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h2database
提交 40e1f3ce authored 作者: Noel Grandin's avatar Noel Grandin
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split up the rather large convertTo method 

and unify the convert-from-string code with the corresponding target
type, so the logic is easy to see on a per-target-type basis.
上级 9ba3f6ea
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正在显示 包含 559 行增加 和 556 行删除
h2/src/main/org/h2/value/Value.java
浏览文件 @ 40e1f3ce
...@@ -716,585 +716,588 @@ public abstract class Value { ...@@ -716,585 +716,588 @@ public abstract class Value {
return this; return this;
} }
try { try {
// decimal conversion
switch (targetType) {
case BOOLEAN: {
switch (getType()) {
case BYTE:
case SHORT:
case INT:
case LONG:
case DECIMAL:
case DOUBLE:
case FLOAT:
return ValueBoolean.get(getSignum() != 0);
case TIME:
case DATE:
case TIMESTAMP:
case TIMESTAMP_TZ:
case BYTES:
case JAVA_OBJECT:
case UUID:
case ENUM:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case BYTE: {
switch (getType()) {
case BOOLEAN:
return ValueByte.get(getBoolean() ? (byte) 1 : (byte) 0);
case SHORT:
case ENUM:
case INT:
return ValueByte.get(convertToByte(getInt(), column));
case LONG:
return ValueByte.get(convertToByte(getLong(), column));
case DECIMAL:
return ValueByte.get(convertToByte(convertToLong(getBigDecimal(), column), column));
case DOUBLE:
return ValueByte.get(convertToByte(convertToLong(getDouble(), column), column));
case FLOAT:
return ValueByte.get(convertToByte(convertToLong(getFloat(), column), column));
case BYTES:
return ValueByte.get((byte) Integer.parseInt(getString(), 16));
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case SHORT: {
switch (getType()) {
case BOOLEAN:
return ValueShort.get(getBoolean() ? (short) 1 : (short) 0);
case BYTE:
return ValueShort.get(getByte());
case ENUM:
case INT:
return ValueShort.get(convertToShort(getInt(), column));
case LONG:
return ValueShort.get(convertToShort(getLong(), column));
case DECIMAL:
return ValueShort.get(convertToShort(convertToLong(getBigDecimal(), column), column));
case DOUBLE:
return ValueShort.get(convertToShort(convertToLong(getDouble(), column), column));
case FLOAT:
return ValueShort.get(convertToShort(convertToLong(getFloat(), column), column));
case BYTES:
return ValueShort.get((short) Integer.parseInt(getString(), 16));
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case INT: {
switch (getType()) {
case BOOLEAN:
return ValueInt.get(getBoolean() ? 1 : 0);
case BYTE:
case ENUM:
case SHORT:
return ValueInt.get(getInt());
case LONG:
return ValueInt.get(convertToInt(getLong(), column));
case DECIMAL:
return ValueInt.get(convertToInt(convertToLong(getBigDecimal(), column), column));
case DOUBLE:
return ValueInt.get(convertToInt(convertToLong(getDouble(), column), column));
case FLOAT:
return ValueInt.get(convertToInt(convertToLong(getFloat(), column), column));
case BYTES:
return ValueInt.get((int) Long.parseLong(getString(), 16));
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case LONG: {
switch (getType()) {
case BOOLEAN:
return ValueLong.get(getBoolean() ? 1 : 0);
case BYTE:
case SHORT:
case ENUM:
case INT:
return ValueLong.get(getInt());
case DECIMAL:
return ValueLong.get(convertToLong(getBigDecimal(), column));
case DOUBLE:
return ValueLong.get(convertToLong(getDouble(), column));
case FLOAT:
return ValueLong.get(convertToLong(getFloat(), column));
case BYTES: {
// parseLong doesn't work for ffffffffffffffff
byte[] d = getBytes();
if (d.length == 8) {
return ValueLong.get(Bits.readLong(d, 0));
}
return ValueLong.get(Long.parseLong(getString(), 16));
}
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case DECIMAL: {
switch (getType()) {
case BOOLEAN:
return (ValueDecimal) (getBoolean() ? ValueDecimal.ONE : ValueDecimal.ZERO);
case BYTE:
case SHORT:
case ENUM:
case INT:
return ValueDecimal.get(BigDecimal.valueOf(getInt()));
case LONG:
return ValueDecimal.get(BigDecimal.valueOf(getLong()));
case DOUBLE: {
double d = getDouble();
if (Double.isInfinite(d) || Double.isNaN(d)) {
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, Double.toString(d));
}
return ValueDecimal.get(BigDecimal.valueOf(d));
}
case FLOAT: {
float f = getFloat();
if (Float.isInfinite(f) || Float.isNaN(f)) {
