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1
29
30 package com.caucho.ejb.gen;
31
32 import com.caucho.bytecode.JClass;
33 import com.caucho.java.JavaWriter;
34 import com.caucho.util.L10N;
35
36 import java.io.IOException  ;
37
38
41 public class StatelessBean extends SessionBean {
42 private static final L10N L = new L10N(StatelessBean.class);
43
44 public StatelessBean(JClass ejbClass, String contextClassName)
45 {
46 super(ejbClass, contextClassName);
47 }
48
49 protected void generateContext(JavaWriter out)
50 throws IOException
51 {
52 String shortContextName = _contextClassName;
53 int p = shortContextName.lastIndexOf('.');
54
55 if (p > 0)
56 shortContextName = shortContextName.substring(p + 1);
57
58 int freeStackMax = 16;
59
60 out.println("protected static final java.util.logging.Logger __caucho_log = com.caucho.log.Log.open(" + _contextClassName + ".class);");
61 out.println();
62 out.println("com.caucho.ejb.xa.EjbTransactionManager _xaManager;");
63
64 out.println("private Bean []_freeBeanStack = new Bean[" + freeStackMax + "];");
65 out.println("private int _freeBeanTop;");
66 out.println();
67 out.println("public " + shortContextName + "(com.caucho.ejb.session.StatelessServer server)");
68 out.println("{");
69 out.println(" super(server);");
70 out.println(" _xaManager = server.getContainer().getTransactionManager();");
71 out.println("}");
72
73 out.println();
74 out.println("Bean _ejb_begin(com.caucho.ejb.xa.TransactionContext trans)");
75 out.println(" throws javax.ejb.EJBException");
76 out.println("{");
77 out.pushDepth();
78 out.println("Bean bean;");
79 out.println("synchronized (this) {");
80 out.println(" if (_freeBeanTop > 0) {");
81 out.println(" bean = _freeBeanStack[--_freeBeanTop];");
82 out.println(" return bean;");
83 out.println(" }");
84 out.println("}");
85 out.println();
86 out.println("try {");
87 out.println(" bean = new Bean(this);");
88
89 if (hasMethod("ejbCreate", new JClass[0])) {
90 out.println(" bean.ejbCreate();");
91 }
92
93 out.println(" return bean;");
94 out.println("} catch (Exception e) {");
95 out.println(" throw com.caucho.ejb.EJBExceptionWrapper.create(e);");
96 out.println("}");
97 out.popDepth();
98 out.println("}");
99
100 out.println();
101 out.println("void _ejb_free(Bean bean)");
102 out.println(" throws javax.ejb.EJBException");
103 out.println("{");
104 out.pushDepth();
105 out.println("if (bean == null)");
106 out.println(" return;");
107 out.println();
108 out.println("synchronized (this) {");
109 out.println(" if (_freeBeanTop < _freeBeanStack.length) {");
110 out.println(" _freeBeanStack[_freeBeanTop++] = bean;");
111 out.println(" return;");
112 out.println(" }");
113 out.println("}");
114
115 if (hasMethod("ejbRemove", new JClass[0])) {
116 out.println();
117 out.println("bean.ejbRemove();");
118 }
119
120 out.popDepth();
121 out.println("}");
122
123 out.println();
124 out.println("public void destroy()");
125 out.println("{");
126 out.pushDepth();
127 out.println("Bean ptr;");
128 out.println("Bean []freeBeanStack;");
129 out.println("int freeBeanTop;");
130
131 out.println("synchronized (this) {");
132 out.println(" freeBeanStack = _freeBeanStack;");
133 out.println(" freeBeanTop = _freeBeanTop;");
134 out.println(" _freeBeanStack = null;");
135 out.println(" _freeBeanTop = 0;");
136 out.println("}");
137
138 if (hasMethod("ejbRemove", new JClass[0])) {
139 out.println();
140 out.println("for (int i = 0; i < freeBeanTop; i++) {");
141 out.pushDepth();
142
143 out.println("try {");
144 out.println(" if (freeBeanStack[i] != null)");
145 out.println(" freeBeanStack[i].ejbRemove();");
146 out.println("} catch (Throwable e) {");
147 out.println(" __caucho_log.log(java.util.logging.Level.FINE, e.toString(), e);");
148 out.println("}");
149
150 out.popDepth();
151 out.println("}");
152 }
153 out.popDepth();
154 out.println("}");
155 }
156
157 protected void generateNewInstance(JavaWriter out)
158 throws IOException
159 {
160 }
161 }
162 |
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