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package org.mule.config.spring.jndi; |
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import java.io.Serializable; |
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import java.util.HashMap; |
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import java.util.Hashtable; |
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import java.util.Iterator; |
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import java.util.Map; |
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import javax.naming.Binding; |
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import javax.naming.CompositeName; |
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import javax.naming.Context; |
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import javax.naming.LinkRef; |
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import javax.naming.Name; |
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import javax.naming.NameClassPair; |
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import javax.naming.NameNotFoundException; |
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import javax.naming.NameParser; |
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import javax.naming.NamingEnumeration; |
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import javax.naming.NamingException; |
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import javax.naming.NotContextException; |
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import javax.naming.OperationNotSupportedException; |
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import javax.naming.Reference; |
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import javax.naming.spi.NamingManager; |
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public class DefaultSpringJndiContext implements Context, Serializable |
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{ |
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private static final long serialVersionUID = -5754338187296859149L; |
42 | 0 | protected static final NameParser nameParser = new DefaultNameParser(); |
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|
44 | 0 | private boolean freeze = false; |
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protected final Hashtable environment; |
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protected final Map bindings; |
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protected final Map treeBindings; |
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|
50 | 0 | private boolean frozen = false; |
51 | 0 | private String nameInNamespace = ""; |
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public static final String SEPARATOR = "/"; |
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|
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public DefaultSpringJndiContext() |
55 | 0 | { |
56 | 0 | environment = new Hashtable(); |
57 | 0 | bindings = new HashMap(); |
58 | 0 | treeBindings = new HashMap(); |
59 | 0 | } |
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|
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public DefaultSpringJndiContext(Hashtable env) |
62 | 0 | { |
63 | 0 | if (env == null) |
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{ |
65 | 0 | this.environment = new Hashtable(); |
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} |
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else |
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{ |
69 | 0 | this.environment = new Hashtable(env); |
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} |
71 | 0 | this.bindings = new HashMap(); |
72 | 0 | this.treeBindings = new HashMap(); |
73 | 0 | } |
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|
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public DefaultSpringJndiContext(Hashtable environment, Map bindings) |
76 | 0 | { |
77 | 0 | if (environment == null) |
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{ |
79 | 0 | this.environment = new Hashtable(); |
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} |
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else |
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{ |
83 | 0 | this.environment = new Hashtable(environment); |
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} |
85 | 0 | this.bindings = bindings; |
86 | 0 | treeBindings = new HashMap(); |
87 | 0 | frozen = true; |
88 | 0 | } |
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|
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public DefaultSpringJndiContext(Hashtable environment, Map bindings, String nameInNamespace) |
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{ |
92 | 0 | this(environment, bindings); |
93 | 0 | this.nameInNamespace = nameInNamespace; |
94 | 0 | } |
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protected DefaultSpringJndiContext(DefaultSpringJndiContext clone, Hashtable env) |
97 | 0 | { |
98 | 0 | this.bindings = clone.bindings; |
99 | 0 | this.treeBindings = clone.treeBindings; |
100 | 0 | this.environment = new Hashtable(env); |
101 | 0 | } |
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protected DefaultSpringJndiContext(DefaultSpringJndiContext clone, Hashtable env, String nameInNamespace) |
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{ |
105 | 0 | this(clone, env); |
106 | 0 | this.nameInNamespace = nameInNamespace; |
107 | 0 | } |
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public Object addToEnvironment(String propName, Object propVal) throws NamingException |
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{ |
111 | 0 | return environment.put(propName, propVal); |
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} |
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public Hashtable getEnvironment() throws NamingException |
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{ |
116 | 0 | return (Hashtable) environment.clone(); |
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} |
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public Object removeFromEnvironment(String propName) throws NamingException |
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{ |
121 | 0 | return environment.remove(propName); |
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} |
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public Object lookup(String name) throws NamingException |
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{ |
126 | 0 | if (name.length() == 0) |
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{ |
128 | 0 | return this; |
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} |
130 | 0 | Object result = treeBindings.get(name); |
131 | 0 | if (result == null) |
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{ |
