Examples with ValueTimestampTimeZone org.h2.value.ValueTimestampTimeZone used on opensource projects

Example 11 with ValueTimestampTimeZone

use of org.h2.value.ValueTimestampTimeZone in project h2database by h2database.

the class DateTimeFunctions method truncateDate.

/**
 * Truncate the given date to the unit specified
 *
 * @param datePartStr the time unit (e.g. 'DAY', 'HOUR', etc.)
 * @param valueDate the date
 * @return date truncated to 'day'
 */
public static Value truncateDate(String datePartStr, Value valueDate) {
    int timeUnit = getDatePart(datePartStr);
    // Retrieve the dateValue and the time in nanoseconds of the date.
    long[] fieldDateAndTime = DateTimeUtils.dateAndTimeFromValue(valueDate);
    long dateValue = fieldDateAndTime[0];
    long timeNanosRetrieved = fieldDateAndTime[1];
    // Variable used to the time in nanoseconds of the date truncated.
    long timeNanos;
    // result to nanoseconds.
    switch(timeUnit) {
        case MICROSECOND:
            long nanoInMicroSecond = 1_000L;
            long microseconds = timeNanosRetrieved / nanoInMicroSecond;
            timeNanos = microseconds * nanoInMicroSecond;
            break;
        case MILLISECOND:
            long nanoInMilliSecond = 1_000_000L;
            long milliseconds = timeNanosRetrieved / nanoInMilliSecond;
            timeNanos = milliseconds * nanoInMilliSecond;
            break;
        case SECOND:
            long nanoInSecond = 1_000_000_000L;
            long seconds = timeNanosRetrieved / nanoInSecond;
            timeNanos = seconds * nanoInSecond;
            break;
        case MINUTE:
            long nanoInMinute = 60_000_000_000L;
            long minutes = timeNanosRetrieved / nanoInMinute;
            timeNanos = minutes * nanoInMinute;
            break;
        case HOUR:
            long nanoInHour = 3_600_000_000_000L;
            long hours = timeNanosRetrieved / nanoInHour;
            timeNanos = hours * nanoInHour;
            break;
        case DAY_OF_MONTH:
            timeNanos = 0L;
            break;
        case WEEK:
            long absoluteDay = DateTimeUtils.absoluteDayFromDateValue(dateValue);
            int dayOfWeek = DateTimeUtils.getDayOfWeekFromAbsolute(absoluteDay, 1);
            if (dayOfWeek != 1) {
                dateValue = DateTimeUtils.dateValueFromAbsoluteDay(absoluteDay - dayOfWeek + 1);
            }
            timeNanos = 0L;
            break;
        case MONTH:
            {
                long year = DateTimeUtils.yearFromDateValue(dateValue);
                int month = DateTimeUtils.monthFromDateValue(dateValue);
                dateValue = DateTimeUtils.dateValue(year, month, 1);
                timeNanos = 0L;
                break;
            }
        case QUARTER:
            {
                long year = DateTimeUtils.yearFromDateValue(dateValue);
                int month = DateTimeUtils.monthFromDateValue(dateValue);
                month = ((month - 1) / 3) * 3 + 1;
                dateValue = DateTimeUtils.dateValue(year, month, 1);
                timeNanos = 0L;
                break;
            }
        case YEAR:
            {
                long year = DateTimeUtils.yearFromDateValue(dateValue);
                dateValue = DateTimeUtils.dateValue(year, 1, 1);
                timeNanos = 0L;
                break;
            }
        case DECADE:
            {
                long year = DateTimeUtils.yearFromDateValue(dateValue);
                year = (year / 10) * 10;
                dateValue = DateTimeUtils.dateValue(year, 1, 1);
                timeNanos = 0L;
                break;
            }
        case CENTURY:
            {
                long year = DateTimeUtils.yearFromDateValue(dateValue);
                year = ((year - 1) / 100) * 100 + 1;
                dateValue = DateTimeUtils.dateValue(year, 1, 1);
                timeNanos = 0L;
                break;
            }
        case MILLENNIUM:
            {
                long year = DateTimeUtils.yearFromDateValue(dateValue);
                year = ((year - 1) / 1000) * 1000 + 1;
                dateValue = DateTimeUtils.dateValue(year, 1, 1);
                timeNanos = 0L;
                break;
            }
        default:
            // Return an exception in the timeUnit is not recognized
            throw DbException.getUnsupportedException(datePartStr);
    }
    Value result;
    if (valueDate instanceof ValueTimestampTimeZone) {
        // Case we create a timestamp with timezone with the dateValue and
        // timeNanos computed.
        ValueTimestampTimeZone vTmp = (ValueTimestampTimeZone) valueDate;
        result = ValueTimestampTimeZone.fromDateValueAndNanos(dateValue, timeNanos, vTmp.getTimeZoneOffsetMins());
    } else {
        // By default, we create a timestamp with the dateValue and
        // timeNanos computed.
        result = ValueTimestamp.fromDateValueAndNanos(dateValue, timeNanos);
    }
    return result;
}

