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1
6 package org.roller.presentation.velocity.plugins.acronyms;
7
8 import org.apache.commons.lang.StringEscapeUtils;
9 import org.apache.commons.logging.Log;
10 import org.apache.commons.logging.LogFactory;
11 import org.apache.velocity.context.Context;
12 import org.roller.RollerException;
13 import org.roller.model.RollerFactory;
14 import org.roller.model.UserManager;
15 import org.roller.pojos.PageData;
16 import org.roller.pojos.WeblogEntryData;
17 import org.roller.pojos.WebsiteData;
18 import org.roller.presentation.RollerRequest;
19 import org.roller.presentation.velocity.PagePlugin;
20
21 import java.util.Iterator  ;
22 import java.util.Properties ;
23 import java.util.regex.Matcher ;
24 import java.util.regex.Pattern ;
25
26
34 public class AcronymsPlugin implements PagePlugin
35 {
36
39 private static final Log mLogger = LogFactory.getLog(AcronymsPlugin.class);
40
41
44 protected String name = "Acronyms";
45 protected String description = "Expands acronyms defined in _acronym page. " +
46 "Example: definition 'HTML=Hyper Text Markup Language' " +
47 "becomes <acronym title='Hyper Text Markup Language'>HTML</acronym>. " +
48 "You must create an " +
49 "<a HREF='page.do?method=editPages&rmik=tabbedmenu.website.pages'>" +
50 "_acronym page</a> to use Acronyms.";
51
52
55 public AcronymsPlugin()
56 {
57 super();
58 mLogger.debug("AcronymsPlugin instantiated.");
59 }
60
61
64 public void init(RollerRequest rreq, Context ctx) throws RollerException
65 {
66 if (mLogger.isDebugEnabled()) {
67 mLogger.debug("init( rreq = "+rreq+", ctx = "+ctx+" )");
68 }
69 }
70
71
77 private Properties loadAcronyms(WebsiteData website)
78 {
79 Properties acronyms = new Properties ();
80 try
81 {
82 UserManager userMgr = RollerFactory.getRoller().getUserManager();
83 PageData acronymsPage = userMgr.getPageByName(
84 website, "_acronyms");
85 if (acronymsPage != null)
86 {
87 acronyms = parseAcronymPage(acronymsPage, acronyms);
88 }
89 }
90 catch (RollerException e)
91 {
92 mLogger.warn(e);
94 }
95 return acronyms;
96 }
97
98
101 public String render(WeblogEntryData entry, boolean skipFlag)
102 {
103 String text = entry.getText();
104
105 if (mLogger.isDebugEnabled()) {
106 mLogger.debug("render( entry = "+entry.getId()+", skipFlag = "+skipFlag+" )");
107 }
108
109
112 Properties acronyms = loadAcronyms(entry.getWebsite());
113 mLogger.debug("acronyms.size()=" + acronyms.size());
114 if (acronyms.size() == 0)
115 {
116 return text;
117 }
118
119
122 Pattern [] acronymPatterns = new Pattern [acronyms.size()];
123 String [] acronymTags = new String [acronyms.size()];
124 int count = 0;
125 for (Iterator iter = acronyms.keySet().iterator(); iter.hasNext();)
126 {
127 String acronym = (String ) iter.next();
128 acronymPatterns[count] = Pattern.compile("\\b" + acronym + "\\b");
129 mLogger.debug("match '" + acronym + "'");
130 acronymTags[count] =
131 "<acronym title=\""
132 + acronyms.getProperty(acronym)
133 + "\">"
134 + acronym
135 + "</acronym>";
136 count++;
137 }
138
139
146
147 if (acronymPatterns == null || acronymPatterns.length == 0) {
149 return text;
150 }
151
152 return matchAcronyms(text, acronymPatterns, acronymTags);
153 }
154
155
159 public String render(String text)
160 {
161 return text;
162 }
163
164
167 public String toString()
168 {
169 return name;
170 }
171
172
180 private String matchAcronyms(String text, Pattern [] acronymPatterns, String [] acronymTags)
181 {
182 if (mLogger.isDebugEnabled()) {
183 mLogger.debug("matchAcronyms("+text+")");
184 }
185
186 Matcher matcher = null;
187 for (int i=0; i<acronymPatterns.length; i++)
188 {
189 matcher = acronymPatterns[i].matcher(text);
190 text = matcher.replaceAll(acronymTags[i]);
191 }
192 return text;
193 }
194
195
202 private Properties parseAcronymPage(PageData acronymPage, Properties acronyms)
203 {
204 String rawAcronyms = acronymPage.getTemplate();
205
206 if (mLogger.isDebugEnabled())
207 {
208 mLogger.debug("parsing _acronyms template: \n'"+rawAcronyms+"'");
209 }
210
211 String regex = "\n"; String [] lines = rawAcronyms.split(regex);
213
214 if (lines != null)
215 {
216 for (int i = 0; i < lines.length; i++)
217 {
218 int index = lines[i].indexOf('=');
219 if (index > 0)
220 {
221 String key = lines[i].substring(0, index).trim();
222 String value =
223 lines[i].substring(index + 1, lines[i].length()).trim();
224 acronyms.setProperty(key, value);
225 }
226 }
227 }
228
229 return acronyms;
230 }
231
232 public String getName() { return name; }
233 public String getDescription() { return StringEscapeUtils.escapeJavaScript(description); }
234 }
235 |
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