EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.io.common.mapping.out;

import java.sql.PreparedStatement;

import java.sql.SQLException;

import java.util.ArrayList;

import java.util.List;

import org.apache.logging.log4j.LogManager;

import org.apache.logging.log4j.Logger;

import eu.etaxonomy.cdm.io.common.DbExportConfiguratorBase;

import eu.etaxonomy.cdm.io.common.DbExportStateBase;

import eu.etaxonomy.cdm.io.common.Source;

import eu.etaxonomy.cdm.io.common.mapping.CdmIoMapping;

import eu.etaxonomy.cdm.io.common.mapping.CdmMapperBase;

import eu.etaxonomy.cdm.model.common.CdmBase;

/**

 * @author a.mueller

 * @since 12.05.2009

 */

public class CdmDbExportMapping<STATE extends DbExportStateBase<CONFIG, TRANSFORM>, CONFIG extends DbExportConfiguratorBase<STATE, TRANSFORM, Source>, TRANSFORM extends IExportTransformer>

        extends CdmIoMapping {

    private static final Logger logger = LogManager.getLogger();

	private PreparedStatement preparedStatement;

	private String dbTableName;

	private List<CollectionExportMapping<STATE,CONFIG, TRANSFORM>> collectionMappingList = new ArrayList<>();

	public CdmDbExportMapping(String tableName){

		this.dbTableName = tableName;

	}

	public boolean initialize(STATE state) throws SQLException{

		CONFIG config = state.getConfig();

		Source db = config.getDestination();

		try {

			IndexCounter index;

			String strPreparedStatement = prepareStatement();

			logger.debug(strPreparedStatement);

			this.preparedStatement = db.getConnection().prepareStatement(strPreparedStatement);

			index = new IndexCounter(1);

			for (CdmMapperBase mapper : this.mapperList){

				if (mapper instanceof IDbExportMapper){

					IDbExportMapper<DbExportStateBase<?,TRANSFORM>,TRANSFORM> dbMapper = (IDbExportMapper)mapper;

					dbMapper.initialize(preparedStatement, index, state, dbTableName);

				}else{

					logger.warn("mapper "+mapper.toString() + "," + mapper.getClass().getName() +" is not of type " + IDbExportMapper.class.getSimpleName());

				}

			}

			for (CollectionExportMapping<STATE,CONFIG, TRANSFORM> collectionMapping : this.collectionMappingList ){

				collectionMapping.initialize(state);

			}

			return true;

		} catch (SQLException e) {

			logger.warn("SQL Exception");

			throw e;

		}

	}

	public boolean invoke(CdmBase cdmBase){

		try {

			boolean result = true;

			for (CdmMapperBase mapper : this.mapperList){

				if (mapper instanceof ObjectChangeMapper){

					ObjectChangeMapper changeMapper = (ObjectChangeMapper)mapper;

					cdmBase = changeMapper.getNewObject(cdmBase);

				}else if (mapper instanceof IDbExportMapper){

					IDbExportMapper<DbExportStateBase<?,TRANSFORM>, TRANSFORM> dbMapper = (IDbExportMapper)mapper;

					try {

						result &= dbMapper.invoke(cdmBase);

					} catch (Exception e) {

						result = false;

						logger.error("Error occurred in mapping.invoke");

						e.printStackTrace();

						continue;

					}

				}else {

					logger.warn("mapper " + mapper.toString() + "is not of required type " + IDbExportMapper.class.getSimpleName());

				}

			}

			int count = preparedStatement.executeUpdate();

			if (logger.isDebugEnabled()) {

                logger.debug("Number of rows affected: " + count);

            }

			for (CollectionExportMapping<STATE,CONFIG, TRANSFORM> collectionMapping : this.collectionMappingList ){

				result &= collectionMapping.invoke(cdmBase);

			}

			return result;

		} catch(Exception e){

			e.printStackTrace();

			logger.error(e.getMessage() + ": " + cdmBase.toString());

			return false;

		}

	}

	public void addCollectionMapping(CollectionExportMapping<STATE,CONFIG, TRANSFORM> collectionMapping){

		this.collectionMappingList.add(collectionMapping);

	}

	protected String prepareStatement(){

		String sqlInsert = "INSERT INTO " + getDbTableName() + " (";

		String sqlValues = ") VALUES(";

		String sqlEnd = ")";

		String attributes = "";

		String values = "";

		for (String attribute : this.getDestinationAttributeList()){

			attributes +=  "," + attribute;

			values += ",?";

		}

		attributes = attributes.substring(1); //delete first ','

		values = values.substring(1); //delete first ','

		String result = sqlInsert + attributes + sqlValues + values + sqlEnd;

		return result;

	}

	public String getDbTableName() {

		return dbTableName;

	}

	public void setDbTableName(String dbTableName) {

		this.dbTableName = dbTableName;

	}

	protected PreparedStatement getPreparedStatement() {

		return preparedStatement;

	}

	protected void setPreparedStatement(PreparedStatement preparedStatement) {

		this.preparedStatement = preparedStatement;

	}

//	protected List<CdmAttributeMapperBase> getAttributeMapperList(){

//		List<CdmAttributeMapperBase> list = this.mapperList;

//		return list;

//	}

}