org.apache.openaz.xacml.admin.XacmlAdminServlet.java Source code

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Here is the source code for org.apache.openaz.xacml.admin.XacmlAdminServlet.java

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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.openaz.xacml.admin;

import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.vaadin.annotations.Push;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.server.VaadinServlet;

import org.apache.openaz.xacml.rest.XACMLRest;

//
// The Servlet underlying the Vaadin Servlet
//
@Push
@WebServlet(value = "/*", description = "XACML Admin Console", asyncSupported = true, loadOnStartup = 1, initParams = {
        @WebInitParam(name = "XACML_PROPERTIES_NAME", value = "xacml.admin.properties", description = "The location of the properties file holding configuration information.") })
@VaadinServletConfiguration(productionMode = false, ui = XacmlAdminUI.class)
public class XacmlAdminServlet extends VaadinServlet {
    //
    // All static declarations
    //
    private static Log logger = LogFactory.getLog(XacmlAdminServlet.class); //NOPMD

    @Override
    public void init(ServletConfig servletConfig) throws ServletException {
        super.init(servletConfig);
        //
        // Common initialization
        //
        XACMLRest.xacmlInit(servletConfig);

        // Initialization
        XacmlAdminUI.servletInit();
    }

    @Override
    public void destroy() {
        XacmlAdminUI.servletDestroy();
        super.destroy();
    }

    /**
     * 
     * Called by:
     *    - PAP to notify Vaadin GUIs that something has changed
     * 
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // watch for notifications from the PAP
        if (request.getMethod().equals("PUT") && request.getParameter("PAPNotification") != null) {
            XacmlAdminUI.doPAPNotification(request, response);
            return;
        }

        // not a PAP notification, so let Vaadin handle normally
        super.service(request, response);
    }
}