package eu.dnetlib.usagestats.repos;

import com.fasterxml.jackson.databind.ObjectMapper;

import eu.dnetlib.usagestats.portal.RepositoryStats;
import eu.dnetlib.usagestats.portal.UsageStats;
import eu.dnetlib.usagestats.sushilite.ItemIdentifier;
import eu.dnetlib.usagestats.sushilite.ItemPerformance;
import eu.dnetlib.usagestats.sushilite.ReportItem;

import org.apache.commons.dbutils.DbUtils;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.HashOperations;

import javax.annotation.PostConstruct;
import javax.sql.DataSource;

import java.security.MessageDigest;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;


public class BaseRepository {
    @Autowired
    private DataSourceBean dataSourceBean;

    private DataSource usageStatsDB;

    @Autowired
    private SpringRedisConfiguration springRedisConfiguration;

    //private RedisTemplate redisTemplate;

    private HashOperations<String, String, String> jedis;

    private final Logger log = Logger.getLogger(this.getClass());

    @PostConstruct
    public void initDB() {
        usageStatsDB = dataSourceBean.getDataSource();
        //redisTemplate = springRedisConfiguration.redisTemplate();
        //jedis = redisTemplate.opsForHash();
        jedis = springRedisConfiguration.redisTemplate().opsForHash();
    }

    /*
    private static Object fromString( String s ) throws Exception {
        byte [] data = Base64.getDecoder().decode( s );
        ObjectInputStream ois = new ObjectInputStream(
                new ByteArrayInputStream(  data ) );
        Object o  = ois.readObject();
        ois.close();
        return o;
    }

    private static String toString( Serializable o ) throws Exception {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream( baos );
        oos.writeObject( o );
        oos.close();
        return Base64.getEncoder().encodeToString(baos.toByteArray());
    }
    */

    private static String MD5(String string) throws java.security.NoSuchAlgorithmException {
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(string.getBytes());

        byte byteData[] = md.digest();
        StringBuilder sb = new StringBuilder();
        for (byte aByteData : byteData) {
            sb.append(Integer.toString((aByteData & 0xff) + 0x100, 16).substring(1));
        }

        return sb.toString();
    }

    private static String toJson(Object o) throws com.fasterxml.jackson.core.JsonProcessingException {
        ObjectMapper objectMapper = new ObjectMapper();
        return objectMapper.writeValueAsString(o);
    }

    private static UsageStats fromJson(String string) throws java.io.IOException {
        ObjectMapper objectMapper = new ObjectMapper();
        return objectMapper.readValue(string, UsageStats.class);
    }

    /*
    private static List<ReportItem> reportItemsFromJson(String string) throws Exception {
        ObjectMapper objectMapper = new ObjectMapper();
        return objectMapper.readValue(string, objectMapper.getTypeFactory().constructCollectionType(List.class, ReportItem.class));
    }
    */

    UsageStats executeUsageStats(String query, List<String> values, String type) {
        //HashOperations jedis = redisTemplate.opsForHash();

        UsageStats usageStats = new UsageStats();
        int total_views = 0;
        int total_downloads = 0;
        int page_views = 0;
        int openaire_downloads = 0;
        int openaire_views = 0;
        Connection connection = null;
        PreparedStatement st = null;
        ResultSet rs = null;
        try {
            connection = usageStatsDB.getConnection();
            st = connection.prepareStatement(query);
            int i = 1;
            for (String s : values) {
                st.setString(i, s);
                i++;
            }

            String redis_key = MD5(st.toString());

            String redis_result = jedis.get(redis_key, "result");
            if (redis_result != null) {
                return fromJson(redis_result);
            }
            /*
            if (jedis.hasKey(redis_key, "result")) {
                //usageStats = (UsageStats) fromString((String) jedis.get(redis_key, "result"));
                usageStats = fromJson(jedis.get(redis_key, "result"));
                return usageStats;
            }
            */

            rs = st.executeQuery();

            if (type.equals("result")) {
                while (rs.next()) {
                    if (rs.getString(1).equals("views") && rs.getString(4) != null && !rs.getString(4).equals("") && !rs.getString(4).equals("null")) {
                        usageStats.addViews(new RepositoryStats(rs.getString(3), rs.getString(2), rs.getString(4), rs.getString(5)));
                        total_views += Integer.parseInt(rs.getString(4));
                        openaire_views += Integer.parseInt(rs.getString(5));
                    } else if (rs.getString(1).equals("downloads") && rs.getString(4) != null && !rs.getString(4).equals("") && !rs.getString(4).equals("null")) {
                        usageStats.addDownloads(new RepositoryStats(rs.getString(3), rs.getString(2), rs.getString(4), "0"));
                        total_downloads += Integer.parseInt(rs.getString(4));
                        openaire_downloads += Integer.parseInt(rs.getString(5));
                    } else if (rs.getString(1).equals("pageviews") && rs.getString(4) != null && !rs.getString(4).equals("") && !rs.getString(4).equals("null")) {
                        page_views = Integer.parseInt(rs.getString(4));
                    }
                }
                usageStats.setTotal_views(Integer.toString(total_views));
                usageStats.setTotal_downloads(Integer.toString(total_downloads));
                usageStats.setPageViews(Integer.toString(page_views));
                usageStats.setTotal_openaire_views(Integer.toString(openaire_views));
                usageStats.setTotal_openaire_downloads(Integer.toString(openaire_downloads));
            } else if (type.equals("project") || type.equals("datasource")) {
                while (rs.next()) {
                    if (rs.getString(1).equals("views") && rs.getString(2) != null && !rs.getString(2).equals("") && !rs.getString(2).equals("null")) {
                        total_views += Integer.parseInt(rs.getString(2));
                        openaire_views += Integer.parseInt(rs.getString(3));
                    } else if (rs.getString(1).equals("downloads") && rs.getString(2) != null && !rs.getString(2).equals("") && !rs.getString(2).equals("null")) {
                        total_downloads += Integer.parseInt(rs.getString(2));
                        openaire_downloads += Integer.parseInt(rs.getString(3));
                    } else if (rs.getString(1).equals("pageviews") && rs.getString(2) != null && !rs.getString(2).equals("") && !rs.getString(2).equals("null")) {
                        page_views = Integer.parseInt(rs.getString(2));
                    }
                    /*
                    else if (rs.getString(1).equals("openaire") && rs.getString(2) != null && !rs.getString(2).equals("") && !rs.getString(2).equals("null")) {
                        openaire = Integer.parseInt(rs.getString(2));
                    }
                    */