133 | 0 | result = bindings.get(name); |
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} |
135 | 0 | if (result == null) |
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{ |
137 | 0 | int pos = name.indexOf(':'); |
138 | 0 | if (pos > 0) |
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{ |
140 | 0 | String scheme = name.substring(0, pos); |
141 | 0 | Context ctx = NamingManager.getURLContext(scheme, environment); |
142 | 0 | if (ctx == null) |
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{ |
144 | 0 | throw new NamingException("scheme " + scheme + " not recognized"); |
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} |
146 | 0 | return ctx.lookup(name); |
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} |
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else |
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{ |
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|
152 | 0 | CompositeName path = new CompositeName(name); |
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|
154 | 0 | if (path.size() == 0) |
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{ |
156 | 0 | return this; |
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} |
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else |
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{ |
160 | 0 | String first = path.get(0); |
161 | 0 | Object obj = bindings.get(first); |
162 | 0 | if (obj == null) |
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{ |
164 | 0 | throw new NameNotFoundException(name); |
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} |
166 | 0 | else if (obj instanceof Context && path.size() > 1) |
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{ |
168 | 0 | Context subContext = (Context) obj; |
169 | 0 | obj = subContext.lookup(path.getSuffix(1)); |
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} |
171 | 0 | return obj; |
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} |
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} |
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} |
175 | 0 | if (result instanceof LinkRef) |
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{ |
177 | 0 | LinkRef ref = (LinkRef) result; |
178 | 0 | result = lookup(ref.getLinkName()); |
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} |
180 | 0 | if (result instanceof Reference) |
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{ |
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try |
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{ |
184 | 0 | result = NamingManager.getObjectInstance(result, null, null, this.environment); |
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} |
186 | 0 | catch (NamingException e) |
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{ |
188 | 0 | throw e; |
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} |
190 | 0 | catch (Exception e) |
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{ |
192 | 0 | throw (NamingException) new NamingException("could not look up : " + name).initCause(e); |
193 | 0 | } |
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} |
195 | 0 | if (result instanceof DefaultSpringJndiContext) |
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{ |
197 | 0 | String prefix = getNameInNamespace(); |
198 | 0 | if (prefix.length() > 0) |
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{ |
200 | 0 | prefix = prefix + SEPARATOR; |
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} |
202 | 0 | result = new DefaultSpringJndiContext((DefaultSpringJndiContext) result, environment, prefix + name); |
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} |
204 | 0 | return result; |
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} |
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public Object lookup(Name name) throws NamingException |
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{ |
209 | 0 | return lookup(name.toString()); |
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} |
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public Object lookupLink(String name) throws NamingException |
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{ |
214 | 0 | return lookup(name); |
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} |
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public Name composeName(Name name, Name prefix) throws NamingException |
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{ |
219 | 0 | Name result = (Name) prefix.clone(); |
220 | 0 | result.addAll(name); |
221 | 0 | return result; |
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} |
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public String composeName(String name, String prefix) throws NamingException |
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{ |
226 | 0 | CompositeName result = new CompositeName(prefix); |
227 | 0 | result.addAll(new CompositeName(name)); |
228 | 0 | return result.toString(); |
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} |
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public NamingEnumeration list(String name) throws NamingException |
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{ |
233 | 0 | Object o = lookup(name); |
234 | 0 | if (o == this) |
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{ |
236 | 0 | return new DefaultSpringJndiContext.ListEnumeration(); |
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} |
238 | 0 | else if (o instanceof Context) |
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{ |
240 | 0 | return ((Context) o).list(""); |
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} |
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else |
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{ |
244 | 0 | throw new NotContextException(); |
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} |
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} |
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public NamingEnumeration listBindings(String name) throws NamingException |
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{ |
250 | 0 | Object o = lookup(name); |
251 | 0 | if (o == this) |
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{ |
253 | 0 | return new DefaultSpringJndiContext.ListBindingEnumeration(); |
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} |
255 | 0 | else if (o instanceof Context) |
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{ |
257 | 0 | return ((Context) o).listBindings(""); |
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} |
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else |
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{ |
261 | 0 | throw new NotContextException(); |
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} |
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} |
