import org.apache.maven.api.services.model.ProfileActivationContext;
import org.apache.maven.api.services.model.ProfileActivator;

/**
 * Determines profile activation based on the operating system of the current runtime platform.
 *
 * @see ActivationOS
 */
@Named("os")
@Singleton
public class OperatingSystemProfileActivator implements ProfileActivator {

      <description>This is an activator which will detect an operating system's attributes in order
        to activate its profile.</description>
      <fields>
        <field>
          <name>name</name>
          <version>4.0.0+</version>
          <type>String</type>
          <description>
            The name of the operating system to be used to activate the profile. This must be an exact match

import org.apache.maven.artifact.versioning.ArtifactVersion;
import org.apache.maven.repository.legacy.metadata.MetadataResolutionRequest;

/**
 * Provides some metadata operations, like querying the remote repository for a list of versions available for an
 * artifact - deprecated
 */
@Deprecated

     */
    @Nonnull
    Node collectDependencies(@Nonnull Project project);

    /**
     * Collects the transitive dependencies of some artifacts and builds a dependency graph. Note that this operation is
     * only concerned about determining the coordinates of the transitive dependencies and does not actually resolve the
     * artifact files.
     * <p>

        </field>
      </fields>
    </class>
    <class java.clone="deep">
      <name>ActivationOS</name>
      <version>1.0.0+</version>
      <description>
        This is an activator which will detect an operating system's attributes in order to activate
        its profile.
      </description>
      <fields>
        <field>
          <name>name</name>
          <version>1.0.0+</version>
          <type>String</type>

 * under the License.
 */
package org.apache.maven.repository.metadata;

import java.util.List;

import org.apache.maven.artifact.repository.ArtifactRepository;

/**
 * Provides some metadata operations, like querying the remote repository for a list of versions available for an
 * artifact.
 *
 */
@Deprecated
public interface MetadataSource {
    String ROLE = MetadataSource.class.getName();

    /**
     * Checks the specified (effective) model for missing or invalid values. The effective model is fully assembled and
     * has undergone inheritance, interpolation and other model operations.
     *
     * @param model The model to validate, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.

    private List<MavenProject> projects;

    /**
     * The full set of projects before any potential constraining by --projects. Useful in the case where you want to
     * build a smaller set of projects but perform other operations in the context of your reactor.
     */
    private List<MavenProject> allProjects;

    private MavenProject topLevelProject;

    private ProjectDependencyGraph projectDependencyGraph;

          <description>Flags this Mojo to require online mode for its operation.</description>
          <defaultValue>false</defaultValue>
        </field>
        <field>
          <name>onlineRequired</name>
          <version>2.0.0+</version>
          <type>boolean</type>
          <description>Flags this Mojo to require online mode for its operation.</description>
          <defaultValue>false</defaultValue>
        </field>

  latest version of some snapshot artifact. If m2 is offline, SCM operations
  cannot succeed; no artifact downloads can take place, regardless of whether
  they are snapshot versions; artifact deployment cannot take place; certain
  types of tests cannot be setup, since the container used to run them cannot be
  reached or started.

  All of these operations will produce their own unique errors in the absence of