                }
                usageStats.setTotal_views(Integer.toString(total_views));
                usageStats.setTotal_downloads(Integer.toString(total_downloads));
                usageStats.setPageViews(Integer.toString(page_views));
                usageStats.setTotal_openaire_views(Integer.toString(openaire_views));
                usageStats.setTotal_openaire_downloads(Integer.toString(openaire_downloads));
            }

            jedis.put(redis_key, "persistent", "false");
            jedis.put(redis_key, "query", st.toString());
            //jedis.put(redis_key, "result", toString(usageStats));
            jedis.put(redis_key, "result", toJson(usageStats));
            jedis.put(redis_key, "fetchMode", "3");

        } catch (Exception e) {
            log.error("Cannot execute query2 : ", e);

        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
        return usageStats;
    }

    protected String executeRepoId(String repositoryIdentifier, String report) {
        PreparedStatement st = null;
        Connection connection = null;
        ResultSet rs = null;
        try {
            connection = usageStatsDB.getConnection();
            String[] split = repositoryIdentifier.split(":");
            String openaire_id = "-1";
            switch (split[0].toLowerCase()) {
                case "openaire":
                    if(!report.equals("jr1")) {
                        st = connection.prepareStatement("select id from datasource where id=?");
                        st.setString(1, repositoryIdentifier.replaceFirst(split[0] + ":", ""));
                    } else {
                        st = connection.prepareStatement("select id from datasource where id=? AND (type='Journal' OR type='Journal Aggregator/Publisher')");
                        st.setString(1, repositoryIdentifier.replaceFirst(split[0] + ":", ""));
                    }

                    rs = st.executeQuery();
                    while (rs.next()) {
                        openaire_id = rs.getString(1);
                    }
                    return openaire_id;

                case "opendoar":
                    if(!report.equals("jr1")) {
                        st = connection.prepareStatement("select id from datasource_oids where orid=?");
                        st.setString(1, "opendoar____::" + repositoryIdentifier.replaceFirst(split[0] + ":", ""));
                    } else {
                        st = connection.prepareStatement("select distinct d.id from datasource d, datasource_oids di where di.orid=? and d.id=di.id and (type='Journal' OR type='Journal Aggregator/Publisher')");
                        st.setString(1, "opendoar____::" + repositoryIdentifier.replaceFirst(split[0] + ":", ""));
                    }

                    rs = st.executeQuery();
                    while (rs.next()) {
                        openaire_id = rs.getString(1);
                    }
                    return openaire_id;
                case "issn":
                    st = connection.prepareStatement("select distinct d.id from datasource d, datasource_oids di, datasource_results dr where d.id=dr.id and di.orid like ? and d.id=di.id and (type='Journal' OR type='Journal Aggregator/Publisher')");
                    st.setString(1, "%" + repositoryIdentifier.replaceFirst(split[0] + ":", "") + "%");

                    rs = st.executeQuery();
                    while (rs.next()) {
                        openaire_id = rs.getString(1);
                    }
                    return openaire_id;
                default:
                    return "-1";
            }
        } catch (Exception e) {
            log.error("Repository id failed: ", e);
        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
        return "-1";
    }

    protected void executeItem(List<ReportItem> reportItems, String itemIdentifier, String repositoryIdentifier, String itemDataType, Date beginDate, Date endDate, String granularity) {
        String[] split = itemIdentifier.split(":");
        switch (split[0].toLowerCase()) {
            case "oid":
                executeOid(reportItems, itemIdentifier.replaceFirst(split[0] + ":", ""), repositoryIdentifier, itemDataType, beginDate, endDate, granularity);
                break;
            case "doi":
                executeDoi(reportItems, itemIdentifier.replaceFirst(split[0] + ":", ""), repositoryIdentifier, itemDataType, beginDate, endDate, granularity);
                break;
            case "openaire":
                executeOpenaire(reportItems, itemIdentifier.replaceFirst(split[0] + ":", ""), repositoryIdentifier, itemDataType, beginDate, endDate, granularity);
                break;
            default:
        }
    }