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, Float.toString(f));
}
// better rounding behavior than BigDecimal.valueOf(f)
return ValueDecimal.get(new BigDecimal(Float.toString(f)));
}
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case DOUBLE: {
switch (getType()) {
case BOOLEAN:
return ValueDouble.get(getBoolean() ? 1 : 0);
case BYTE:
case SHORT:
case INT:
return ValueDouble.get(getInt());
case LONG:
return ValueDouble.get(getLong());
case DECIMAL:
return ValueDouble.get(getBigDecimal().doubleValue());
case FLOAT:
return ValueDouble.get(getFloat());
case ENUM:
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case FLOAT: {
switch (getType()) {
case BOOLEAN:
return ValueFloat.get(getBoolean() ? 1 : 0);
case BYTE:
case SHORT:
case INT:
return ValueFloat.get(getInt());
case LONG:
return ValueFloat.get(getLong());
case DECIMAL:
return ValueFloat.get(getBigDecimal().floatValue());
case DOUBLE:
return ValueFloat.get((float) getDouble());
case ENUM:
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case DATE: {
switch (getType()) {
case TIME:
// because the time has set the date to 1970-01-01,
// this will be the result
return ValueDate.fromDateValue(DateTimeUtils.EPOCH_DATE_VALUE);
case TIMESTAMP:
return ValueDate.fromDateValue(
((ValueTimestamp) this).getDateValue());
case TIMESTAMP_TZ: {
ValueTimestampTimeZone ts = (ValueTimestampTimeZone) this;
long dateValue = ts.getDateValue(), timeNanos = ts.getTimeNanos();
long millis = DateTimeUtils.getMillis(dateValue, timeNanos, ts.getTimeZoneOffsetMins());
return ValueDate.fromMillis(millis);
}
case ENUM:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case TIME: {
switch (getType()) {
case DATE:
// need to normalize the year, month and day because a date
// has the time set to 0, the result will be 0
return ValueTime.fromNanos(0);
case TIMESTAMP:
return ValueTime.fromNanos(
((ValueTimestamp) this).getTimeNanos());
case TIMESTAMP_TZ: {
ValueTimestampTimeZone ts = (ValueTimestampTimeZone) this;
long dateValue = ts.getDateValue(), timeNanos = ts.getTimeNanos();
long millis = DateTimeUtils.getMillis(dateValue, timeNanos, ts.getTimeZoneOffsetMins());
return ValueTime.fromNanos(DateTimeUtils.nanosFromDate(millis) + timeNanos % 1_000_000);
}
case ENUM:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case TIMESTAMP: {
switch (getType()) {
case TIME:
return DateTimeUtils.normalizeTimestamp(
0, ((ValueTime) this).getNanos());
case DATE:
return ValueTimestamp.fromDateValueAndNanos(
((ValueDate) this).getDateValue(), 0);
case TIMESTAMP_TZ: {
ValueTimestampTimeZone ts = (ValueTimestampTimeZone) this;
long dateValue = ts.getDateValue(), timeNanos = ts.getTimeNanos();
long millis = DateTimeUtils.getMillis(dateValue, timeNanos, ts.getTimeZoneOffsetMins());
return ValueTimestamp.fromMillisNanos(millis, (int) (timeNanos % 1_000_000));
}
case ENUM:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case TIMESTAMP_TZ: {
switch (getType()) {
case TIME: {
ValueTimestamp ts = DateTimeUtils.normalizeTimestamp(0, ((ValueTime) this).getNanos());
return DateTimeUtils.timestampTimeZoneFromLocalDateValueAndNanos(
ts.getDateValue(), ts.getTimeNanos());
}
case DATE:
return DateTimeUtils.timestampTimeZoneFromLocalDateValueAndNanos(
((ValueDate) this).getDateValue(), 0);
case TIMESTAMP: {
ValueTimestamp ts = (ValueTimestamp) this;
return DateTimeUtils.timestampTimeZoneFromLocalDateValueAndNanos(
ts.getDateValue(), ts.getTimeNanos());
}
case ENUM:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case BYTES: {
switch (getType()) {
case JAVA_OBJECT:
case BLOB:
return ValueBytes.getNoCopy(getBytesNoCopy());
case UUID:
case GEOMETRY:
return ValueBytes.getNoCopy(getBytes());
case BYTE:
return ValueBytes.getNoCopy(new byte[]{getByte()});
case SHORT: {
int x = getShort();
return ValueBytes.getNoCopy(new byte[]{
(byte) (x >> 8),
(byte) x
});
}
case INT: {
byte[] b = new byte[4];
Bits.writeInt(b, 0, getInt());
return ValueBytes.getNoCopy(b);
}
case LONG: {
byte[] b = new byte[8];
Bits.writeLong(b, 0, getLong());
return ValueBytes.getNoCopy(b);
}
case ENUM:
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case STRING: {
String s;
if (getType() == BYTES && mode != null && mode.charToBinaryInUtf8) {
// Bugfix - Can't use the locale encoding when enabling
// charToBinaryInUtf8 in mode.
