package com.soebes.maven.extensions;
   
   /*
    * 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.
   */
  
  /**
   * @author Karl Heinz Marbaise <a href="mailto:kama@soebes.de">kama@soebes.de</a>
   */
  class ProjectKey
  {
      private final String groupId;
  
      private final String artifactId;
  
      private final String version;
  
      public ProjectKey( final String groupId, final String artifactId, final String version )
      {
          super();
          this.groupId = groupId;
          this.artifactId = artifactId;
          this.version = version;
      }
  
      public String getGroupId()
      {
          return groupId;
      }
  
      public String getArtifactId()
      {
          return artifactId;
      }
  
      public String getVersion()
      {
          return version;
      }
  
      public String getId()
      {
          return this.groupId + ":" + this.artifactId + ":" + this.version;
      }
  
      public int hashCode()
      {
          final int prime = 31;
          int result = 1;
          result = prime * result + ( ( artifactId == null ) ? 0 : artifactId.hashCode() );
          result = prime * result + ( ( groupId == null ) ? 0 : groupId.hashCode() );
          result = prime * result + ( ( version == null ) ? 0 : version.hashCode() );
          return result;
      }
  
      public boolean equals( Object obj )
      {
          if ( this == obj )
              return true;
          if ( obj == null )
              return false;
          if ( !( obj instanceof ProjectKey ) )
              return false;
          ProjectKey other = (ProjectKey) obj;
          if ( artifactId == null )
          {
              if ( other.artifactId != null )
                  return false;
          }
          else if ( !artifactId.equals( other.artifactId ) )
              return false;
          if ( groupId == null )
          {
              if ( other.groupId != null )
                  return false;
          }
          else if ( !groupId.equals( other.groupId ) )
              return false;
          if ( version == null )
          {
              if ( other.version != null )
                  return false;
          }
          else if ( !version.equals( other.version ) )
             return false;
         return true;
     }
 
 }