    private void executeOid(List<ReportItem> reportItems, String oid, String repositoryIdentifier, String itemDataType, Date beginDate, Date endDate, String granularity) {
        Connection connection = null;
        PreparedStatement st = null;
        ResultSet rs = null;
        try {
            connection = usageStatsDB.getConnection();
            st = connection.prepareStatement("SELECT DISTINCT roid.id FROM result_oids roid, downloads_stats s WHERE s.result_id=roid.id AND roid.orid=? UNION SELECT DISTINCT roid.id FROM result_oids roid, views_stats s WHERE s.result_id=roid.id AND roid.orid=?");
            st.setString(1, oid);
            st.setString(2, oid);

            rs = st.executeQuery();

            while (rs.next()) {
                executeOpenaire(reportItems, rs.getString(1), repositoryIdentifier, itemDataType, beginDate, endDate, granularity);
            }
            connection.close();
        } catch (Exception e) {
            log.error("Oid to OpenAIRE id failed: ", e);
        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
    }

    private void executeDoi(List<ReportItem> reportItems, String doi, String repositoryIdentifier, String itemDataType, Date beginDate, Date endDate, String granularity) {
        Connection connection = null;
        PreparedStatement st = null;
        ResultSet rs = null;
        try {
            connection = usageStatsDB.getConnection();
            st = connection.prepareStatement("SELECT DISTINCT poid.id FROM result_pids poid, downloads_stats s WHERE s.result_id=poid.id AND poid.type='doi' AND poid.pid=? UNION SELECT DISTINCT poid.id FROM result_pids poid, views_stats s WHERE s.result_id=poid.id AND poid.type='doi' AND poid.pid=?");
            st.setString(1, doi);
            st.setString(2, doi);

            rs = st.executeQuery();

            while (rs.next()) {
                executeOpenaire(reportItems, rs.getString(1), repositoryIdentifier, itemDataType, beginDate, endDate, granularity);
            }
        } catch (Exception e) {
            log.error("Doi to OpenAIRE id failed: ", e);
        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
    }

    private void executeOpenaire(List<ReportItem> reportItems, String openaire, String repositoryIdentifier, String itemDataType, Date beginDate, Date endDate, String granularity) {
        SimpleDateFormat report_dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        SimpleDateFormat postgresFormat = new SimpleDateFormat("yyyy/MM");
        String beginDateStr = postgresFormat.format(beginDate);
        String endDateStr = postgresFormat.format(endDate);

        Connection connection = null;
        PreparedStatement st = null;
        ResultSet rs = null;

        /*
        Calendar startCalendar = Calendar.getInstance();
        startCalendar.setTime(beginDate);
        Calendar endCalendar = Calendar.getInstance();
        endCalendar.setTime(endDate);
        int diffYear = endCalendar.get(Calendar.YEAR) - startCalendar.get(Calendar.YEAR);
        int diffMonth = diffYear * 12 + endCalendar.get(Calendar.MONTH) - startCalendar.get(Calendar.MONTH);
        */