// The following two target types also are the same issue.
// @since 2018-07-19 little-pan
s = new String(getBytesNoCopy(), StandardCharsets.UTF_8);
} else {
s = getString();
}
return ValueString.get(s);
}
case STRING_IGNORECASE: {
String s;
if (getType() == BYTES && mode != null && mode.charToBinaryInUtf8) {
s = new String(getBytesNoCopy(), StandardCharsets.UTF_8);
} else {
s = getString();
}
return ValueStringIgnoreCase.get(s);
}
case STRING_FIXED: {
String s;
if (getType() == BYTES && mode != null && mode.charToBinaryInUtf8) {
s = new String(getBytesNoCopy(), StandardCharsets.UTF_8);
} else {
s = getString();
}
return ValueStringFixed.get(s, precision, mode);
}
case JAVA_OBJECT: {
switch (getType()) {
case BYTES:
case BLOB:
return ValueJavaObject.getNoCopy(
null, getBytesNoCopy(), getDataHandler());
case ENUM:
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case ENUM: {
switch (getType()) {
case BYTE:
case SHORT:
case INT:
case LONG:
case DECIMAL:
return ValueEnum.get(enumerators, getInt());
case STRING:
case STRING_IGNORECASE:
case STRING_FIXED:
return ValueEnum.get(enumerators, getString());
case JAVA_OBJECT:
Object object = JdbcUtils.deserialize(getBytesNoCopy(),
getDataHandler());
if (object instanceof String) {
return ValueEnum.get(enumerators, (String) object);
} else if (object instanceof Integer) {
return ValueEnum.get(enumerators, (int) object);
}
//$FALL-THROUGH$
default:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
}
case BLOB: {
switch (getType()) {
case BYTES:
return ValueLobDb.createSmallLob(
Value.BLOB, getBytesNoCopy());
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case UUID: {
switch (getType()) {
case BYTES:
return ValueUuid.get(getBytesNoCopy());
case JAVA_OBJECT:
Object object = JdbcUtils.deserialize(getBytesNoCopy(),
getDataHandler());
if (object instanceof java.util.UUID) {
return ValueUuid.get((java.util.UUID) object);
}
throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1, getString());
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case GEOMETRY: {
switch (getType()) {
case BYTES:
return ValueGeometry.get(getBytesNoCopy());
case JAVA_OBJECT:
Object object = JdbcUtils.deserialize(getBytesNoCopy(), getDataHandler());
if (DataType.isGeometry(object)) {
return ValueGeometry.getFromGeometry(object);
}
//$FALL-THROUGH$
case TIMESTAMP_TZ:
throw DbException.get(
ErrorCode.DATA_CONVERSION_ERROR_1, getString());
}
break;
}
case Value.INTERVAL_YEAR:
case Value.INTERVAL_MONTH:
case Value.INTERVAL_YEAR_TO_MONTH:
switch (getType()) {
case Value.STRING:
case Value.STRING_IGNORECASE:
case Value.STRING_FIXED: {
String s = getString();
try {
return DateTimeUtils.parseFormattedInterval(
IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR), s)
.convertTo(targetType);
} catch (Exception e) {
throw DbException.get(ErrorCode.INVALID_DATETIME_CONSTANT_2, e, "INTERVAL", s);
}
}
case Value.INTERVAL_YEAR:
case Value.INTERVAL_MONTH:
case Value.INTERVAL_YEAR_TO_MONTH:
return DateTimeUtils.intervalFromAbsolute(
IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR),
DateTimeUtils.intervalToAbsolute((ValueInterval) this));
}
break;
case Value.INTERVAL_DAY:
case Value.INTERVAL_HOUR:
case Value.INTERVAL_MINUTE:
case Value.INTERVAL_SECOND:
case Value.INTERVAL_DAY_TO_HOUR:
case Value.INTERVAL_DAY_TO_MINUTE:
