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1
5 package com.opensymphony.webwork.views.jsp.vui;
6
7 import com.opensymphony.webwork.util.ClassLoaderUtils;
8 import org.apache.commons.logging.Log;
9 import org.apache.commons.logging.LogFactory;
10
11 import java.io.InputStream  ;
12 import java.util.*;
13
14
15
21 public final class BrowserSupport {
22
24 static Log log = LogFactory.getLog(BrowserSupport.class);
25 static Properties properties;
26 static Map browserMap = Collections.synchronizedMap(new HashMap(2));
27 static List browserMatch = Collections.synchronizedList(new ArrayList(2));
28
29 static {
30 InputStream in = null;
31 Properties p = new Properties();
32
33 try {
34 in = ClassLoaderUtils.getResourceAsStream("/vxml.properties", BrowserSupport.class);
35
36 if (in != null) {
37 p.load(in);
38 loadBrowserInfo(p);
39 }
40 } catch (Exception ex) {
41 ex.printStackTrace();
42 } finally {
43 if (in != null) {
44 try {
45 in.close();
46 } catch (Exception ignore) {
47 }
48
49 in = null;
50 }
51 }
52 }
53
54
56
59 public static String getBrowserTemplateDirectory(String userAgent) {
60 String tempDir = (String ) browserMap.get(userAgent);
61
62 if (tempDir == null) {
63 tempDir = getTemplateDirectoryFromMatch(userAgent);
64
65 if (tempDir == null) {
66 }
67 }
68
69 return ((tempDir == null) ? "/template/vxml/" : tempDir);
70 }
71
72
75 public static String getTemplateDirectoryFromMatch(String userAgent) {
76 Iterator i = browserMatch.iterator();
77 Match dm = null;
78
79 while (i.hasNext()) {
80 Match m = (Match) i.next();
81
82 if (m.match == null) {
83 dm = m;
85 continue;
86 }
87
88 if (userAgent.startsWith(m.match)) {
89 return m.templateDirectory;
90 }
91 }
92
93 return ((dm == null) ? null : dm.templateDirectory);
94 }
95
96
100 public static void addBrowserMatch(String uaString, String templateDir) {
101 int w = uaString.indexOf("*");
102 Match m = new Match();
103 m.userAgent = uaString;
104
105 if (w > 0) {
106 m.match = uaString.substring(0, w);
107 } else {
108 m.match = null; }
110
111 m.templateDirectory = templateDir;
112
113 if (log.isDebugEnabled()) {
114 log.debug("Loading useragent match: " + m.match + " [" + uaString + "] directory: " + templateDir);
115 }
116
117 browserMatch.add(m);
118 }
119
120
123 public static void loadBrowserInfo(Properties p) {
124 properties = p;
125
126 String browsers = p.getProperty("browsers");
127
128 if (browsers != null) {
129 StringTokenizer tok = new StringTokenizer(browsers, ",");
130
131 while (tok.hasMoreTokens()) {
132 String token = tok.nextToken();
133 String ua = p.getProperty(token + ".useragent");
134
135 if (ua != null) {
136 String template = p.getProperty(token + ".templatedirectory");
137
138 if (template != null) {
139 if (log.isDebugEnabled()) {
140 log.debug("Loading useragent: " + token + " [" + ua + "] directory: " + template);
141 }
142
143 browserMap.put(ua, template);
144
145 if (ua.indexOf("*") > -1) {
146 addBrowserMatch(ua, template);
147 }
148 }
149 }
150 }
151 }
152 }
153
154
156 static final class Match {
157 String match;
158 String templateDirectory;
159 String userAgent;
160 }
161 }
162 |
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