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1
21 package net.sf.packtag.util;
22
23 import javax.servlet.ServletContext  ;
24
25
26
27
33 public class ContextConfiguration {
34
35 private final static String EMPTY_STRING = "";
36 private static final String SLASH = "/";
37
38 public final static String CACHE_TYPE_FILE = "file";
39 public final static String CACHE_TYPE_SERVLET = "servlet";
40 public final static String CACHE_TYPE_DISABLED = "disabled";
41
42 private static String cacheType;
43
44
45 private static String cacheServletPath;
46
47
48 private static String cacheFilePath;
49
50
51 private static Boolean fileCheckTimestamps;
52
53
54 private static Boolean hideErrors;
55
56
57 public static String getCacheType(ServletContext context) {
58 if (cacheType == null) {
59 synchronized (ContextConfiguration.class) {
60 if (cacheType == null) {
61 String type = context.getInitParameter("packtag.cache.type");
62 if (type == null) {
63 type = CACHE_TYPE_FILE;
64 }
65 cacheType = type;
66 }
67 }
68 }
69 return cacheType;
70 }
71
72
73 public static boolean isCachetypeDisabled(ServletContext context) {
74 return CACHE_TYPE_DISABLED.equalsIgnoreCase(getCacheType(context));
75 }
76
77
78 public static boolean isCachetypeServlet(ServletContext context) {
79 return CACHE_TYPE_SERVLET.equalsIgnoreCase(getCacheType(context));
80 }
81
82
83 public static boolean isCachetypeFile(ServletContext context) {
84 return CACHE_TYPE_FILE.equalsIgnoreCase(getCacheType(context));
85 }
86
87
88 public static boolean isFileCheckTimestamps(ServletContext context) {
89 if (fileCheckTimestamps == null) {
90 synchronized (ContextConfiguration.class) {
91 if (fileCheckTimestamps == null) {
92 String parameter = context.getInitParameter("packtag.resources.checktimestamps");
93 if (parameter == null || parameter.equals(EMPTY_STRING)) {
94 fileCheckTimestamps = Boolean.TRUE; }
96 else {
97 fileCheckTimestamps = new Boolean (parameter);
98 }
99 }
100 }
101 }
102 return fileCheckTimestamps.booleanValue();
103 }
104
105
106
107 public static boolean isHideErros(ServletContext context) {
108 if (hideErrors == null) {
109 synchronized (ContextConfiguration.class) {
110 if (hideErrors == null) {
111 hideErrors = new Boolean (context.getInitParameter("packtag.hide.errors"));
112 }
113 }
114 }
115 return hideErrors.booleanValue();
116 }
117
118
119 public static String getPackStrategyClassName(ServletContext context, String resourceType) {
120 return context.getInitParameter("packtag." + resourceType + ".strategy");
121 }
122
123
124 public static String getCacheServletPath(ServletContext context) {
125 if (cacheServletPath == null) {
126 synchronized (ContextConfiguration.class) {
127 if (cacheServletPath == null) {
128 String path = context.getInitParameter("packtag.cache.servlet.path");
129 if ((path == null) || (path.length() == 0)) {
130 path = "/pack";
131 }
132 if (!path.startsWith(SLASH)) {
133 path = SLASH + path;
134 }
135 if (path.endsWith(SLASH)) {
136 path = path.substring(0, path.length() - 1);
137 }
138 cacheServletPath = path;
139 }
140 }
141 }
142 return cacheServletPath;
143 }
144
145
146 public static String getCacheFilePath(ServletContext context) {
147 if (cacheFilePath == null) {
148 synchronized (ContextConfiguration.class) {
149 if (cacheFilePath == null) {
150 String path = context.getInitParameter("packtag.cache.file.path");
151 if ((path == null) || (path.length() == 0)) {
152 path = "pack";
153 }
154 if (path.startsWith(SLASH)) {
155 path = path.substring(1, path.length());
156 }
157 if (path.endsWith(SLASH)) {
158 path = path.substring(0, path.length() - 1);
159 }
160 cacheFilePath = path;
161 }
162 }
163 }
164 return cacheFilePath;
165 }
166
167 }
168 |
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