net.kemitix.dependency.digraph.maven.plugin.DefaultSourceDirectoryProvider Maven / Gradle / Ivy

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Generates a DOT Digraph of dependencies between packages within a project

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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2018 Paul Campbell
 *
 * 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 net.kemitix.dependency.digraph.maven.plugin;

import org.apache.maven.model.Build;
import org.apache.maven.project.MavenProject;

import javax.annotation.concurrent.Immutable;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

/**
 * Implementation of a provider for the list of source directories.
 *
 * @author Paul Campbell ([email protected])
 */
@Immutable
class DefaultSourceDirectoryProvider implements SourceDirectoryProvider {

    @Override
    public List getDirectories(
            final List projects, final boolean includeTests
                                      ) {
        final List directories = new ArrayList<>();
        projects.forEach((final MavenProject project) -> {
            addProject(directories, project, includeTests);
        });
        return directories;
    }

    private void addProject(
            final List directories, final MavenProject project, final boolean includeTests
                           ) {
        final Build build = project.getBuild();
        addDirectoryIfExists(directories, build.getSourceDirectory());
        if (includeTests) {
            addDirectoryIfExists(directories, build.getTestSourceDirectory());
        }
    }

    private void addDirectoryIfExists(
            final List directories, final String directory
                                     ) {
        if (directory != null && Files.isDirectory(Paths.get(directory))) {
            directories.add(directory);
        }
    }

}