package org.apache.maven.internal.impl;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  
  import java.util.Objects;
  
  import org.apache.maven.api.Dependency;
  import org.apache.maven.api.DependencyCoordinate;
  import org.apache.maven.api.Scope;
  import org.apache.maven.api.Type;
  import org.apache.maven.api.Version;
  import org.apache.maven.api.annotations.Nonnull;
  import org.apache.maven.api.annotations.Nullable;
  import org.apache.maven.api.services.TypeRegistry;
  import org.eclipse.aether.artifact.ArtifactProperties;
  
  import static org.apache.maven.internal.impl.Utils.nonNull;
  
  public class DefaultDependency implements Dependency
  {
      private final AbstractSession session;
      private final org.eclipse.aether.graph.Dependency dependency;
      private final String key;
  
      public DefaultDependency( @Nonnull AbstractSession session,
                                @Nonnull org.eclipse.aether.graph.Dependency dependency )
      {
          this.session = nonNull( session, "session" );
          this.dependency = nonNull( dependency, "dependency" );
          this.key = getGroupId()
                  + ':' + getArtifactId()
                  + ':' + getExtension()
                  + ( getClassifier().length() > 0 ? ":" + getClassifier() : "" )
                  + ':' + getVersion();
      }
  
      @Override
      public String key()
      {
          return key;
      }
  
      @Nonnull
      public org.eclipse.aether.graph.Dependency getDependency()
      {
          return dependency;
      }
  
      @Override
      public String getGroupId()
      {
          return dependency.getArtifact().getGroupId();
      }
  
      @Override
      public String getArtifactId()
      {
          return dependency.getArtifact().getArtifactId();
      }
  
      @Override
      public String getClassifier()
      {
          return dependency.getArtifact().getClassifier();
      }
  
      @Override
      public Version getVersion()
      {
          return session.parseVersion( dependency.getArtifact().getVersion() );
      }
  
      @Override
      public String getExtension()
      {
          return dependency.getArtifact().getExtension();
      }
  
      @Override
      public Type getType()
      {
          String type = dependency.getArtifact().getProperty( ArtifactProperties.TYPE,
                 dependency.getArtifact().getExtension() );
         return session.getService( TypeRegistry.class ).getType( type );
     }
 
     @Override
     public boolean isSnapshot()
     {
         return DefaultVersionParser.checkSnapshot( dependency.getArtifact().getVersion() );
     }
 
     @Nonnull
     @Override
     public Scope getScope()
     {
         return Scope.get( dependency.getScope() );
     }
 
     @Nullable
     @Override
     public boolean isOptional()
     {
         return dependency.isOptional();
     }
 
     @Nonnull
     @Override
     public DependencyCoordinate toCoordinate()
     {
         return session.createDependencyCoordinate( this );
     }
 
     @Override
     public boolean equals( Object o )
     {
         return o instanceof DefaultDependency
                 && Objects.equals( key, ( (DefaultDependency) o ).key );
     }
 
     @Override
     public int hashCode()
     {
         return key.hashCode();
     }
 
     @Override
     public String toString()
     {
         return dependency.toString();
     }
 }