case Value.INTERVAL_DAY_TO_SECOND:
case Value.INTERVAL_HOUR_TO_MINUTE:
case Value.INTERVAL_HOUR_TO_SECOND:
case Value.INTERVAL_MINUTE_TO_SECOND:
switch (getType()) {
case Value.STRING:
case Value.STRING_IGNORECASE:
case Value.STRING_FIXED: {
String s = getString();
try {
return DateTimeUtils.parseFormattedInterval(
IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR), s)
.convertTo(targetType);
} catch (Exception e) {
throw DbException.get(ErrorCode.INVALID_DATETIME_CONSTANT_2, e, "INTERVAL", s);
}
}
case Value.INTERVAL_DAY:
case Value.INTERVAL_HOUR:
case Value.INTERVAL_MINUTE:
case Value.INTERVAL_SECOND:
case Value.INTERVAL_DAY_TO_HOUR:
case Value.INTERVAL_DAY_TO_MINUTE:
case Value.INTERVAL_DAY_TO_SECOND:
case Value.INTERVAL_HOUR_TO_MINUTE:
case Value.INTERVAL_HOUR_TO_SECOND:
case Value.INTERVAL_MINUTE_TO_SECOND:
return DateTimeUtils.intervalFromAbsolute(
IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR),
DateTimeUtils.intervalToAbsolute((ValueInterval) this));
}
break;
}
// conversion by parsing the string value
String s = getString();
switch (targetType) { switch (targetType) {
case NULL: case NULL:
return ValueNull.INSTANCE; return ValueNull.INSTANCE;
case BOOLEAN: { case BOOLEAN:
if (s.equalsIgnoreCase("true") || return convertToBoolean();
s.equalsIgnoreCase("t") ||
s.equalsIgnoreCase("yes") ||
s.equalsIgnoreCase("y")) {
return ValueBoolean.TRUE;
} else if (s.equalsIgnoreCase("false") ||
s.equalsIgnoreCase("f") ||
s.equalsIgnoreCase("no") ||
s.equalsIgnoreCase("n")) {
return ValueBoolean.FALSE;
} else {
// convert to a number, and if it is not 0 then it is true
return ValueBoolean.get(new BigDecimal(s).signum() != 0);
}
}
case BYTE: case BYTE:
return ValueByte.get(Byte.parseByte(s.trim())); return convertToByte(column);
case SHORT: case SHORT:
return ValueShort.get(Short.parseShort(s.trim())); return convertToShort(column);
case INT: case INT:
return ValueInt.get(Integer.parseInt(s.trim())); return convertToInt(column);
case LONG: case LONG:
return ValueLong.get(Long.parseLong(s.trim())); return convertToLong(column);
case DECIMAL: case DECIMAL:
return ValueDecimal.get(new BigDecimal(s.trim())); return convertToDecimal();
case TIME: case DOUBLE:
return ValueTime.parse(s.trim()); return convertToDouble();
case FLOAT:
return convertToFloat();
case DATE: case DATE:
return ValueDate.parse(s.trim()); return convertToDate();
case TIME:
return convertToTime();
case TIMESTAMP: case TIMESTAMP:
return ValueTimestamp.parse(s.trim(), mode); return convertToTimestamp(mode);
case TIMESTAMP_TZ: case TIMESTAMP_TZ:
return ValueTimestampTimeZone.parse(s.trim()); return convertToTimestampTimeZone();
case BYTES: case BYTES:
return ValueBytes.getNoCopy(mode != null && mode.charToBinaryInUtf8 ? return convertToBytes(mode);
s.getBytes(StandardCharsets.UTF_8): StringUtils.convertHexToBytes(s.trim())); case STRING:
return convertToString(mode);
case STRING_IGNORECASE:
return convertToStringIgnoreCase(mode);
case STRING_FIXED:
return convertToStringFixed(precision, mode);
case JAVA_OBJECT: case JAVA_OBJECT:
return ValueJavaObject.getNoCopy(null, return convertToJavaObject();
StringUtils.convertHexToBytes(s.trim()), getDataHandler()); case ENUM:
case DOUBLE: return convertToEnumInternal(enumerators);
return ValueDouble.get(Double.parseDouble(s.trim()));
