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.pesi.faunaEuropaea;

import java.sql.ResultSet;

import java.sql.ResultSetMetaData;

import java.sql.SQLException;

import java.util.HashMap;

import java.util.Map;

import java.util.UUID;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import org.apache.log4j.Logger;

import org.springframework.transaction.TransactionStatus;

import eu.etaxonomy.cdm.common.CdmUtils;

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

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

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

import eu.etaxonomy.cdm.model.reference.Reference;

import eu.etaxonomy.cdm.model.taxon.Classification;

/**

 * @author a.babadshanjan

 * @created 11.05.2009

 * @version 1.0

 */

public abstract class FaunaEuropaeaImportBase extends CdmImportBase<FaunaEuropaeaImportConfigurator, FaunaEuropaeaImportState>

implements ICdmImport<FaunaEuropaeaImportConfigurator,FaunaEuropaeaImportState> {

	private static final Logger logger = Logger.getLogger(FaunaEuropaeaImportBase.class);

//	/* Max number of taxa to retrieve (for test purposes) */

//	protected static final int maxTaxa = 1000;

//	/* Max number of taxa to be saved with one service call */

//	protected int limit = 20000; // TODO: Make configurable

//	/* Interval for progress info message when retrieving taxa */

//	protected static final int modCount = 10000;

//	/* Highest taxon index in the FauEu database */

//	protected int highestTaxonIndex = 0;

	protected boolean resultSetHasColumn(ResultSet rs, String columnName){

		try {

			ResultSetMetaData metaData = rs.getMetaData();

			for (int i = 0; i < metaData.getColumnCount(); i++){

				if (metaData.getColumnName(i + 1).equalsIgnoreCase(columnName)){

					return true;

				}

			}

			return false;

		} catch (SQLException e) {

            logger.warn("Exception in resultSetHasColumn");

            return false;

		}

	}

	protected boolean checkSqlServerColumnExists(Source source, String tableName, String columnName){

		String strQuery = "SELECT  Count(t.id) as n " +

				" FROM sysobjects AS t " +

				" INNER JOIN syscolumns AS c ON t.id = c.id " +

				" WHERE (t.xtype = 'U') AND " +

				" (t.name = '" + tableName + "') AND " +

				" (c.name = '" + columnName + "')";

		ResultSet rs = source.getResultSet(strQuery) ;

		int n;

		try {

			rs.next();

			n = rs.getInt("n");

			return n>0;

		} catch (SQLException e) {

			e.printStackTrace();

			return false;

		}

	}

	/**

	 * Returns a map that holds all values of a ResultSet. This is needed if a value needs to

	 * be accessed twice

	 * @param rs

	 * @return

	 * @throws SQLException

	 */

	protected Map<String, Object> getValueMap(ResultSet rs) throws SQLException{

		try{

			Map<String, Object> valueMap = new HashMap<String, Object>();

			int colCount = rs.getMetaData().getColumnCount();

			for (int c = 0; c < colCount ; c++){

				Object value = rs.getObject(c+1);

				String label = rs.getMetaData().getColumnLabel(c+1).toLowerCase();

				if (value != null && ! CdmUtils.Nz(value.toString()).trim().equals("")){

					valueMap.put(label, value);

				}

			}

			return valueMap;

		}catch(SQLException e){

			throw e;

		}

	}

	/**

	 * @param state

	 * @param sourceRef

	 */

	protected Classification getClassificationFor(FaunaEuropaeaImportState state, Reference<?> sourceRef) {

		Classification tree;

		UUID treeUuid = state.getTreeUuid(sourceRef);

		if (treeUuid == null){

			if(logger.isInfoEnabled()) { logger.info(".. creating new classification"); }

			TransactionStatus txStatus = startTransaction();

			tree = makeTreeMemSave(state, sourceRef);

			commitTransaction(txStatus);

		} else {

			tree = getClassificationService().find(treeUuid);

		}

		return tree;

	}

	/**

	 * Returns whether a regular expression is found in a given target string.

	 * @param regEx

	 * @param targetString

	 * @return

	 */

	protected static boolean expressionMatches(String regEx, String targetString) {

		Matcher matcher = createMatcher(regEx, targetString);

		if (matcher == null) {

            return false;

        }

		if (matcher.find()) {

			return true;

		} else {

			return false;

		}

	}

	protected static int expressionEnd(String regEx, String targetString){

		Matcher matcher = createMatcher(regEx, targetString);

		if (matcher == null) {

            return -1;

        }

		if (matcher.find()){

			return matcher.end();

		} else {

            return -1;

        }

	}

	private static Matcher createMatcher (String regEx, String targetString){

		if (targetString == null) {

			return null;

		}

		Pattern pattern = Pattern.compile(regEx);

		Matcher matcher = pattern.matcher(targetString);

		return matcher;

	}

}