CompiledClassReflector


1   package org.apache.ws.jaxme.js.pattern;
2   
3   import java.lang.reflect.Method  ;
4   
5   import org.apache.ws.jaxme.js.JavaMethod;
6   import org.apache.ws.jaxme.js.JavaQNameImpl;
7   import org.apache.ws.jaxme.js.JavaSource;
8   import org.apache.ws.jaxme.js.JavaSourceFactory;
9   
10  
11  /** Reflector for gathering information on a compiled class.
12   */
13  public class CompiledClassReflector implements Reflector {
14      private final Class   compiledClass;
15  
16      /** Creates a new instance of <code>CompiledClassReflector</code>,
17       * reading information from the given class.
18       * @param pClass
19       */
20      public CompiledClassReflector(Class   pClass) {
21          compiledClass = pClass;
22      }
23      
24      /** Creates a new instance of <code>CompiledClassReflector</code>,
25       * which loads the class named <code>pName</code> through
26       * {@link ClassLoader pClassLoader}.
27       */
28      public CompiledClassReflector(String   pName, ClassLoader   pClassLoader)
29              throws ClassNotFoundException   {
30          this(pClassLoader.loadClass(pName));
31      }
32      
33      /** <p>Converts the given {@link Method} into an instance of
34       * {@link JavaSource}.</p>
35       */
36      protected JavaMethod getMethod(JavaSource pSource, Method   pMethod) {
37          JavaMethod method = pSource.newJavaMethod(pMethod.getName(),
38                                                    JavaQNameImpl.getInstance(pMethod.getReturnType()),
39                                                    JavaSource.PUBLIC);
40          Class  [] classes = pMethod.getParameterTypes();
41          for (int i = 0;  i < classes.length;  i++) {
42              method.addParam(classes[i], "arg" + i);
43          }
44          Class  [] exceptions = pMethod.getExceptionTypes();
45          for (int i = 0;  i < exceptions.length;  i++) {
46              method.addThrows(exceptions[i]);
47          }
48          return method;
49      }
50      
51      /** Returns the compiled class being used to gather information.
52       */
53      public Class   getCompiledClass() {
54          return compiledClass;
55      }
56      
57      /** Reads the interface methods and converts them
58       * into an instance of {@link JavaSource}.
59       */
60      public JavaSource getJavaSource(JavaSourceFactory pFactory) {
61          Class   c = getCompiledClass();
62          JavaSource js = new JavaSourceFactory().newJavaSource(JavaQNameImpl.getInstance(c.getName(), true));
63          Method  [] methods = c.getMethods();
64          for (int i = 0;  i < methods.length;  i++) {
65              Method   m = methods[i];
66              getMethod(js, m);
67          }
68          return js;
69      }
70  }
71
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