Source Code Cross Referenced for EditRegistrationAction.java in  » Web-Framework » struts-1.3.8 » org » apache » struts » webapp » example2 » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » struts 1.3.8 » org.apache.struts.webapp.example2 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: EditRegistrationAction.java 471754 2006-11-06 14:55:09Z husted $
003:         *
004:         * Licensed to the Apache Software Foundation (ASF) under one
005:         * or more contributor license agreements.  See the NOTICE file
006:         * distributed with this work for additional information
007:         * regarding copyright ownership.  The ASF licenses this file
008:         * to you under the Apache License, Version 2.0 (the
009:         * "License"); you may not use this file except in compliance
010:         * with the License.  You may obtain a copy of the License at
011:         *
012:         *  http://www.apache.org/licenses/LICENSE-2.0
013:         *
014:         * Unless required by applicable law or agreed to in writing,
015:         * software distributed under the License is distributed on an
016:         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017:         * KIND, either express or implied.  See the License for the
018:         * specific language governing permissions and limitations
019:         * under the License.
020:         */
021:
022:        package org.apache.struts.webapp.example2;
023:
024:        import java.lang.reflect.InvocationTargetException;
025:        import javax.servlet.ServletException;
026:        import javax.servlet.http.HttpServletRequest;
027:        import javax.servlet.http.HttpServletResponse;
028:        import javax.servlet.http.HttpSession;
029:        import org.apache.commons.beanutils.PropertyUtils;
030:        import org.apache.commons.logging.Log;
031:        import org.apache.commons.logging.LogFactory;
032:        import org.apache.struts.action.Action;
033:        import org.apache.struts.action.ActionForm;
034:        import org.apache.struts.action.ActionForward;
035:        import org.apache.struts.action.ActionMapping;
036:
037:        /**
038:         * Implementation of <strong>Action</strong> that populates an instance of
039:         * <code>RegistrationForm</code> from the profile of the currently logged on
040:         * User (if any).
041:         *
042:         * @author Craig R. McClanahan
043:         * @version $Rev: 471754 $ $Date: 2006-11-06 08:55:09 -0600 (Mon, 06 Nov 2006) $
044:         */
045:
046:        public final class EditRegistrationAction extends Action {
047:
048:            // ----------------------------------------------------- Instance Variables
049:
050:            /**
051:             * The <code>Log</code> instance for this application.
052:             */
053:            private Log log = LogFactory
054:                    .getLog("org.apache.struts.webapp.Example");
055:
056:            // --------------------------------------------------------- Public Methods
057:
058:            /**
059:             * Process the specified HTTP request, and create the corresponding HTTP
060:             * response (or forward to another web component that will create it).
061:             * Return an <code>ActionForward</code> instance describing where and how
062:             * control should be forwarded, or <code>null</code> if the response has
063:             * already been completed.
064:             *
065:             * @param mapping The ActionMapping used to select this instance
066:             * @param form The optional ActionForm bean for this request (if any)
067:             * @param request The HTTP request we are processing
068:             * @param response The HTTP response we are creating
069:             *
070:             * @exception Exception if the application business logic throws
071:             *  an exception
072:             */
073:            public ActionForward execute(ActionMapping mapping,
074:                    ActionForm form, HttpServletRequest request,
075:                    HttpServletResponse response) throws Exception {
076:
077:                // Extract attributes we will need
078:                HttpSession session = request.getSession();
079:                String action = request.getParameter("action");
080:                if (action == null)
081:                    action = "Create";
082:                if (log.isDebugEnabled()) {
083:                    log.debug("EditRegistrationAction:  Processing " + action
084:                            + " action");
085:                }
086:
087:                // Is there a currently logged on user?
088:                User user = null;
089:                if (!"Create".equals(action)) {
090:                    user = (User) session.getAttribute(Constants.USER_KEY);
091:                    if (user == null) {
092:                        if (log.isDebugEnabled()) {
093:                            log.debug(" User is not logged on in session "
094:                                    + session.getId());
095:                        }
096:                        return (mapping.findForward("logon"));
097:                    }
098:                }
099:
100:                // Populate the user registration form
101:                if (form == null) {
102:                    if (log.isTraceEnabled()) {
103:                        log
104:                                .trace(" Creating new RegistrationForm bean under key "
105:                                        + mapping.getAttribute());
106:                    }
107:                    form = new RegistrationForm();
108:                    if ("request".equals(mapping.getScope()))
109:                        request.setAttribute(mapping.getAttribute(), form);
110:                    else
111:                        session.setAttribute(mapping.getAttribute(), form);
112:                }
113:                RegistrationForm regform = (RegistrationForm) form;
114:                if (user != null) {
115:                    if (log.isTraceEnabled()) {
116:                        log.trace(" Populating form from " + user);
117:                    }
118:                    try {
119:                        PropertyUtils.copyProperties(regform, user);
120:                        regform.setAction(action);
121:                        regform.setPassword(null);
122:                        regform.setPassword2(null);
123:                    } catch (InvocationTargetException e) {
124:                        Throwable t = e.getTargetException();
125:                        if (t == null)
126:                            t = e;
127:                        log.error("RegistrationForm.populate", t);
128:                        throw new ServletException("RegistrationForm.populate",
129:                                t);
130:                    } catch (Throwable t) {
131:                        log.error("RegistrationForm.populate", t);
132:                        throw new ServletException("RegistrationForm.populate",
133:                                t);
134:                    }
135:                }
136:
137:                // Set a transactional control token to prevent double posting
138:                if (log.isTraceEnabled()) {
139:                    log.trace(" Setting transactional control token");
140:                }
141:                saveToken(request);
142:
143:                // Forward control to the edit user registration page
144:                if (log.isTraceEnabled()) {
145:                    log.trace(" Forwarding to 'success' page");
146:                }
147:                if ("Create".equals(action)) {
148:                    return (mapping.findForward("register"));
149:                } else {
150:                    return (mapping.findForward("success"));
151:                }
152:
153:            }
154:
155:        }
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