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1
55
56 package org.apache.bsf.util.event;
57
58 import java.util.Hashtable  ;
59 import org.apache.bsf.util.event.generator.EventAdapterGenerator;
60
61
82 public class EventAdapterRegistry {
83 private static Hashtable reg = new Hashtable ();
84 private static ClassLoader cl = null;
85 private static String adapterPackage = "org.apache.bsf.util.event.adapters";
86 private static String adapterSuffix = "Adapter";
87 private static boolean dynamic = true;
88
89 public static Class lookup (Class listenerType) {
90 String key = listenerType.getName().replace ('.', '_');
91 Class adapterClass = (Class ) reg.get (key);
92
93 if (adapterClass == null) {
94 String en = key.substring (0, key.lastIndexOf ("Listener"));
95 String cn = adapterPackage + "." + en + adapterSuffix;
96
97 try {
98 adapterClass = (cl != null) ? cl.loadClass (cn) : Class.forName (cn);
100 } catch (ClassNotFoundException e) {
101 if (dynamic) {
102 adapterClass =
104 EventAdapterGenerator.makeEventAdapterClass (listenerType, false);
105 }
106 }
107
108 if (adapterClass != null) {
109 reg.put (key, adapterClass);
110 }
111 }
112
113 return adapterClass;
114 }
115 public static void register (Class listenerType, Class eventAdapterClass) {
116 String key = listenerType.getName().replace('.', '_');
117 reg.put (key, eventAdapterClass);
118 }
119
122 public static void setClassLoader (ClassLoader cloader) {
123 cl = cloader;
124 }
125
135 public static void setDynamic (boolean dynamic) {
136 EventAdapterRegistry.dynamic = dynamic;
137 }
138 }
139 |
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