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1
16 package com.jdon.bussinessproxy.target;
17
18 import java.lang.reflect.InvocationTargetException  ;
19 import java.lang.reflect.Method ;
20
21 import javax.ejb.EJBHome ;
22 import javax.ejb.EJBLocalHome ;
23 import javax.ejb.EJBLocalObject ;
24 import javax.ejb.EJBObject ;
25 import javax.naming.InitialContext ;
26
27 import com.jdon.bussinessproxy.TargetMetaDef;
28 import com.jdon.bussinessproxy.meta.DistributedTargetMetaDef;
29 import com.jdon.bussinessproxy.meta.EJBTargetMetaDef;
30 import com.jdon.servicelocator.ServiceLocatorException;
31 import com.jdon.servicelocator.web.ServiceLocator;
32 import com.jdon.util.Debug;
33
34
38 public class EJBObjectFactory {
39 private final static String module = EJBObjectFactory.class.getName();
40
41 private ServiceLocator sl;
42
43
44
47 public EJBObjectFactory(ServiceLocator sl) {
48 super();
49 this.sl = sl;
50 }
51
52 public Object create(TargetMetaDef targetMetaDef) throws Exception {
53 Object obj = null;
54 Debug.logVerbose("[JdonFramework] enter createObject in EJBTargetService " + targetMetaDef.getClassName(), module);
55 try {
56 if (targetMetaDef instanceof EJBTargetMetaDef){
57 return createEJB2(targetMetaDef);
58 }else if (targetMetaDef instanceof DistributedTargetMetaDef){
59 DistributedTargetMetaDef dtargetMetaDef = (DistributedTargetMetaDef)targetMetaDef;
60 Debug.logVerbose("[JdonFramework] this is EJB3 JNDIName=" + dtargetMetaDef.getJndiName(), module);
61 InitialContext ctx = new InitialContext ();
62 obj = ctx.lookup(dtargetMetaDef.getJndiName());
63 }
64 } catch (Exception ex) {
65 Debug.logError("[JdonFramework]create ejb error: " + ex, module);
66 throw new Exception (ex);
67 }
68 Debug.logVerbose("[JdonFramework] enter createObject in EJBTargetService " + obj.getClass().getName(), module);
69 return obj;
70 }
71
72 private Object createEJB2(TargetMetaDef targetMetaDef) throws Exception {
73 EJBTargetMetaDef eJBMetaDef = (EJBTargetMetaDef) targetMetaDef;
74 if (eJBMetaDef.isLocal()) {
75 return createEJBLocal(eJBMetaDef);
76 } else {
77 return createEJBRemote(eJBMetaDef);
78 }
79 }
80
81 private Object createEJBLocal(EJBTargetMetaDef eJBMetaDef) throws Exception {
82 Debug.logVerbose("[JdonFramework] this is EJB2 local "
83 + eJBMetaDef.getClassName(), module);
84 Object obj = null;
85 try {
86 Class [] params = null;
87 Object [] paramos = null;
88 EJBLocalHome home = (EJBLocalHome ) sl.getLocalHome(eJBMetaDef
89 .getJndiName());
90 Method createMethod = home.getClass().getMethod("create", params);
91 obj = (EJBLocalObject ) createMethod.invoke(home, paramos);
92 } catch (SecurityException e) {
93 e.printStackTrace();
94 throw new Exception (e);
95 } catch (IllegalArgumentException e) {
96 e.printStackTrace();
97 throw new Exception (e);
98 } catch (ServiceLocatorException e) {
99 Debug.logError("[JdonFramework]locator error: " + e, module);
100 throw new Exception ("JNID error:" + e);
101 } catch (NoSuchMethodException e) {
102 e.printStackTrace();
103 throw new Exception (e);
104 } catch (IllegalAccessException e) {
105 e.printStackTrace();
106 throw new Exception (e);
107 } catch (InvocationTargetException e) {
108 e.printStackTrace();
109 throw new Exception (e);
110 }
111 return obj;
112 }
113
114 private Object createEJBRemote(EJBTargetMetaDef eJBMetaDef)
115 throws Exception {
116 Debug.logVerbose("[JdonFramework] this is EJB2 remote "
117 + eJBMetaDef.getClassName(), module);
118 Object obj = null;
119 Class [] params = null;
120 Object [] paramos = null;
121 try {
122 EJBHome home = sl.getRemoteHome(eJBMetaDef.getJndiName(),
123 eJBMetaDef.getHomeClass());
124 Method createMethod = home.getClass().getMethod("create", params);
125 obj = (EJBObject ) createMethod.invoke(home, paramos);
126 } catch (SecurityException e) {
127 e.printStackTrace();
128 throw new Exception (e);
129 } catch (IllegalArgumentException e) {
130 e.printStackTrace();
131 throw new Exception (e);
132 } catch (ServiceLocatorException e) {
133 Debug.logError("[JdonFramework]locator error: " + e, module);
134 throw new Exception ("JNID error:" + e);
135 } catch (NoSuchMethodException e) {
136 e.printStackTrace();
137 throw new Exception (e);
138 } catch (IllegalAccessException e) {
139 e.printStackTrace();
140 throw new Exception (e);
141 } catch (InvocationTargetException e) {
142 e.printStackTrace();
143 throw new Exception (e);
144 }
145 return obj;
146 }
147
148 }
149 |
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