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1
28
29 package com.caucho.naming;
30
31 import com.caucho.log.Log;
32 import com.caucho.util.L10N;
33
34 import javax.naming.Context  ;
35 import javax.naming.InitialContext ;
36 import javax.naming.Name ;
37 import javax.naming.NameNotFoundException ;
38 import javax.naming.NameParser ;
39 import javax.naming.NamingException ;
40 import java.util.logging.Level ;
41 import java.util.logging.Logger ;
42
43
46 public class Jndi {
47 private static Logger log = Log.open(Jndi.class);
48 private static L10N L = new L10N(Jndi.class);
49
50
53 public static String getFullName(String shortName)
54 {
55 if (shortName.startsWith("java:comp"))
56 return shortName;
57 else
58 return "java:comp/env/" + shortName;
59 }
60
61 public static void bindDeepShort(String name, Object obj)
62 throws NamingException
63 {
64 bindImpl(new InitialContext (), getFullName(name), obj, name);
65 }
66
67 public static void bindDeepShort(Context context, String name, Object obj)
68 throws NamingException
69 {
70 bindImpl(context, getFullName(name), obj, name);
71 }
72
73 public static void bindDeep(String name, Object obj)
74 throws NamingException
75 {
76 bindImpl(new InitialContext (), name, obj, name);
77 }
78
79 public static void bindDeep(Context context, String name, Object obj)
80 throws NamingException
81 {
82 bindImpl(context, name, obj, name);
83 }
84
85 private static void bindImpl(Context context, String name,
86 Object obj, String fullName)
87 throws NamingException
88 {
89 NameParser parser = context.getNameParser("");
90 Name parsedName = parser.parse(name);
91
92 if (parsedName.size() == 1) {
93 Object value = null;
94
95 try {
96 value = context.lookup(name);
97 } catch (NameNotFoundException e) {
98 }
99
100 context.rebind(name, obj);
101
102 if (value != null && value != obj)
104 log.warning(L.l("'{0}' overrides a previous JNDI resource. The old resource is '{1}' and the new one is '{2}'",
105 fullName, value, obj));
106
107 return;
108 }
109
110 Object sub = null;
111
112 try {
113 sub = context.lookup(parsedName.get(0));
114 } catch (NameNotFoundException e) {
115 }
116
117 if (sub == null)
118 sub = context.createSubcontext(parsedName.get(0));
119
120 if (sub instanceof Context )
121 bindImpl((Context ) sub, parsedName.getSuffix(1).toString(), obj, fullName);
122
123 else
124 throw new NamingException (L.l("`{0}' is an invalid JNDI name because `{1} is not a Context. One of the subcontexts is not a Context as expected.",
125 fullName, sub));
126 }
127
128
133 public static void rebindDeepShort(String name, Object obj)
134 throws NamingException
135 {
136 rebindImpl(new InitialContext (), getFullName(name), obj, name);
137 }
138
139
144 public static void rebindDeepShort(Context context, String name, Object obj)
145 throws NamingException
146 {
147 rebindImpl(context, getFullName(name), obj, name);
148 }
149
150
154 public static void rebindDeep(String name, Object obj)
155 throws NamingException
156 {
157 rebindImpl(new InitialContext (), name, obj, name);
158 }
159
160
164 public static void rebindDeep(Context context, String name, Object obj)
165 throws NamingException
166 {
167 rebindImpl(context, name, obj, name);
168 }
169
170
174 private static void rebindImpl(Context context, String name,
175 Object obj, String fullName)
176 throws NamingException
177 {
178 NameParser parser = context.getNameParser("");
179 Name parsedName = parser.parse(name);
180
181 if (parsedName.size() == 1) {
182 context.rebind(name, obj);
183 return;
184 }
185
186 Object sub = null;
187
188 try {
189 sub = context.lookup(parsedName.get(0));
190 } catch (NameNotFoundException e) {
191 log.log(Level.FINEST, e.toString(), e);
192 }
193
194 if (sub == null)
195 sub = context.createSubcontext(parsedName.get(0));
196
197 if (sub instanceof Context )
198 rebindImpl((Context ) sub, parsedName.getSuffix(1).toString(), obj,
199 fullName);
200
201 else
202 throw new NamingException (L.l("`{0}' is an invalid JNDI name because `{1} is not a Context. One of the subcontexts is not a Context as expected.",
203 fullName, sub));
204 }
205
206 public static Object lookup(String name)
208 {
209 try {
210 Object value = new InitialContext ().lookup(name);
211
212 if (value != null)
213 return value;
214 } catch (NamingException e) {
215 if (log.isLoggable(Level.FINEST))
216 log.log(Level.FINEST, e.toString(), e);
217 }
218
219 if (! name.startsWith("java:comp/env")) {
220 try {
221 Object value = new InitialContext ().lookup("java:comp/env/" + name);
222
223 if (value != null)
224 return value;
225 } catch (NamingException e) {
226 if (log.isLoggable(Level.FINEST))
227 log.log(Level.FINEST, e.toString(), e);
228 }
229 }
230
231 return null;
232 }
233
234 private Jndi() {}
235 }
236
237 |
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