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* Copyright (c) 2015-2021 the original author or authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.bernardomg.velocity.tool;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Objects;
import org.apache.velocity.tools.config.DefaultKey;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Element;
import org.jsoup.parser.Tag;
/**
* Utilities class for fixing several issues in Doxia generated sites, updating and homogenising their layouts.
*
* This was created for Maven Sites. These are built through Doxia which supports XHTML, and not HTML5, and so this
* library generates outdated pages. Also some of the reports which can be generated through Maven plugins suffer from
* similar issues and add another problem, that their layouts may not match at all.
*
* The Docs Maven Skin and its requirements have dictated
* the development of this class. For more generic methods use the {@link com.bernardomg.velocity.tool.HtmlTool
* HtmlTool}.
*
* @author Bernardo Martínez Garrido
*/
@DefaultKey("siteTool")
public class SiteTool {
/**
* Regular expresion indicating invalid values for ids and internal links which will be replaced by hyphens.
*/
private static final String ID_HYPHEN_REGEX = "[ _]";
/**
* Regular expresion indicating invalid values for ids and internal links will will be removed.
*/
private static final String ID_REJECTED_REGEX = "[^\\w#-]";
/**
* Constructs an instance of the utilities class.
*/
public SiteTool() {
super();
}
/**
* Fixes links to anchors in the same page.
*
* Any link such as {@code A link} will be transformed into
* {@code A link}.
*
* The href value will receive the following modifications, only if it is an internal link:
*
*
Text will be set to lower case
*
Underscores will be removed
*
Points will be removed
*
Empty spaces will be removed
*
*
* @param root
* root element with anchors to fix
* @return transformed element
*/
public final Element fixAnchorLinks(final Element root) {
String ref; // Value of the href attribute
String id; // Formatted id
Objects.requireNonNull(root, "Received a null pointer as root element");
// Anchors
for (final Element anchor : root.getElementsByTag("a")) {
// If the attribute doesn't exist then the ref will be an empty
// string
ref = anchor.attr("href");
if ((!ref.isEmpty()) && ("#".equals(ref.substring(0, 1)))) {
id = formatId(ref);
anchor.attr("href", id);
}
}
return root;
}
/**
* Adds or fixes heading ids.
*
* If a heading has an id it will be corrected if needed, otherwise it will be created from the heading text.
*
* The following operations are applied during this process:
*
*
Text will be set to lower case
*
Underscores will be removed
*
Points will be removed
*
Empty spaces will be removed
*
*
* With this headings will end looking like {@code
A heading
}.
*
* @param root
* root element with headings where an id should be added
* @return transformed element
*/
public final Element fixHeadingIds(final Element root) {
final Collection headings; // Headings to fix
String idText; // Text to generate the id
String id; // Formatted id
Objects.requireNonNull(root, "Received a null pointer as root element");
// Table rows with
tags in a
headings = root.select("h1,h2,h3,h4,h5,h6");
for (final Element heading : headings) {
if (heading.hasAttr("id")) {
// Contains an id
// The id text is taken from the attribute
idText = heading.attr("id");
} else {
// Doesn't contain an id
// The id text is taken from the heading text
idText = heading.text();
}
id = formatId(idText);
heading.attr("id", id);
}
return root;
}
/**
* Fixes a Maven Site report.
*
* This is prepared for the following reports:
*
*
Changes report
*
Checkstyle
*
CPD
*
Dependencies
*
Failsafe report
*
Findbugs
*
JDepend
*
License
*
Plugins
*
Plugin management
*
Project summary
*
PMD
*
Surefire report
*
Tags list
*
Team list
*
* Most of the times, the fix consists on correcting the heading levels, and adding an initial heading if needed.
*
* @param root
* root element with the report
* @param report
* the report name
* @return transformed element
*/
public final Element fixReport(final Element root, final String report) {
Objects.requireNonNull(root, "Received a null pointer as root element");
Objects.requireNonNull(report, "Received a null pointer as report");
switch (report) {
case "changes-report":
fixReportChanges(root);
break;
case "checkstyle":
case "checkstyle-aggregate":
fixReportCheckstyle(root);
break;
case "cpd":
fixReportCpd(root);
break;
case "dependencies":
fixReportDependencies(root);
break;
case "dependency-analysis":
fixReportDependencyAnalysis(root);
break;
case "failsafe-report":
fixReportFailsafe(root);
break;
case "findbugs":
case "spotbugs":
fixReportFindbugs(root);
break;
case "jdepend-report":
fixReportJdepend(root);
break;
case "license":
case "licenses":
fixReportLicense(root);
break;
case "plugins":
fixReportPlugins(root);
break;
case "plugin-management":
fixReportPluginManagement(root);
break;
case "pmd":
fixReportPmd(root);
break;
case "project-summary":
case "summary":
fixReportProjectSummary(root);
break;
case "surefire-report":
fixReportSurefire(root);
break;
case "taglist":
fixReportTaglist(root);
break;
case "team-list":
case "team":
fixReportTeamList(root);
break;
default:
break;
}
return root;
}
/**
* Transforms the default icons used by the Maven Site to Font Awesome icons.
