servlet == null){
throw new IllegalStateException("Invalid Servlet ClassName");
} else {
System.out.println("Launching Servlet: " + servlet.getClass().getName());
sa.setServletInstance(servlet);
}
adapter.addGrizzlyAdapter(sa);
}
adapter.addGrizzlyAdapter(new CometdAdapter());
return adapter;
}
@Override
public String parseApplicationLocation(String[] args) {
return applicationLoc;
}
}