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package com.sun.tools.ws.processor.modeler.annotation;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.VariableElement;
import javax.lang.model.type.DeclaredType;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import javax.lang.model.util.ElementFilter;
import java.util.Collection;
/**
* @author WS Development Team
*/
final class TypeModeler {
private TypeModeler() {
}
public static TypeElement getDeclaration(TypeMirror typeMirror) {
if (typeMirror != null && typeMirror.getKind().equals(TypeKind.DECLARED))
return (TypeElement) ((DeclaredType) typeMirror).asElement();
return null;
}
public static TypeElement getDeclaringClassMethod(TypeMirror theClass, String methodName, TypeMirror[] args) {
return getDeclaringClassMethod(getDeclaration(theClass), methodName, args);
}
public static TypeElement getDeclaringClassMethod(TypeElement theClass, String methodName, TypeMirror[] args) {
TypeElement retClass = null;
if (theClass.getKind().equals(ElementKind.CLASS)) {
TypeMirror superClass = theClass.getSuperclass();
if (!superClass.getKind().equals(TypeKind.NONE))
retClass = getDeclaringClassMethod(superClass, methodName, args);
}
if (retClass == null) {
for (TypeMirror interfaceType : theClass.getInterfaces()) {
retClass = getDeclaringClassMethod(interfaceType, methodName, args);
}
}
if (retClass == null) {
Collection<? extends ExecutableElement> methods = ElementFilter.methodsIn(theClass.getEnclosedElements());
for (ExecutableElement method : methods) {
if (method.getSimpleName().toString().equals(methodName)) {
retClass = theClass;
break;
}
}
}
return retClass;
}
public static Collection<DeclaredType> collectInterfaces(TypeElement type) {
@SuppressWarnings({"unchecked"})
Collection<DeclaredType> interfaces = (Collection<DeclaredType>) type.getInterfaces();
for (TypeMirror interfaceType : type.getInterfaces()) {
interfaces.addAll(collectInterfaces(getDeclaration(interfaceType)));
}
return interfaces;
}
public static boolean isSubclass(String subTypeName, String superTypeName, ProcessingEnvironment env) {
return isSubclass(env.getElementUtils().getTypeElement(subTypeName), env.getElementUtils().getTypeElement(superTypeName), env);
}
public static boolean isSubclass(TypeElement subType, TypeElement superType, ProcessingEnvironment env) {
return !subType.equals(superType) && isSubElement(subType, superType);
}
public static TypeMirror getHolderValueType(TypeMirror type, TypeElement defHolder, ProcessingEnvironment env) {
TypeElement typeElement = getDeclaration(type);
if (typeElement == null)
return null;
if (isSubElement(typeElement, defHolder)) {
if (type.getKind().equals(TypeKind.DECLARED)) {
Collection<? extends TypeMirror> argTypes = ((DeclaredType) type).getTypeArguments();
if (argTypes.size() == 1) {
return argTypes.iterator().next();
} else if (argTypes.isEmpty()) {
VariableElement member = getValueMember(typeElement);
if (member != null) {
return member.asType();
}
}
}
}
return null;
}
public static VariableElement getValueMember(TypeMirror classType) {
return getValueMember(getDeclaration(classType));
}
public static VariableElement getValueMember(TypeElement type) {
VariableElement member = null;
for (VariableElement field : ElementFilter.fieldsIn(type.getEnclosedElements())) {
if ("value".equals(field.getSimpleName().toString())) {
member = field;
break;
}
}
if (member == null && type.getKind().equals(ElementKind.CLASS))
member = getValueMember(type.getSuperclass());
return member;
}
public static boolean isSubElement(TypeElement d1, TypeElement d2) {
if (d1.equals(d2))
return true;
TypeElement superClassDecl = null;
if (d1.getKind().equals(ElementKind.CLASS)) {
TypeMirror superClass = d1.getSuperclass();
if (!superClass.getKind().equals(TypeKind.NONE)) {
superClassDecl = (TypeElement) ((DeclaredType) superClass).asElement();
if (superClassDecl.equals(d2))
return true;
}
}
for (TypeMirror superIntf : d1.getInterfaces()) {
DeclaredType declaredSuperIntf = (DeclaredType) superIntf;
if (declaredSuperIntf.asElement().equals(d2)) {
return true;
}
if (isSubElement((TypeElement) declaredSuperIntf.asElement(), d2)) {
return true;
} else if (superClassDecl != null && isSubElement(superClassDecl, d2)) {
return true;
}
}
return false;
}
}