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public Object lookupLink(Name name) throws NamingException |
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{ |
267 | 0 | return lookupLink(name.toString()); |
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} |
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public NamingEnumeration list(Name name) throws NamingException |
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{ |
272 | 0 | return list(name.toString()); |
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} |
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public NamingEnumeration listBindings(Name name) throws NamingException |
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{ |
277 | 0 | return listBindings(name.toString()); |
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} |
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public void bind(Name name, Object value) throws NamingException |
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{ |
282 | 0 | bind(name.toString(), value); |
283 | 0 | } |
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public void bind(String name, Object value) throws NamingException |
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{ |
287 | 0 | checkFrozen(); |
288 | 0 | internalBind(name, value); |
289 | 0 | } |
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public void close() throws NamingException |
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{ |
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294 | 0 | } |
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public Context createSubcontext(Name name) throws NamingException |
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{ |
298 | 0 | throw new OperationNotSupportedException(); |
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} |
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public Context createSubcontext(String name) throws NamingException |
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{ |
303 | 0 | throw new OperationNotSupportedException(); |
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} |
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public void destroySubcontext(Name name) throws NamingException |
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{ |
308 | 0 | throw new OperationNotSupportedException(); |
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} |
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public void destroySubcontext(String name) throws NamingException |
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{ |
313 | 0 | throw new OperationNotSupportedException(); |
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} |
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public String getNameInNamespace() throws NamingException |
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{ |
318 | 0 | return nameInNamespace; |
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} |
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public NameParser getNameParser(Name name) throws NamingException |
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{ |
323 | 0 | return nameParser; |
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} |
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public NameParser getNameParser(String name) throws NamingException |
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{ |
328 | 0 | return nameParser; |
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} |
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public void rebind(Name name, Object value) throws NamingException |
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{ |
333 | 0 | rebind(name.toString(), value); |
334 | 0 | } |
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public void rebind(String name, Object value) throws NamingException |
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{ |
338 | 0 | checkFrozen(); |
339 | 0 | internalBind(name, value, true); |
340 | 0 | } |
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public void rename(Name oldName, Name newName) throws NamingException |
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{ |
344 | 0 | checkFrozen(); |
345 | 0 | Object value = lookup(oldName); |
346 | 0 | unbind(oldName); |
347 | 0 | bind(newName, value); |
348 | 0 | } |
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public void rename(String oldName, String newName) throws NamingException |
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{ |
352 | 0 | Object value = lookup(oldName); |
353 | 0 | unbind(oldName); |
354 | 0 | bind(newName, value); |
355 | 0 | } |
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public void unbind(Name name) throws NamingException |
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{ |
359 | 0 | unbind(name.toString()); |
360 | 0 | } |
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public void unbind(String name) throws NamingException |
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{ |
364 | 0 | checkFrozen(); |
365 | 0 | internalBind(name, null, true); |
366 | 0 | } |
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|
368 | 0 | private abstract class AbstractLocalNamingEnumeration implements NamingEnumeration |
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{ |
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|
371 | 0 | private Iterator i = bindings.entrySet().iterator(); |
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public boolean hasMore() throws NamingException |
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{ |
375 | 0 | return i.hasNext(); |
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} |
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public boolean hasMoreElements() |
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{ |
380 | 0 | return i.hasNext(); |
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} |
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protected Map.Entry getNext() |
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{ |
385 | 0 | return (Map.Entry) i.next(); |
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} |
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public void close() throws NamingException |
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{ |
390 | 0 | } |
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} |
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|
393 | 0 | private class ListEnumeration extends AbstractLocalNamingEnumeration |
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{ |
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public Object next() throws NamingException |
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{ |
398 | 0 | return nextElement(); |
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} |