*
* @param root
* root element with the page
* @return transformed element
*/
public final Element transformIcons(final Element root) {
final Map replacements; // Texts to replace and
// replacements
Objects.requireNonNull(root, "Received a null pointer as root element");
replacements = new HashMap<>();
replacements.put("img[src$=images/add.gif]",
"Addition");
replacements.put("img[src$=images/remove.gif]",
"Remove");
replacements.put("img[src$=images/fix.gif]",
"Fix");
replacements.put("img[src$=images/update.gif]",
"Refresh");
replacements.put("img[src$=images/icon_help_sml.gif]",
"Question");
replacements.put("img[src$=images/icon_success_sml.gif]",
"Passed");
replacements.put("img[src$=images/icon_warning_sml.gif]",
"Warning");
replacements.put("img[src$=images/icon_error_sml.gif]",
"Failed");
replacements.put("img[src$=images/icon_info_sml.gif]",
"Info");
replaceAll(root, replacements);
return root;
}
/**
* Transforms simple {@code } elements to {@code } elements.
*
* This will wrap {@code } elements with a {@code } element, and add a {@code } with the
* contents of the image's {@code alt} attribute, if said attribute exists.
*
* @param root
* root element with images to transform
* @return transformed element
*/
public final Element transformImagesToFigures(final Element root) {
final Collection images; // Image elements from the
final Collection figures; // figure elements from the
Element figure; // element
Element caption; // element
Objects.requireNonNull(root, "Received a null pointer as root element");
images = root.select("img");
for (final Element img : images) {
figure = new Element(Tag.valueOf("figure"), "");
img.replaceWith(figure);
figure.appendChild(img);
if (img.hasAttr("alt")) {
caption = new Element(Tag.valueOf("figcaption"), "");
caption.text(img.attr("alt"));
figure.appendChild(caption);
}
}
figures = root.select("figure");
for (final Element fig : figures) {
if ("p".equals(fig.parent()
.tag()
.getName())) {
fig.parent()
.unwrap();
}
}
return root;
}
/**
* Fixes the changes report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportChanges(final Element root) {
final Collection headings; // Headings in the body
final Collection sections; // Sections in the body
final Element section; // First section
Element timeElement; // Element with the date
Element smallElement; // Element with the small date
String text; // Heading text
String[] texts; // Split heading text
// Sets all the h2 to h1
for (final Element head : root.getElementsByTag("h2")) {
head.tagName("h1");
}
headings = root.getElementsByTag("h3");
if (!headings.isEmpty()) {
// Sets first h3 to h2
headings.iterator()
.next()
.tagName("h2");
}
// Takes again all the h3 elements, to avoid the new h2
for (final Element heading : root.getElementsByTag("h3")) {
// Moves the heading id to the parent
heading.parent()
.attr("id", heading.id());
heading.removeAttr("id");
// Transforms the date on the heading
text = heading.text();
texts = text.split("–", 2);
if (texts.length == 2) {
timeElement = new Element(Tag.valueOf("time"), "");
timeElement.text(texts[1].trim());
smallElement = new Element(Tag.valueOf("small"), "");
smallElement.append("(");
smallElement.appendChild(timeElement);
smallElement.append(")");
heading.text(texts[0]);
heading.appendChild(smallElement);
}
}
// Moves all the elements out of the sections
sections = root.getElementsByTag("section");
if (!sections.isEmpty()) {
section = sections.iterator()
.next();
for (final Element child : section.children()) {
child.remove();
root.appendChild(child);
}
section.remove();
}
}
/**
* Fixes the Checkstyle report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportCheckstyle(final Element root) {
final Collection elements; // Found elements
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
elements.iterator()
.next()
.tagName("h1");
}
root.select("img[src=\"images/rss.png\"]")
.remove();
}
/**
* Fixes the CPD report page.
