Source Code Cross Referenced for GenericPortletWindow.java in  » EJB-Server-resin-3.1.5 » resin » com » caucho » portal » generic » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.portal.generic 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * The Apache Software License, Version 1.1
003:         *
004:         * Copyright (c) 2001-2004 Caucho Technology, Inc.  All rights reserved.
005:         *
006:         * Redistribution and use in source and binary forms, with or without
007:         * modification, are permitted provided that the following conditions
008:         * are met:
009:         *
010:         * 1. Redistributions of source code must retain the above copyright
011:         *    notice, this list of conditions and the following disclaimer.
012:         *
013:         * 2. Redistributions in binary form must reproduce the above copyright
014:         *    notice, this list of conditions and the following disclaimer in
015:         *    the documentation and/or other materials provided with the
016:         *    distribution.
017:         *
018:         * 3. The end-user documentation included with the redistribution, if
019:         *    any, must include the following acknowlegement:
020:         *       "This product includes software developed by the
021:         *        Caucho Technology (http://www.caucho.com/)."
022:         *    Alternately, this acknowlegement may appear in the software itself,
023:         *    if and wherever such third-party acknowlegements normally appear.
024:         *
025:         * 4. The names "Hessian", "Resin", and "Caucho" must not be used to
026:         *    endorse or promote products derived from this software without prior
027:         *    written permission. For written permission, please contact
028:         *    info@caucho.com.
029:         *
030:         * 5. Products derived from this software may not be called "Resin"
031:         *    nor may "Resin" appear in their names without prior written
032:         *    permission of Caucho Technology.
033:         *
034:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
035:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
036:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
037:         * DISCLAIMED.  IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS
038:         * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
039:         * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
040:         * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
041:         * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
042:         * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
043:         * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
044:         * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
045:         *
046:         * @author Sam
047:         */
048:
049:        package com.caucho.portal.generic;
050:
051:        import javax.portlet.Portlet;
052:        import javax.portlet.PortletContext;
053:        import javax.portlet.PortletException;
054:        import java.io.IOException;
055:        import java.util.logging.Level;
056:        import java.util.logging.Logger;
057:
058:        /**
059:         * A Window that contains one {@link javax.portlet.Portlet}.
060:         */
061:        public class GenericPortletWindow extends GenericWindow {
062:            static protected final Logger log = Logger
063:                    .getLogger(GenericPortletWindow.class.getName());
064:
065:            private Portlet _portlet;
066:            private boolean _isPortletNameSet;
067:
068:            public GenericPortletWindow() {
069:            }
070:
071:            /**
072:             * The portlet.  This method can be called in derived classes,
073:             * or through the use of dependency injection on containers that support it.
074:             */
075:            public void setPortlet(Portlet portlet) {
076:                if (_portlet != null)
077:                    throw new IllegalArgumentException(
078:                            "`portlet' is already set");
079:
080:                _portlet = portlet;
081:            }
082:
083:            /**
084:             * An alternative to {@link #setPortlet(Portlet)}, specify the class
085:             * name of an object to instantiate
086:             */
087:            public void setPortletClass(String className) {
088:                setPortlet((Portlet) newInstance(Portlet.class, className));
089:            }
090:
091:            /** 
092:             * The default is the value of portlet-class.
093:             */
094:            public void setPortletName(String portletName) {
095:                super .setPortletName(portletName);
096:                _isPortletNameSet = true;
097:            }
098:
099:            public void init(PortletContext portletContext)
100:                    throws PortletException {
101:                super .init(portletContext);
102:
103:                if (_portlet == null)
104:                    throw new PortletException("`portlet' is required");
105:
106:                if (!_isPortletNameSet)
107:                    setPortletName(_portlet.getClass().getName());
108:
109:                _portlet.init(this );
110:            }
111:
112:            protected Portlet getPortlet() {
113:                if (_portlet == null)
114:                    throw new IllegalStateException("missing init()?");
115:
116:                return _portlet;
117:            }
118:
119:            /**
120:             * Use the PortletConnection to get an Action appropriate for this window,
121:             * and then call processAction on the portlet that is contained within this
122:             * Window if the Portlet is the target of the action.  
123:             */
124:            public void processAction(PortletConnection connection)
125:                    throws PortletException, IOException {
126:                Action action = connection.getAction(this , getNamespace());
127:
128:                if (action != null) {
129:                    try {
130:                        if (action.isTarget())
131:                            action.processAction(getPortlet());
132:                    } finally {
133:                        action.finish();
134:                    }
135:                }
136:            }
137:
138:            /**
139:             * Use the PortletConnection to get a Render appropriate for this window,
140:             * and then call render on the portlet that is contained within this
141:             * Window.
142:             */
143:            public void render(PortletConnection connection)
144:                    throws PortletException, IOException {
145:                Render render = connection.getRender(this , getNamespace());
146:
147:                if (render != null) {
148:                    try {
149:                        render.render(getPortlet());
150:                    } finally {
151:                        render.finish();
152:                    }
153:                }
154:            }
155:
156:            public void destroy() {
157:                Portlet portlet = _portlet;
158:
159:                _portlet = null;
160:
161:                try {
162:                    if (portlet != null)
163:                        portlet.destroy();
164:                } catch (Exception ex) {
165:                    log.log(Level.WARNING, ex.toString(), ex);
166:                }
167:            }
168:        }
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