/*
* Copyright 2005 Joe Walker
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.directwebremoting.server.tomcat;
import javax.servlet.ServletConfig;
import javax.servlet.http.HttpServletRequest;
import org.apache.catalina.CometEvent;
import org.directwebremoting.extend.ContainerAbstraction;
import org.directwebremoting.extend.ServerLoadMonitor;
import org.directwebremoting.extend.Sleeper;
import org.directwebremoting.impl.ThreadDroppingServerLoadMonitor;
/**
* An abstraction of the servlet container that is specific to Tomcat
* @author Joe Walker [joe at getahead dot ltd dot uk]
*/
public class TomcatContainerAbstraction implements ContainerAbstraction
{
/* (non-Javadoc)
* @see org.directwebremoting.extend.ContainerAbstraction#isResponseCompleted(javax.servlet.http.HttpServletRequest)
*/
public boolean isResponseCompleted(HttpServletRequest request)
{
return false;
}
/* (non-Javadoc)
* @see org.directwebremoting.dwrp.ContainerAbstraction#isNativeEnvironment(javax.servlet.ServletConfig)
*/
public boolean isNativeEnvironment(ServletConfig servletConfig)
{
Object enabled = servletConfig.getServletContext().getAttribute(DwrCometProcessor.ATTRIBUTE_ENABLED);
return enabled != null && ((Boolean) enabled) == true;
}
/* (non-Javadoc)
* @see org.directwebremoting.dwrp.ContainerAbstraction#createSleeper(javax.servlet.http.HttpServletRequest)
*/
public Sleeper createSleeper(HttpServletRequest request)
{
CometEvent event = (CometEvent) request.getAttribute(DwrCometProcessor.ATTRIBUTE_EVENT);
return new TomcatSleeper(event);
}
/* (non-Javadoc)
* @see org.directwebremoting.dwrp.ContainerAbstraction#getServerLoadMonitorImplementation()
*/
public Class<? extends ServerLoadMonitor> getServerLoadMonitorImplementation()
{
return ThreadDroppingServerLoadMonitor.class;
}
}