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1
29
30 package hero.util;
31
32 import javax.naming.Context  ;
33 import javax.naming.InitialContext ;
34 import javax.naming.NamingException ;
35 import java.util.Map ;
36 import java.util.HashMap ;
37
38 import javax.rmi.PortableRemoteObject ;
39 import javax.mail.Session ;
40
41 public class BonitaServiceLocator {
42 private static BonitaServiceLocator msl;
43 private Map cache;
44 private static Context initial;
45
46
47 private BonitaServiceLocator() throws BonitaServiceException {
48 try {
49 initial=new InitialContext ();
50 cache = new HashMap ();
51 } catch (javax.naming.NamingException ne) {
52 throw new BonitaServiceException(ne.getMessage());
53 }
54 }
55
56 static public BonitaServiceLocator getInstance() throws BonitaServiceException {
57
58 if (msl==null) {
59 msl=new BonitaServiceLocator();
60 }
61 return msl;
62 }
63
64
66 public class Services {
67 final public static int TOPIC_CONNECTION_FACTORY=0;
68 final public static int TOPIC=1;
69 final public static int MAIL_SERVICE=2;
70 }
71
72
74 final static String TOPIC_CONNECTION_FACTORY_NAME = "TCF";
75 final static String TOPIC_NAME = "testTopic";
76
77 final static String MAIL_SERVICE_NAME = "Mail";
79
80
82
83 static private String getServiceName(int service) {
84 switch (service) {
85 case Services.TOPIC_CONNECTION_FACTORY: return TOPIC_CONNECTION_FACTORY_NAME;
86 case Services.TOPIC: return TOPIC_NAME;
87 case Services.MAIL_SERVICE: return MAIL_SERVICE_NAME;
88 }
89 return null;
90 }
91
92
95 public Object getResource(int s) throws BonitaServiceException {
96 Object resource=null;
97 try {
98 String serv = getServiceName(s);
99 if (cache.containsKey(serv)) {
100 resource = (Object ) cache.get(serv);
101 } else {
102 Object objref = initial.lookup(serv);
103 resource=objref;
104 cache.put(serv, resource);
105 }
106 } catch (NamingException ex) {
107 throw new BonitaServiceException("ServiceException");
108 } catch (Exception ex) {
109 System.out.println("ServiceLocator Exception");
110 ex.printStackTrace();
111 }
112
113 return resource;
114 }
115
116 public Object getMailSession(int s) throws BonitaServiceException {
117 Object mail=null;
118 try {
119 String serv = getServiceName(s);
120 if (cache.containsKey(serv)) {
121 mail = (Object ) cache.get(serv);
122 } else {
123 Object objref = initial.lookup(serv);
124 mail= PortableRemoteObject.narrow(objref,Session .class);
125 cache.put(serv, mail);
126 }
127 } catch (NamingException ex) {
128 throw new BonitaServiceException("ServiceException");
129 } catch (Exception ex) {
130 System.out.println("ServiceLocator Exception");
131 ex.printStackTrace();
132 }
133
134 return mail;
135 }
136
137 }
138 |
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