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package jdk.javadoc.internal.doclets.toolkit.builders;

import java.util.*;

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.toolkit.BaseConfiguration;
import jdk.javadoc.internal.doclets.toolkit.Content;
import jdk.javadoc.internal.doclets.toolkit.DocletException;
import jdk.javadoc.internal.doclets.toolkit.MethodWriter;
import jdk.javadoc.internal.doclets.toolkit.util.DocFinder;

import static jdk.javadoc.internal.doclets.toolkit.util.VisibleMemberTable.Kind.*;

Builds documentation for a method.
 
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:
Jamie Ho, Bhavesh Patel (Modified)/**
 * Builds documentation for a method.
 *
 *  <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 Jamie Ho
 * @author Bhavesh Patel (Modified)
 */
public class MethodBuilder extends AbstractMemberBuilder {

    
The index of the current field that is being documented at this point
in time.
/**
     * The index of the current field that is being documented at this point
     * in time.
     */
    private ExecutableElement currentMethod;

    
The writer to output the method documentation.
/**
     * The writer to output the method documentation.
     */
    private final MethodWriter writer;

    
The methods being documented.
/**
     * The methods being documented.
     */
    private final List<? extends Element> methods;


    
Construct a new MethodBuilder.
Params:
context –       the build context.
typeElement – the class whoses members are being documented.
writer – the doclet specific writer./**
     * Construct a new MethodBuilder.
     *
     * @param context       the build context.
     * @param typeElement the class whoses members are being documented.
     * @param writer the doclet specific writer.
     */
    private MethodBuilder(Context context,
            TypeElement typeElement,
            MethodWriter writer) {
        super(context, typeElement);
        this.writer = writer;
        methods = getVisibleMembers(METHODS);
    }

    
Construct a new MethodBuilder.
Params:
context –       the build context.
typeElement – the class whoses members are being documented.
writer – the doclet specific writer.
Returns:
an instance of a MethodBuilder./**
     * Construct a new MethodBuilder.
     *
     * @param context       the build context.
     * @param typeElement the class whoses members are being documented.
     * @param writer the doclet specific writer.
     *
     * @return an instance of a MethodBuilder.
     */
    public static MethodBuilder getInstance(Context context,
            TypeElement typeElement, MethodWriter writer) {
        return new MethodBuilder(context, typeElement, writer);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public boolean hasMembersToDocument() {
        return !methods.isEmpty();
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    @Override
    public void build(Content contentTree) throws DocletException {
        buildMethodDoc(contentTree);
    }

    
Build the method documentation.
Params:
memberDetailsTree – the content tree to which the documentation will be added
Throws:
DocletException – if there is a problem while building the documentation/**
     * Build the method documentation.
     *
     * @param memberDetailsTree the content tree to which the documentation will be added
     * @throws DocletException if there is a problem while building the documentation
     */
    protected void buildMethodDoc(Content memberDetailsTree) throws DocletException {
        if (writer == null) {
            return;
        }
        if (hasMembersToDocument()) {
            Content methodDetailsTree = writer.getMethodDetailsTreeHeader(typeElement,
                    memberDetailsTree);

            Element lastElement = methods.get(methods.size() - 1);
            for (Element method : methods) {
                currentMethod = (ExecutableElement)method;
                Content methodDocTree = writer.getMethodDocTreeHeader(currentMethod, methodDetailsTree);

                buildSignature(methodDocTree);
                buildDeprecationInfo(methodDocTree);
                buildMethodComments(methodDocTree);
                buildTagInfo(methodDocTree);

                methodDetailsTree.addContent(writer.getMethodDoc(
                        methodDocTree, currentMethod == lastElement));
            }
            memberDetailsTree.addContent(writer.getMethodDetails(methodDetailsTree));
        }
    }

    
Build the signature.
Params:
methodDocTree – the content tree to which the documentation will be added/**
     * Build the signature.
     *
     * @param methodDocTree the content tree to which the documentation will be added
     */
    protected void buildSignature(Content methodDocTree) {
        methodDocTree.addContent(writer.getSignature(currentMethod));
    }

    
Build the deprecation information.
Params:
methodDocTree – the content tree to which the documentation will be added/**
     * Build the deprecation information.
     *
     * @param methodDocTree the content tree to which the documentation will be added
     */
    protected void buildDeprecationInfo(Content methodDocTree) {
        writer.addDeprecated(currentMethod, methodDocTree);
    }

    
Build the comments for the method. Do nothing if BaseConfiguration.nocomment is set to true. 
Params:
methodDocTree – the content tree to which the documentation will be added/**
     * Build the comments for the method.  Do nothing if
     * {@link BaseConfiguration#nocomment} is set to true.
     *
     * @param methodDocTree the content tree to which the documentation will be added
     */
    protected void buildMethodComments(Content methodDocTree) {
        if (!configuration.nocomment) {
            ExecutableElement method = currentMethod;
            if (utils.getFullBody(currentMethod).isEmpty()) {
                DocFinder.Output docs = DocFinder.search(configuration,
                        new DocFinder.Input(utils, currentMethod));
                if (docs.inlineTags != null && !docs.inlineTags.isEmpty())
                        method = (ExecutableElement)docs.holder;
            }
            TypeMirror containingType = method.getEnclosingElement().asType();
            writer.addComments(containingType, method, methodDocTree);
        }
    }

    
Build the tag information.
Params:
methodDocTree – the content tree to which the documentation will be added/**
     * Build the tag information.
     *
     * @param methodDocTree the content tree to which the documentation will be added
     */
    protected void buildTagInfo(Content methodDocTree) {
        writer.addTags(currentMethod, methodDocTree);
    }

    
Return the method writer for this builder.
Returns:
the method writer for this builder./**
     * Return the method writer for this builder.
     *
     * @return the method writer for this builder.
     */
    public MethodWriter getWriter() {
        return writer;
    }
}