*
* @param root
* element for the body of the report page
*/
private final void fixReportCpd(final Element root) {
final Collection elements; // Found elements
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
elements.iterator()
.next()
.tagName("h1");
}
}
/**
* Fixes the dependencies report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportDependencies(final Element root) {
root.prepend("
Dependencies Report
");
}
/**
* Fixes the dependency analysis report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportDependencyAnalysis(final Element root) {
for (final Element head : root.getElementsByTag("h2")) {
head.tagName("h1");
}
for (final Element head : root.getElementsByTag("h3")) {
head.tagName("h2");
}
}
/**
* Fixes the Failsafe report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportFailsafe(final Element root) {
final Collection elements; // Found elements
final Element heading; // First h2 heading
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
heading = elements.iterator()
.next();
heading.tagName("h1");
heading.text("Failsafe Report");
}
}
/**
* Fixes the Findbugs report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportFindbugs(final Element root) {
final Collection elements; // Found elements
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
elements.iterator()
.next()
.tagName("h1");
}
}
/**
* Fixes the JDepend report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportJdepend(final Element root) {
final Collection elements; // Found elements
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
elements.iterator()
.next()
.tagName("h1");
}
}
/**
* Fixes the License report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportLicense(final Element root) {
root.prepend("
License
");
}
/**
* Fixes the plugin management report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportPluginManagement(final Element root) {
final Collection sections; // Sections in the body
final Element section; // Section element
for (final Element head : root.getElementsByTag("h2")) {
head.tagName("h1");
}
sections = root.getElementsByTag("section");
if (!sections.isEmpty()) {
section = sections.iterator()
.next();
for (final Element child : section.children()) {
child.remove();
root.appendChild(child);
}
section.remove();
}
}
/**
* Fixes the plugins report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportPlugins(final Element root) {
root.prepend("
Plugins Report
");
}
/**
* Fixes the PMD report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportPmd(final Element root) {
final Collection elements; // Found elements
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
elements.iterator()
.next()
.tagName("h1");
}
}
/**
* Fixes the project summary report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportProjectSummary(final Element root) {
for (final Element head : root.getElementsByTag("h2")) {
head.tagName("h1");
}
for (final Element head : root.getElementsByTag("h3")) {
head.tagName("h2");
}
}
/**
* Fixes the Surefire report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportSurefire(final Element root) {
final Collection elements; // Found elements
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
elements.iterator()
.next()
.tagName("h1");
}
}
/**
* Fixes the tag list report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportTaglist(final Element root) {
final Collection elements; // Found elements
elements = root.getElementsByTag("h2");
if (!elements.isEmpty()) {
elements.iterator()
.next()
.tagName("h1");
}
}
/**
* Fixes the team list report page.
*
* @param root
* root element for the report page to fix
*/
private final void fixReportTeamList(final Element root) {
for (final Element head : root.getElementsByTag("h2")) {
head.tagName("h1");
}
for (final Element head : root.getElementsByTag("h3")) {
head.tagName("h2");
}
}
/**
* Formats the received id, transforming it into a valid internal anchor id.
*
* @param id
* id to transform
* @return a valid anchor id
*/
private final String formatId(final String id) {
return id.trim()
.replaceAll(ID_HYPHEN_REGEX, "-")
.replaceAll(ID_REJECTED_REGEX, "");
}
/**
* Returns the result from replacing a collection of HTML elements on the received HTML code.
*
* These elements are received as a {@code Map}, made up of pairs where the key is a CSS selector, and the value is
* the replacement for the selected element.
*
* @param root
* root element for the content to modify
* @param replacements
* {@code Map} where the key is a CSS selector and the value the element's replacement
*/
private final void replaceAll(final Element root, final Map replacements) {
String selector; // Iterated selector
String replacement; // Iterated HTML replacement
Element replacementElem; // Iterated replacement
Collection elements; // Selected elements
Element replacementBody; // Body of the replacement
for (final Entry replacementEntry : replacements.entrySet()) {
selector = replacementEntry.getKey();
replacement = replacementEntry.getValue();
elements = root.select(selector);
if (!elements.isEmpty()) {
// There are elements to replace
// Processes the replacement
replacementBody = Jsoup.parse(replacement)
.body();
if (!replacementBody.children()
.isEmpty()) {
replacementElem = replacementBody.child(0);
// Replaces the elements
for (final Element element : elements) {
element.replaceWith(replacementElem.clone());
}
}
}
}
}
}
