/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2011 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.operator.nio.model;

import com.rapidminer.example.ExampleSet;
import com.rapidminer.operator.OperatorException;
import com.rapidminer.operator.nio.ImportWizardUtils;
import com.rapidminer.repository.RepositoryLocation;
import com.rapidminer.tools.LogService;
import com.rapidminer.tools.ProgressListener;

/** The complete state of a data import wizard. Steps of the wizard communicate through this interface.
 * 
 * @author Simon Fischer
 *
 */
public class WizardState {
	
	private final DataResultSetTranslator translator;
	private final DataResultSetTranslationConfiguration config;	
	private final DataResultSetFactory dataResultSetFactory;
	private final AbstractDataResultSetReader operator;
	private final int maxRows = ImportWizardUtils.getPreviewLength();
	
	private RepositoryLocation selectedLocation;
	
	public WizardState(AbstractDataResultSetReader operator, DataResultSetFactory dataResultSetFactory) {
		super();
		this.config = new DataResultSetTranslationConfiguration(operator);
		this.translator = new DataResultSetTranslator(operator);
		this.operator = operator;
		this.dataResultSetFactory = dataResultSetFactory;
	}
	
	public DataResultSetTranslator getTranslator() {
		return translator;
	}	
	
	public DataResultSetTranslationConfiguration getTranslationConfiguration() {
		return config;
	}
	
	public DataResultSetFactory getDataResultSetFactory() {
		return dataResultSetFactory;
	}	

	public ExampleSet readNow(DataResultSet dataResultSet, boolean previewOnly, ProgressListener progressListener) throws OperatorException {
		LogService.getRoot().info("Reading example set...");
		ExampleSet cachedExampleSet = getTranslator().read(dataResultSet, getTranslationConfiguration(), previewOnly, progressListener);
		return cachedExampleSet;
	}

	public int getNumberOfPreviewRows() {		
		return maxRows;
	}

	public AbstractDataResultSetReader getOperator() {
		return operator;
	}

	public void setSelectedLocation(RepositoryLocation selectedLocation) {
		this.selectedLocation = selectedLocation;
	}

	public RepositoryLocation getSelectedLocation() {
		return selectedLocation;
	}
}