1 /* 2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.tools.internal.ws.processor.modeler.annotation; 27 28 import javax.annotation.processing.ProcessingEnvironment; 29 import javax.lang.model.element.ElementKind; 30 import javax.lang.model.element.ExecutableElement; 31 import javax.lang.model.element.TypeElement; 32 import javax.lang.model.element.VariableElement; 33 import javax.lang.model.type.DeclaredType; 34 import javax.lang.model.type.TypeKind; 35 import javax.lang.model.type.TypeMirror; 36 import javax.lang.model.util.ElementFilter; 37 import java.util.Collection; 38 import javax.lang.model.element.Element; 39 40 /** 41 * @author WS Development Team 42 */ 43 final class TypeModeler { 44 45 private static final String REMOTE = "java.rmi.Remote"; 46 private static final String REMOTE_EXCEPTION = "java.rmi.RemoteException"; 47 48 private TypeModeler() { 49 } 50 51 public static TypeElement getDeclaration(TypeMirror typeMirror) { 52 if (typeMirror != null && typeMirror.getKind().equals(TypeKind.DECLARED)) 53 return (TypeElement) ((DeclaredType) typeMirror).asElement(); 54 return null; 55 } 56 57 public static TypeElement getDeclaringClassMethod(TypeMirror theClass, String methodName, TypeMirror[] args) { 58 return getDeclaringClassMethod(getDeclaration(theClass), methodName, args); 59 } 60 61 public static TypeElement getDeclaringClassMethod(TypeElement theClass, String methodName, TypeMirror[] args) { 62 63 TypeElement retClass = null; 64 if (theClass.getKind().equals(ElementKind.CLASS)) { 65 TypeMirror superClass = theClass.getSuperclass(); 66 if (!superClass.getKind().equals(TypeKind.NONE)) 67 retClass = getDeclaringClassMethod(superClass, methodName, args); 68 } 69 if (retClass == null) { 70 for (TypeMirror interfaceType : theClass.getInterfaces()) { 71 retClass = getDeclaringClassMethod(interfaceType, methodName, args); 72 } 73 } 74 if (retClass == null) { 75 Collection<? extends ExecutableElement> methods = ElementFilter.methodsIn(theClass.getEnclosedElements()); 76 for (ExecutableElement method : methods) { 77 if (method.getSimpleName().toString().equals(methodName)) { 78 retClass = theClass; 79 break; 80 } 81 } 82 } 83 return retClass; 84 } 85 86 public static Collection<DeclaredType> collectInterfaces(TypeElement type) { 87 @SuppressWarnings({"unchecked"}) 88 Collection<DeclaredType> interfaces = (Collection<DeclaredType>) type.getInterfaces(); 89 for (TypeMirror interfaceType : type.getInterfaces()) { 90 interfaces.addAll(collectInterfaces(getDeclaration(interfaceType))); 91 } 92 return interfaces; 93 } 94 95 public static boolean isSubclass(String subTypeName, String superTypeName, ProcessingEnvironment env) { 96 return isSubclass(env.getElementUtils().getTypeElement(subTypeName), env.getElementUtils().getTypeElement(superTypeName), env); 97 } 98 99 public static boolean isSubclass(TypeElement subType, TypeElement superType, ProcessingEnvironment env) { 100 return !subType.equals(superType) && isSubElement(subType, superType); 101 } 102 103 public static TypeMirror getHolderValueType(TypeMirror type, TypeElement defHolder, ProcessingEnvironment env) { 104 TypeElement typeElement = getDeclaration(type); 105 if (typeElement == null) 106 return null; 107 108 if (isSubElement(typeElement, defHolder)) { 109 if (type.getKind().equals(TypeKind.DECLARED)) { 110 Collection<? extends TypeMirror> argTypes = ((DeclaredType) type).getTypeArguments(); 111 if (argTypes.size() == 1) { 112 return argTypes.iterator().next(); 113 } else if (argTypes.isEmpty()) { 114 VariableElement member = getValueMember(typeElement); 115 if (member != null) { 116 return member.asType(); 117 } 118 } 119 } 120 } 121 return null; 122 } 123 124 public static VariableElement getValueMember(TypeMirror classType) { 125 return getValueMember(getDeclaration(classType)); 126 } 127 128 public static VariableElement getValueMember(TypeElement type) { 129 VariableElement member = null; 130 for (VariableElement field : ElementFilter.fieldsIn(type.getEnclosedElements())) { 131 if ("value".equals(field.getSimpleName().toString())) { 132 member = field; 133 break; 134 } 135 } 136 if (member == null && type.getKind().equals(ElementKind.CLASS)) 137 member = getValueMember(type.getSuperclass()); 138 return member; 139 } 140 141 public static boolean isSubElement(TypeElement d1, TypeElement d2) { 142 if (d1.equals(d2)) 143 return true; 144 TypeElement superClassDecl = null; 145 if (d1.getKind().equals(ElementKind.CLASS)) { 146 TypeMirror superClass = d1.getSuperclass(); 147 if (!superClass.getKind().equals(TypeKind.NONE)) { 148 superClassDecl = (TypeElement) ((DeclaredType) superClass).asElement(); 149 if (superClassDecl.equals(d2)) 150 return true; 151 } 152 } 153 for (TypeMirror superIntf : d1.getInterfaces()) { 154 DeclaredType declaredSuperIntf = (DeclaredType) superIntf; 155 if (declaredSuperIntf.asElement().equals(d2)) { 156 return true; 157 } 158 if (isSubElement((TypeElement) declaredSuperIntf.asElement(), d2)) { 159 return true; 160 } else if (superClassDecl != null && isSubElement(superClassDecl, d2)) { 161 return true; 162 } 163 } 164 return false; 165 } 166 167 public static boolean isRemoteException(ProcessingEnvironment env, TypeMirror typeMirror) { 168 Element element = env.getTypeUtils().asElement(typeMirror); 169 if (element.getKind() == ElementKind.CLASS) { 170 TypeElement te = (TypeElement) element; 171 TypeKind tk = typeMirror.getKind(); 172 while (tk != TypeKind.NONE && !te.getQualifiedName().contentEquals(REMOTE_EXCEPTION)) { 173 TypeMirror superType = te.getSuperclass(); 174 te = (TypeElement) env.getTypeUtils().asElement(superType); 175 tk = superType.getKind(); 176 } 177 return tk != TypeKind.NONE; 178 } 179 return false; 180 } 181 182 public static boolean isRemote(/*@NotNull*/ TypeElement typeElement) { 183 for (TypeMirror superType : typeElement.getInterfaces()) { 184 TypeElement name = (TypeElement) ((DeclaredType) superType).asElement(); 185 if (name.getQualifiedName().contentEquals(REMOTE)) { 186 return true; 187 } 188 isRemote(name); 189 } 190 return false; 191 } 192 }