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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * 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).
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package jdk.javadoc.internal.doclets.formats.html;

import java.util.Arrays;
import java.util.List;
import java.util.SortedSet;
import java.util.TreeSet;

import javax.lang.model.element.Element;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.TypeMirror;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlConstants;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTag;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;
import jdk.javadoc.internal.doclets.formats.html.markup.StringContent;
import jdk.javadoc.internal.doclets.toolkit.Content;
import jdk.javadoc.internal.doclets.toolkit.MemberSummaryWriter;
import jdk.javadoc.internal.doclets.toolkit.MethodWriter;
import jdk.javadoc.internal.doclets.toolkit.util.ImplementedMethods;
import jdk.javadoc.internal.doclets.toolkit.util.Utils;

Writes method documentation in HTML format.
 
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.
Author:
Robert Field, Atul M Dambalkar, Jamie Ho (rewrite), Bhavesh Patel (Modified)/**
 * Writes method documentation in HTML format.
 *
 *  <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 Robert Field
 * @author Atul M Dambalkar
 * @author Jamie Ho (rewrite)
 * @author Bhavesh Patel (Modified)
 */
public class MethodWriterImpl extends AbstractExecutableMemberWriter
        implements MethodWriter, MemberSummaryWriter {

    
Construct a new MethodWriterImpl.
Params:
writer – the writer for the class that the methods belong to.
typeElement – the class being documented./**
     * Construct a new MethodWriterImpl.
     *
     * @param writer the writer for the class that the methods belong to.
     * @param typeElement the class being documented.
     */
    public MethodWriterImpl(SubWriterHolderWriter writer, TypeElement typeElement) {
        super(writer, typeElement);
    }

    
Construct a new MethodWriterImpl.
Params:
writer – The writer for the class that the methods belong to./**
     * Construct a new MethodWriterImpl.
     *
     * @param writer The writer for the class that the methods belong to.
     */
    public MethodWriterImpl(SubWriterHolderWriter writer) {
        super(writer);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public Content getMemberSummaryHeader(TypeElement typeElement, Content memberSummaryTree) {
        memberSummaryTree.addContent(HtmlConstants.START_OF_METHOD_SUMMARY);
        Content memberTree = writer.getMemberTreeHeader();
        writer.addSummaryHeader(this, typeElement, memberTree);
        return memberTree;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public void addMemberTree(Content memberSummaryTree, Content memberTree) {
        writer.addMemberTree(memberSummaryTree, memberTree);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public Content getMethodDetailsTreeHeader(TypeElement typeElement, Content memberDetailsTree) {
        memberDetailsTree.addContent(HtmlConstants.START_OF_METHOD_DETAILS);
        Content methodDetailsTree = writer.getMemberTreeHeader();
        methodDetailsTree.addContent(writer.getMarkerAnchor(
                SectionName.METHOD_DETAIL));
        Content heading = HtmlTree.HEADING(HtmlConstants.DETAILS_HEADING,
                contents.methodDetailLabel);
        methodDetailsTree.addContent(heading);
        return methodDetailsTree;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public Content getMethodDocTreeHeader(ExecutableElement method, Content methodDetailsTree) {
        String erasureAnchor;
        if ((erasureAnchor = getErasureAnchor(method)) != null) {
            methodDetailsTree.addContent(writer.getMarkerAnchor((erasureAnchor)));
        }
        methodDetailsTree.addContent(
                writer.getMarkerAnchor(writer.getAnchor(method)));
        Content methodDocTree = writer.getMemberTreeHeader();
        Content heading = new HtmlTree(HtmlConstants.MEMBER_HEADING);
        heading.addContent(name(method));
        methodDocTree.addContent(heading);
        return methodDocTree;
    }