Example 12 with ValueTimestampTimeZone

use of org.h2.value.ValueTimestampTimeZone in project h2database by h2database.

the class DateTimeFunctions method extract.

/**
 * Extracts specified field from the specified date-time value.
 *
 * @param part
 *            the date part
 * @param value
 *            the date-time value
 * @return extracted field
 */
public static Value extract(String part, Value value) {
    Value result;
    int field = getDatePart(part);
    if (field != EPOCH) {
        result = ValueInt.get(getIntDatePart(value, field));
    } else {
        // Case where we retrieve the EPOCH time.
        // First we retrieve the dateValue and his time in nanoseconds.
        long[] a = DateTimeUtils.dateAndTimeFromValue(value);
        long dateValue = a[0];
        long timeNanos = a[1];
        // We compute the time in nanoseconds and the total number of days.
        BigDecimal timeNanosBigDecimal = new BigDecimal(timeNanos);
        BigDecimal numberOfDays = new BigDecimal(DateTimeUtils.absoluteDayFromDateValue(dateValue));
        BigDecimal nanosSeconds = new BigDecimal(1_000_000_000);
        BigDecimal secondsPerDay = new BigDecimal(DateTimeUtils.SECONDS_PER_DAY);
        // Case where the value is of type time e.g. '10:00:00'
        if (value instanceof ValueTime) {
            // In order to retrieve the EPOCH time we only have to convert the time
            // in nanoseconds (previously retrieved) in seconds.
            result = ValueDecimal.get(timeNanosBigDecimal.divide(nanosSeconds));
        } else if (value instanceof ValueDate) {
            // Case where the value is of type date '2000:01:01', we have to retrieve the
            // total number of days and multiply it by the number of seconds in a day.
            result = ValueDecimal.get(numberOfDays.multiply(secondsPerDay));
        } else if (value instanceof ValueTimestampTimeZone) {
            // Case where the value is a of type ValueTimestampTimeZone
            // ('2000:01:01 10:00:00+05').
            // We retrieve the time zone offset in minutes
            ValueTimestampTimeZone v = (ValueTimestampTimeZone) value;
            BigDecimal timeZoneOffsetSeconds = new BigDecimal(v.getTimeZoneOffsetMins() * 60);
            // Sum the time in nanoseconds and the total number of days in seconds
            // and adding the timeZone offset in seconds.
            result = ValueDecimal.get(timeNanosBigDecimal.divide(nanosSeconds).add(numberOfDays.multiply(secondsPerDay)).subtract(timeZoneOffsetSeconds));
        } else {
            // By default, we have the date and the time ('2000:01:01 10:00:00') if no type
            // is given.
            // We just have to sum the time in nanoseconds and the total number of days in
            // seconds.
            result = ValueDecimal.get(timeNanosBigDecimal.divide(nanosSeconds).add(numberOfDays.multiply(secondsPerDay)));
        }
    }
    return result;
}

Example 13 with ValueTimestampTimeZone

use of org.h2.value.ValueTimestampTimeZone in project h2database by h2database.

the class DateTimeUtils method dateAndTimeFromValue.

/**
 * Extracts date value and nanos of day from the specified value.
 *
 * @param value
 *            value to extract fields from
 * @return array with date value and nanos of day
 */
public static long[] dateAndTimeFromValue(Value value) {
    long dateValue = EPOCH_DATE_VALUE;
    long timeNanos = 0;
    if (value instanceof ValueTimestamp) {
        ValueTimestamp v = (ValueTimestamp) value;
        dateValue = v.getDateValue();
        timeNanos = v.getTimeNanos();
    } else if (value instanceof ValueDate) {
        dateValue = ((ValueDate) value).getDateValue();
    } else if (value instanceof ValueTime) {
        timeNanos = ((ValueTime) value).getNanos();
    } else if (value instanceof ValueTimestampTimeZone) {
        ValueTimestampTimeZone v = (ValueTimestampTimeZone) value;
        dateValue = v.getDateValue();
        timeNanos = v.getTimeNanos();
    } else {
        ValueTimestamp v = (ValueTimestamp) value.convertTo(Value.TIMESTAMP);
        dateValue = v.getDateValue();
        timeNanos = v.getTimeNanos();
    }
    return new long[] { dateValue, timeNanos };
}

