com.sun.xml.ws.model.FieldSignature Maven / Gradle / Ivy
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package com.sun.xml.ws.model;
import java.lang.reflect.*;
/**
* Creates vm signature string from Type
*
* TypeSignature: Z | C | B | S | I | F | J | D | FieldTypeSignature
* FieldTypeSignature: ClassTypeSignature | [ TypeSignature | TypeVar
* ClassTypeSignature: L Id ( / Id )* TypeArgs? ( . Id TypeArgs? )* ;
* TypeArgs: < TypeArg+ >
* TypeArg: * | ( + | - )? FieldTypeSignature
* TypeVar: T Id ;
*
* @author Jitendra Kotamraju
*/
final class FieldSignature {
static String vms(Type t) {
if (t instanceof Class && ((Class)t).isPrimitive()) {
Class c = (Class)t;
if (c == Integer.TYPE) {
return "I";
} else if (c == Void.TYPE) {
return "V";
} else if (c == Boolean.TYPE) {
return "Z";
} else if (c == Byte.TYPE) {
return "B";
} else if (c == Character.TYPE) {
return "C";
} else if (c == Short.TYPE) {
return "S";
} else if (c == Double.TYPE) {
return "D";
} else if (c == Float.TYPE) {
return "F";
} else if (c == Long.TYPE) {
return "J";
}
} else if (t instanceof Class && ((Class)t).isArray()) {
return "["+vms(((Class)t).getComponentType());
} else if (t instanceof Class || t instanceof ParameterizedType) {
return "L"+fqcn(t)+";";
} else if (t instanceof GenericArrayType) {
return "["+vms(((GenericArrayType)t).getGenericComponentType());
} else if (t instanceof TypeVariable) {
// While creating wrapper bean fields, it doesn't create with TypeVariables
// Otherwise, the type variable need to be declared in the wrapper bean class
// return "T"+((TypeVariable)t).getName()+";";
return "Ljava/lang/Object;";
} else if (t instanceof WildcardType) {
WildcardType w = (WildcardType)t;
if (w.getLowerBounds().length > 0) {
return "-"+vms(w.getLowerBounds()[0]);
} else if (w.getUpperBounds().length > 0) {
Type wt = w.getUpperBounds()[0];
if (wt.equals(Object.class)) {
return "*";
} else {
return "+"+vms(wt);
}
}
}
throw new IllegalArgumentException("Illegal vms arg " + t);
}
private static String fqcn(Type t) {
if (t instanceof Class) {
Class c = (Class)t;
if (c.getDeclaringClass() == null) {
return c.getName().replace('.', '/');
} else {
return fqcn(c.getDeclaringClass())+"$"+c.getSimpleName();
}
} else if (t instanceof ParameterizedType) {
ParameterizedType p = (ParameterizedType)t;
if (p.getOwnerType() == null) {
return fqcn(p.getRawType())+args(p);
} else {
assert p.getRawType() instanceof Class;
return fqcn(p.getOwnerType())+"."+
((Class)p.getRawType()).getSimpleName()+args(p);
}
}
throw new IllegalArgumentException("Illegal fqcn arg = "+t);
}
private static String args(ParameterizedType p) {
StringBuilder sig = new StringBuilder("<");
for(Type t : p.getActualTypeArguments()) {
sig.append(vms(t));
}
return sig.append(">").toString();
}
}