/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.servicemix.http;
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.servicemix.jbi.container.JBIContainer;
import org.apache.servicemix.jbi.framework.ComponentMBeanImpl;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
/**
* This servlet is meant to be used when embedding ServiceMix in a web application
* so that so servicemix-http component will reuse the web container.
*
* @author gnodet
*/
public class HttpManagedServlet extends javax.servlet.http.HttpServlet {
public static final String CONTAINER_PROPERTY = "container";
public static final String CONTAINER_DEFAULT = "jbi";
public static final String COMPONENT_PROPERTY = "component";
public static final String COMPONENT_DEFAULT = "servicemix-http";
public static final String MAPPING_PROPERTY = "mapping";
private HttpProcessor processor;
public void init(ServletConfig config) throws ServletException {
super.init(config);
// Retrieve spring application context
ApplicationContext applicationContext = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
// Retrieve
String containerName = config.getInitParameter(CONTAINER_PROPERTY);
if (containerName == null) {
containerName = CONTAINER_DEFAULT;
}
JBIContainer container = (JBIContainer) applicationContext.getBean(containerName);
if (container == null) {
throw new IllegalStateException("Unable to find jbi container " + containerName);
}
String componentName = config.getInitParameter(COMPONENT_PROPERTY);
if (componentName == null) {
componentName = COMPONENT_DEFAULT;
}
ComponentMBeanImpl componentMBean = container.getComponent(componentName);
if (componentMBean == null) {
throw new IllegalStateException("Unable to find component " + componentName);
}
HttpComponent component = (HttpComponent) componentMBean.getComponent();
String mapping = config.getInitParameter(MAPPING_PROPERTY);
if (mapping != null) {
component.getConfiguration().setMapping(mapping);
}
processor = component.getMainProcessor();
}
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try {
processor.process(request, response);
} catch (IOException e) {
throw e;
} catch (ServletException e) {
throw e;
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new ServletException("Failed to process request: " + e, e);
}
}
}