1
14
15 package com.liferay.portal.theme;
16
17 import com.liferay.portal.kernel.log.Log;
18 import com.liferay.portal.kernel.log.LogFactoryUtil;
19 import com.liferay.portal.kernel.util.FileUtil;
20 import com.liferay.portal.kernel.util.GetterUtil;
21 import com.liferay.portal.kernel.util.Validator;
22 import com.liferay.portal.kernel.xml.Document;
23 import com.liferay.portal.kernel.xml.Element;
24 import com.liferay.portal.kernel.xml.SAXReaderUtil;
25 import com.liferay.portal.service.ThemeLocalServiceUtil;
26 import com.liferay.portal.util.PropsValues;
27
28 import java.io.File;
29
30 import java.util.HashMap;
31 import java.util.Map;
32
33 import javax.servlet.ServletContext;
34
35
40 public class ThemeLoader {
41
42 public String getServletContextName() {
43 return _servletContextName;
44 }
45
46 public String getThemesPath() {
47 return _themesPath;
48 }
49
50 public File getFileStorage() {
51 return _fileStorage;
52 }
53
54 public synchronized void loadThemes() {
55 if (_log.isInfoEnabled()) {
56 _log.info("Loading themes in " + _fileStorage);
57 }
58
59 File[] files = _fileStorage.listFiles();
60
61 if (files == null) {
62 if (_log.isWarnEnabled()) {
63 _log.warn(
64 "There are no directories to process for " + _fileStorage);
65 }
66
67 return;
68 }
69
70 for (int i = 0; i < files.length; i++) {
71 if (_log.isDebugEnabled()) {
72 _log.debug("Process directory " + files[i]);
73 }
74
75 File liferayLookAndFeelXML = new File(
76 files[i] + "/liferay-look-and-feel.xml");
77
78 if (liferayLookAndFeelXML.exists()) {
79 String lastModifiedKey = liferayLookAndFeelXML.toString();
80
81 Long prevLastModified = _lastModifiedMap.get(lastModifiedKey);
82
83 long lastModified = liferayLookAndFeelXML.lastModified();
84
85 if ((prevLastModified == null) ||
86 (prevLastModified.longValue() < lastModified)) {
87
88 registerTheme(liferayLookAndFeelXML);
89
90 _lastModifiedMap.put(lastModifiedKey, lastModified);
91 }
92 else {
93 if (_log.isDebugEnabled()) {
94 _log.debug(
95 "Do not refresh " + liferayLookAndFeelXML +
96 " because it is has not been modified");
97 }
98 }
99 }
100 else {
101 if (_log.isWarnEnabled()) {
102 _log.warn(liferayLookAndFeelXML + " does not exist");
103 }
104 }
105 }
106 }
107
108 protected ThemeLoader(
109 String servletContextName, ServletContext servletContext,
110 String[] xmls) {
111
112 _servletContextName = servletContextName;
113 _servletContext = servletContext;
114
115 try {
116 Document doc = SAXReaderUtil.read(xmls[0], true);
117
118 Element root = doc.getRootElement();
119
120 _themesPath = GetterUtil.getString(
121 root.elementText("themes-path"), "/themes");
122
123 String fileStorageValue = PropsValues.THEME_LOADER_STORAGE_PATH;
124
125 fileStorageValue = GetterUtil.getString(
126 root.elementText("file-storage"), fileStorageValue);
127
128 if (Validator.isNotNull(fileStorageValue)) {
129 _fileStorage = new File(fileStorageValue);
130 _loadFromServletContext = false;
131 }
132 else {
133 _fileStorage = new File(
134 servletContext.getRealPath(_themesPath));
135 _loadFromServletContext = true;
136 }
137
138 if (!_fileStorage.exists()) {
139 if (_log.isWarnEnabled()) {
140 _log.warn(
141 "File storage " + _fileStorage + " does not exist");
142 }
143
144 if (!_fileStorage.mkdirs()) {
145 _log.error(
146 "Unable to create theme loader file storage at " +
147 _fileStorage);
148 }
149 }
150 }
151 catch (Exception e) {
152 _log.error(e, e);
153 }
154
155 loadThemes();
156 }
157
158 protected void destroy() {
159 }
160
161 protected void registerTheme(File liferayLookAndFeelXML) {
162 if (_log.isDebugEnabled()) {
163 _log.debug("Registering " + liferayLookAndFeelXML);
164 }
165
166 try {
167 String content = FileUtil.read(liferayLookAndFeelXML);
168
169 ThemeLocalServiceUtil.init(
170 _servletContextName, _servletContext, _themesPath,
171 _loadFromServletContext, new String[] {content}, null);
172 }
173 catch (Exception e) {
174 _log.error(
175 "Error registering theme " + liferayLookAndFeelXML.toString(),
176 e);
177 }
178 }
179
180 private static Log _log = LogFactoryUtil.getLog(ThemeLoader.class);
181
182 private String _servletContextName;
183 private ServletContext _servletContext;
184 private String _themesPath;
185 private File _fileStorage;
186 private boolean _loadFromServletContext = true;
187 private Map<String, Long> _lastModifiedMap = new HashMap<String, Long>();
188
189 }