        try {
            connection = usageStatsDB.getConnection();
            if (repositoryIdentifier.equals("")) {
                if (itemDataType.equals("")) {
                    st = connection.prepareStatement("SELECT res.repository_id, r.title, r.publisher, r.source, rc.type, pids.pid, d.name, res.ddate, oids.orid, res.downloads, res.views FROM (SELECT coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.result_id, vs.result_id) AS result_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? GROUP BY s.repository_id, s.result_id, s.date) AS ds FULL OUTER JOIN (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? GROUP BY s.repository_id, s.result_id, s.date) AS vs ON ds.result_id=vs.result_id AND ds.date=vs.date) AS res JOIN result r ON res.result_id=r.id JOIN datasource d ON d.id=res.repository_id JOIN result_classifications rc ON rc.id=r.id LEFT JOIN (SELECT pids.id, string_agg(pids.pid, '#!#') AS pid FROM result_pids pids WHERE pids.id=? AND type='doi' GROUP BY pids.id) AS pids ON pids.id=r.id LEFT JOIN (SELECT oids.id, string_agg(oids.orid, '#!#') AS orid FROM result_oids oids WHERE oids.id=? GROUP BY oids.id) AS oids ON oids.id=r.id ORDER BY res.repository_id, res.ddate;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, openaire);
                    st.setString(4, beginDateStr);
                    st.setString(5, endDateStr);
                    st.setString(6, openaire);
                    st.setString(7, openaire);
                    st.setString(8, openaire);
                } else {
                    st = connection.prepareStatement("SELECT res.repository_id, r.title, r.publisher, r.source, rc.type, pids.pid, d.name, res.ddate, oids.orid, res.downloads, res.views FROM (SELECT coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.result_id, vs.result_id) AS result_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? GROUP BY s.repository_id, s.result_id, s.date) AS ds FULL OUTER JOIN (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? GROUP BY s.repository_id, s.result_id, s.date) AS vs ON ds.result_id=vs.result_id AND ds.date=vs.date) AS res JOIN result r ON res.result_id=r.id JOIN datasource d ON d.id=res.repository_id JOIN result_classifications rc ON rc.id=r.id AND rc.type=? LEFT JOIN (SELECT pids.id, string_agg(pids.pid, '#!#') AS pid FROM result_pids pids WHERE pids.id=? AND type='doi' GROUP BY pids.id) AS pids ON pids.id=r.id LEFT JOIN (SELECT oids.id, string_agg(oids.orid, '#!#') AS orid FROM result_oids oids WHERE oids.id=? GROUP BY oids.id) AS oids ON oids.id=r.id ORDER BY res.repository_id, res.ddate;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, openaire);
                    st.setString(4, beginDateStr);
                    st.setString(5, endDateStr);
                    st.setString(6, openaire);
                    st.setString(7, itemDataType);
                    st.setString(8, openaire);
                    st.setString(9, openaire);
                }
            } else {
                if (itemDataType.equals("")) {
                    st = connection.prepareStatement("SELECT res.repository_id, r.title, r.publisher, r.source, rc.type, pids.pid, d.name, res.ddate, oids.orid, res.downloads, res.views FROM (SELECT coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.result_id, vs.result_id) AS result_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS ds FULL OUTER JOIN (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS vs ON ds.result_id=vs.result_id AND ds.date=vs.date) AS res JOIN result r ON res.result_id=r.id JOIN datasource d ON d.id=res.repository_id JOIN result_classifications rc ON rc.id=r.id LEFT JOIN (SELECT pids.id, string_agg(pids.pid, '#!#') AS pid FROM result_pids pids WHERE pids.id=? AND type='doi' GROUP BY pids.id) AS pids ON pids.id=r.id LEFT JOIN (SELECT oids.id, string_agg(oids.orid, '#!#') AS orid FROM result_oids oids WHERE oids.id=? GROUP BY oids.id) AS oids ON oids.id=r.id ORDER BY res.repository_id, res.ddate;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, openaire);
                    st.setString(4, repositoryIdentifier);
                    st.setString(5, beginDateStr);
                    st.setString(6, endDateStr);
                    st.setString(7, openaire);
                    st.setString(8, repositoryIdentifier);
                    st.setString(9, openaire);
                    st.setString(10, openaire);
                } else {
                    st = connection.prepareStatement("SELECT res.repository_id, r.title, r.publisher, r.source, rc.type, pids.pid, d.name, res.ddate, oids.orid, res.downloads, res.views FROM (SELECT coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.result_id, vs.result_id) AS result_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS ds FULL OUTER JOIN (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.result_id=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS vs ON ds.result_id=vs.result_id AND ds.date=vs.date) AS res JOIN result r ON res.result_id=r.id JOIN datasource d ON d.id=res.repository_id JOIN result_classifications rc ON rc.id=r.id AND rc.type=? LEFT JOIN (SELECT pids.id, string_agg(pids.pid, '#!#') AS pid FROM result_pids pids WHERE pids.id=? AND type='doi' GROUP BY pids.id) AS pids ON pids.id=r.id LEFT JOIN (SELECT oids.id, string_agg(oids.orid, '#!#') AS orid FROM result_oids oids WHERE oids.id=? GROUP BY oids.id) AS oids ON oids.id=r.id ORDER BY res.repository_id, res.ddate;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, openaire);
                    st.setString(4, repositoryIdentifier);
                    st.setString(5, beginDateStr);
                    st.setString(6, endDateStr);
                    st.setString(7, openaire);
                    st.setString(8, repositoryIdentifier);
                    st.setString(9, itemDataType);
                    st.setString(10, openaire);
                    st.setString(11, openaire);
                }
            }

            rs = st.executeQuery();
            String repository = "";
            String lastDate = "";
            ReportItem reportItem = null;
            int ft_total = 0;
            int abstr = 0;

            if (granularity.equalsIgnoreCase("totals")) {
                while (rs.next()) {
                    if (!rs.getString(1).equals(repository)) {
                        if (reportItem != null) {
                            reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                            reportItems.add(reportItem);
                        }
                        repository = rs.getString(1);
                        reportItem = new ReportItem(rs.getString(3), rs.getString(7), rs.getString(5), rs.getString(2));
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", openaire));
                        reportItem.addIdentifier(new ItemIdentifier("URLs", rs.getString(4)));
                        if (rs.getString(9) != null && !rs.getString(9).equals("")) {
                            if (rs.getString(9).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9).substring(0, rs.getString(9).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9)));
                            }
                        }
                        if (rs.getString(6) != null && !rs.getString(6).equals("")) {
                            if (rs.getString(6).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6).substring(0, rs.getString(6).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6)));
                            }
                        }
                        ft_total = 0;
                        abstr = 0;
                    }
                    ft_total += rs.getInt(10);
                    abstr += rs.getInt(11);
                }
                if (reportItem != null) {
                    reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                    reportItems.add(reportItem);
                }
            } else if (granularity.equalsIgnoreCase("monthly")) {
                Calendar endCal = Calendar.getInstance();
                endCal.setTime(postgresFormat.parse(endDateStr));
                endCal.add(Calendar.MONTH, 1);
                Date endDateForZeros = endCal.getTime();
                while (rs.next()) {
                    if (!rs.getString(1).equals(repository)) {
                        if (reportItem != null) {
                            fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                            reportItems.add(reportItem);
                        }
                        repository = rs.getString(1);
                        lastDate = beginDateStr;
                        reportItem = new ReportItem(rs.getString(3), rs.getString(7), rs.getString(5), rs.getString(2));
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", openaire));
                        reportItem.addIdentifier(new ItemIdentifier("URLs", rs.getString(4)));
                        if (rs.getString(9) != null && !rs.getString(9).equals("")) {
                            if (rs.getString(9).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9).substring(0, rs.getString(9).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9)));
                            }
                        }
                        if (rs.getString(6) != null && !rs.getString(6).equals("")) {
                            if (rs.getString(6).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6).substring(0, rs.getString(6).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6)));
                            }
                        }
                    }
                    fillWithZeros(postgresFormat.parse(lastDate), postgresFormat.parse(rs.getString(8)), reportItem);
                    Calendar endC = Calendar.getInstance();
                    endC.setTime(postgresFormat.parse(rs.getString(8)));
                    endC.set(Calendar.DATE, endC.getActualMaximum(Calendar.DATE));
                    if (reportItem != null) {
                        reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(postgresFormat.parse(rs.getString(8))), report_dateFormat.format(endC.getTime()), rs.getString(10), rs.getString(11)));
                    }
                    endC.setTime(postgresFormat.parse(rs.getString(8)));
                    endC.add(Calendar.MONTH, 1);
                    lastDate = postgresFormat.format(endC.getTime());
                }
                if (reportItem != null) {
                    fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                    reportItems.add(reportItem);
                }
            }
        } catch (Exception e) {
            log.error("Single Item Report failed: ", e);
        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
    }
    protected void executeRepo(List<ReportItem> reportItems, String repositoryIdentifier, String itemDataType, Date beginDate, Date endDate, String granularity) {
        SimpleDateFormat report_dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        SimpleDateFormat postgresFormat = new SimpleDateFormat("yyyy/MM");
        String beginDateStr = postgresFormat.format(beginDate);
        String endDateStr = postgresFormat.format(endDate);

