Merge DependencyCollector into DependencyResolver

api/maven-api-core/src/main/java/org/apache/maven/api/Node.java

@@ -33,7 +33,7 @@
  * Represents a dependency node within a Maven project's dependency collector.
  *
  * @since 4.0.0
- * @see org.apache.maven.api.services.DependencyCollectorResult#getRoot()
+ * @see org.apache.maven.api.services.DependencyResolverResult#getRoot()
  */
 @Experimental
 @Immutable

api/maven-api-core/src/main/java/org/apache/maven/api/Session.java

@@ -496,25 +496,25 @@ Artifact createArtifact(
     boolean isVersionSnapshot(@Nonnull String version);
 
     /**
-     * Shortcut for {@code getService(DependencyCollector.class).collect(...)}
+     * Shortcut for {@code getService(DependencyResolver.class).collect(...)}
      *
      * @param artifact artifact for which to get the dependencies, including transitive ones
      * @return root node of the dependency graph for the given artifact
      *
-     * @see org.apache.maven.api.services.DependencyCollector#collect(Session, Artifact)
-     * @throws org.apache.maven.api.services.DependencyCollectorException if the dependency collection failed
+     * @see org.apache.maven.api.services.DependencyResolver#collect(Session, Artifact)
+     * @throws org.apache.maven.api.services.DependencyResolverException if the dependency collection failed
      */
     @Nonnull
     Node collectDependencies(@Nonnull Artifact artifact);
 
     /**
-     * Shortcut for {@code getService(DependencyCollector.class).collect(...)}
+     * Shortcut for {@code getService(DependencyResolver.class).collect(...)}
      *
      * @param project project for which to get the dependencies, including transitive ones
      * @return root node of the dependency graph for the given project
      *
-     * @see org.apache.maven.api.services.DependencyCollector#collect(Session, Project)
-     * @throws org.apache.maven.api.services.DependencyCollectorException if the dependency collection failed
+     * @see org.apache.maven.api.services.DependencyResolver#collect(Session, Project)
+     * @throws org.apache.maven.api.services.DependencyResolverException if the dependency collection failed
      */
     @Nonnull
     Node collectDependencies(@Nonnull Project project);
@@ -524,13 +524,13 @@ Artifact createArtifact(
      * only concerned about determining the coordinates of the transitive dependencies and does not actually resolve the
      * artifact files.
      * <p>
-     * Shortcut for {@code getService(DependencyCollector.class).resolve(...)}
+     * Shortcut for {@code getService(DependencyResolver.class).resolve(...)}
      *
      * @param dependency dependency for which to get transitive dependencies
      * @return root node of the dependency graph for the given artifact
      *
-     * @see org.apache.maven.api.services.DependencyCollector#collect(Session, DependencyCoordinate)
-     * @throws org.apache.maven.api.services.DependencyCollectorException if the dependency collection failed
+     * @see org.apache.maven.api.services.DependencyResolver#collect(Session, DependencyCoordinate)
+     * @throws org.apache.maven.api.services.DependencyResolverException if the dependency collection failed
      */
     @Nonnull
     Node collectDependencies(@Nonnull DependencyCoordinate dependency);

api/maven-api-core/src/main/java/org/apache/maven/api/plugin/annotations/Dependencies.java

@@ -30,21 +30,22 @@
  * Indicates that a given field will be injected with the result of
  * a dependency collection or resolution request. Whether a collection
  * or resolution request is performed is controlled by the {@link #pathScope()}
- * field.
+ * field, the injected field type and the {@link #requestType()}.
  * <p>
- * If a collection request is to be done, the type of the field annotated with
- * this annotation can be either <ul>
- * <li>a {@link org.apache.maven.api.services.DependencyCollectorResult DependencyCollectorResult},</li>
- * <li>or a {@link org.apache.maven.api.Node Node} object.</li>
- * </ul>
- * <p>
- * If a resolution request is to be done, the type of the annotated field can be either <ul>
- * <li>a {@link org.apache.maven.api.services.DependencyResolverResult DependencyResolverResult},</li>
- * <li>a {@code List<}{@link org.apache.maven.api.Node Node}{@code >},</li>
- * <li>a {@code List<}{@link java.nio.file.Path Path}{@code >},</li>
- * <li>a {@code Map<}{@link org.apache.maven.api.PathType PathType}{@code , List<}{@link java.nio.file.Path Path}{@code >>},</li>
- * <li>or a {@code Map<}{@link org.apache.maven.api.Dependency Dependency}{@code , }{@link java.nio.file.Path Path}{@code >}.</li>
- * </ul>
+ * If the {@code requestType} is not set explicitly, it will be inferred
+ * from the {@code pathScope} and the injected field type. If the type
+ * is {@link org.apache.maven.api.Node Node} and {@code pathScope == ""},
+ * then the dependencies will be <i>collected</i>.
+ * If the type is {@link org.apache.maven.api.Node Node} or
+ * {@code List<}{@link org.apache.maven.api.Node Node}{@code >},
+ * and {@code pathScope != ""}, the dependencies will be <i>flattened</i>.
+ * Else the dependencies will be <i>resolved</i> and {@code pathScope} must be non empty,
+ * and the field type can be {@link org.apache.maven.api.Node Node},
+ * {@code List<}{@link org.apache.maven.api.Node Node}{@code >},
+ * {@link org.apache.maven.api.services.DependencyResolverResult DependencyResolverResult},
+ * {@code List<}{@link java.nio.file.Path Path}{@code >},
+ * {@code Map<}{@link org.apache.maven.api.PathType PathType}{@code , List<}{@link java.nio.file.Path Path}{@code >>},
+ * or {@code Map<}{@link org.apache.maven.api.Dependency Dependency}{@code , }{@link java.nio.file.Path Path}{@code >}.
  *
  * @since 4.0.0
  */
@@ -62,4 +63,12 @@
      * @return the id of the path scope
      */
     String pathScope() default "";
+
+    /**
+     * The request type, in case the default one is not correct.
+     * Valid values are {@code collect}, {@code flatten}, or {@code resolve}.
+     *
+     * @return the request type
+     */
+    String requestType() default "";
 }

api/maven-api-core/src/main/java/org/apache/maven/api/plugin/annotations/Mojo.java

@@ -94,4 +94,22 @@
      */
     @Nonnull
     String configurator() default "";
+
+    /**
+     * Indicates whether dependency collection will be
+     * required when executing the Mojo.
+     * If not set, it will be inferred from the fields
+     * annotated with the {@link Dependencies} annotation.
+     */
+    @Nonnull
+    boolean dependencyCollection() default false;
+
+    /**
+     * Comma separated list of path scopes that will be
+     * required for dependency resolution.
+     * If not set, it will be inferred from the fields
+     * annotated with the {@link Dependencies} annotation.
+     */
+    @Nonnull
+    String dependencyResolutionPathScopes() default "";
 }