001    // Copyright 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.portlet;
016    
017    import javax.portlet.PortletRequest;
018    
019    import org.apache.hivemind.impl.BaseLocatable;
020    import org.apache.hivemind.util.Defense;
021    import org.apache.hivemind.util.ToStringBuilder;
022    
023    /**
024     * Contribution used for resolving requests to named pages.
025     * 
026     * @author Howard M. Lewis Ship
027     * @since 4.0
028     */
029    public class PageResolverContribution extends BaseLocatable implements Comparable
030    {
031        private String _portletMode;
032    
033        private String _windowState;
034    
035        private String _mimeType;
036    
037        private String _pageName;
038    
039        public void setMimeType(String mimeType)
040        {
041            _mimeType = mimeType;
042        }
043    
044        public void setPageName(String pageName)
045        {
046            _pageName = pageName;
047        }
048    
049        public String getPageName()
050        {
051            return _pageName;
052        }
053    
054        public void setPortletMode(String portletMode)
055        {
056            _portletMode = portletMode;
057        }
058    
059        public void setWindowState(String windowState)
060        {
061            _windowState = windowState;
062        }
063    
064        int sortScore()
065        {
066            int result = 0;
067    
068            if (_mimeType != null)
069                result += 4;
070    
071            if (_portletMode != null)
072                result += 2;
073    
074            if (_windowState != null)
075                result += 1;
076    
077            return result;
078        }
079    
080        public String toString()
081        {
082            ToStringBuilder builder = new ToStringBuilder(this);
083    
084            builder.append("mimeType", _mimeType);
085            builder.append("portletMode", _portletMode);
086            builder.append("windowState", _windowState);
087            builder.append("pageName", _pageName);
088    
089            return builder.toString();
090        }
091    
092        public int compareTo(Object o)
093        {
094            int thisScore = sortScore();
095            int otherScore = ((PageResolverContribution) o).sortScore();
096    
097            // End result: sorted descending by specificity
098    
099            return otherScore - thisScore;
100        }
101    
102        public boolean match(PortletRequest request)
103        {
104            Defense.notNull(request, "request");
105    
106            if (_mimeType != null && !_mimeType.equals(request.getResponseContentType()))
107                return false;
108    
109            if (_portletMode != null && !_portletMode.equals(request.getPortletMode().toString()))
110                return false;
111    
112            if (_windowState != null && !_windowState.equals(request.getWindowState().toString()))
113                return false;
114    
115            return true;
116        }
117    }