        Connection connection = null;
        PreparedStatement st = null;
        ResultSet rs = null;

        try {
            connection = usageStatsDB.getConnection();

            if (repositoryIdentifier.equals("")) {
                if (itemDataType.equals("")) {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE dois.orid LIKE 'opendoar%' ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, beginDateStr);
                    st.setString(4, endDateStr);
                } else {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE dois.orid LIKE 'opendoar%' ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, itemDataType);
                    st.setString(4, beginDateStr);
                    st.setString(5, endDateStr);
                    st.setString(6, itemDataType);
                }
            } else {
                if (itemDataType.equals("")) {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE dois.orid LIKE 'opendoar%' ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, repositoryIdentifier);
                    st.setString(4, beginDateStr);
                    st.setString(5, endDateStr);
                    st.setString(6, repositoryIdentifier);
                } else {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE dois.orid LIKE 'opendoar%' ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, itemDataType);
                    st.setString(4, repositoryIdentifier);
                    st.setString(5, beginDateStr);
                    st.setString(6, endDateStr);
                    st.setString(7, itemDataType);
                    st.setString(8, repositoryIdentifier);
                }
            }
            //log.error("RR STATEMENT:   " + st);

            /*
            String redis_key = MD5(st.toString());

            if (jedis.hasKey(redis_key, "result")) {
                reportItems.addAll(reportItemsFromJson((String) jedis.get(redis_key, "result")));
                st.close();
                connection.close();
                return;
            }
            */

            rs = st.executeQuery();
            String repository = "";
            String lastDate = "";
            ReportItem reportItem = null;

            /*
            Calendar startCalendar = Calendar.getInstance();
            startCalendar.setTime(beginDate);
            Calendar endCalendar = Calendar.getInstance();
            endCalendar.setTime(endDate);
            */

            int ft_total = 0;
            int abstr = 0;
            if (granularity.equalsIgnoreCase("totals")) {
                while (rs.next()) {
                    if (!rs.getString(1).equals(repository)) {
                        if (reportItem != null) {
                            reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                            reportItems.add(reportItem);
                        }
                        repository = rs.getString(1);
                        reportItem = new ReportItem(null, rs.getString(2), "Platform", null);
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", rs.getString(1)));
                        reportItem.addIdentifier(new ItemIdentifier("OpenDOAR", rs.getString(4).substring(rs.getString(4).lastIndexOf(":") + 1)));
                        reportItem.addIdentifier(new ItemIdentifier("URL", rs.getString(3)));
                        ft_total = 0;
                        abstr = 0;
                    }
                    ft_total += rs.getInt(6);
                    abstr += rs.getInt(7);
                }
                if (reportItem != null) {
                    reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                    reportItems.add(reportItem);
                }
            } else if (granularity.equalsIgnoreCase("monthly")) {
                Calendar endCal = Calendar.getInstance();
                endCal.setTime(postgresFormat.parse(endDateStr));
                endCal.add(Calendar.MONTH, 1);
                Date endDateForZeros = endCal.getTime();
                while (rs.next()) {
                    if (!rs.getString(1).equals(repository)) {
                        if (reportItem != null) {
                            fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                            reportItems.add(reportItem);
                        }
                        repository = rs.getString(1);
                        lastDate = beginDateStr;
                        reportItem = new ReportItem(null, rs.getString(2), "Platform", null);
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", rs.getString(1)));
                        reportItem.addIdentifier(new ItemIdentifier("OpenDOAR", rs.getString(4).substring(rs.getString(4).lastIndexOf(":") + 1)));
                        reportItem.addIdentifier(new ItemIdentifier("URL", rs.getString(3)));
                    }
                    fillWithZeros(postgresFormat.parse(lastDate), postgresFormat.parse(rs.getString(5)), reportItem);
                    Calendar endC = Calendar.getInstance();
                    endC.setTime(postgresFormat.parse(rs.getString(5)));
                    endC.set(Calendar.DATE, endC.getActualMaximum(Calendar.DATE));
                    if (reportItem != null) {
                        reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(postgresFormat.parse(rs.getString(5))), report_dateFormat.format(endC.getTime()), rs.getString(6), rs.getString(7)));
                    }
                    endC.setTime(postgresFormat.parse(rs.getString(5)));
                    endC.add(Calendar.MONTH, 1);
                    lastDate = postgresFormat.format(endC.getTime());
                }
                if (reportItem != null) {
                    fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                    reportItems.add(reportItem);
                }
            }

            /*
            jedis.put(redis_key, "persistent", "false");
            jedis.put(redis_key, "query", st.toString());
            jedis.put(redis_key, "result", toJson(reportItems));
            jedis.put(redis_key, "fetchMode", "3");
            */

            rs.close();
            st.close();
            connection.close();
        } catch (Exception e) {
            log.error("Repository Report failed: ", e);
        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
    }
    protected void executeJournal(List<ReportItem> reportItems, String repositoryIdentifier, String itemDataType, Date beginDate, Date endDate, String granularity) {
        SimpleDateFormat report_dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        SimpleDateFormat postgresFormat = new SimpleDateFormat("yyyy/MM");
        String beginDateStr = postgresFormat.format(beginDate);
        String endDateStr = postgresFormat.format(endDate);

        Connection connection = null;
        PreparedStatement st = null;
        ResultSet rs = null;

        try {
            connection = usageStatsDB.getConnection();

            if (repositoryIdentifier.equals("")) {
                if (itemDataType.equals("")) {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE (d.type='Journal' OR d.type='Journal Aggregator/Publisher') ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, beginDateStr);
                    st.setString(4, endDateStr);
                } else {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE (d.type='Journal' OR d.type='Journal Aggregator/Publisher') ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, itemDataType);
                    st.setString(4, beginDateStr);
                    st.setString(5, endDateStr);
                    st.setString(6, itemDataType);
                }
            } else {
                if (itemDataType.equals("")) {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE (d.type='Journal' OR d.type='Journal Aggregator/Publisher') ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, repositoryIdentifier);
                    st.setString(4, beginDateStr);
                    st.setString(5, endDateStr);
                    st.setString(6, repositoryIdentifier);
                } else {
                    st = connection.prepareStatement("SELECT d.id, d.name, d.websiteurl, dois.orid, res.ddate, res.downloads, res.views FROM (SELECT coalesce(ds.source, vs.source), coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM downloads_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS ds FULL OUTER JOIN (SELECT s.source, s.repository_id, s.date, sum(s.count) FROM views_stats s, result_classifications rc WHERE rc.id=s.result_id AND s.date>=? AND s.date<=? AND rc.type=? AND s.repository_id=? GROUP BY s.source, s.repository_id, s.date) AS vs ON ds.source=vs.source AND ds.repository_id=vs.repository_id AND ds.date=vs.date) AS res JOIN datasource d ON d.id=res.repository_id JOIN datasource_oids dois ON d.id=dois.id WHERE (d.type='Journal' OR d.type='Journal Aggregator/Publisher') ORDER BY d.id, d.name, res.ddate ASC;");
                    st.setString(1, beginDateStr);
                    st.setString(2, endDateStr);
                    st.setString(3, itemDataType);
                    st.setString(4, repositoryIdentifier);
                    st.setString(5, beginDateStr);
                    st.setString(6, endDateStr);
                    st.setString(7, itemDataType);
                    st.setString(8, repositoryIdentifier);
                }
            }
            //log.error("RR STATEMENT:   " + st);

            /*
            String redis_key = MD5(st.toString());

            if (jedis.hasKey(redis_key, "result")) {
                reportItems.addAll(reportItemsFromJson((String) jedis.get(redis_key, "result")));
                st.close();
                connection.close();
                return;
            }
            */

            rs = st.executeQuery();
            String repository = "";
            String lastDate = "";
            ReportItem reportItem = null;

            /*
            Calendar startCalendar = Calendar.getInstance();
            startCalendar.setTime(beginDate);
            Calendar endCalendar = Calendar.getInstance();
            endCalendar.setTime(endDate);
            */

            int ft_total = 0;
            int abstr = 0;
            if (granularity.equalsIgnoreCase("totals")) {
                while (rs.next()) {
                    if (!rs.getString(1).equals(repository)) {
                        if (reportItem != null) {
                            reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                            reportItems.add(reportItem);
                        }
                        repository = rs.getString(1);
                        reportItem = new ReportItem(null, rs.getString(2), "Platform", null);
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", rs.getString(1)));
                        reportItem.addIdentifier(new ItemIdentifier("ISSN", rs.getString(4).substring(rs.getString(4).lastIndexOf(":") + 1)));
                        if(rs.getString(3) != null) {
                            reportItem.addIdentifier(new ItemIdentifier("URL", rs.getString(3)));
                        }
                        ft_total = 0;
                        abstr = 0;
                    }
                    ft_total += rs.getInt(6);
                    abstr += rs.getInt(7);
                }
                if (reportItem != null) {
                    reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                    reportItems.add(reportItem);
                }
            } else if (granularity.equalsIgnoreCase("monthly")) {
                Calendar endCal = Calendar.getInstance();
                endCal.setTime(postgresFormat.parse(endDateStr));
                endCal.add(Calendar.MONTH, 1);
                Date endDateForZeros = endCal.getTime();
                while (rs.next()) {
                    if (!rs.getString(1).equals(repository)) {
                        if (reportItem != null) {
                            fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                            reportItems.add(reportItem);
                        }
                        repository = rs.getString(1);
                        lastDate = beginDateStr;
                        reportItem = new ReportItem(null, rs.getString(2), "Platform", null);
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", rs.getString(1)));
                        reportItem.addIdentifier(new ItemIdentifier("ISSN", rs.getString(4).substring(rs.getString(4).lastIndexOf(":") + 1)));
                        if(rs.getString(3) != null) {
                            reportItem.addIdentifier(new ItemIdentifier("URL", rs.getString(3)));
                        }
                    }
                    fillWithZeros(postgresFormat.parse(lastDate), postgresFormat.parse(rs.getString(5)), reportItem);
                    Calendar endC = Calendar.getInstance();
                    endC.setTime(postgresFormat.parse(rs.getString(5)));
                    endC.set(Calendar.DATE, endC.getActualMaximum(Calendar.DATE));
                    if (reportItem != null) {
                        reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(postgresFormat.parse(rs.getString(5))), report_dateFormat.format(endC.getTime()), rs.getString(6), rs.getString(7)));
                    }
                    endC.setTime(postgresFormat.parse(rs.getString(5)));
                    endC.add(Calendar.MONTH, 1);
                    lastDate = postgresFormat.format(endC.getTime());
                }
                if (reportItem != null) {
                    fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                    reportItems.add(reportItem);
                }
            }

