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package com.sun.grizzly.rails;
import com.sun.enterprise.web.connector.grizzly.AsyncExecutor;
import com.sun.enterprise.web.connector.grizzly.AsyncFilter;
import com.sun.enterprise.web.connector.grizzly.async.DefaultAsyncHandler;
import com.sun.enterprise.web.connector.grizzly.standalone.StaticStreamAlgorithm;
import java.io.IOException;
import java.util.logging.Level;
import com.sun.enterprise.web.connector.grizzly.SelectorThread;
/**
* JRuby on rails implementation of Grizzly SelectorThread
* @author TAKAI Naoto
* @author Jeanfrancois Arcand
*/
public class RailsSelectorThread extends SelectorThread {
private final static String NUMBER_OF_RUNTIME =
"com.sun.grizzly.rails.numberOfRuntime";
/**
* Is Grizzly embedded in GlassFish.
*/
protected static boolean embeddedInGlassFish = false;
// Are we running embedded or not.
static {
try {
embeddedInGlassFish = (Class.forName("org.apache.coyote.tomcat5.Constants") != null);
} catch (Exception ex) {
; // Swallow
}
}
private String jrubyLib = null;
private int numberOfRuntime = 5;
private RubyObjectPool pool = null;
private String railsRoot = null;
public String getRailsRoot() {
return railsRoot;
}
@Override
public void initEndpoint() throws IOException, InstantiationException {
if (embeddedInGlassFish) {
railsRoot = System.getProperty("com.sun.aas.instanceRoot")
+ "/applications/rails";
}
setupSystemProperties();
initializeRubyRuntime();
setBufferResponse(false);
asyncExecution = true;
DefaultAsyncHandler asyncHandler = new DefaultAsyncHandler();
setAsyncHandler(asyncHandler);
RailAsyncFilter railAsyncFilter = new RailAsyncFilter();
railAsyncFilter.setRubyRuntimeQueue(pool.getRubyRuntimeQueue());
asyncHandler.addAsyncFilter(railAsyncFilter);
adapter = new RailsAdapter(pool,railAsyncFilter);
algorithmClassName = StaticStreamAlgorithm.class.getName();
super.initEndpoint();
}
public void setNumberOfRuntime(int numberOfRuntime) {
this.numberOfRuntime = numberOfRuntime;
}
public void setRailsRoot(String railsRoot) {
this.railsRoot = railsRoot;
}
@Override
public synchronized void stopEndpoint() {
pool.stop();
super.stopEndpoint();
}
protected void initializeRubyRuntime() {
pool = new RubyObjectPool();
pool.setNumberOfRuntime(numberOfRuntime);
pool.setJrubyLib(jrubyLib);
pool.setRailsRoot(railsRoot);
try {
pool.start();
} catch (Throwable t) {
logger.log(Level.WARNING, t.getMessage());
}
}
protected void setupSystemProperties() {
String jrubyBase = System.getProperty("jruby.base");
String jrubyHome = System.getProperty("jruby.home");
String jrubyShell = System.getProperty("jruby.shell");
String jrubyScript = System.getProperty("jruby.script");
if (System.getProperty(NUMBER_OF_RUNTIME) != null){
try{
numberOfRuntime = Integer.parseInt(
System.getProperty(NUMBER_OF_RUNTIME));
} catch (NumberFormatException ex){
SelectorThread.logger().log(Level.WARNING,
"Invalid number of Runtime");
}
}
if (jrubyBase == null) {
throw new IllegalStateException("Set system property jruby.base to JRuby directory");
}
if (jrubyHome == null) {
System.setProperty("jruby.home", jrubyBase);
}
if (jrubyShell == null) {
System.setProperty("jruby.shell", "");
}
if (jrubyScript == null) {
System.setProperty("jruby.script", "");
}
jrubyLib = System.getProperty("jruby.lib");
if (jrubyLib == null) {
jrubyLib = jrubyBase + "/lib";
System.setProperty("jruby.lib", jrubyLib);
}
}
}
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