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public Object nextElement() |
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{ |
403 | 0 | Map.Entry entry = getNext(); |
404 | 0 | return new NameClassPair((String) entry.getKey(), entry.getValue().getClass().getName()); |
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} |
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} |
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|
408 | 0 | private class ListBindingEnumeration extends AbstractLocalNamingEnumeration |
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{ |
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public Object next() throws NamingException |
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{ |
413 | 0 | return nextElement(); |
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} |
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public Object nextElement() |
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{ |
418 | 0 | Map.Entry entry = getNext(); |
419 | 0 | return new Binding((String) entry.getKey(), entry.getValue()); |
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} |
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} |
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public Map getEntries() |
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{ |
425 | 0 | return new HashMap(bindings); |
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} |
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public void setEntries(Map entries) throws NamingException |
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{ |
430 | 0 | if (entries != null) |
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{ |
432 | 0 | for (Iterator iter = entries.entrySet().iterator(); iter.hasNext();) |
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{ |
434 | 0 | Map.Entry entry = (Map.Entry) iter.next(); |
435 | 0 | String name = (String) entry.getKey(); |
436 | 0 | Object value = entry.getValue(); |
437 | 0 | internalBind(name, value); |
438 | 0 | } |
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} |
440 | 0 | } |
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public boolean isFreeze() |
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{ |
444 | 0 | return freeze; |
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} |
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public void setFreeze(boolean freeze) |
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{ |
449 | 0 | this.freeze = freeze; |
450 | 0 | } |
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protected Map internalBind(String name, Object value) throws NamingException |
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{ |
466 | 0 | return internalBind(name, value, false); |
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} |
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protected Map internalBind(String name, Object value, boolean allowRebind) throws NamingException |
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{ |
472 | 0 | if (name == null || name.length() == 0) |
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{ |
474 | 0 | throw new NamingException("Invalid Name " + name); |
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} |
476 | 0 | if (frozen) |
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{ |
478 | 0 | throw new NamingException("Read only"); |
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} |
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|
481 | 0 | Map newBindings = new HashMap(); |
482 | 0 | int pos = name.indexOf('/'); |
483 | 0 | if (pos == -1) |
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{ |
485 | 0 | Object oldValue = treeBindings.put(name, value); |
486 | 0 | if (!allowRebind && oldValue != null) |
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{ |
488 | 0 | throw new NamingException("Something already bound at " + name); |
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} |
490 | 0 | bindings.put(name, value); |
491 | 0 | newBindings.put(name, value); |
492 | 0 | } |
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else |
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{ |
495 | 0 | String segment = name.substring(0, pos); |
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|
497 | 0 | if (segment == null || segment.length() == 0) |
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{ |
499 | 0 | throw new NamingException("Invalid segment " + segment); |
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} |
501 | 0 | Object o = treeBindings.get(segment); |
502 | 0 | if (o == null) |
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{ |
504 | 0 | o = newContext(); |
505 | 0 | treeBindings.put(segment, o); |
506 | 0 | bindings.put(segment, o); |
507 | 0 | newBindings.put(segment, o); |
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} |
509 | 0 | else if (!(o instanceof DefaultSpringJndiContext)) |
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{ |
511 | 0 | throw new NamingException("Something already bound where a subcontext should go"); |
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} |
513 | 0 | DefaultSpringJndiContext defaultContext = (DefaultSpringJndiContext) o; |
514 | 0 | String remainder = name.substring(pos + 1); |
515 | 0 | Map subBindings = defaultContext.internalBind(remainder, value, allowRebind); |
516 | 0 | for (Iterator iterator = subBindings.entrySet().iterator(); iterator.hasNext();) |
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{ |
518 | 0 | Map.Entry entry = (Map.Entry) iterator.next(); |
519 | 0 | String subName = segment + "/" + (String) entry.getKey(); |
520 | 0 | Object bound = entry.getValue(); |
521 | 0 | treeBindings.put(subName, bound); |
522 | 0 | newBindings.put(subName, bound); |
523 | 0 | } |
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} |
525 | 0 | return newBindings; |
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} |
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protected void checkFrozen() throws OperationNotSupportedException |
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{ |
530 | 0 | if (isFreeze()) |
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{ |
532 | 0 | throw new OperationNotSupportedException("JNDI context is frozen!"); |
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} |
534 | 0 | } |
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protected DefaultSpringJndiContext newContext() |
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{ |
538 | 0 | return new DefaultSpringJndiContext(); |
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} |
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|
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} |
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|