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 * Copyright (c) 1997, 2020, 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.
 *
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package jdk.javadoc.internal.doclets.formats.html;

import java.util.ArrayList;
import java.util.List;

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

import com.sun.source.doctree.DocTree;

import jdk.javadoc.internal.doclets.formats.html.markup.ContentBuilder;
import jdk.javadoc.internal.doclets.formats.html.markup.Entity;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;
import jdk.javadoc.internal.doclets.formats.html.markup.TagName;
import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;
import jdk.javadoc.internal.doclets.formats.html.markup.Links;
import jdk.javadoc.internal.doclets.formats.html.markup.Table;
import jdk.javadoc.internal.doclets.formats.html.markup.TableHeader;
import jdk.javadoc.internal.doclets.toolkit.Content;
import jdk.javadoc.internal.doclets.toolkit.MemberSummaryWriter;
import jdk.javadoc.internal.doclets.toolkit.MemberWriter;
import jdk.javadoc.internal.doclets.toolkit.Resources;
import jdk.javadoc.internal.doclets.toolkit.taglets.DeprecatedTaglet;
import jdk.javadoc.internal.doclets.toolkit.util.Utils;

The base class for member writers.
 
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.
/**
 * The base class for member writers.
 *
 *  <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>
 */
public abstract class AbstractMemberWriter implements MemberSummaryWriter, MemberWriter {

    protected final HtmlConfiguration configuration;
    protected final HtmlOptions options;
    protected final Utils utils;
    protected final SubWriterHolderWriter writer;
    protected final Contents contents;
    protected final Resources resources;
    protected final Links links;

    protected final TypeElement typeElement;

    public AbstractMemberWriter(SubWriterHolderWriter writer, TypeElement typeElement) {
        this.configuration = writer.configuration;
        this.options = configuration.getOptions();
        this.writer = writer;
        this.typeElement = typeElement;
        this.utils = configuration.utils;
        this.contents = configuration.getContents();
        this.resources = configuration.docResources;
        this.links = writer.links;
    }

    public AbstractMemberWriter(SubWriterHolderWriter writer) {
        this(writer, null);
    }

    /* ----- abstracts ----- */

    
Adds the summary label for the member.
Params:
memberTree – the content tree to which the label will be added/**
     * Adds the summary label for the member.
     *
     * @param memberTree the content tree to which the label will be added
     */
    public abstract void addSummaryLabel(Content memberTree);

    
Returns the summary table header for the member.
Params:
member – the member to be documented
Returns:
the summary table header/**
     * Returns the summary table header for the member.
     *
     * @param member the member to be documented
     *
     * @return the summary table header
     */
    public abstract TableHeader getSummaryTableHeader(Element member);

    private Table summaryTable;

    private Table getSummaryTable() {
        if (summaryTable == null) {
            summaryTable = createSummaryTable();
        }
        return summaryTable;
    }

    
Creates the summary table for this element. The table should be created and initialized if needed, and configured so that it is ready to add content with Table.addRow(Content[]) and similar methods. 
Returns:
the summary table/**
     * Creates the summary table for this element.
     * The table should be created and initialized if needed, and configured
     * so that it is ready to add content with {@link Table#addRow(Content[])}
     * and similar methods.
     *
     * @return the summary table
     */
    protected abstract Table createSummaryTable();

    
Adds inherited summary label for the member.
Params:
typeElement –   the type element to which to link to
inheritedTree – the content tree to which the inherited summary label will be added/**
     * Adds inherited summary label for the member.
     *
     * @param typeElement   the type element to which to link to
     * @param inheritedTree the content tree to which the inherited summary label will be added
     */
    public abstract void addInheritedSummaryLabel(TypeElement typeElement, Content inheritedTree);

    
Adds the summary type for the member.
Params:
member –        the member to be documented
tdSummaryType – the content tree to which the type will be added/**
     * Adds the summary type for the member.
     *
     * @param member        the member to be documented
     * @param tdSummaryType the content tree to which the type will be added
     */
    protected abstract void addSummaryType(Element member, Content tdSummaryType);

    
Adds the summary link for the member.
Params:
typeElement – the type element to be documented
member –      the member to be documented
tdSummary –   the content tree to which the link will be added/**
     * Adds the summary link for the member.
     *
     * @param typeElement the type element to be documented
     * @param member      the member to be documented
     * @param tdSummary   the content tree to which the link will be added
     */
    protected void addSummaryLink(TypeElement typeElement, Element member, Content tdSummary) {
        addSummaryLink(LinkInfoImpl.Kind.MEMBER, typeElement, member, tdSummary);
    }

