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1
43 package org.exolab.jms.messagemgr;
44
45 import javax.naming.CompositeName  ;
46 import javax.naming.Context ;
47 import javax.naming.InvalidNameException ;
48 import javax.naming.NameAlreadyBoundException ;
49 import javax.naming.NameNotFoundException ;
50 import javax.naming.NamingException ;
51
52 import org.exolab.jms.client.JmsDestination;
53
54
55
61 class ContextHelper {
62
63
75 public static void rebind(Context context, String name,
76 JmsDestination destination)
77 throws NamingException {
78 CompositeName composite = getCompositeName(name);
79 Context subcontext = context;
80 String component = null;
81
82 for (int i = 0; i < composite.size() - 1; i++) {
83 component = composite.get(i);
84 if (component.length() == 0) {
85 throw new InvalidNameException ("'" + name
86 + "' is not a valid name");
87 }
88 Object object = null;
89 try {
90 object = subcontext.lookup(component);
91 if (!(object instanceof Context )) {
92 String subname = "";
93 for (int j = 0; j <= i; j++) {
94 if (j > 0) {
95 subname += ".";
96 }
97 subname += composite.get(j);
98 }
99 throw new NameAlreadyBoundException (
100 "'" + subname + "' is already bound");
101 } else {
102 subcontext = (Context ) object;
103 }
104 } catch (NameNotFoundException exception) {
105 subcontext = subcontext.createSubcontext(component);
106 }
107 }
108
109 component = composite.get(composite.size() - 1);
110 if (component.length() == 0) {
111 throw new InvalidNameException ("'" + name
112 + "' is not a valid name");
113 }
114
115 try {
116 Object object = subcontext.lookup(component);
117 if (object instanceof Context ) {
118 throw new NameAlreadyBoundException ("'" + name +
119 "' is already bound");
120 }
121 } catch (NameNotFoundException ignore) {
122 } catch (NamingException exception) {
123 }
124
125 subcontext.rebind(component, destination);
126 }
127
128
138 public static void unbind(Context context, String name)
139 throws NamingException {
140 try {
141 Object object = context.lookup(name);
142 if (!(object instanceof JmsDestination)) {
143 throw new NamingException (
144 "Cannot unbind name='" + name
145 + "': it does not refer to a Destination");
146 }
147 context.unbind(name);
148 } catch (NameNotFoundException ignore) {
149 }
150 }
151
152 private static CompositeName getCompositeName(String name)
153 throws NamingException {
154 CompositeName composite = new CompositeName (name.replace('.', '/'));
157 if (composite.size() == 0) {
158 throw new InvalidNameException ("'" + name
159 + "' is not a valid name");
160 }
161 return composite;
162 }
163 }
164 |
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