189 lines
6.1 KiB
Java
189 lines
6.1 KiB
Java
/*
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* This file is part of Player Analytics (Plan).
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*
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* Plan is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License v3 as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Plan is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Plan. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.djrapitops.plan.storage.database.sql.building;
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import com.djrapitops.plan.storage.database.DBType;
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import org.apache.commons.text.TextStringBuilder;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.sql.Types;
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import java.util.concurrent.TimeUnit;
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import java.util.stream.IntStream;
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/**
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* Duplicate String reducing utility class for SQL language Strings.
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*/
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public abstract class Sql {
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public static final String ID = "id";
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public static final String P_UUID = "uuid";
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public static final String INT = "integer";
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public static final String DOUBLE = "double";
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public static final String LONG = "bigint";
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public static final String BOOL = "boolean";
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public static final String SELECT = "SELECT ";
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public static final String DISTINCT = "DISTINCT ";
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public static final String FROM = " FROM ";
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public static final String DELETE_FROM = "DELETE" + FROM;
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public static final String WHERE = " WHERE ";
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public static final String GROUP_BY = " GROUP BY ";
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public static final String ORDER_BY = " ORDER BY ";
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public static final String INNER_JOIN = " JOIN ";
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public static final String LEFT_JOIN = " LEFT JOIN ";
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public static final String UNION = " UNION ";
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public static final String UNION_ALL = " UNION ALL ";
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public static final String AND = " AND ";
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public static final String OR = " OR ";
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public static final String IS_NULL = " IS NULL";
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public static final String IS_NOT_NULL = " IS NOT NULL";
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public static final String LIMIT = " LIMIT ";
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public static final String OFFSET = " OFFSET ";
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public static final String TEXT = "TEXT";
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private static final String FLOOR = "FLOOR(";
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private static final String MIN = "MIN(";
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private static final String MAX = "MAX(";
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private static final String VARCHAR = "varchar(";
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public static String nParameters(int n) {
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return new TextStringBuilder()
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.appendWithSeparators(IntStream.range(0, n).mapToObj(i -> "?").iterator(), ",")
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.toString();
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}
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public static String varchar(int length) {
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return VARCHAR + length + ')';
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}
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public static String floor(String expression) {return FLOOR + expression + ')';}
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public static String min(String expression) {return MIN + expression + ')';}
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public static String max(String expression) {return MAX + expression + ')';}
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/**
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* Turn day of week to epoch ms.
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* <p>
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* 1st of January 1970 (Epoch) is Thursday (-2).
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*
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* @param day 1 = Sunday, 2 = Monday etc.. 7 = Saturday
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* @return Milliseconds since epoch for this day to be given by {@link java.text.SimpleDateFormat} "EEEE"
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*/
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public static long getDayEpochMs(int day) {
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return TimeUnit.DAYS.toMillis(day + 2L);
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}
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public static void setStringOrNull(PreparedStatement statement, int index, String value) throws SQLException {
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if (value != null) {
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statement.setString(index, value);
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} else {
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statement.setNull(index, Types.VARCHAR);
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}
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}
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public static String concat(DBType dbType, String one, String two) {
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if (dbType == DBType.MYSQL) {
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return "CONCAT(" + one + ',' + two + ")";
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} else if (dbType == DBType.SQLITE) {
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return one + " || " + two;
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}
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return one + two;
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}
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public abstract String epochSecondToDate(String sql);
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public abstract String dateToEpochSecond(String sql);
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public abstract String dateToDayStamp(String sql);
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public abstract String dateToHourStamp(String sql);
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public abstract String dateToDayOfWeek(String sql);
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public abstract String dateToHour(String sql);
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// https://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html
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public static class MySQL extends Sql {
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@Override
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public String epochSecondToDate(String sql) {
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return "FROM_UNIXTIME(" + sql + ')';
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}
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@Override
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public String dateToEpochSecond(String sql) {
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return "UNIX_TIMESTAMP(" + sql + ')';
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}
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@Override
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public String dateToDayStamp(String sql) {
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return "DATE(" + sql + ')';
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}
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@Override
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public String dateToHourStamp(String sql) {
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return "DATE_FORMAT(" + sql + ",'%Y-%m-%d %H:00:00')";
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}
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@Override
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public String dateToDayOfWeek(String sql) {
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return "DAYOFWEEK(" + sql + ')';
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}
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@Override
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public String dateToHour(String sql) {
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return "HOUR(" + sql + ") % 24";
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}
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}
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// https://sqlite.org/lang_datefunc.html
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public static class SQLite extends Sql {
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@Override
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public String epochSecondToDate(String sql) {
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return "datetime(" + sql + ", 'unixepoch')";
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}
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@Override
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public String dateToEpochSecond(String sql) {
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return "strftime('%s'," + sql + ")";
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}
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@Override
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public String dateToDayStamp(String sql) {
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return "strftime('%Y-%m-%d'," + sql + ')';
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}
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@Override
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public String dateToHourStamp(String sql) {
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return "strftime('%Y-%m-%d %H:00:00'," + sql + ')';
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}
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@Override
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public String dateToDayOfWeek(String sql) {
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return "strftime('%w'," + sql + ")+1";
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}
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@Override
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public String dateToHour(String sql) {
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return "strftime('%H'," + sql + ')';
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}
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}
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}
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