case FLOAT:
return ValueFloat.get(Float.parseFloat(s.trim()));
case CLOB:
return ValueLobDb.createSmallLob(
CLOB, s.getBytes(StandardCharsets.UTF_8));
case BLOB: case BLOB:
return ValueLobDb.createSmallLob( return convertToBlob();
BLOB, StringUtils.convertHexToBytes(s.trim())); case CLOB:
case ARRAY: return convertToClob();
return ValueArray.get(new Value[]{ValueString.get(s)});
case RESULT_SET: {
SimpleResultSet rs = new SimpleResultSet();
rs.setAutoClose(false);
rs.addColumn("X", Types.VARCHAR, s.length(), 0);
rs.addRow(s);
return ValueResultSet.get(rs);
}
case UUID: case UUID:
return ValueUuid.get(s); return convertToUuid();
case GEOMETRY: case GEOMETRY:
return ValueGeometry.get(s); return convertToGeometry();
case Value.INTERVAL_YEAR:
case Value.INTERVAL_MONTH:
case Value.INTERVAL_YEAR_TO_MONTH:
return convertToInterval1(targetType);
case Value.INTERVAL_DAY:
case Value.INTERVAL_HOUR:
case Value.INTERVAL_MINUTE:
case Value.INTERVAL_SECOND:
case Value.INTERVAL_DAY_TO_HOUR:
case Value.INTERVAL_DAY_TO_MINUTE:
case Value.INTERVAL_DAY_TO_SECOND:
case Value.INTERVAL_HOUR_TO_MINUTE:
case Value.INTERVAL_HOUR_TO_SECOND:
case Value.INTERVAL_MINUTE_TO_SECOND:
return convertToInterval2(targetType);
case ARRAY:
return convertToArray();
case RESULT_SET:
return convertToResultSet();
default: default:
if (JdbcUtils.customDataTypesHandler != null) { if (JdbcUtils.customDataTypesHandler != null) {
return JdbcUtils.customDataTypesHandler.convert(this, targetType); return JdbcUtils.customDataTypesHandler.convert(this, targetType);
} }
DataType from = DataType.getDataType(getType()); throw getDataConversionError(targetType);
DataType to = DataType.getDataType(targetType);
throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1,
(from != null ? from.name : "type=" + getType()) + " to "
+ (to != null ? to.name : "type=" + targetType));
} }
} catch (NumberFormatException e) { } catch (NumberFormatException e) {
throw DbException.get( throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1, e, getString());
ErrorCode.DATA_CONVERSION_ERROR_1, e, getString()); }
}
private ValueBoolean convertToBoolean() {
switch (getType()) {
case BYTE:
case SHORT:
case INT:
case LONG:
case DECIMAL:
case DOUBLE:
case FLOAT:
return ValueBoolean.get(getSignum() != 0);
case TIME:
case DATE:
case TIMESTAMP:
case TIMESTAMP_TZ:
case BYTES:
case JAVA_OBJECT:
case UUID:
case ENUM:
throw getDataConversionError(BOOLEAN);
}
String s = getString();
if (s.equalsIgnoreCase("true") || s.equalsIgnoreCase("t") || s.equalsIgnoreCase("yes")
|| s.equalsIgnoreCase("y")) {
return ValueBoolean.TRUE;
} else if (s.equalsIgnoreCase("false") || s.equalsIgnoreCase("f") || s.equalsIgnoreCase("no")
|| s.equalsIgnoreCase("n")) {
return ValueBoolean.FALSE;
} else {
// convert to a number, and if it is not 0 then it is true
return ValueBoolean.get(new BigDecimal(s).signum() != 0);
}
}
private ValueByte convertToByte(Object column) {
switch (getType()) {
case BOOLEAN:
return ValueByte.get(getBoolean() ? (byte) 1 : (byte) 0);
case SHORT:
case ENUM:
case INT:
return ValueByte.get(convertToByte(getInt(), column));
case LONG:
return ValueByte.get(convertToByte(getLong(), column));
case DECIMAL:
return ValueByte.get(convertToByte(convertToLong(getBigDecimal(), column), column));
