langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/PackageUseWriter.java
changeset 35426 374342e56a56
parent 29957 7740f9657f56
child 37943 2efb75c09230
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/PackageUseWriter.java	Sat Nov 28 18:52:17 2015 -0800
@@ -0,0 +1,339 @@
+/*
+ * Copyright (c) 1998, 2016, 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.formats.html;
+
+import java.io.*;
+import java.util.*;
+
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+
+import jdk.javadoc.internal.doclets.formats.html.markup.ContentBuilder;
+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.util.ClassUseMapper;
+import jdk.javadoc.internal.doclets.toolkit.util.DocPath;
+import jdk.javadoc.internal.doclets.toolkit.util.DocPaths;
+import jdk.javadoc.internal.doclets.toolkit.util.DocletAbortException;
+
+/**
+ * Generate package usage information.
+ *
+ *  <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 G. Field
+ * @author Bhavesh Patel (Modified)
+ */
+public class PackageUseWriter extends SubWriterHolderWriter {
+
+    final PackageElement packageElement;
+    final SortedMap<String, Set<TypeElement>> usingPackageToUsedClasses = new TreeMap<>();
+    protected HtmlTree mainTree = HtmlTree.MAIN();
+
+    /**
+     * Constructor.
+     *
+     * @param filename the file to be generated.
+     * @throws IOException
+     * @throws DocletAbortException
+     */
+    public PackageUseWriter(ConfigurationImpl configuration,
+                            ClassUseMapper mapper, DocPath filename,
+                            PackageElement pkgElement) throws IOException {
+        super(configuration, DocPath.forPackage(pkgElement).resolve(filename));
+        this.packageElement = pkgElement;
+
+        // by examining all classes in this package, find what packages
+        // use these classes - produce a map between using package and
+        // used classes.
+        for (TypeElement usedClass : utils.getEnclosedTypeElements(pkgElement)) {
+            Set<TypeElement> usingClasses = mapper.classToClass.get(usedClass);
+            if (usingClasses != null) {
+                for (TypeElement usingClass : usingClasses) {
+                    PackageElement usingPackage = utils.containingPackage(usingClass);
+                    Set<TypeElement> usedClasses = usingPackageToUsedClasses
+                            .get(utils.getPackageName(usingPackage));
+                    if (usedClasses == null) {
+                        usedClasses = new TreeSet<>(utils.makeGeneralPurposeComparator());
+                        usingPackageToUsedClasses.put(utils.getPackageName(usingPackage),
+                                                      usedClasses);
+                    }
+                    usedClasses.add(usedClass);
+                }
+            }
+        }
+    }
+
+    /**
+     * Generate a class page.
+     *
+     * @param configuration the current configuration of the doclet.
+     * @param mapper        the mapping of the class usage.
+     * @param pkgElement    the package being documented.
+     */
+    public static void generate(ConfigurationImpl configuration,
+                                ClassUseMapper mapper, PackageElement pkgElement) {
+        PackageUseWriter pkgusegen;
+        DocPath filename = DocPaths.PACKAGE_USE;
+        try {
+            pkgusegen = new PackageUseWriter(configuration, mapper, filename, pkgElement);
+            pkgusegen.generatePackageUseFile();
+            pkgusegen.close();
+        } catch (IOException exc) {
+            configuration.standardmessage.error(
+                "doclet.exception_encountered",
+                exc.toString(), filename);
+            throw new DocletAbortException(exc);
+        }
+    }
+
+    /**
+     * Generate the package use list.
+     */
+    protected void generatePackageUseFile() throws IOException {
+        HtmlTree body = getPackageUseHeader();
+        HtmlTree div = new HtmlTree(HtmlTag.DIV);
+        div.addStyle(HtmlStyle.contentContainer);
+        if (usingPackageToUsedClasses.isEmpty()) {
+            div.addContent(getResource("doclet.ClassUse_No.usage.of.0", utils.getPackageName(packageElement)));
+        } else {
+            addPackageUse(div);
+        }
+        if (configuration.allowTag(HtmlTag.MAIN)) {
+            mainTree.addContent(div);
+            body.addContent(mainTree);
+        } else {
+            body.addContent(div);
+        }
+        HtmlTree tree = (configuration.allowTag(HtmlTag.FOOTER))
+                ? HtmlTree.FOOTER()
+                : body;
+        addNavLinks(false, tree);
+        addBottom(tree);
+        if (configuration.allowTag(HtmlTag.FOOTER)) {
+            body.addContent(tree);
+        }
+        printHtmlDocument(null, true, body);
+    }
+
+    /**
+     * Add the package use information.
