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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