case DOUBLE:
return ValueByte.get(convertToByte(convertToLong(getDouble(), column), column));
case FLOAT:
return ValueByte.get(convertToByte(convertToLong(getFloat(), column), column));
case BYTES:
return ValueByte.get((byte) Integer.parseInt(getString(), 16));
case TIMESTAMP_TZ:
throw getDataConversionError(BYTE);
}
return ValueByte.get(Byte.parseByte(getString().trim()));
}
private ValueShort convertToShort(Object column) {
switch (getType()) {
case BOOLEAN:
return ValueShort.get(getBoolean() ? (short) 1 : (short) 0);
case BYTE:
return ValueShort.get(getByte());
case ENUM:
case INT:
return ValueShort.get(convertToShort(getInt(), column));
case LONG:
return ValueShort.get(convertToShort(getLong(), column));
case DECIMAL:
return ValueShort.get(convertToShort(convertToLong(getBigDecimal(), column), column));
case DOUBLE:
return ValueShort.get(convertToShort(convertToLong(getDouble(), column), column));
case FLOAT:
return ValueShort.get(convertToShort(convertToLong(getFloat(), column), column));
case BYTES:
return ValueShort.get((short) Integer.parseInt(getString(), 16));
case TIMESTAMP_TZ:
throw getDataConversionError(SHORT);
}
return ValueShort.get(Short.parseShort(getString().trim()));
}
private ValueInt convertToInt(Object column) {
switch (getType()) {
case BOOLEAN:
return ValueInt.get(getBoolean() ? 1 : 0);
case BYTE:
case ENUM:
case SHORT:
return ValueInt.get(getInt());
case LONG:
return ValueInt.get(convertToInt(getLong(), column));
case DECIMAL:
return ValueInt.get(convertToInt(convertToLong(getBigDecimal(), column), column));
case DOUBLE:
return ValueInt.get(convertToInt(convertToLong(getDouble(), column), column));
case FLOAT:
return ValueInt.get(convertToInt(convertToLong(getFloat(), column), column));
case BYTES:
return ValueInt.get((int) Long.parseLong(getString(), 16));
case TIMESTAMP_TZ:
throw getDataConversionError(INT);
} }
return ValueInt.get(Integer.parseInt(getString().trim()));
}
private ValueLong convertToLong(Object column) {
switch (getType()) {
case BOOLEAN:
return ValueLong.get(getBoolean() ? 1 : 0);
case BYTE:
case SHORT:
case ENUM:
case INT:
return ValueLong.get(getInt());
case DECIMAL:
return ValueLong.get(convertToLong(getBigDecimal(), column));
case DOUBLE:
return ValueLong.get(convertToLong(getDouble(), column));
case FLOAT:
return ValueLong.get(convertToLong(getFloat(), column));
case BYTES: {
// parseLong doesn't work for ffffffffffffffff
byte[] d = getBytes();
if (d.length == 8) {
return ValueLong.get(Bits.readLong(d, 0));
}
return ValueLong.get(Long.parseLong(getString(), 16));
}
case TIMESTAMP_TZ:
throw getDataConversionError(LONG);
}
return ValueLong.get(Long.parseLong(getString().trim()));
}
private ValueDecimal convertToDecimal() {
switch (getType()) {
case BOOLEAN:
return (ValueDecimal) (getBoolean() ? ValueDecimal.ONE : ValueDecimal.ZERO);
case BYTE:
case SHORT:
case ENUM:
case INT:
return ValueDecimal.get(BigDecimal.valueOf(getInt()));
case LONG:
return ValueDecimal.get(BigDecimal.valueOf(getLong()));
case DOUBLE: {
double d = getDouble();
if (Double.isInfinite(d) || Double.isNaN(d)) {
throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1, Double.toString(d));
}
return ValueDecimal.get(BigDecimal.valueOf(d));
}
case FLOAT: {
float f = getFloat();
if (Float.isInfinite(f) || Float.isNaN(f)) {
throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1, Float.toString(f));
}
// better rounding behavior than BigDecimal.valueOf(f)
return ValueDecimal.get(new BigDecimal(Float.toString(f)));
}
case TIMESTAMP_TZ:
throw getDataConversionError(DECIMAL);
}
return ValueDecimal.get(new BigDecimal(getString().trim()));
}
private ValueDouble convertToDouble() {
switch (getType()) {
case BOOLEAN:
return ValueDouble.get(getBoolean() ? 1 : 0);
case BYTE:
case SHORT:
case INT:
return ValueDouble.get(getInt());
case LONG:
return ValueDouble.get(getLong());
case DECIMAL:
return ValueDouble.get(getBigDecimal().doubleValue());
case FLOAT:
return ValueDouble.get(getFloat());
case ENUM:
case TIMESTAMP_TZ:
throw getDataConversionError(DOUBLE);
}
return ValueDouble.get(Double.parseDouble(getString().trim()));
}
private ValueFloat convertToFloat() {
switch (getType()) {
case BOOLEAN:
return ValueFloat.get(getBoolean() ? 1 : 0);
case BYTE:
case SHORT:
case INT:
return ValueFloat.get(getInt());
case LONG:
return ValueFloat.get(getLong());
case DECIMAL:
return ValueFloat.get(getBigDecimal().floatValue());
case DOUBLE:
return ValueFloat.get((float) getDouble());
case ENUM:
case TIMESTAMP_TZ:
throw getDataConversionError(FLOAT);
}
return ValueFloat.get(Float.parseFloat(getString().trim()));
}
private ValueDate convertToDate() {
switch (getType()) {
case TIME:
// because the time has set the date to 1970-01-01,
// this will be the result
return ValueDate.fromDateValue(DateTimeUtils.EPOCH_DATE_VALUE);
case TIMESTAMP:
return ValueDate.fromDateValue(((ValueTimestamp) this).getDateValue());
case TIMESTAMP_TZ: {
ValueTimestampTimeZone ts = (ValueTimestampTimeZone) this;
long dateValue = ts.getDateValue(), timeNanos = ts.getTimeNanos();
long millis = DateTimeUtils.getMillis(dateValue, timeNanos, ts.getTimeZoneOffsetMins());
return ValueDate.fromMillis(millis);
}
case ENUM:
throw getDataConversionError(DATE);
}
return ValueDate.parse(getString().trim());
}
private ValueTime convertToTime() {
switch (getType()) {
case DATE:
// need to normalize the year, month and day because a date
// has the time set to 0, the result will be 0
return ValueTime.fromNanos(0);
case TIMESTAMP:
return ValueTime.fromNanos(((ValueTimestamp) this).getTimeNanos());
case TIMESTAMP_TZ: {
ValueTimestampTimeZone ts = (ValueTimestampTimeZone) this;
long dateValue = ts.getDateValue(), timeNanos = ts.getTimeNanos();
long millis = DateTimeUtils.getMillis(dateValue, timeNanos, ts.getTimeZoneOffsetMins());
return ValueTime.fromNanos(DateTimeUtils.nanosFromDate(millis) + timeNanos % 1_000_000);
}
case ENUM:
throw getDataConversionError(TIME);
}
return ValueTime.parse(getString().trim());
}
private ValueTimestamp convertToTimestamp(Mode mode) {
switch (getType()) {
case TIME:
return DateTimeUtils.normalizeTimestamp(0, ((ValueTime) this).getNanos());
case DATE:
return ValueTimestamp.fromDateValueAndNanos(((ValueDate) this).getDateValue(), 0);
case TIMESTAMP_TZ: {
ValueTimestampTimeZone ts = (ValueTimestampTimeZone) this;
long dateValue = ts.getDateValue(), timeNanos = ts.getTimeNanos();
long millis = DateTimeUtils.getMillis(dateValue, timeNanos, ts.getTimeZoneOffsetMins());
return ValueTimestamp.fromMillisNanos(millis, (int) (timeNanos % 1_000_000));
}
case ENUM:
throw getDataConversionError(TIMESTAMP);
