com.github.ferstl.depgraph.DependencyGraphMojo Maven / Gradle / Ivy

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/*
 * Copyright (c) 2014 - 2017 the original author or authors.
 *
 * Licensed 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 com.github.ferstl.depgraph;

import java.util.EnumSet;
import org.apache.maven.artifact.resolver.filter.ArtifactFilter;
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 com.github.ferstl.depgraph.dependency.DependencyNode;
import com.github.ferstl.depgraph.dependency.DependencyNodeIdRenderer;
import com.github.ferstl.depgraph.dependency.GraphFactory;
import com.github.ferstl.depgraph.dependency.GraphStyleConfigurer;
import com.github.ferstl.depgraph.dependency.MavenGraphAdapter;
import com.github.ferstl.depgraph.dependency.NodeResolution;
import com.github.ferstl.depgraph.dependency.SimpleGraphFactory;
import com.github.ferstl.depgraph.graph.GraphBuilder;

import static java.util.EnumSet.allOf;
import static java.util.EnumSet.complementOf;
import static java.util.EnumSet.of;

/**
 * Creates a dependency graph of a maven module.
 */
@Mojo(
    name = "graph",
    aggregator = false,
    defaultPhase = LifecyclePhase.NONE,
    requiresDependencyCollection = ResolutionScope.TEST,
    threadSafe = true)
public class DependencyGraphMojo extends AbstractGraphMojo {

  /**
   * If set to {@code true}, the created graph will show the {@code groupId} on all artifacts.
   *
   * @since 1.0.3
   */
  @Parameter(property = "showGroupIds", defaultValue = "false")
  boolean showGroupIds;

  /**
   * If set to {@code true}, the created graph will show version information an all artifacts. Depending on the flags
   * {@link #showDuplicates} and {@link #showConflicts}, the version will either be shown directly in the artifact
   * nodes or on the dependency edges.
   *
   * @since 1.0.0
   */
  @Parameter(property = "showVersions", defaultValue = "false")
  boolean showVersions;

  /**
   * If set to {@code true}, the created graph will show type information an all artifacts.
   *
   * @since 3.0.0
   */
  @Parameter(property = "showTypes", defaultValue = "false")
  boolean showTypes;

  /**
   * If set to {@code true}, the created graph will show classifier information an all artifacts.
   *
   * @since 3.0.0
   */
  @Parameter(property = "showClassifiers", defaultValue = "false")
  boolean showClassifiers;

  /**
   * If set to {@code true}, the graph will additionally contain conflicting dependencies. Note that the dependency
   * graph may not be 100% accurate when this flag is enabled and the plugin is executed with a Maven version greater
   * or equal 3.0!

   * Because of these possible inaccuracies the option {@link #showAllAttributesForJson} does not enable this flag.
   *
   * @since 1.0.0
   */
  @Parameter(property = "showConflicts", defaultValue = "false")
  boolean showConflicts;

  /**
   * If set to {@code true}, the graph will additionally contain duplicate dependencies. Note that the dependency graph
   * may not be 100% accurate when this flag is enabled and the plugin is executed with a Maven version greater or
   * equal 3.0!

   * Because of these possible inaccuracies the option {@link #showAllAttributesForJson} does not enable this flag.
   *
   * @since 1.0.0
   */
  @Parameter(property = "showDuplicates", defaultValue = "false")
  boolean showDuplicates;

  /**
   * Merge dependencies with multiple types into one graph node instead of having a node per type.
   *
   * @since 3.0.0
   */
  @Parameter(property = "mergeTypes", defaultValue = "false")
  boolean mergeTypes;

  /**
   * Merge dependencies with multiple classifiers into one graph node instead of having a node per classifier.
   *
   * @since 3.0.0
   */
  @Parameter(property = "mergeClassifiers", defaultValue = "false")
  boolean mergeClassifiers;

  @Override
  protected GraphFactory createGraphFactory(ArtifactFilter globalFilter, ArtifactFilter transitiveIncludeExcludeFilter, ArtifactFilter targetFilter, GraphStyleConfigurer graphStyleConfigurer) {
    handleOptionsForFullGraph();

    GraphBuilder graphBuilder = createGraphBuilder(graphStyleConfigurer);
    MavenGraphAdapter adapter = createMavenGraphAdapter(transitiveIncludeExcludeFilter, targetFilter);

    return new SimpleGraphFactory(adapter, globalFilter, graphBuilder);
  }

  GraphBuilder createGraphBuilder(GraphStyleConfigurer graphStyleConfigurer) {
    DependencyNodeIdRenderer nodeIdRenderer = DependencyNodeIdRenderer.versionlessId()
        .withClassifier(!this.mergeClassifiers)
        .withType(!this.mergeTypes);

    return graphStyleConfigurer
        .showGroupIds(this.showGroupIds)
        .showArtifactIds(true)
        .showTypes(this.showTypes)
        .showClassifiers(this.showClassifiers)
        .showVersionsOnNodes(this.showVersions)
        .showVersionsOnEdges(this.showVersions && requiresFullGraph())
        .configure(GraphBuilder.create(nodeIdRenderer));
  }

  private void handleOptionsForFullGraph() {
    if (showFullGraph()) {
      this.showGroupIds = true;
      this.showVersions = true;
      this.showClassifiers = true;
      this.showTypes = true;
    }
  }

  private MavenGraphAdapter createMavenGraphAdapter(ArtifactFilter transitiveIncludeExcludeFilter, ArtifactFilter targetFilter) {
    MavenGraphAdapter adapter;
    if (requiresFullGraph()) {
      EnumSet resolutions = allOf(NodeResolution.class);
      resolutions = !this.showConflicts ? complementOf(of(NodeResolution.OMITTED_FOR_CONFLICT)) : resolutions;
      resolutions = !this.showDuplicates ? complementOf(of(NodeResolution.OMITTED_FOR_DUPLICATE)) : resolutions;

      adapter = new MavenGraphAdapter(this.dependencyTreeBuilder, this.localRepository, transitiveIncludeExcludeFilter, targetFilter, resolutions);
    } else {
      // there are no reachable paths to be omitted
      adapter = new MavenGraphAdapter(this.dependencyGraphBuilder, transitiveIncludeExcludeFilter, targetFilter, false);
    }
    return adapter;
  }

  private boolean requiresFullGraph() {
    return this.showConflicts || this.showDuplicates;
  }
}