// =================== DO NOT EDIT THIS FILE ====================
   //  Generated by Modello Velocity from model-version.vm
   //  template, any modifications will be overwritten.
   // ==============================================================
   package org.apache.maven.model.v4;
   
   import java.io.ObjectStreamException;
   import java.nio.file.Path;
   import java.util.AbstractList;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Objects;
  import java.util.function.BinaryOperator;
  import java.util.function.Function;
  import java.util.stream.Collectors;
  
  import org.apache.maven.api.annotations.Generated;
  import org.apache.maven.api.xml.XmlNode;
  import org.apache.maven.api.model.Model;
  import org.apache.maven.api.model.ModelBase;
  import org.apache.maven.api.model.PluginContainer;
  import org.apache.maven.api.model.PluginConfiguration;
  import org.apache.maven.api.model.BuildBase;
  import org.apache.maven.api.model.Build;
  import org.apache.maven.api.model.CiManagement;
  import org.apache.maven.api.model.Notifier;
  import org.apache.maven.api.model.Contributor;
  import org.apache.maven.api.model.Dependency;
  import org.apache.maven.api.model.Developer;
  import org.apache.maven.api.model.Exclusion;
  import org.apache.maven.api.model.IssueManagement;
  import org.apache.maven.api.model.DistributionManagement;
  import org.apache.maven.api.model.License;
  import org.apache.maven.api.model.MailingList;
  import org.apache.maven.api.model.Organization;
  import org.apache.maven.api.model.PatternSet;
  import org.apache.maven.api.model.Parent;
  import org.apache.maven.api.model.Scm;
  import org.apache.maven.api.model.FileSet;
  import org.apache.maven.api.model.Resource;
  import org.apache.maven.api.model.RepositoryBase;
  import org.apache.maven.api.model.Repository;
  import org.apache.maven.api.model.DeploymentRepository;
  import org.apache.maven.api.model.RepositoryPolicy;
  import org.apache.maven.api.model.Site;
  import org.apache.maven.api.model.ConfigurationContainer;
  import org.apache.maven.api.model.Plugin;
  import org.apache.maven.api.model.PluginExecution;
  import org.apache.maven.api.model.DependencyManagement;
  import org.apache.maven.api.model.PluginManagement;
  import org.apache.maven.api.model.Reporting;
  import org.apache.maven.api.model.Profile;
  import org.apache.maven.api.model.Activation;
  import org.apache.maven.api.model.ActivationProperty;
  import org.apache.maven.api.model.ActivationOS;
  import org.apache.maven.api.model.ActivationFile;
  import org.apache.maven.api.model.ReportPlugin;
  import org.apache.maven.api.model.ReportSet;
  import org.apache.maven.api.model.Prerequisites;
  import org.apache.maven.api.model.Relocation;
  import org.apache.maven.api.model.Extension;
  import org.apache.maven.api.model.InputLocation;
  import org.apache.maven.api.model.InputSource;
  
  @Generated
  public class MavenModelVersion {
  
      public String getModelVersion(Model model) {
          Objects.requireNonNull(model, "model cannot be null");
  
          // 4.1.0
          if (is_4_1_0(model)) {
              return "4.1.0";
          }
          return "4.0.0";
      }
  
      private boolean is_4_1_0(Model model) {
          return model != null && (
                 is_4_1_0((ModelBase) model)
              || has(model.isRoot()) // Model : root
              || has(model.isPreserveModelVersion()) // Model : preserveModelVersion
              || model.getProfiles().stream().anyMatch(this::is_4_1_0) // Model : profiles
              || is_4_1_0(model.getBuild()) // Model : build
          );
      }
      private boolean is_4_1_0(ModelBase modelBase) {
          return modelBase != null && (
                 !modelBase.getSubprojects().isEmpty() // ModelBase : subprojects
          );
      }
      private boolean is_4_1_0(Activation activation) {
          return activation != null && (
                 has(activation.getPackaging()) // Activation : packaging
             || has(activation.getCondition()) // Activation : condition
         );
     }
     private boolean is_4_1_0(Profile profile) {
         return profile != null && (
                is_4_1_0((ModelBase) profile)
             || is_4_1_0(profile.getActivation()) // Profile : activation
         );
     }
     private boolean is_4_1_0(Extension extension) {
         return extension != null && (
                has(extension.getConfiguration()) // Extension : configuration
         );
     }
     private boolean is_4_1_0(Build build) {
         return build != null && (
                build.getExtensions().stream().anyMatch(this::is_4_1_0) // Build : extensions
         );
     }
 
     private boolean has(String str) {
         return str != null;
     }
 
     private boolean has(Path path) {
         return path != null;
     }
 
     private boolean has(boolean bool) {
         return bool;
     }
 
     private boolean has(int val) {
         return val != 0;
     }
 
     private boolean has(List<?> list) {
         return !list.isEmpty();
     }
 
     private boolean has(XmlNode node) {
         return node != null;
     }
 
 }