D-Net

package eu.dnetlib.validator.service.impls.providers;

import eu.dnetlib.validator.engine.data.DataException;

import eu.dnetlib.validator.engine.data.Provider;

import eu.dnetlib.validator.engine.data.ResultSet;

import eu.dnetlib.validator.engine.execution.ValidationObject;

/**

 * A dummy provider that returns a single, dummy Validation Object.

 * This provider is used along with Rules that do not need an external validation object to be provided to them.

 * @author Manos Karvounis

 */

public class DummyProvider extends Provider {

	private static final long serialVersionUID = -8644756507323283600L;

	public DummyProvider(Integer id) {

		super(id);

	}

	@Override

	public ResultSet<ValidationObject> getValidationObjects() throws ProviderException {

		return new DummyResultSet();

	}

	@Override

	public ResultSet<String> getValidationObjectIds() throws ProviderException {

		throw new UnsupportedOperationException();

	}

	@Override

	public ValidationObject getValidationObject(String valObjId) throws ProviderException {

		throw new UnsupportedOperationException();

	}

	private class DummyValidationObject implements ValidationObject {

		@Override

		public String getId() {

			return this.hashCode()+"";

		}

		@Override

		public void setId(String id) {

		}

		@Override

		public Object getContentAsObject() {

			return null;

		}

		@Override

		public String getStatus() {

			// TODO Auto-generated method stub

			return null;

		}

	}

	private class DummyResultSet implements ResultSet<ValidationObject> {

		private boolean done = false;

		@Override

		public boolean next() throws DataException {

			if(!done) {

				done = true;

				return true;

			}

			return false;

		}

		@Override

		public ValidationObject get() throws DataException {

			return new DummyValidationObject();

		}

		@Override

		public String getError() {

			// TODO Auto-generated method stub

			return null;

		}

	}

	@Override

	public ResultSet<ValidationObject> getValidationObjects(String entity)

			throws ProviderException {

		// TODO Auto-generated method stub

		return null;

	}

}