Source Code Cross Referenced for DeviceBasePO.java in  » J2EE » Enhydra-Demos » com » lutris » airsent » presentation » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Enhydra Demos » com.lutris.airsent.presentation 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1999-2001 Lutris Technologies, Inc. All Rights
003:         * Reserved.
004:         * 
005:         * This source code file is distributed by Lutris Technologies, Inc. for
006:         * use only by licensed users of product(s) that include this source
007:         * file. Use of this source file or the software that uses it is covered
008:         * by the terms and conditions of the Lutris Enhydra Development License
009:         * Agreement included with this product.
010:         * 
011:         * This Software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
012:         * ANY KIND, either express or implied. See the License for the specific terms
013:         * governing rights and limitations under the License.
014:         * 
015:         * Contributor(s):
016:         * 
017:         * $Id: DeviceBasePO.java,v 1.1 2006-09-11 12:29:11 sinisa Exp $
018:         */
019:
020:        package com.lutris.airsent.presentation;
021:
022:        import com.lutris.airsent.presentation.*;
023:        import com.lutris.appserver.server.httpPresentation.*;
024:        import com.lutris.appserver.server.session.*;
025:        import com.lutris.appserver.server.Enhydra; //import com.lutris.xml.xmlc.*;
026:        import com.lutris.logging.*;
027:        import com.lutris.util.KeywordValueException;
028:        import com.lutris.appserver.server.user.User;
029:        import org.w3c.dom.*;
030:        import org.enhydra.wireless.wml.dom.WMLGoElement;
031:        import org.enhydra.xml.xmlc.XMLObject;
032:        import java.lang.reflect.*;
033:        import java.util.*;
034:        import java.lang.Throwable;
035:
036:        /**
037:         * This is the parent Presentaion object.  All presentation objects
038:         * should extend this class.
039:         * 
040:         * The run method looks for an event parameter and then calls
041:         * handle<EventName>.  If the "event" Parameter is not defined then
042:         * the handleDefault() method is called in your child class.
043:         * 
044:         * @author
045:         * @version
046:         */
047:        public abstract class DeviceBasePO extends BasePO {
048:
049:            /**
050:             * Handles default events.
051:             * 
052:             * 
053:             * @return
054:             * 
055:             * @throws HttpPresentationException
056:             * 
057:             */
058:            public abstract XMLObject handleDefault()
059:                    throws HttpPresentationException;
060:
061:            /**
062:             * This method should be implemented in the subclass so that it returns
063:             * the authorization level necessary to access the po.
064:             */
065:            abstract protected int getRequiredAuthLevel();
066:
067:            /**
068:             * This rerouteForContent overrides the parent method to avoid
069:             * a continous loop senario of rerouting.
070:             */
071:            protected void rerouteForContent(HttpPresentationComms comms) {
072:            }
073:
074:            ;
075:
076:            /*
077:             * Uses the xmlfactory and the request content
078:             * type to determine the proper page type
079:             * to generate.
080:             * For example if the request type is wml and
081:             * the PO is MessengerLogin, then
082:             * using the
083:             * 
084:             * XMLObject page =
085:             * myComms.xmlcFactory.create(Class.forName("MessengerLogin" + "WML"));
086:             * 
087:             * @param String poName
088:             * @return XMLObject
089:             * 
090:             * @throws AirSentPresentationException
091:             */
092:            public XMLObject create(String poName)
093:                    throws AirSentPresentationException {
094:                XMLObject page = null;
095:
096:                try {
097:                    page = getComms().xmlcFactory.create(DeviceUtils
098:                            .getPageName(getComms(), poName));
099:                } catch (Exception ex) {
100:                    throw new AirSentPresentationException(
101:                            "Trouble getting current authorization level", ex);
102:                }
103:                return page;
104:            }
105:
106:            /**
107:             * This logs out a user from the session.  it first grabs
108:             * an instance of the sessionData associated with the request
109:             * and then sets the user to null in the session data.
110:             * 
111:             * @param HttpServletRequest request - this is the request that
112:             * the session data is extracted from.
113:             * 
114:             * @exception AirSentPresentationException when an error occurs or if
115:             * the session data for the request is null.
116:             */
117:            public XMLObject handleLogout() throws AirSentPresentationException {
118:                try {
119:
120:                    mySessionData = null;
121:                    SessionManager sessionManager = myComms.session
122:                            .getSessionManager();
123:                    sessionManager.deleteSession(myComms.session);
124:
125:                    throw new ClientPageRedirectException(
126:                            AirSentConstants.XML_PAGE);
127:                } catch (Exception e) {
128:                    throw new AirSentPresentationException(
129:                            "Trouble logging out user", e);
130:                }
131:            }
132:        }
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