| /* |
| * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.javadoc.internal.doclets.toolkit.util; |
| |
| import java.util.*; |
| |
| import javax.lang.model.element.ExecutableElement; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.type.TypeMirror; |
| |
| import jdk.javadoc.internal.doclets.toolkit.Configuration; |
| |
| /** |
| * For a given class method, build an array of interface methods which it |
| * implements. |
| * |
| * <p><b>This is NOT part of any supported API. |
| * If you write code that depends on this, you do so at your own risk. |
| * This code and its internal interfaces are subject to change or |
| * deletion without notice.</b> |
| * |
| * @author Atul M Dambalkar |
| */ |
| public class ImplementedMethods { |
| |
| private final Map<ExecutableElement, TypeMirror> interfaces = new HashMap<>(); |
| private final List<ExecutableElement> methlist = new ArrayList<>(); |
| private final Utils utils; |
| private final TypeElement typeElement; |
| private final ExecutableElement method; |
| |
| public ImplementedMethods(ExecutableElement method, Configuration configuration) { |
| this.method = method; |
| this.utils = configuration.utils; |
| typeElement = utils.getEnclosingTypeElement(method); |
| } |
| |
| /** |
| * Return the array of interface methods which the method passed in the |
| * constructor is implementing. The search/build order is as follows: |
| * <pre> |
| * 1. Search in all the immediate interfaces which this method's class is |
| * implementing. Do it recursively for the superinterfaces as well. |
| * 2. Traverse all the superclasses and search recursively in the |
| * interfaces which those superclasses implement. |
| *</pre> |
| * |
| * @return SortedSet<ExecutableElement> of implemented methods. |
| */ |
| public List<ExecutableElement> build() { |
| buildImplementedMethodList(); |
| return methlist; |
| } |
| |
| public TypeMirror getMethodHolder(ExecutableElement ee) { |
| return interfaces.get(ee); |
| } |
| |
| /** |
| * Search for the method in the array of interfaces. If found check if it is |
| * overridden by any other subinterface method which this class |
| * implements. If it is not overidden, add it in the method list. |
| * Do this recursively for all the extended interfaces for each interface |
| * from the array passed. |
| */ |
| private void buildImplementedMethodList() { |
| Set<TypeMirror> intfacs = utils.getAllInterfaces(typeElement); |
| for (TypeMirror interfaceType : intfacs) { |
| ExecutableElement found = utils.findMethod(utils.asTypeElement(interfaceType), method); |
| if (found != null) { |
| removeOverriddenMethod(found); |
| if (!overridingMethodFound(found)) { |
| methlist.add(found); |
| interfaces.put(found, interfaceType); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Search in the method list and check if it contains a method which |
| * is overridden by the method as parameter. If found, remove the |
| * overridden method from the method list. |
| * |
| * @param method Is this method overriding a method in the method list. |
| */ |
| private void removeOverriddenMethod(ExecutableElement method) { |
| TypeElement overriddenClass = utils.overriddenClass(method); |
| if (overriddenClass != null) { |
| for (int i = 0; i < methlist.size(); i++) { |
| TypeElement te = utils.getEnclosingTypeElement(methlist.get(i)); |
| if (te == overriddenClass || utils.isSubclassOf(overriddenClass, te)) { |
| methlist.remove(i); // remove overridden method |
| return; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Search in the already found methods' list and check if it contains |
| * a method which is overriding the method parameter or is the method |
| * parameter itself. |
| * |
| * @param method MethodDoc Method to be searched in the Method List for |
| * an overriding method. |
| */ |
| private boolean overridingMethodFound(ExecutableElement method) { |
| TypeElement containingClass = utils.getEnclosingTypeElement(method); |
| for (ExecutableElement listmethod : methlist) { |
| if (containingClass == utils.getEnclosingTypeElement(listmethod)) { |
| // it's the same method. |
| return true; |
| } |
| TypeElement te = utils.overriddenClass(listmethod); |
| if (te == null) { |
| continue; |
| } |
| if (te == containingClass || utils.isSubclassOf(te, containingClass)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |