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package org.jvnet.glassfish.comms.clb.proxy;
import com.sun.grizzly.tcp.Request;
import com.sun.grizzly.tcp.Response;
import org.jvnet.glassfish.comms.clb.proxy.config.ProxyConfig;
import org.jvnet.glassfish.comms.clb.proxy.http.layers.LoadBalancerLayer;
import org.jvnet.glassfish.comms.clb.proxy.http.layers.ParserLayer;
import org.jvnet.glassfish.comms.httplayers.HttpLayer;
import org.jvnet.glassfish.comms.httplayers.HttpLayerHandler;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author
*/
public class ProxyLayerHandler {
private Logger _logger;
/**
* Creates a new instance of ProxyLayerHandler
*/
public ProxyLayerHandler() {
_logger = ProxyConfig.getInstance().getLogger();
addBasicLayer(new ParserLayer());
if (ProxyConfig.getInstance().isTestMode()){
addLayer(new LoadBalancerLayer());
}
}
public void doInvoke(Request request, Response response) {
List<HttpLayer> layers = HttpLayerHandler.getInstance().getLayers();
if (layers.size() > 0) {
boolean status = true;
int i;
for (i = 0; i < layers.size(); i++) {
try {
HttpLayer layer = (HttpLayer) layers.get(i);
if (_logger.isLoggable(Level.FINEST)){
_logger.log(Level.FINEST,
"clb.proxy.before_invoking_layer", layer.getClass().getName());
}
status = layer.invoke(request, response);
if (_logger.isLoggable(Level.FINEST)){
_logger.log(Level.FINEST,
"clb.proxy.after_invoking_layer", layer.getClass().getName());
}
} catch (Exception ex) {
_logger.log(Level.SEVERE, "Setting 500 ", ex);
response.setStatus(500);
status = false;
}
if (!status) {
break;
}
}
} else {
_logger.log(Level.SEVERE, "clb.proxy.no_layers");
}
}
public void addLayer(HttpLayer nextlayer) {
if (_logger.isLoggable(Level.FINE)){
_logger.log(Level.FINE, "clb.proxy.adding_layer" +
nextlayer.getClass().getName());
}
HttpLayerHandler.getInstance().addLayer(nextlayer);
}
public void addLayers(List<HttpLayer> layers) {
for (HttpLayer layer : layers) {
if (_logger.isLoggable(Level.FINE)){
_logger.log(Level.FINE, "clb.proxy.adding_layer" +
layer.getClass().getName());
}
HttpLayerHandler.getInstance().addLayer(layer);
}
}
public void addBasicLayer(HttpLayer layer) {
HttpLayerHandler.getInstance().addBasicLayer(layer);
}
public int layerCount() {
return HttpLayerHandler.getInstance().getLayers().size();
}
}