    
Get the signature for the given method.
Params:
method – the method being documented.
Returns:
a content object for the signature/**
     * Get the signature for the given method.
     *
     * @param method the method being documented.
     * @return a content object for the signature
     */
    @Override
    public Content getSignature(ExecutableElement method) {
        Content pre = new HtmlTree(HtmlTag.PRE);
        writer.addAnnotationInfo(method, pre);
        int annotationLength = pre.charCount();
        addModifiers(method, pre);
        addTypeParameters(method, pre);
        addReturnType(method, pre);
        if (configuration.linksource) {
            Content methodName = new StringContent(name(method));
            writer.addSrcLink(method, methodName, pre);
        } else {
            addName(name(method), pre);
        }
        int indent = pre.charCount() - annotationLength;
        addParameters(method, pre, indent);
        addExceptions(method, pre, indent);
        return pre;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void addDeprecated(ExecutableElement method, Content methodDocTree) {
        addDeprecatedInfo(method, methodDocTree);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void addComments(TypeMirror holderType, ExecutableElement method, Content methodDocTree) {
        TypeElement holder = utils.asTypeElement(holderType);
        if (!utils.getFullBody(method).isEmpty()) {
            if (holder.equals(typeElement) ||
                    !(utils.isPublic(holder) ||
                    utils.isLinkable(holder))) {
                writer.addInlineComment(method, methodDocTree);
            } else {
                Content link =
                        writer.getDocLink(LinkInfoImpl.Kind.EXECUTABLE_ELEMENT_COPY,
                        holder, method,
                        utils.isIncluded(holder)
                                ? utils.getSimpleName(holder)
                                : utils.getFullyQualifiedName(holder),
                            false);
                Content codelLink = HtmlTree.CODE(link);
                Content descfrmLabel = HtmlTree.SPAN(HtmlStyle.descfrmTypeLabel,
                        utils.isClass(holder)
                                ? contents.descfrmClassLabel
                                : contents.descfrmInterfaceLabel);
                descfrmLabel.addContent(Contents.SPACE);
                descfrmLabel.addContent(codelLink);
                methodDocTree.addContent(HtmlTree.DIV(HtmlStyle.block, descfrmLabel));
                writer.addInlineComment(method, methodDocTree);
            }
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void addTags(ExecutableElement method, Content methodDocTree) {
        writer.addTagsInfo(method, methodDocTree);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public Content getMethodDetails(Content methodDetailsTree) {
        if (configuration.allowTag(HtmlTag.SECTION)) {
            HtmlTree htmlTree = HtmlTree.SECTION(getMemberTree(methodDetailsTree));
            return htmlTree;
        }
        return getMemberTree(methodDetailsTree);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public Content getMethodDoc(Content methodDocTree,
            boolean isLastContent) {
        return getMemberTree(methodDocTree, isLastContent);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void addSummaryLabel(Content memberTree) {
        Content label = HtmlTree.HEADING(HtmlConstants.SUMMARY_HEADING,
                contents.methodSummary);
        memberTree.addContent(label);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public String getTableSummary() {
        return resources.getText("doclet.Member_Table_Summary",
                resources.getText("doclet.Method_Summary"),
                resources.getText("doclet.methods"));
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public Content getCaption() {
        return contents.methods;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public List<String> getSummaryTableHeader(Element member) {
        List<String> header = Arrays.asList(writer.getModifierTypeHeader(),
                resources.getText("doclet.Method"), resources.getText("doclet.Description"));
        return header;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void addSummaryAnchor(TypeElement typeElement, Content memberTree) {
        memberTree.addContent(writer.getMarkerAnchor(
                SectionName.METHOD_SUMMARY));
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void addInheritedSummaryAnchor(TypeElement typeElement, Content inheritedTree) {
        inheritedTree.addContent(writer.getMarkerAnchor(
                SectionName.METHODS_INHERITANCE, configuration.getClassName(typeElement)));
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void addInheritedSummaryLabel(TypeElement typeElement, Content inheritedTree) {
        Content classLink = writer.getPreQualifiedClassLink(
                LinkInfoImpl.Kind.MEMBER, typeElement, false);
        Content label = new StringContent(utils.isClass(typeElement)
                ? configuration.getText("doclet.Methods_Inherited_From_Class")
                : configuration.getText("doclet.Methods_Inherited_From_Interface"));
        Content labelHeading = HtmlTree.HEADING(HtmlConstants.INHERITED_SUMMARY_HEADING,
                label);
        labelHeading.addContent(Contents.SPACE);
        labelHeading.addContent(classLink);
        inheritedTree.addContent(labelHeading);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected void addSummaryType(Element member, Content tdSummaryType) {
        ExecutableElement meth = (ExecutableElement)member;
        addModifierAndType(meth, utils.getReturnType(meth), tdSummaryType);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    protected static void addOverridden(HtmlDocletWriter writer,
            TypeMirror overriddenType, ExecutableElement method, Content dl) {
        if (writer.configuration.nocomment) {
            return;
        }
        Utils utils = writer.utils;
        Contents contents = writer.contents;
        TypeElement holder = utils.getEnclosingTypeElement(method);
        if (!(utils.isPublic(holder) ||
            utils.isLinkable(holder))) {
            //This is an implementation detail that should not be documented.
            return;
        }
        if (utils.isIncluded(holder) && ! utils.isIncluded(method)) {
            //The class is included but the method is not.  That means that it
            //is not visible so don't document this.
            return;
        }
        Content label = contents.overridesLabel;
        LinkInfoImpl.Kind context = LinkInfoImpl.Kind.METHOD_OVERRIDES;

