AggregatorDAO.java

/*
*
* Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved.
*
* This file is part of Entando software. 
* Entando is a free software; 
* You can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation; version 2.
* 
* See the file License for the specific language governing permissions   
* and limitations under the License
* 
* 
* 
* Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved.
*
*/
package com.agiletec.plugins.jprssaggregator.aps.system.services.aggregator;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import com.agiletec.aps.system.common.AbstractDAO;
import com.agiletec.aps.util.ApsProperties;

/**
 * This class is the Data Access Object for the ApsAggregatorItem Object
 */
public class AggregatorDAO extends AbstractDAO implements IAggregatorDAO {

	@Override
	public void addItem(ApsAggregatorItem item) {
		Connection conn = null;
		PreparedStatement stat = null;
		try {
			conn = this.getConnection();
			conn.setAutoCommit(false);
			stat = conn.prepareStatement(ADD_ITEM);
			stat.setInt(1, item.getCode());
			stat.setString(2, item.getContentType());
			stat.setString(3, item.getDescr());
			stat.setString(4, item.getLink());
			stat.setLong(5, item.getDelay());
			stat.setTimestamp(6, new Timestamp(item.getLastUpdate().getTime()));
			if (null != item.getCategories() && item.getCategories().size() > 0) {
				stat.setString(7, item.getCategories().toXml());
			} else {
				stat.setNull(7, Types.VARCHAR);
			}
			stat.executeUpdate();
			conn.commit();
		} catch (Throwable t) {
			processDaoException(t, "Error inserting a new ApsAggregatorItem", "addItem");
		} finally {
			closeDaoResources(null, stat, conn);
		}
	}
	
	@Override
	public ApsAggregatorItem getItem(int code) {
		Connection conn = null;
		ApsAggregatorItem item = null;
		PreparedStatement stat = null;
		ResultSet res = null;
		try {
			conn = this.getConnection();
			stat = conn.prepareStatement(LOAD_AGGREGATOR_ITEM);
			stat.setInt(1, code);
			res = stat.executeQuery();
			item = this.createItemFromRecord(res);
		} catch (Throwable t) {
			processDaoException(t, "Error getting the ApsAggregatorItem with code: " + code, "getItem");
		} finally {
			closeDaoResources(res, stat, conn);
		}
		return item;
	}

	@Override
	public void deleteItem(int code) {
		Connection conn = null;
		PreparedStatement stat = null;
		try {
			conn = this.getConnection();
			conn.setAutoCommit(false);
			stat = conn.prepareStatement(DELETE_ITEM);
			stat.setInt(1, code);
			stat.executeUpdate();
			conn.commit();
		} catch (Throwable t) {
			this.executeRollback(conn);
			processDaoException(t, "Error removing the ApsAggregatorItem with code: " + code, "deleteItem");
		} finally {
			closeDaoResources(null, stat, conn);
		}
	}

	@Override
	public List<ApsAggregatorItem> getItems() {
		Connection conn = null;
		List<ApsAggregatorItem> items = new ArrayList<ApsAggregatorItem>();
		Statement stat = null;
		ResultSet res = null;
		try {
			conn = this.getConnection();
			stat = conn.createStatement();
			res = stat.executeQuery(LOAD_AGGREGATOR_ITEMS);
			items = this.loadItems(res);
		} catch (Throwable t) {
			processDaoException(t, "Errore in caricamento lista items", "getItems");
		} finally {
			closeDaoResources(res, stat, conn);
		}
		return items;
	}

	@Override
	public void update(ApsAggregatorItem item) {
		Connection conn = null;
		PreparedStatement stat = null;
		try {
			conn = this.getConnection();
			conn.setAutoCommit(false);
			stat = conn.prepareStatement(UPDATE_ITEM);
			stat.setString(1, item.getDescr());
			stat.setString(2, item.getLink());
			stat.setLong(3, item.getDelay());
			stat.setTimestamp(4, new Timestamp(item.getLastUpdate().getTime()));
			if (null != item.getCategories() && item.getCategories().size() > 0) {
				stat.setString(5, item.getCategories().toXml());
			} else {
				stat.setNull(5, Types.VARCHAR);
			}
			stat.setInt(6, item.getCode());
			stat.executeUpdate();
			conn.commit();
		} catch (Throwable t) {
			this.executeRollback(conn);
			processDaoException(t, "Errore in aggiornamento item", "updateItem");
		} finally {
			closeDaoResources(null, stat, conn);
		}
	}

	protected ApsAggregatorItem createItemFromRecord(ResultSet res) throws SQLException, IOException {
		ApsAggregatorItem item = null;
		if (res.next()) {
			item = new ApsAggregatorItem();
			item.setCode(res.getInt("code"));
			item.setDescr(res.getString("descr"));
			item.setLink(res.getString("link"));
			item.setDelay(res.getInt("delay"));
			Date lastUpdate = new Date(res.getTimestamp("lastupdate").getTime());
			item.setLastUpdate(lastUpdate);
			item.setContentType(res.getString("contenttype"));
			String cat = res.getString("categories");
			if (null != cat && cat.trim().length() > 0) {
				ApsProperties categories = new ApsProperties();
				categories.loadFromXml(cat);
				item.setCategories(categories);
			}
		}
		return item;
	}

	protected List<ApsAggregatorItem> loadItems(ResultSet res) throws SQLException, IOException {
		List<ApsAggregatorItem> items = new ArrayList<ApsAggregatorItem>();
		ApsAggregatorItem item = null;
		while (res.next()) {
			item = new ApsAggregatorItem();
			item.setCode(res.getInt("code"));
			item.setDescr(res.getString("descr"));
			item.setLink(res.getString("link"));
			item.setDelay(res.getInt("delay"));
			item.setContentType(res.getString("contenttype"));
			Date lastUpdate = new Date(res.getTimestamp("lastupdate").getTime());
			item.setLastUpdate(lastUpdate);
			String cat = res.getString("categories");
			if (null != cat && cat.trim().length() > 0) {
				ApsProperties categories = new ApsProperties();
				categories.loadFromXml(cat);
				item.setCategories(categories);
			}
			items.add(item);
		}
		return items;
	}

	protected static final String ADD_ITEM = 
		"INSERT INTO jprssaggregator_aggregatoritems (code, contenttype, descr, link, delay, lastupdate, categories) VALUES (?, ?, ?, ?, ?, ?, ?)";
	
	protected static final String LOAD_AGGREGATOR_ITEM = 
		"SELECT code, contenttype, descr, link, delay, lastupdate, categories FROM jprssaggregator_aggregatoritems WHERE code = ?";
	
	protected static final String DELETE_ITEM = 
		"DELETE FROM jprssaggregator_aggregatoritems WHERE code = ?";


	protected static final String LOAD_AGGREGATOR_ITEMS = 
		"SELECT code, contenttype, descr, link, delay, lastupdate, categories FROM jprssaggregator_aggregatoritems";

	protected static final String UPDATE_ITEM = 
		"UPDATE jprssaggregator_aggregatoritems SET descr = ?, link = ?, delay = ?, lastupdate = ?, categories = ? WHERE code = ?";
}