+     *
+     * @param contentTree the content tree to which the package use information will be added
+     */
+    protected void addPackageUse(Content contentTree) throws IOException {
+        HtmlTree ul = new HtmlTree(HtmlTag.UL);
+        ul.addStyle(HtmlStyle.blockList);
+        if (configuration.packages.size() > 1) {
+            addPackageList(ul);
+        }
+        addClassList(ul);
+        contentTree.addContent(ul);
+    }
+
+    /**
+     * Add the list of packages that use the given package.
+     *
+     * @param contentTree the content tree to which the package list will be added
+     */
+    protected void addPackageList(Content contentTree) throws IOException {
+        Content caption = getTableCaption(configuration.getResource(
+                "doclet.ClassUse_Packages.that.use.0",
+                getPackageLink(packageElement, utils.getPackageName(packageElement))));
+        Content table = (configuration.isOutputHtml5())
+                ? HtmlTree.TABLE(HtmlStyle.useSummary, caption)
+                : HtmlTree.TABLE(HtmlStyle.useSummary, useTableSummary, caption);
+        table.addContent(getSummaryTableHeader(packageTableHeader, "col"));
+        Content tbody = new HtmlTree(HtmlTag.TBODY);
+        boolean altColor = true;
+        for (String pkgname: usingPackageToUsedClasses.keySet()) {
+            PackageElement pkg = utils.elementUtils.getPackageElement(pkgname);
+            HtmlTree tr = new HtmlTree(HtmlTag.TR);
+            tr.addStyle(altColor ? HtmlStyle.altColor : HtmlStyle.rowColor);
+            altColor = !altColor;
+            addPackageUse(pkg, tr);
+            tbody.addContent(tr);
+        }
+        table.addContent(tbody);
+        Content li = HtmlTree.LI(HtmlStyle.blockList, table);
+        contentTree.addContent(li);
+    }
+
+    /**
+     * Add the list of classes that use the given package.
+     *
+     * @param contentTree the content tree to which the class list will be added
+     */
+    protected void addClassList(Content contentTree) throws IOException {
+        List<String> classTableHeader = Arrays.asList(
+            configuration.getText("doclet.0_and_1",
+                    configuration.getText("doclet.Class"),
+                    configuration.getText("doclet.Description")));
+        for (String packageName : usingPackageToUsedClasses.keySet()) {
+            PackageElement usingPackage = utils.elementUtils.getPackageElement(packageName);
+            HtmlTree li = new HtmlTree(HtmlTag.LI);
+            li.addStyle(HtmlStyle.blockList);
+            if (usingPackage != null) {
+                li.addContent(getMarkerAnchor(utils.getPackageName(usingPackage)));
+            }
+            String tableSummary = configuration.getText("doclet.Use_Table_Summary",
+                                                        configuration.getText("doclet.classes"));
+            Content caption = getTableCaption(configuration.getResource(
+                    "doclet.ClassUse_Classes.in.0.used.by.1",
+                    getPackageLink(packageElement, utils.getPackageName(packageElement)),
+                    getPackageLink(usingPackage, utils.getPackageName(usingPackage))));
+            Content table = (configuration.isOutputHtml5())
+                    ? HtmlTree.TABLE(HtmlStyle.useSummary, caption)
+                    : HtmlTree.TABLE(HtmlStyle.useSummary, tableSummary, caption);
+            table.addContent(getSummaryTableHeader(classTableHeader, "col"));
+            Content tbody = new HtmlTree(HtmlTag.TBODY);
+            boolean altColor = true;
+            for (TypeElement te : usingPackageToUsedClasses.get(packageName)) {
+                HtmlTree tr = new HtmlTree(HtmlTag.TR);
+                tr.addStyle(altColor ? HtmlStyle.altColor : HtmlStyle.rowColor);
+                altColor = !altColor;
+                addClassRow(te, usingPackage, tr);
+                tbody.addContent(tr);
+            }
+            table.addContent(tbody);
+            li.addContent(table);
+            contentTree.addContent(li);
+        }
+    }
+
+    /**
+     * Add a row for the class that uses the given package.