        if (method != null) {
            if (utils.isAbstract(holder) && utils.isAbstract(method)){
                //Abstract method is implemented from abstract class,
                //not overridden
                label = contents.specifiedByLabel;
                context = LinkInfoImpl.Kind.METHOD_SPECIFIED_BY;
            }
            Content dt = HtmlTree.DT(HtmlTree.SPAN(HtmlStyle.overrideSpecifyLabel, label));
            dl.addContent(dt);
            Content overriddenTypeLink =
                    writer.getLink(new LinkInfoImpl(writer.configuration, context, overriddenType));
            Content codeOverridenTypeLink = HtmlTree.CODE(overriddenTypeLink);
            Content methlink = writer.getLink(
                    new LinkInfoImpl(writer.configuration, LinkInfoImpl.Kind.MEMBER,
                    holder)
                    .where(writer.getName(writer.getAnchor(method))).label(method.getSimpleName()));
            Content codeMethLink = HtmlTree.CODE(methlink);
            Content dd = HtmlTree.DD(codeMethLink);
            dd.addContent(Contents.SPACE);
            dd.addContent(writer.contents.inClass);
            dd.addContent(Contents.SPACE);
            dd.addContent(codeOverridenTypeLink);
            dl.addContent(dd);
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    protected static void addImplementsInfo(HtmlDocletWriter writer,
            ExecutableElement method, Content dl) {
        Utils utils = writer.utils;
        if (utils.isStatic(method) || writer.configuration.nocomment) {
            return;
        }
        Contents contents = writer.contents;
        ImplementedMethods implementedMethodsFinder =
                new ImplementedMethods(method, writer.configuration);
        SortedSet<ExecutableElement> implementedMethods =
                new TreeSet<>(utils.makeOverrideUseComparator());
        implementedMethods.addAll(implementedMethodsFinder.build());
        for (ExecutableElement implementedMeth : implementedMethods) {
            TypeMirror intfac = implementedMethodsFinder.getMethodHolder(implementedMeth);
            intfac = utils.getDeclaredType(utils.getEnclosingTypeElement(method), intfac);
            Content intfaclink = writer.getLink(new LinkInfoImpl(
                    writer.configuration, LinkInfoImpl.Kind.METHOD_SPECIFIED_BY, intfac));
            Content codeIntfacLink = HtmlTree.CODE(intfaclink);
            Content dt = HtmlTree.DT(HtmlTree.SPAN(HtmlStyle.overrideSpecifyLabel, contents.specifiedByLabel));
            dl.addContent(dt);
            Content methlink = writer.getDocLink(
                    LinkInfoImpl.Kind.MEMBER, implementedMeth,
                    implementedMeth.getSimpleName(), false);
            Content codeMethLink = HtmlTree.CODE(methlink);
            Content dd = HtmlTree.DD(codeMethLink);
            dd.addContent(Contents.SPACE);
            dd.addContent(contents.inInterface);
            dd.addContent(Contents.SPACE);
            dd.addContent(codeIntfacLink);
            dl.addContent(dd);
        }
    }

    
Add the return type.
Params:
method – the method being documented.
htmltree – the content tree to which the return type will be added/**
     * Add the return type.
     *
     * @param method the method being documented.
     * @param htmltree the content tree to which the return type will be added
     */
    protected void addReturnType(ExecutableElement method, Content htmltree) {
        TypeMirror type = utils.getReturnType(method);
        if (type != null) {
            Content linkContent = writer.getLink(
                    new LinkInfoImpl(configuration, LinkInfoImpl.Kind.RETURN_TYPE, type));
            htmltree.addContent(linkContent);
            htmltree.addContent(Contents.SPACE);
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected Content getNavSummaryLink(TypeElement typeElement, boolean link) {
        if (link) {
            if (typeElement == null) {
                return writer.getHyperLink(
                        SectionName.METHOD_SUMMARY,
                        contents.navMethod);
            } else {
                return writer.getHyperLink(
                        SectionName.METHODS_INHERITANCE,
                        configuration.getClassName(typeElement), contents.navMethod);
            }
        } else {
            return contents.navMethod;
        }
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    protected void addNavDetailLink(boolean link, Content liNav) {
        if (link) {
            liNav.addContent(writer.getHyperLink(
                    SectionName.METHOD_DETAIL, contents.navMethod));
        } else {
            liNav.addContent(contents.navMethod);
        }
    }
}