Example 14 with ValueTimestampTimeZone

use of org.h2.value.ValueTimestampTimeZone in project h2database by h2database.

the class ValueDataType method writeValue.

private void writeValue(WriteBuffer buff, Value v) {
    if (v == ValueNull.INSTANCE) {
        buff.put((byte) 0);
        return;
    }
    int type = v.getType();
    switch(type) {
        case Value.BOOLEAN:
            buff.put((byte) (v.getBoolean() ? BOOLEAN_TRUE : BOOLEAN_FALSE));
            break;
        case Value.BYTE:
            buff.put((byte) type).put(v.getByte());
            break;
        case Value.SHORT:
            buff.put((byte) type).putShort(v.getShort());
            break;
        case Value.ENUM:
        case Value.INT:
            {
                int x = v.getInt();
                if (x < 0) {
                    buff.put((byte) INT_NEG).putVarInt(-x);
                } else if (x < 16) {
                    buff.put((byte) (INT_0_15 + x));
                } else {
                    buff.put((byte) type).putVarInt(x);
                }
                break;
            }
        case Value.LONG:
            {
                long x = v.getLong();
                if (x < 0) {
                    buff.put((byte) LONG_NEG).putVarLong(-x);
                } else if (x < 8) {
                    buff.put((byte) (LONG_0_7 + x));
                } else {
                    buff.put((byte) type).putVarLong(x);
                }
                break;
            }
        case Value.DECIMAL:
            {
                BigDecimal x = v.getBigDecimal();
                if (BigDecimal.ZERO.equals(x)) {
                    buff.put((byte) DECIMAL_0_1);
                } else if (BigDecimal.ONE.equals(x)) {
                    buff.put((byte) (DECIMAL_0_1 + 1));
                } else {
                    int scale = x.scale();
                    BigInteger b = x.unscaledValue();
                    int bits = b.bitLength();
                    if (bits <= 63) {
                        if (scale == 0) {
                            buff.put((byte) DECIMAL_SMALL_0).putVarLong(b.longValue());
                        } else {
                            buff.put((byte) DECIMAL_SMALL).putVarInt(scale).putVarLong(b.longValue());
                        }
                    } else {
                        byte[] bytes = b.toByteArray();
                        buff.put((byte) type).putVarInt(scale).putVarInt(bytes.length).put(bytes);
                    }
                }
                break;
            }
        case Value.TIME:
            {
                ValueTime t = (ValueTime) v;
                long nanos = t.getNanos();
                long millis = nanos / 1000000;
                nanos -= millis * 1000000;
                buff.put((byte) type).putVarLong(millis).putVarLong(nanos);
                break;
            }
        case Value.DATE:
            {
                long x = ((ValueDate) v).getDateValue();
                buff.put((byte) type).putVarLong(x);
                break;
            }
        case Value.TIMESTAMP:
            {
                ValueTimestamp ts = (ValueTimestamp) v;
                long dateValue = ts.getDateValue();
                long nanos = ts.getTimeNanos();
                long millis = nanos / 1000000;
                nanos -= millis * 1000000;
                buff.put((byte) type).putVarLong(dateValue).putVarLong(millis).putVarLong(nanos);
                break;
            }
        case Value.TIMESTAMP_TZ:
            {
                ValueTimestampTimeZone ts = (ValueTimestampTimeZone) v;
                long dateValue = ts.getDateValue();
                long nanos = ts.getTimeNanos();
                long millis = nanos / 1000000;
                nanos -= millis * 1000000;
                buff.put((byte) type).putVarLong(dateValue).putVarLong(millis).putVarLong(nanos).putVarInt(ts.getTimeZoneOffsetMins());
                break;
            }
        case Value.JAVA_OBJECT:
            {
                byte[] b = v.getBytesNoCopy();
                buff.put((byte) type).putVarInt(b.length).put(b);
                break;
            }
        case Value.BYTES:
            {
                byte[] b = v.getBytesNoCopy();
                int len = b.length;
                if (len < 32) {
                    buff.put((byte) (BYTES_0_31 + len)).put(b);
                } else {
                    buff.put((byte) type).putVarInt(b.length).put(b);
                }
                break;
            }
        case Value.UUID:
            {
                ValueUuid uuid = (ValueUuid) v;
                buff.put((byte) type).putLong(uuid.getHigh()).putLong(uuid.getLow());
                break;
            }
        case Value.STRING:
            {
