/*
* 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.isis.viewer.scimpi.servlet;
import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.isis.core.runtime.system.context.IsisContext;
import org.apache.isis.viewer.scimpi.dispatcher.Dispatcher;
import org.apache.isis.viewer.scimpi.dispatcher.UserManager;
import org.apache.isis.viewer.scimpi.dispatcher.debug.DebugUsers;
public class DispatcherServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private static final Logger LOG = LoggerFactory.getLogger(DispatcherServlet.class);
private Dispatcher dispatcher;
private DebugUsers debugUsers;
@Override
protected void doPost(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
LOG.info("http request from " + request.getRemoteAddr() + ": post " + request.getServletPath() + "?" + request.getQueryString());
process(request, response);
}
@Override
protected void doGet(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
LOG.info("http request from " + request.getRemoteAddr() + ": get " + request.getServletPath() + "?" + request.getQueryString());
process(request, response);
}
private void process(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
try {
final ServletRequestContext context = new ServletRequestContext(debugUsers);
context.startRequest(request, response, getServletContext());
dispatcher.process(context, request.getServletPath());
} catch (final RuntimeException e) {
LOG.error("servlet exception", e);
throw e;
}
}
@Override
public void init() throws ServletException {
super.init();
// TODO get directory from servlet parameter
ImageLookup.setImageDirectory(getServletContext(), "images");
debugUsers = new DebugUsers();
debugUsers.initialize();
dispatcher = new Dispatcher();
final Enumeration initParameterNames = getInitParameterNames();
while (initParameterNames.hasMoreElements()) {
final String name = (String) initParameterNames.nextElement();
final String value = getInitParameter(name);
dispatcher.addParameter(name, value);
}
final String dir = getServletContext().getRealPath("/WEB-INF");
dispatcher.init(dir, debugUsers);
new UserManager(IsisContext.getAuthenticationManager());
}
}