+     *
+     * @param usedClass the class that uses the given package
+     * @param pkg  the package to which the class belongs
+     * @param contentTree the content tree to which the row will be added
+     */
+    protected void addClassRow(TypeElement usedClass, PackageElement pkg,
+            Content contentTree) {
+        DocPath dp = pathString(usedClass,
+                DocPaths.CLASS_USE.resolve(DocPath.forName(utils, usedClass)));
+        StringContent stringContent = new StringContent(utils.getSimpleName(usedClass));
+        Content td = HtmlTree.TD(HtmlStyle.colOne,
+                getHyperLink(dp.fragment(getPackageAnchorName(pkg)), stringContent));
+        addIndexComment(usedClass, td);
+        contentTree.addContent(td);
+    }
+
+    /**
+     * Add the package use information.
+     *
+     * @param pkg the package that used the given package
+     * @param contentTree the content tree to which the information will be added
+     */
+    protected void addPackageUse(PackageElement pkg, Content contentTree) throws IOException {
+        Content tdFirst = HtmlTree.TD(HtmlStyle.colFirst,
+                getHyperLink(utils.getPackageName(pkg),
+                new StringContent(utils.getPackageName(pkg))));
+        contentTree.addContent(tdFirst);
+        HtmlTree tdLast = new HtmlTree(HtmlTag.TD);
+        tdLast.addStyle(HtmlStyle.colLast);
+        if (pkg != null && !pkg.isUnnamed()) {
+            addSummaryComment(pkg, tdLast);
+        } else {
+            tdLast.addContent(getSpace());
+        }
+        contentTree.addContent(tdLast);
+    }
+
+    /**
+     * Get the header for the package use listing.
+     *
+     * @return a content tree representing the package use header
+     */
+    protected HtmlTree getPackageUseHeader() {
+        String packageText = configuration.getText("doclet.Package");
+        String name = packageElement.isUnnamed() ? "" : utils.getPackageName(packageElement);
+        String title = configuration.getText("doclet.Window_ClassUse_Header", packageText, name);
+        HtmlTree bodyTree = getBody(true, getWindowTitle(title));
+        HtmlTree htmlTree = (configuration.allowTag(HtmlTag.HEADER))
+                ? HtmlTree.HEADER()
+                : bodyTree;
+        addTop(htmlTree);
+        addNavLinks(true, htmlTree);
+        if (configuration.allowTag(HtmlTag.HEADER)) {
+            bodyTree.addContent(htmlTree);
+        }
+        ContentBuilder headContent = new ContentBuilder();
+        headContent.addContent(getResource("doclet.ClassUse_Title", packageText));
+        headContent.addContent(new HtmlTree(HtmlTag.BR));
+        headContent.addContent(name);
+        Content heading = HtmlTree.HEADING(HtmlConstants.TITLE_HEADING, true,
+                HtmlStyle.title, headContent);
+        Content div = HtmlTree.DIV(HtmlStyle.header, heading);
+        if (configuration.allowTag(HtmlTag.MAIN)) {
+            mainTree.addContent(div);
+        } else {
+            bodyTree.addContent(div);
+        }
+        return bodyTree;
+    }
+
+    /**
+     * Get this package link.
+     *
+     * @return a content tree for the package link
+     */
+    protected Content getNavLinkPackage() {
+        Content linkContent = getHyperLink(DocPaths.PACKAGE_SUMMARY,
+                packageLabel);
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+
+    /**
+     * Get the use link.
+     *
+     * @return a content tree for the use link
+     */
+    protected Content getNavLinkClassUse() {
+        Content li = HtmlTree.LI(HtmlStyle.navBarCell1Rev, useLabel);
+        return li;
+    }
+
+    /**
+     * Get the tree link.
+     *
+     * @return a content tree for the tree link
+     */
+    protected Content getNavLinkTree() {
+        Content linkContent = getHyperLink(DocPaths.PACKAGE_TREE,
+                treeLabel);
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+}