    
Adds the summary link for the member.
Params:
context –     the id of the context where the link will be printed
typeElement – the type element to be documented
member –      the member to be documented
tdSummary –   the content tree to which the summary link will be added/**
     * Adds the summary link for the member.
     *
     * @param context     the id of the context where the link will be printed
     * @param typeElement the type element to be documented
     * @param member      the member to be documented
     * @param tdSummary   the content tree to which the summary link will be added
     */
    protected abstract void addSummaryLink(LinkInfoImpl.Kind context,
            TypeElement typeElement, Element member, Content tdSummary);

    
Adds the inherited summary link for the member.
Params:
typeElement – the type element to be documented
member –      the member to be documented
linksTree –   the content tree to which the inherited summary link will be added/**
     * Adds the inherited summary link for the member.
     *
     * @param typeElement the type element to be documented
     * @param member      the member to be documented
     * @param linksTree   the content tree to which the inherited summary link will be added
     */
    protected abstract void addInheritedSummaryLink(TypeElement typeElement,
            Element member, Content linksTree);

    
Returns the deprecated link.
Params:
member – the member being linked to
Returns:
a content tree representing the link/**
     * Returns the deprecated link.
     *
     * @param member the member being linked to
     *
     * @return a content tree representing the link
     */
    protected abstract Content getDeprecatedLink(Element member);

    
Adds the modifier and type for the member in the member summary.
Params:
member –        the member to add the type for
type –          the type to add
tdSummaryType – the content tree to which the modified and type will be added/**
     * Adds the modifier and type for the member in the member summary.
     *
     * @param member        the member to add the type for
     * @param type          the type to add
     * @param tdSummaryType the content tree to which the modified and type will be added
     */
    protected void addModifierAndType(Element member, TypeMirror type,
            Content tdSummaryType) {
        HtmlTree code = new HtmlTree(TagName.CODE);
        addModifier(member, code);
        if (type == null) {
            code.add(utils.isClass(member) ? "class" : "interface");
            code.add(Entity.NO_BREAK_SPACE);
        } else {
            List<? extends TypeParameterElement> list = utils.isExecutableElement(member)
                    ? ((ExecutableElement)member).getTypeParameters()
                    : null;
            if (list != null && !list.isEmpty()) {
                Content typeParameters = ((AbstractExecutableMemberWriter) this)
                        .getTypeParameters((ExecutableElement)member);
                    code.add(typeParameters);
                //Code to avoid ugly wrapping in member summary table.
                if (typeParameters.charCount() > 10) {
                    code.add(new HtmlTree(TagName.BR));
                } else {
                    code.add(Entity.NO_BREAK_SPACE);
                }
            }
            code.add(
                    writer.getLink(new LinkInfoImpl(configuration,
                            LinkInfoImpl.Kind.SUMMARY_RETURN_TYPE, type)));
        }
        tdSummaryType.add(code);
    }

    
Adds the modifier for the member.
Params:
member – the member to add the type for
code –   the content tree to which the modifier will be added/**
     * Adds the modifier for the member.
     *
     * @param member the member to add the type for
     * @param code   the content tree to which the modifier will be added
     */
    private void addModifier(Element member, Content code) {
        if (utils.isProtected(member)) {
            code.add("protected ");
        } else if (utils.isPrivate(member)) {
            code.add("private ");
        } else if (!utils.isPublic(member)) { // Package private
            code.add(resources.getText("doclet.Package_private"));
            code.add(" ");
        }
        boolean isAnnotatedTypeElement = utils.isAnnotationType(member.getEnclosingElement());
        if (!isAnnotatedTypeElement && utils.isMethod(member)) {
            if (!utils.isInterface(member.getEnclosingElement()) && utils.isAbstract(member)) {
                code.add("abstract ");
            }
            if (utils.isDefault(member)) {
                code.add("default ");
            }
        }
        if (utils.isStatic(member)) {
            code.add("static ");
        }
    }

    
Adds the deprecated information for the given member.
Params:
member –      the member being documented.
contentTree – the content tree to which the deprecated information will be added./**
     * Adds the deprecated information for the given member.
     *
     * @param member      the member being documented.
     * @param contentTree the content tree to which the deprecated information will be added.
     */
    protected void addDeprecatedInfo(Element member, Content contentTree) {
        Content output = (new DeprecatedTaglet()).getAllBlockTagOutput(member,
            writer.getTagletWriterInstance(false));
        if (!output.isEmpty()) {
            contentTree.add(HtmlTree.DIV(HtmlStyle.deprecationBlock, output));
        }
    }

    
Adds the comment for the given member.
Params:
member –   the member being documented.
htmlTree – the content tree to which the comment will be added./**
     * Adds the comment for the given member.
     *
     * @param member   the member being documented.
     * @param htmlTree the content tree to which the comment will be added.
     */
    protected void addComment(Element member, Content htmlTree) {
        if (!utils.getFullBody(member).isEmpty()) {
            writer.addInlineComment(member, htmlTree);
        }
    }

    protected String name(Element member) {
        return utils.getSimpleName(member);
    }

