001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.servlet;
016    
017    import com.liferay.portal.kernel.util.HtmlUtil;
018    import com.liferay.portal.kernel.util.HttpUtil;
019    import com.liferay.portal.kernel.util.ListUtil;
020    import com.liferay.portal.kernel.util.PredicateFilter;
021    import com.liferay.portal.kernel.util.StringBundler;
022    import com.liferay.portal.kernel.util.StringPool;
023    import com.liferay.portal.model.Portlet;
024    import com.liferay.portal.util.comparator.PortletNameComparator;
025    import com.liferay.portlet.PortletResourceAccessor;
026    
027    import java.util.ArrayList;
028    import java.util.List;
029    import java.util.Set;
030    
031    /**
032     * @author Carlos Sierra Andr??s
033     */
034    public class ComboServletStaticURLGenerator {
035    
036            public List<String> generate(List<Portlet> portlets) {
037                    List<String> urls = new ArrayList<>();
038    
039                    StringBundler sb = new StringBundler();
040    
041                    long timestamp = _timestamp;
042    
043                    portlets = ListUtil.sort(portlets, _portletNameComparator);
044    
045                    for (Portlet portlet : portlets) {
046                            for (PortletResourceAccessor portletResourceAccessor :
047                                            _portletResourceAccessors) {
048    
049                                    List<String> portletResources = portletResourceAccessor.get(
050                                            portlet);
051    
052                                    for (String portletResource : portletResources) {
053                                            if (!_predicateFilter.filter(portletResource)) {
054                                                    continue;
055                                            }
056    
057                                            String url = portletResource;
058    
059                                            if (!HttpUtil.hasProtocol(portletResource)) {
060                                                    url = portlet.getContextPath() + portletResource;
061                                            }
062    
063                                            if (_visitedURLs.contains(url)) {
064                                                    continue;
065                                            }
066    
067                                            if (HttpUtil.hasProtocol(portletResource)) {
068                                                    urls.add(portletResource);
069                                            }
070                                            else {
071                                                    sb.append(StringPool.AMPERSAND);
072    
073                                                    if (!portletResourceAccessor.isPortalResource()) {
074                                                            sb.append(portlet.getPortletId());
075                                                            sb.append(StringPool.COLON);
076                                                    }
077    
078                                                    sb.append(HtmlUtil.escapeURL(portletResource));
079    
080                                                    timestamp = Math.max(timestamp, portlet.getTimestamp());
081                                            }
082    
083                                            _visitedURLs.add(url);
084                                    }
085                            }
086                    }
087    
088                    if (sb.length() > 0) {
089                            String url = _urlPrefix + sb.toString();
090    
091                            url = HttpUtil.addParameter(url, "t", timestamp);
092    
093                            urls.add(url);
094                    }
095    
096                    return urls;
097            }
098    
099            public void setPortletResourceAccessors(
100                    PortletResourceAccessor... portletResourceAccessors) {
101    
102                    _portletResourceAccessors = portletResourceAccessors;
103            }
104    
105            public void setPredicateFilter(PredicateFilter<String> predicateFilter) {
106                    _predicateFilter = predicateFilter;
107            }
108    
109            public void setTimestamp(long timestamp) {
110                    _timestamp = timestamp;
111            }
112    
113            public void setURLPrefix(String urlPrefix) {
114                    _urlPrefix = urlPrefix;
115            }
116    
117            public void setVisitedURLs(Set<String> visitedURLs) {
118                    _visitedURLs = visitedURLs;
119            }
120    
121            private static final PortletNameComparator _portletNameComparator =
122                    new PortletNameComparator();
123    
124            private PortletResourceAccessor[] _portletResourceAccessors;
125            private PredicateFilter<String> _predicateFilter = PredicateFilter.ALL;
126            private long _timestamp;
127            private String _urlPrefix;
128            private Set<String> _visitedURLs;
129    
130    }