            /*
            jedis.put(redis_key, "persistent", "false");
            jedis.put(redis_key, "query", st.toString());
            jedis.put(redis_key, "result", toJson(reportItems));
            jedis.put(redis_key, "fetchMode", "3");
            */

            rs.close();
            st.close();
            connection.close();
        } catch (Exception e) {
            log.error("Repository Report failed: ", e);
        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
    }

    protected void executeBatchItems(List<ReportItem> reportItems, String repositoryIdentifier, String itemDataType, Date beginDate, Date endDate, String granularity) {
        SimpleDateFormat report_dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        SimpleDateFormat postgresFormat = new SimpleDateFormat("yyyy/MM");
        String beginDateStr = postgresFormat.format(beginDate);
        String endDateStr = postgresFormat.format(endDate);

        Connection connection = null;
        PreparedStatement st = null;
        ResultSet rs = null;

        try {
            connection = usageStatsDB.getConnection();

            if (itemDataType.equals("")) {
                st = connection.prepareStatement("SELECT res.result_id, r.title, r.publisher, r.source, rc.type, pids.pid, d.name, res.ddate, oids.orid, res.downloads, res.views FROM (SELECT coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.result_id, vs.result_id) AS result_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS ds FULL OUTER JOIN (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS vs ON ds.result_id=vs.result_id AND ds.date=vs.date) AS res JOIN result r ON res.result_id=r.id JOIN datasource d ON d.id=res.repository_id JOIN result_classifications rc ON rc.id=r.id LEFT JOIN (SELECT pids.id, string_agg(pids.pid, '#!#') AS pid FROM result_pids pids, result_datasources rd WHERE rd.id=pids.id AND type='doi' AND rd.datasource=? GROUP BY pids.id) AS pids ON pids.id=r.id LEFT JOIN (SELECT oids.id, string_agg(oids.orid, '#!#') AS orid FROM result_oids oids, result_datasources rd WHERE rd.id=oids.id AND rd.datasource=? GROUP BY oids.id) AS oids ON oids.id=r.id ORDER BY res.result_id, res.ddate;");
                st.setString(1, beginDateStr);
                st.setString(2, endDateStr);
                st.setString(3, repositoryIdentifier);
                st.setString(4, beginDateStr);
                st.setString(5, endDateStr);
                st.setString(6, repositoryIdentifier);
                st.setString(7, repositoryIdentifier);
                st.setString(8, repositoryIdentifier);
            } else {
                st = connection.prepareStatement("SELECT res.result_id, r.title, r.publisher, r.source, rc.type, pids.pid, d.name, res.ddate, oids.orid, res.downloads, res.views FROM (SELECT coalesce(ds.repository_id, vs.repository_id) AS repository_id, coalesce(ds.result_id, vs.result_id) AS result_id, coalesce(ds.date, vs.date) AS ddate, coalesce(ds.sum, 0) AS downloads, coalesce(vs.sum,0) AS views FROM (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM downloads_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS ds FULL OUTER JOIN (SELECT s.repository_id, s.result_id, s.date, sum(s.count) FROM views_stats s WHERE s.date>=? AND s.date<=? AND s.repository_id=? GROUP BY s.repository_id, s.result_id, s.date) AS vs ON ds.result_id=vs.result_id AND ds.date=vs.date) AS res JOIN result r ON res.result_id=r.id JOIN datasource d ON d.id=res.repository_id JOIN result_classifications rc ON rc.id=r.id LEFT JOIN (SELECT pids.id, string_agg(pids.pid, '#!#') AS pid FROM result_pids pids, result_datasources rd WHERE rd.id=pids.id AND type='doi' AND rd.datasource=? GROUP BY pids.id) AS pids ON pids.id=r.id LEFT JOIN (SELECT oids.id, string_agg(oids.orid, '#!#') AS orid FROM result_oids oids, result_datasources rd WHERE rd.id=oids.id AND rd.datasource=? GROUP BY oids.id) AS oids ON oids.id=r.id WHERE rc.type=? ORDER BY res.result_id, res.ddate;");
                st.setString(1, beginDateStr);
                st.setString(2, endDateStr);
                st.setString(3, repositoryIdentifier);
                st.setString(4, beginDateStr);
                st.setString(5, endDateStr);
                st.setString(6, repositoryIdentifier);
                st.setString(7, repositoryIdentifier);
                st.setString(8, repositoryIdentifier);
                st.setString(9, itemDataType);
            }
            //log.error("IR STATEMENT:   " + st);

