com.jaeksoft.searchlib.crawler.database.DatabaseFieldMap Maven / Gradle / Ivy

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/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2010-2013 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer 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, or
 *  (at your option) any later version.
 *
 * OpenSearchServer 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 OpenSearchServer. 
 *  If not, see .
 **/

package com.jaeksoft.searchlib.crawler.database;

import java.io.IOException;
import java.net.URISyntaxException;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Set;

import org.w3c.dom.Node;
import org.xml.sax.SAXException;

import com.jaeksoft.searchlib.SearchLibException;
import com.jaeksoft.searchlib.crawler.FieldMapContext;
import com.jaeksoft.searchlib.crawler.FieldMapGeneric;
import com.jaeksoft.searchlib.crawler.common.database.CommonFieldTarget;
import com.jaeksoft.searchlib.function.expression.SyntaxError;
import com.jaeksoft.searchlib.index.IndexDocument;
import com.jaeksoft.searchlib.query.ParseException;
import com.jaeksoft.searchlib.util.XmlWriter;
import com.jaeksoft.searchlib.util.map.GenericLink;
import com.jaeksoft.searchlib.util.map.SourceField;

public class DatabaseFieldMap extends
		FieldMapGeneric {

	@Override
	protected CommonFieldTarget loadTarget(String targetName, Node node) {
		return new CommonFieldTarget(targetName, node);
	}

	@Override
	protected SourceField loadSource(String source) {
		return new SourceField(source);
	}

	@Override
	protected void writeTarget(XmlWriter xmlWriter, CommonFieldTarget target)
			throws SAXException {
		target.writeXml(xmlWriter);
	}

	public boolean isUrl() {
		for (GenericLink link : getList()) {
			CommonFieldTarget dfTarget = link.getTarget();
			if (dfTarget.isCrawlUrl())
				return true;
		}
		return false;
	}

	final public void mapResultSet(FieldMapContext context,
			ResultSet resultSet, Set columns, IndexDocument target,
			Set filePathSet) throws SQLException,
			InstantiationException, IllegalAccessException,
			ClassNotFoundException, SearchLibException, ParseException,
			IOException, SyntaxError, URISyntaxException, InterruptedException {
		for (GenericLink link : getList()) {
			String columnName = link.getSource().getUniqueName();
			if (!columns.contains(columnName))
				continue;
			String content = resultSet.getString(columnName);
			if (content == null)
				continue;
			mapFieldTarget(context, link.getTarget(), content, target,
					filePathSet);
		}
	}

}