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1
22
23
24 package com.mchange.v2.naming;
25
26 import java.io.InvalidObjectException  ;
27 import java.io.IOException ;
28 import java.util.Hashtable ;
29 import javax.naming.Context ;
30 import javax.naming.InitialContext ;
31 import javax.naming.Name ;
32 import javax.naming.NamingException ;
33 import javax.naming.Reference ;
34 import javax.naming.Referenceable ;
35 import com.mchange.v2.log.MLevel;
36 import com.mchange.v2.log.MLog;
37 import com.mchange.v2.log.MLogger;
38 import com.mchange.v2.ser.Indirector;
39 import com.mchange.v2.ser.IndirectlySerialized;
40
41 public class ReferenceIndirector implements Indirector
42 {
43 final static MLogger logger = MLog.getLogger( ReferenceIndirector.class );
44
45 Name name;
46 Name contextName;
47 Hashtable environmentProperties;
48
49 public Name getName()
50 { return name; }
51
52 public void setName( Name name )
53 { this.name = name; }
54
55 public Name getNameContextName()
56 { return contextName; }
57
58 public void setNameContextName( Name contextName )
59 { this.contextName = contextName; }
60
61 public Hashtable getEnvironmentProperties()
62 { return environmentProperties; }
63
64 public void setEnvironmentProperties( Hashtable environmentProperties )
65 { this.environmentProperties = environmentProperties; }
66
67 public IndirectlySerialized indirectForm( Object orig ) throws Exception
68 {
69 Reference ref = ((Referenceable ) orig).getReference();
70 return new ReferenceSerialized( ref, name, contextName, environmentProperties );
71 }
72
73 private static class ReferenceSerialized implements IndirectlySerialized
74 {
75 Reference reference;
76 Name name;
77 Name contextName;
78 Hashtable env;
79
80 ReferenceSerialized( Reference reference,
81 Name name,
82 Name contextName,
83 Hashtable env )
84 {
85 this.reference = reference;
86 this.name = name;
87 this.contextName = contextName;
88 this.env = env;
89 }
90
91
92 public Object getObject() throws ClassNotFoundException , IOException
93 {
94 try
95 {
96 Context initialContext;
97 if ( env == null )
98 initialContext = new InitialContext ();
99 else
100 initialContext = new InitialContext ( env );
101
102 Context nameContext = null;
103 if ( contextName != null )
104 nameContext = (Context ) initialContext.lookup( contextName );
105
106 return ReferenceableUtils.referenceToObject( reference, name, nameContext, env );
107 }
108 catch (NamingException e)
109 {
110 if ( logger.isLoggable( MLevel.WARNING ) )
112 logger.log( MLevel.WARNING, "Failed to acquire the Context necessary to lookup an Object.", e );
113 throw new InvalidObjectException ( "Failed to acquire the Context necessary to lookup an Object: " + e.toString() );
114 }
115 }
116 }
117 }
118 |
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