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JavadocReport.java
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JavadocReport.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.maven.plugins.javadoc;
import java.io.File;
import java.nio.file.Path;
import java.util.Collection;
import java.util.Locale;
import java.util.Map;
import java.util.ResourceBundle;
import java.util.stream.Collectors;
import org.apache.maven.doxia.sink.Sink;
import org.apache.maven.doxia.sink.SinkFactory;
import org.apache.maven.doxia.siterenderer.DocumentRenderingContext;
import org.apache.maven.doxia.siterenderer.sink.SiteRendererSink;
import org.apache.maven.doxia.tools.SiteTool;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Execute;
import org.apache.maven.plugins.annotations.LifecyclePhase;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.plugins.annotations.ResolutionScope;
import org.apache.maven.reporting.MavenMultiPageReport;
import org.apache.maven.reporting.MavenReportException;
/**
* Generates documentation for the <code>Java code</code> in a <b>NON aggregator</b> project using the standard
* <a href="https://docs.oracle.com/en/java/javase/17/docs/specs/man/javadoc.html">Javadoc Tool</a>.
*
* @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
* @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a>
* @since 2.0
* @see <a href="https://docs.oracle.com/en/java/javase/17/docs/specs/man/javadoc.html">Javadoc Tool</a>
*/
@Mojo(name = "javadoc", requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = true)
@Execute(phase = LifecyclePhase.GENERATE_SOURCES)
public class JavadocReport extends AbstractJavadocMojo implements MavenMultiPageReport {
// ----------------------------------------------------------------------
// Report Mojo Parameters
// ----------------------------------------------------------------------
/**
* Specifies the destination directory where javadoc saves the generated HTML files.
*/
@Parameter(
property = "reportOutputDirectory",
defaultValue = "${project.reporting.outputDirectory}/apidocs",
required = true)
private File reportOutputDirectory;
/**
* The name of the destination directory.
* <br/>
*
* @since 2.1
*/
@Parameter(property = "destDir", defaultValue = "apidocs")
private String destDir;
/**
* The name of the Javadoc report to be displayed in the Maven Generated Reports page
* (i.e. <code>project-reports.html</code>).
*
* @since 2.1
*/
@Parameter(property = "name")
private String name;
/**
* The description of the Javadoc report to be displayed in the Maven Generated Reports page
* (i.e. <code>project-reports.html</code>).
*
* @since 2.1
*/
@Parameter(property = "description")
private String description;
// ----------------------------------------------------------------------
// Report public methods
// ----------------------------------------------------------------------
/** {@inheritDoc} */
@Override
public String getName(Locale locale) {
if (name == null || name.isEmpty()) {
return getBundle(locale).getString("report.javadoc.name");
}
return name;
}
/** {@inheritDoc} */
@Override
public String getDescription(Locale locale) {
if (description == null || description.isEmpty()) {
return getBundle(locale).getString("report.javadoc.description");
}
return description;
}
/** {@inheritDoc} */
public void generate(Sink sink, Locale locale) throws MavenReportException {
generate(sink, null, locale);
}
/** {@inheritDoc} */
@Override
public void generate(Sink sink, SinkFactory sinkFactory, Locale locale) throws MavenReportException {
outputDirectory = getReportOutputDirectory();
try {
executeReport(locale);
} catch (MavenReportException | RuntimeException e) {
if (failOnError) {
throw e;
}
getLog().error("Error while creating javadoc report: " + e.getMessage(), e);
}
}
/** {@inheritDoc} */
@Override
public String getOutputName() {