                String s = v.getString();
                int len = s.length();
                if (len < 32) {
                    buff.put((byte) (STRING_0_31 + len)).putStringData(s, len);
                } else {
                    buff.put((byte) type);
                    writeString(buff, s);
                }
                break;
            }
        case Value.STRING_IGNORECASE:
        case Value.STRING_FIXED:
            buff.put((byte) type);
            writeString(buff, v.getString());
            break;
        case Value.DOUBLE:
            {
                double x = v.getDouble();
                if (x == 1.0d) {
                    buff.put((byte) (DOUBLE_0_1 + 1));
                } else {
                    long d = Double.doubleToLongBits(x);
                    if (d == ValueDouble.ZERO_BITS) {
                        buff.put((byte) DOUBLE_0_1);
                    } else {
                        buff.put((byte) type).putVarLong(Long.reverse(d));
                    }
                }
                break;
            }
        case Value.FLOAT:
            {
                float x = v.getFloat();
                if (x == 1.0f) {
                    buff.put((byte) (FLOAT_0_1 + 1));
                } else {
                    int f = Float.floatToIntBits(x);
                    if (f == ValueFloat.ZERO_BITS) {
                        buff.put((byte) FLOAT_0_1);
                    } else {
                        buff.put((byte) type).putVarInt(Integer.reverse(f));
                    }
                }
                break;
            }
        case Value.BLOB:
        case Value.CLOB:
            {
                buff.put((byte) type);
                ValueLobDb lob = (ValueLobDb) v;
                byte[] small = lob.getSmall();
                if (small == null) {
                    buff.putVarInt(-3).putVarInt(lob.getTableId()).putVarLong(lob.getLobId()).putVarLong(lob.getPrecision());
                } else {
                    buff.putVarInt(small.length).put(small);
                }
                break;
            }
        case Value.ARRAY:
            {
                Value[] list = ((ValueArray) v).getList();
                buff.put((byte) type).putVarInt(list.length);
                for (Value x : list) {
                    writeValue(buff, x);
                }
                break;
            }
        case Value.RESULT_SET:
            {
                buff.put((byte) type);
                try {
                    ResultSet rs = ((ValueResultSet) v).getResultSet();
                    rs.beforeFirst();
                    ResultSetMetaData meta = rs.getMetaData();
                    int columnCount = meta.getColumnCount();
                    buff.putVarInt(columnCount);
                    for (int i = 0; i < columnCount; i++) {
                        writeString(buff, meta.getColumnName(i + 1));
                        buff.putVarInt(meta.getColumnType(i + 1)).putVarInt(meta.getPrecision(i + 1)).putVarInt(meta.getScale(i + 1));
                    }
                    while (rs.next()) {
                        buff.put((byte) 1);
                        for (int i = 0; i < columnCount; i++) {
                            int t = org.h2.value.DataType.getValueTypeFromResultSet(meta, i + 1);
                            Value val = org.h2.value.DataType.readValue(null, rs, i + 1, t);
                            writeValue(buff, val);
                        }
                    }
                    buff.put((byte) 0);
                    rs.beforeFirst();
                } catch (SQLException e) {
                    throw DbException.convert(e);
                }
                break;
            }
        case Value.GEOMETRY:
            {
                byte[] b = v.getBytes();
                int len = b.length;
                buff.put((byte) type).putVarInt(len).put(b);
                break;
            }
        default:
            if (JdbcUtils.customDataTypesHandler != null) {
                byte[] b = v.getBytesNoCopy();
                buff.put((byte) CUSTOM_DATA_TYPE).putVarInt(type).putVarInt(b.length).put(b);
                break;
            }
            DbException.throwInternalError("type=" + v.getType());
    }
}

Example 15 with ValueTimestampTimeZone

use of org.h2.value.ValueTimestampTimeZone in project h2database by h2database.

the class TestTimeStampWithTimeZone method test4.

private void test4() {
    ValueTimestampTimeZone a = ValueTimestampTimeZone.parse("1970-01-02 00:00:01.00+01:15");
    ValueTimestampTimeZone b = ValueTimestampTimeZone.parse("1970-01-01 23:00:01.00+00:15");
    int c = a.compareTo(b, null);
    assertEquals(0, c);
    c = b.compareTo(a, null);
    assertEquals(0, c);
}