DescriptionMacro.java

///////////////////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code and other text files for adherence to a set of rules.
// Copyright (C) 2001-2025 the original author or authors.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
///////////////////////////////////////////////////////////////////////////////////////////////

package com.puppycrawl.tools.checkstyle.site;

import java.nio.file.Path;

import org.apache.maven.doxia.macro.AbstractMacro;
import org.apache.maven.doxia.macro.Macro;
import org.apache.maven.doxia.macro.MacroExecutionException;
import org.apache.maven.doxia.macro.MacroRequest;
import org.apache.maven.doxia.sink.Sink;
import org.codehaus.plexus.component.annotations.Component;

import com.puppycrawl.tools.checkstyle.api.DetailNode;
import com.puppycrawl.tools.checkstyle.utils.CommonUtil;

/**
 * A macro that inserts a description of module from its Javadoc.
 */
@Component(role = Macro.class, hint = "description")
public class DescriptionMacro extends AbstractMacro {

    @Override
    public void execute(Sink sink, MacroRequest request) throws MacroExecutionException {
        final Path modulePath = Path.of((String) request.getParameter("modulePath"));
        final String moduleName = CommonUtil.getFileNameWithoutExtension(modulePath.toString());

        final DetailNode moduleJavadoc = SiteUtil.getModuleJavadoc(moduleName, modulePath);
        if (moduleJavadoc == null) {
            throw new MacroExecutionException(
                "Javadoc of module " + moduleName + " is not found.");
        }

        final String moduleDescription = ModuleJavadocParsingUtil.getModuleDescription(
            moduleJavadoc);

        ModuleJavadocParsingUtil.writeOutJavadocPortion(moduleDescription, sink);

    }

}