return destDir + "/index";
}
/** {@inheritDoc} */
@Override
public boolean isExternalReport() {
return true;
}
/**
* {@inheritDoc}
*
* <br>
* The logic is the following:
* <table><caption>Can-generate-report Matrix</caption>
* <tbody>
* <tr>
* <th> isAggregator </th>
* <th> hasSourceFiles </th>
* <th> isRootProject </th>
* <th> Generate Report </th>
* </tr>
* <tr>
* <td>True</td>
* <td>True</td>
* <td>True</td>
* <td>True</td>
* </tr>
* <tr>
* <td>True</td>
* <td>True</td>
* <td>False</td>
* <td>False</td>
* </tr>
* <tr>
* <td>True</td>
* <td>False</td>
* <td>True</td>
* <td>False</td>
* </tr>
* <tr>
* <td>True</td>
* <td>False</td>
* <td>False</td>
* <td>False</td>
* </tr>
* <tr>
* <td>False</td>
* <td>True</td>
* <td>True</td>
* <td>True</td>
* </tr>
* <tr>
* <td>False</td>
* <td>True</td>
* <td>False</td>
* <td>True</td>
* </tr>
* <tr>
* <td>False</td>
* <td>False</td>
* <td>True</td>
* <td>False</td>
* </tr>
* <tr>
* <td>False</td>
* <td>False</td>
* <td>False</td>
* <td>False</td>
* </tr>
* </tbody>
* </table>
*/
@Override
public boolean canGenerateReport() {
boolean canGenerate = false;
if (this.isAggregator() || !"pom".equals(this.project.getPackaging())) {
Collection<Path> sourcePaths;
Map<Path, Collection<String>> files;
try {
sourcePaths = getSourcePaths().stream()
.flatMap(e -> e.getSourcePaths().stream())
.collect(Collectors.toList());
files = getFiles(sourcePaths);
} catch (MavenReportException e) {
getLog().error(e.getMessage(), e);
return false;
}
canGenerate = canGenerateReport(files);
}
if (getLog().isDebugEnabled()) {
getLog().debug(" canGenerateReport = " + canGenerate + " for project " + this.project);
}
return canGenerate;
}
/** {@inheritDoc} */
@Override
public String getCategoryName() {
return CATEGORY_PROJECT_REPORTS;
}
/** {@inheritDoc} */
@Override
public File getReportOutputDirectory() {
if (reportOutputDirectory == null) {
return outputDirectory;
}
return reportOutputDirectory;
}
/**
* Method to set the directory where the generated reports will be put
*
* @param reportOutputDirectory the directory file to be set
*/
@Override
public void setReportOutputDirectory(File reportOutputDirectory) {
updateReportOutputDirectory(reportOutputDirectory, destDir);
}
/**
* @param theDestDir the destination directory
*/
public void setDestDir(String theDestDir) {
this.destDir = theDestDir;
updateReportOutputDirectory(reportOutputDirectory, theDestDir);
}
private void updateReportOutputDirectory(File reportOutputDirectory, String destDir) {
if (reportOutputDirectory != null
&& destDir != null
&& !reportOutputDirectory.getAbsolutePath().endsWith(destDir)) {
this.reportOutputDirectory = new File(reportOutputDirectory, destDir);
} else {
this.reportOutputDirectory = reportOutputDirectory;
}
}
/** {@inheritDoc} */
@Override
public void doExecute() throws MojoExecutionException, MojoFailureException {
if (skip) {
getLog().info("Skipping javadoc generation");
return;
}
File outputDirectory = new File(getOutputDirectory());
String filename = getOutputName() + ".html";
Locale locale = SiteTool.DEFAULT_LOCALE;
try {
String reportMojoInfo = mojoExecution.getPlugin().getId() + ":" + mojoExecution.getGoal();
DocumentRenderingContext docRenderingContext =
new DocumentRenderingContext(outputDirectory, filename, reportMojoInfo);
SiteRendererSink sink = new SiteRendererSink(docRenderingContext);
generate(sink, null, locale);
} catch (MavenReportException | RuntimeException e) {
failOnError("An error has occurred in " + getName(Locale.ENGLISH) + " report generation", e);
}
}
/**
* Gets the resource bundle for the specified locale.
*
* @param locale the locale of the currently generated report
* @return the resource bundle for the requested locale
*/
private ResourceBundle getBundle(Locale locale) {
return ResourceBundle.getBundle("javadoc-report", locale, getClass().getClassLoader());
}
}