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/*
* 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.tuscany.runtime.webapp;
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import org.apache.tuscany.host.servlet.ServletRequestInjector;
import static org.apache.tuscany.runtime.webapp.Constants.RUNTIME_ATTRIBUTE;
/**
* A servlet that forwards requests intended for SCA services into the Tuscany runtime via a ServletRequestInjector.
* This servlet is typically mapped to relative paths beginning with <code>/services</code> in the <code>web.xml</code>
* <p/>
* TODO a better URL mapping scheme out to be implemented that corresponds to the SCA specification
*/
public class TuscanyServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private ServletRequestInjector requestInjector;
@Override
public void init(ServletConfig config) throws ServletException {
ServletContext servletContext = config.getServletContext();
WebappRuntime runtime = (WebappRuntime) servletContext.getAttribute(RUNTIME_ATTRIBUTE);
if (runtime == null) {
throw new ServletException("Tuscany runtime not configured for web application");
}
requestInjector = runtime.getRequestInjector();
}
@Override
public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
requestInjector.service(req, res);
}
}
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