            /*
            String redis_key = MD5(st.toString());

            if (jedis.hasKey(redis_key, "result")) {
                reportItems.addAll(reportItemsFromJson((String) jedis.get(redis_key, "result")));
                st.close();
                connection.close();
                return;
            }
            */

            rs = st.executeQuery();
            String result = "";
            String lastDate = "";
            ReportItem reportItem = null;

            int ft_total = 0;
            int abstr = 0;
            if (granularity.equalsIgnoreCase("totals")) {
                while (rs.next()) {
                    if (!rs.getString(1).equals(result)) {
                        if (reportItem != null) {
                            reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                            reportItems.add(reportItem);
                        }
                        result = rs.getString(1);
                        reportItem = new ReportItem(rs.getString(3), rs.getString(7), rs.getString(5), rs.getString(2));
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", rs.getString(1)));
                        reportItem.addIdentifier(new ItemIdentifier("URLs", rs.getString(4)));
                        if (rs.getString(9) != null && !rs.getString(9).equals("")) {
                            if (rs.getString(9).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9).substring(0, rs.getString(9).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9)));
                            }
                        }
                        if (rs.getString(6) != null && !rs.getString(6).equals("")) {
                            if (rs.getString(6).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6).substring(0, rs.getString(6).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6)));
                            }
                        }
                        ft_total = 0;
                        abstr = 0;
                    }
                    ft_total += rs.getInt(10);
                    abstr += rs.getInt(11);
                }
                if (reportItem != null) {
                    reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(beginDate), report_dateFormat.format(endDate), Integer.toString(ft_total), Integer.toString(abstr)));
                    reportItems.add(reportItem);
                }
            } else if (granularity.equalsIgnoreCase("monthly")) {
                Calendar endCal = Calendar.getInstance();
                endCal.setTime(postgresFormat.parse(endDateStr));
                endCal.add(Calendar.MONTH, 1);
                Date endDateForZeros = endCal.getTime();
                while (rs.next()) {
                    if (!rs.getString(1).equals(result)) {
                        if (reportItem != null) {
                            fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                            reportItems.add(reportItem);
                        }
                        result = rs.getString(1);
                        lastDate = beginDateStr;
                        reportItem = new ReportItem(rs.getString(3), rs.getString(7), rs.getString(5), rs.getString(2));
                        reportItem.addIdentifier(new ItemIdentifier("OpenAIRE", rs.getString(1)));
                        reportItem.addIdentifier(new ItemIdentifier("URLs", rs.getString(4)));
                        if (rs.getString(9) != null && !rs.getString(9).equals("")) {
                            if (rs.getString(9).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9).substring(0, rs.getString(9).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("OAI", rs.getString(9)));
                            }
                        }
                        if (rs.getString(6) != null && !rs.getString(6).equals("")) {
                            if (rs.getString(6).contains("#!#")) {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6).substring(0, rs.getString(6).indexOf("#!#"))));
                            } else {
                                reportItem.addIdentifier(new ItemIdentifier("DOI", rs.getString(6)));
                            }
                        }
                    }
                    fillWithZeros(postgresFormat.parse(lastDate), postgresFormat.parse(rs.getString(8)), reportItem);
                    Calendar endC = Calendar.getInstance();
                    endC.setTime(postgresFormat.parse(rs.getString(8)));
                    endC.set(Calendar.DATE, endC.getActualMaximum(Calendar.DATE));
                    if (reportItem != null) {
                        reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(postgresFormat.parse(rs.getString(8))), report_dateFormat.format(endC.getTime()), rs.getString(10), rs.getString(11)));
                    }
                    endC.setTime(postgresFormat.parse(rs.getString(8)));
                    endC.add(Calendar.MONTH, 1);
                    lastDate = postgresFormat.format(endC.getTime());
                }
                if (reportItem != null) {
                    fillWithZeros(postgresFormat.parse(lastDate), endDateForZeros, reportItem);
                    reportItems.add(reportItem);
                }
            }

            /*
            jedis.put(redis_key, "persistent", "false");
            jedis.put(redis_key, "query", st.toString());
            jedis.put(redis_key, "result", toJson(reportItems));
            jedis.put(redis_key, "fetchMode", "3");
            */

        } catch (Exception e) {
            log.error("Batch Item Report failed: ", e);
        } finally {
            DbUtils.closeQuietly(rs);
            DbUtils.closeQuietly(st);
            DbUtils.closeQuietly(connection);
        }
    }

    private void fillWithZeros(Date from, Date to, ReportItem reportItem) {
        SimpleDateFormat report_dateFormat = new SimpleDateFormat("yyyy-MM-dd");

        Calendar fromCalendar = Calendar.getInstance();
        fromCalendar.setTime(from);

        Calendar toCalendar = Calendar.getInstance();
        toCalendar.setTime(to);
        while (from.before(to)) {
            Calendar temp_c = Calendar.getInstance();
            temp_c.setTime(from);
            temp_c.set(Calendar.DAY_OF_MONTH, temp_c.getActualMaximum(Calendar.DAY_OF_MONTH));
            Date temp_endDate = temp_c.getTime();

            reportItem.addPerformance(new ItemPerformance(report_dateFormat.format(from), report_dateFormat.format(temp_endDate), "0", "0"));
            fromCalendar.add(Calendar.MONTH, 1);
            from = fromCalendar.getTime();
        }
    }
}