Source Code Cross Referenced for MessagesPostProcessor.java in  » Workflow-Engines » wfmopen-2.1.1 » de » danet » an » util » jsf » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Workflow Engines » wfmopen 2.1.1 » de.danet.an.util.jsf 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * This file is part of the WfMOpen project.
003:         * Copyright (C) 2001-2005 Danet GmbH (www.danet.de), BU BTS.
004:         * All rights reserved.
005:         *
006:         * This program is free software; you can redistribute it and/or modify
007:         * it under the terms of the GNU General Public License as published by
008:         * the Free Software Foundation; either version 2 of the License, or
009:         * (at your option) any later version.
010:         *
011:         * This program is distributed in the hope that it will be useful,
012:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014:         * GNU General Public License for more details.
015:         *
016:         * You should have received a copy of the GNU General Public License
017:         * along with this program; if not, write to the Free Software
018:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
019:         *
020:         * $Id: MessagesPostProcessor.java,v 1.6 2006/09/29 12:32:11 drmlipp Exp $
021:         *
022:         * $Log: MessagesPostProcessor.java,v $
023:         * Revision 1.6  2006/09/29 12:32:11  drmlipp
024:         * Consistently using WfMOpen as projct name now.
025:         *
026:         * Revision 1.5  2006/09/01 11:14:54  drmlipp
027:         * Further improved error handling.
028:         *
029:         * Revision 1.4  2006/08/31 14:15:17  drmlipp
030:         * Improved error handling.
031:         *
032:         * Revision 1.3  2006/08/30 13:47:15  drmlipp
033:         * Avoid null pointer exception.
034:         *
035:         * Revision 1.2  2006/07/26 13:49:02  drmlipp
036:         * Continued field related messages.
037:         *
038:         * Revision 1.1  2006/07/19 20:11:35  mlipp
039:         * Prepared message post processing.
040:         *
041:         */
042:        package de.danet.an.util.jsf;
043:
044:        import java.util.Iterator;
045:        import java.util.Map;
046:
047:        import javax.faces.application.FacesMessage;
048:        import javax.faces.component.UIComponent;
049:        import javax.faces.component.UIViewRoot;
050:        import javax.faces.context.FacesContext;
051:        import javax.faces.event.PhaseEvent;
052:        import javax.faces.event.PhaseId;
053:        import javax.faces.event.PhaseListener;
054:
055:        import de.danet.an.util.Misc;
056:
057:        /**
058:         * This class provides a "before render response" phase listener that
059:         * manipulates the accumulated messages.
060:         * 
061:         * @author Michael Lipp
062:         */
063:        public class MessagesPostProcessor implements  PhaseListener {
064:
065:            /* (non-Javadoc)
066:             * @see javax.faces.event.PhaseListener#getPhaseId()
067:             */
068:            public PhaseId getPhaseId() {
069:                return PhaseId.RENDER_RESPONSE;
070:            }
071:
072:            /* (non-Javadoc)
073:             * @see javax.faces.event.PhaseListener#beforePhase(javax.faces.event.PhaseEvent)
074:             */
075:            public void beforePhase(PhaseEvent e) {
076:                FacesContext fc = e.getFacesContext();
077:                UIViewRoot root = fc.getViewRoot();
078:                for (Iterator i = fc.getClientIdsWithMessages(); i.hasNext();) {
079:                    String clientId = (String) i.next();
080:                    if (clientId == null) {
081:                        continue;
082:                    }
083:                    UIComponent c = root.findComponent(clientId);
084:                    if (c == null) {
085:                        continue;
086:                    }
087:                    Map attrs = c.getAttributes();
088:                    // if a local message has been registered, replace detail
089:                    String localSwapMessages = (String) attrs
090:                            .get("localSwapMessages");
091:                    String localErrorDetail = (String) attrs
092:                            .get("localErrorDetail");
093:                    String localErrorSummary = (String) attrs
094:                            .get("localErrorSummary");
095:                    if (localSwapMessages != null || localErrorDetail != null
096:                            || localErrorSummary != null) {
097:                        for (Iterator j = fc.getMessages(clientId); j.hasNext();) {
098:                            FacesMessage msg = (FacesMessage) j.next();
099:                            if (Boolean.valueOf(localSwapMessages)
100:                                    .booleanValue()) {
101:                                String h = msg.getDetail();
102:                                msg.setDetail(msg.getSummary());
103:                                msg.setSummary(h);
104:                            }
105:                            if (localErrorDetail != null) {
106:                                msg.setDetail(localErrorDetail);
107:                            }
108:                            if (localErrorSummary != null) {
109:                                msg.setSummary(localErrorSummary);
110:                            }
111:                        }
112:                    }
113:
114:                    // if a global message (forward hint) has been registered, make
115:                    // sure that it exists (but only once)
116:                    String globalErrorDetail = (String) attrs
117:                            .get("globalErrorDetail");
118:                    String globalErrorSummary = (String) attrs
119:                            .get("globalErrorSummary");
120:                    boolean found = false;
121:                    if (globalErrorDetail != null || globalErrorSummary != null) {
122:                        for (Iterator j = fc.getMessages(null); j.hasNext();) {
123:                            FacesMessage msg = (FacesMessage) j.next();
124:                            if (msg != null
125:                                    && Misc.equals(msg.getDetail(),
126:                                            globalErrorDetail)
127:                                    && Misc.equals(msg.getSummary(),
128:                                            globalErrorSummary)) {
129:                                found = true;
130:                                break;
131:                            }
132:                        }
133:                        if (!found) {
134:                            fc.addMessage(null, new FacesMessage(
135:                                    FacesMessage.SEVERITY_ERROR,
136:                                    globalErrorSummary, globalErrorDetail));
137:                        }
138:                    }
139:                }
140:            }
141:
142:            /* (non-Javadoc)
143:             * @see javax.faces.event.PhaseListener#afterPhase(javax.faces.event.PhaseEvent)
144:             */
145:            public void afterPhase(PhaseEvent arg0) {
146:            }
147:
148:        }
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