package org.jtheque.primary.utils.web.analyzers.generic.field;

 /*

  * This file is part of JTheque.

  *            

  * JTheque is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, either version 3 of the License. 

  *

  * JTheque is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with JTheque.  If not, see <http://www.gnu.org/licenses/>.

  */

 import org.jdom.Element;

 import org.jtheque.core.utils.file.XMLException;

 import org.jtheque.core.utils.file.XMLReader;

 import org.jtheque.primary.utils.web.analyzers.generic.Factory;

 import org.jtheque.primary.utils.web.analyzers.generic.operation.ScannerPossessor;

 /**

  * @author Baptiste Wicht

  */

 final class DisabledFieldGetterFactory implements Factory<FieldGetter> {

         @Override

         public boolean canFactor(Element element, XMLReader reader) throws XMLException{

                 return "true".equals(reader.readString("@disabled", element));

         }

         @Override

         public FieldGetter factor(Element element, XMLReader reader) throws XMLException{

                 return new DisabledFieldGetter(reader.readString("@field", element));

         }

         /**

          * A disabled field getter. It seems a field getter who never read a line.

          *

          * @author Baptiste Wicht

          */

         private static final class DisabledFieldGetter implements FieldGetter {

                 private final String fieldName;

                 /**

                  * Construct a new DisabledFieldGetter.

                  *

                  * @param fieldName The name of the field.

                  */

                 private DisabledFieldGetter(String fieldName){

                         this.fieldName = fieldName;

                 }

                 @Override

                 public String getFieldName(){

                         return fieldName;

                 }

                 @Override

                 public boolean mustGet(String line){

                         return false;

                 }

                 @Override

                 public String getValue(String line){

                         return null;

                 }

                 @Override

                 public String performOperations(String line, ScannerPossessor analyzer){

                         return null;

                 }

         }

 }