/*
* Copyright 2007-2008 the original author or authors.
*
* 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.impalaframework.web.integration;
import java.io.IOException;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.impalaframework.util.ObjectUtils;
import org.impalaframework.web.servlet.invocation.ModuleHttpServiceInvoker;
import org.impalaframework.web.servlet.invoker.HttpServiceInvoker;
import org.impalaframework.web.servlet.wrapper.RequestModuleMapping;
/**
* Servlet that forwards to servlet and/or filters registered internally within module.
*
* @author Phil Zoio
*/
public class ModuleProxyServlet extends BaseModuleProxyServlet {
private static final long serialVersionUID = 1L;
private static final Log logger = LogFactory.getLog(ModuleProxyServlet.class);
protected void processMapping(
ServletContext context,
HttpServletRequest request,
HttpServletResponse response,
RequestModuleMapping moduleMapping) throws ServletException,
IOException {
String attributeName = ModuleHttpServiceInvoker.class.getName()+ "."+ moduleMapping.getModuleName();
Object attribute = context.getAttribute(attributeName);
HttpServiceInvoker invoker = ObjectUtils.cast(attribute, HttpServiceInvoker.class);
if (logger.isInfoEnabled()) {
if (invoker != null) {
logger.info("Invoker for attribute '" + attributeName + "': " + invoker);
}
else {
if (logger.isDebugEnabled()) logger.debug("No invoker found for attribute '" + attributeName);
}
}
if (invoker != null) {
HttpServletRequest wrappedRequest = wrappedRequest(request, context, moduleMapping);
invoker.invoke(wrappedRequest, response, null);
}
}
}