    
Returns true if the given element is inherited by the class that is being documented. 
Params:
ped – the element being checked
Returns:
true if inherited/**
     * Returns {@code true} if the given element is inherited
     * by the class that is being documented.
     *
     * @param ped the element being checked
     *
     * @return {@code true} if inherited
     */
    protected boolean isInherited(Element ped){
        return (!utils.isPrivate(ped) &&
                (!utils.isPackagePrivate(ped) ||
                    ped.getEnclosingElement().equals(ped.getEnclosingElement())));
    }

    
Adds use information to the documentation tree.
Params:
members –     list of program elements for which the use information will be added
heading –     the section heading
contentTree – the content tree to which the use information will be added/**
     * Adds use information to the documentation tree.
     *
     * @param members     list of program elements for which the use information will be added
     * @param heading     the section heading
     * @param contentTree the content tree to which the use information will be added
     */
    protected void addUseInfo(List<? extends Element> members, Content heading, Content contentTree) {
        if (members == null || members.isEmpty()) {
            return;
        }
        boolean printedUseTableHeader = false;
        Table useTable = new Table(HtmlStyle.summaryTable)
                .setCaption(heading)
                .setColumnStyles(HtmlStyle.colFirst, HtmlStyle.colSecond, HtmlStyle.colLast);
        for (Element element : members) {
            TypeElement te = (typeElement == null)
                    ? utils.getEnclosingTypeElement(element)
                    : typeElement;
            if (!printedUseTableHeader) {
                useTable.setHeader(getSummaryTableHeader(element));
                printedUseTableHeader = true;
            }
            Content summaryType = new ContentBuilder();
            addSummaryType(element, summaryType);
            Content typeContent = new ContentBuilder();
            if (te != null
                    && !utils.isConstructor(element)
                    && !utils.isClass(element)
                    && !utils.isInterface(element)
                    && !utils.isAnnotationType(element)) {
                HtmlTree name = new HtmlTree(TagName.SPAN);
                name.setStyle(HtmlStyle.typeNameLabel);
                name.add(name(te) + ".");
                typeContent.add(name);
            }
            addSummaryLink(utils.isClass(element) || utils.isInterface(element)
                    ? LinkInfoImpl.Kind.CLASS_USE
                    : LinkInfoImpl.Kind.MEMBER,
                    te, element, typeContent);
            Content desc = new ContentBuilder();
            writer.addSummaryLinkComment(this, element, desc);
            useTable.addRow(summaryType, typeContent, desc);
        }
        contentTree.add(useTable);
    }

    protected void serialWarning(Element e, String key, String a1, String a2) {
        if (options.serialWarn()) {
            configuration.messages.warning(e, key, a1, a2);
        }
    }

    @Override
    public void addMemberSummary(TypeElement tElement, Element member,
            List<? extends DocTree> firstSentenceTrees) {
        if (tElement != typeElement) {
            throw new IllegalStateException();
        }
        Table table = getSummaryTable();
        List<Content> rowContents = new ArrayList<>();
        Content summaryType = new ContentBuilder();
        addSummaryType(member, summaryType);
        if (!summaryType.isEmpty())
            rowContents.add(summaryType);
        Content summaryLink = new ContentBuilder();
        addSummaryLink(tElement, member, summaryLink);
        rowContents.add(summaryLink);
        Content desc = new ContentBuilder();
        writer.addSummaryLinkComment(this, member, firstSentenceTrees, desc);
        rowContents.add(desc);
        table.addRow(member, rowContents);
    }

    @Override
    public void addInheritedMemberSummary(TypeElement tElement,
            Element nestedClass, boolean isFirst, boolean isLast,
            Content linksTree) {
        writer.addInheritedMemberSummary(this, tElement, nestedClass, isFirst, linksTree);
    }

    @Override
    public Content getInheritedSummaryHeader(TypeElement tElement) {
        Content inheritedTree = writer.getMemberInheritedTree();
        writer.addInheritedSummaryHeader(this, tElement, inheritedTree);
        return inheritedTree;
    }

    @Override
    public Content getInheritedSummaryLinksTree() {
        return new HtmlTree(TagName.CODE);
    }

    @Override
    public Content getSummaryTableTree(TypeElement tElement) {
        if (tElement != typeElement) {
            throw new IllegalStateException();
        }
        Table table = getSummaryTable();
        if (table.needsScript()) {
            writer.getMainBodyScript().append(table.getScript());
        }
        return table;
    }

    @Override
    public Content getMemberTree(Content memberTree) {
        return writer.getMemberTree(memberTree);
    }

    @Override
    public Content getMemberList() {
        return writer.getMemberList();
    }

    @Override
    public Content getMemberListItem(Content memberTree) {
        return writer.getMemberListItem(memberTree);
    }

}