/*
    * The basecode project
    *
    * Copyright (c) 2007-2019 University of British Columbia
    *
    * Licensed 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.
   *
   */
  package ubic.basecode.ontology.jena;
  
  import com.hp.hpl.jena.ontology.OntResource;
  import com.hp.hpl.jena.vocabulary.OWL2;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import ubic.basecode.ontology.model.OntologyResource;
  
  import org.jspecify.annotations.Nullable;
  import java.util.Objects;
  
  /**
   * @author pavlidis
   */
  abstract class AbstractOntologyResource implements OntologyResource {
  
      protected static final Logger log = LoggerFactory.getLogger( AbstractOntologyResource.class );
  
      private final OntResource res;
  
      @Nullable
      private String _label;
      private boolean _isLabelNull = false;
  
      protected AbstractOntologyResource( OntResource resource ) {
          this.res = resource;
      }
  
      @Nullable
      @Override
      public String getUri() {
          return res.getURI();
      }
  
      @Override
      public String getLocalName() {
          return res.getLocalName();
      }
  
      @Nullable
      @Override
      public String getLabel() {
          if ( _label != null || _isLabelNull ) {
              return _label;
          }
          String label = res.getLabel( "EN" );
          if ( label == null ) {
              label = res.getLabel( null );
          }
          _label = label;
          _isLabelNull = label == null;
          return label;
      }
  
      @Nullable
      @Override
      public String getComment() {
          String label = res.getComment( "EN" );
          if ( label == null ) {
              label = res.getLabel( null );
          }
          return label;
      }
  
      @Override
      public boolean isObsolete() {
          return res.hasLiteral( OWL2.deprecated, true );
      }
  
      @Override
      public <T> T unwrap( Class<T> clazz ) throws ClassCastException {
          return clazz.cast( res );
      }
  
      public boolean equals( Object obj ) {
          if ( this == obj ) return true;
          if ( obj == null ) return false;
          if ( !( obj instanceof OntologyResource ) ) {
              return false;
          }
          final OntologyResource other = ( OntologyResource ) obj;
         if ( getUri() == null && other.getUri() == null ) {
             return Objects.equals( getLabel(), other.getLabel() );
         } else {
             return Objects.equals( getUri(), other.getUri() );
         }
     }
 
     @Override
     public int hashCode() {
         return Objects.hash( getUri() );
     }
 
     @Override
     public String toString() {
         String s = getLabel();
         if ( s == null ) {
             s = res.getLocalName();
         }
         if ( s == null ) {
             s = res.getURI();
         }
         if ( s == null ) {
             s = res.toString();
         }
         return s;
     }
 }