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1
28
29 package com.caucho.iiop;
30
31 import com.caucho.java.AbstractGenerator;
32 import com.caucho.server.util.CauchoSystem;
33 import com.caucho.vfs.MergePath;
34 import com.caucho.vfs.Path;
35
36 import javax.ejb.EJBHome  ;
37 import javax.ejb.EJBObject ;
38 import java.io.IOException ;
39 import java.lang.reflect.Method ;
40
41 public class IiopStubCompiler extends AbstractGenerator {
42 private Class _cl;
43
44 public IiopStubCompiler(Class cl)
45 {
46 _cl = cl;
47
48 String name = cl.getName();
49
50
53 int p = name.lastIndexOf('.');
54 if (p > 0) {
55 String pkg = name.substring(0, p);
56 String tail = name.substring(p + 1);
57 setFullClassName(pkg + "._" + tail + "_Stub");
58 }
59 else
60 setFullClassName("_" + name + "_Stub");
61 }
62
63
66 public void generateJava()
67 throws Exception
68 {
69 printHeader();
70
71 Method []methods = _cl.getMethods();
72 for (int i = 0; i < methods.length; i++) {
73 Method method = methods[i];
74
75 if (method.getDeclaringClass().isAssignableFrom(EJBHome .class) ||
76 method.getDeclaringClass().isAssignableFrom(EJBObject .class))
77 continue;
78
79 printMethod(method);
80 }
81
82 printFooter();
83 }
84
85
88 private void printHeader()
89 throws IOException
90 {
91 println("/*");
92 println(" * Generated by Resin-EJB IiopStubCompiler");
93 println(" */");
94 println();
95
96 if (getPackageName() != null)
97 println("package " + getPackageName() + ";");
98
99 println();
100 print("public class " + getClassName());
101 if (EJBHome .class.isAssignableFrom(_cl))
102 println(" extends com.caucho.iiop.client.IiopHomeStub");
103 else
104 println(" extends com.caucho.iiop.client.IiopStub");
105 println(" implements " + _cl.getName() + " {");
106 pushDepth();
107
108 println("private static final String[] _type_ids = {");
109 println(" \"RMI:" + _cl.getName() + ":0000000000000000\"");
110 println("};");
111
112 println();
113 println("public String[] _ids()");
114 println("{");
115 println(" return _type_ids;");
116 println("}");
117 }
118
119
122 private void printMethod(Method method)
123 throws IOException
124 {
125 printMethodHeader(method);
126 println("{");
127 pushDepth();
128
129 println("org.omg.CORBA_2_3.portable.OutputStream os = null;");
130 println("try {");
131 pushDepth();
132
133 println("os = (org.omg.CORBA_2_3.portable.OutputStream) _request(\"" + method.getName() + "\", true);");
134
135 Class []args = method.getParameterTypes();
136 for (int i = 0; i < args.length; i++) {
137 printSetValue(args[i], "a" + i);
138 }
139
140 println("org.omg.CORBA_2_3.portable.InputStream is;");
141 println("is = (org.omg.CORBA_2_3.portable.InputStream) _invoke(os);");
142
143 Class returnType = method.getReturnType();
144
145 if (returnType.equals(void.class)) {
146 }
147 else {
148 print("return ");
149 printGetValue(returnType);
150 println(";");
151 }
152
153 popDepth();
154 println("} catch (org.omg.CORBA.portable.ApplicationException e) {");
155 println(" org.omg.CORBA_2_3.portable.InputStream in = (org.omg.CORBA_2_3.portable.InputStream) e.getInputStream();");
157 println(" String name = in.read_string();");
158 println(" Throwable ex = (Throwable) in.read_value();");
159 for (Class ex : method.getExceptionTypes()) {
160 println(" if (ex instanceof " + ex.getName() + ")");
161 println(" throw (" + ex.getName() + ") ex;");
162 }
163 println(" throw new java.rmi.RemoteException(ex.getMessage(), ex);");
164 println("} catch (Exception e) {");
165 println(" e.printStackTrace();");
166 println(" throw new java.rmi.RemoteException(e.getMessage(), e);");
167 println("}");
168
169 popDepth();
170 println("}");
171 }
172
173 private void printGetValue(Class type)
174 throws IOException
175 {
176 if (type.equals(boolean.class))
177 print("is.read_boolean()");
178 else if (type.equals(byte.class))
179 print("is.read_octet()");
180 else if (type.equals(short.class))
181 print("is.read_short()");
182 else if (type.equals(int.class))
183 print("is.read_long()");
184 else if (type.equals(long.class))
185 print("is.read_longlong()");
186 else if (type.equals(float.class))
187 print("is.read_float()");
188 else if (type.equals(double.class))
189 print("is.read_double()");
190 else if (type.equals(char.class))
191 print("is.read_wchar()");
192 else if (javax.ejb.EJBObject .class.isAssignableFrom(type) ||
193 java.rmi.Remote .class.isAssignableFrom(type)) {
194 print("(");
198 printJavaClass(type);
199 print(") is.read_Object(");
200 printJavaClass(type);
201 print(".class)");
202 }
203 else {
204 print("(");
205 printJavaClass(type);
206 print(") is.read_value(");
207 printJavaClass(type);
208 print(".class)");
209 }
210 }
211
212 void printJavaClass(Class type)
213 throws IOException
214 {
215 if (type.isArray()) {
216 printJavaClass(type.getComponentType());
217 print("[]");
218 }
219 else
220 print(type.getName());
221 }
222
223 private void printSetValue(Class type, String value)
224 throws IOException
225 {
226 if (type.equals(boolean.class))
227 println("os.write_boolean(" + value + ");");
228 else if (type.equals(byte.class))
229 println("os.write_octet(" + value + ");");
230 else if (type.equals(short.class))
231 println("os.write_short(" + value + ");");
232 else if (type.equals(int.class))
233 println("os.write_long(" + value + ");");
234 else if (type.equals(long.class))
235 println("os.write_longlong(" + value + ");");
236 else if (type.equals(float.class))
237 println("os.write_float(" + value + ");");
238 else if (type.equals(double.class))
239 println("os.write_double(" + value + ");");
240 else if (type.equals(char.class))
241 println("os.write_wchar(" + value + ");");
242 else
243 println("os.write_value((java.io.Serializable) " + value + ");");
244 }
245
246
249 private void printFooter()
250 throws IOException
251 {
252 popDepth();
253 println("}");
254 }
255
256 public static Class create(String className)
257 throws Exception
258 {
259 Class cl = CauchoSystem.loadClass(className);
260
261 MergePath mergePath = new MergePath();
262 mergePath.addClassPath();
263
264 Path classPath = mergePath.lookup(className.replace('.', '/') + ".class");
265 classPath = ((MergePath) classPath).getBestPath();
266
267 Path dir = classPath.getParent();
268 int i = 0;
269 while ((i = className.indexOf('.', i + 1)) >= 0) {
270 dir = dir.getParent();
271 }
272
273 dir.mkdirs();
274
275 IiopStubCompiler compiler = new IiopStubCompiler(cl);
276 compiler.setClassDir(dir);
277 Class gen = compiler.preload();
278 if (gen != null)
279 return gen;
280
281 compiler.generate();
282
283 return compiler.compile();
284 }
285
286
289 public static void main(String []argv)
290 throws Exception
291 {
292 String className = argv[0];
293
294 System.out.println(create(className));
295 }
296 }
297 |
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