}
return ValueTimestamp.parse(getString().trim(), mode);
}
private ValueTimestampTimeZone convertToTimestampTimeZone() {
switch (getType()) {
case TIME: {
ValueTimestamp ts = DateTimeUtils.normalizeTimestamp(0, ((ValueTime) this).getNanos());
return DateTimeUtils.timestampTimeZoneFromLocalDateValueAndNanos(ts.getDateValue(), ts.getTimeNanos());
}
case DATE:
return DateTimeUtils.timestampTimeZoneFromLocalDateValueAndNanos(((ValueDate) this).getDateValue(), 0);
case TIMESTAMP: {
ValueTimestamp ts = (ValueTimestamp) this;
return DateTimeUtils.timestampTimeZoneFromLocalDateValueAndNanos(ts.getDateValue(), ts.getTimeNanos());
}
case ENUM:
throw getDataConversionError(TIMESTAMP_TZ);
}
return ValueTimestampTimeZone.parse(getString().trim());
}
private ValueBytes convertToBytes(Mode mode) {
switch (getType()) {
case JAVA_OBJECT:
case BLOB:
return ValueBytes.getNoCopy(getBytesNoCopy());
case UUID:
case GEOMETRY:
return ValueBytes.getNoCopy(getBytes());
case BYTE:
return ValueBytes.getNoCopy(new byte[] { getByte() });
case SHORT: {
int x = getShort();
return ValueBytes.getNoCopy(new byte[] { (byte) (x >> 8), (byte) x });
}
case INT: {
byte[] b = new byte[4];
Bits.writeInt(b, 0, getInt());
return ValueBytes.getNoCopy(b);
}
case LONG: {
byte[] b = new byte[8];
Bits.writeLong(b, 0, getLong());
return ValueBytes.getNoCopy(b);
}
case ENUM:
case TIMESTAMP_TZ:
throw getDataConversionError(BYTES);
}
String s = getString();
return ValueBytes.getNoCopy(mode != null && mode.charToBinaryInUtf8 ? s.getBytes(StandardCharsets.UTF_8)
: StringUtils.convertHexToBytes(s.trim()));
}
private ValueString convertToString(Mode mode) {
String s;
if (getType() == BYTES && mode != null && mode.charToBinaryInUtf8) {
// Bugfix - Can't use the locale encoding when enabling
// charToBinaryInUtf8 in mode.
// The following two target types also are the same issue.
// @since 2018-07-19 little-pan
s = new String(getBytesNoCopy(), StandardCharsets.UTF_8);
} else {
s = getString();
}
return (ValueString) ValueString.get(s);
}
private ValueString convertToStringIgnoreCase(Mode mode) {
String s;
if (getType() == BYTES && mode != null && mode.charToBinaryInUtf8) {
s = new String(getBytesNoCopy(), StandardCharsets.UTF_8);
} else {
s = getString();
}
return ValueStringIgnoreCase.get(s);
}
private ValueString convertToStringFixed(int precision, Mode mode) {
String s;
if (getType() == BYTES && mode != null && mode.charToBinaryInUtf8) {
s = new String(getBytesNoCopy(), StandardCharsets.UTF_8);
} else {
s = getString();
}
return ValueStringFixed.get(s, precision, mode);
}
private ValueJavaObject convertToJavaObject() {
switch (getType()) {
case BYTES:
case BLOB:
return ValueJavaObject.getNoCopy(null, getBytesNoCopy(), getDataHandler());
case ENUM:
case TIMESTAMP_TZ:
throw getDataConversionError(JAVA_OBJECT);
}
return ValueJavaObject.getNoCopy(null, StringUtils.convertHexToBytes(getString().trim()), getDataHandler());
}
private ValueEnum convertToEnumInternal(String[] enumerators) {
switch (getType()) {
case BYTE:
case SHORT:
case INT:
case LONG:
case DECIMAL:
return ValueEnum.get(enumerators, getInt());
case STRING:
case STRING_IGNORECASE:
case STRING_FIXED:
return ValueEnum.get(enumerators, getString());
case JAVA_OBJECT:
Object object = JdbcUtils.deserialize(getBytesNoCopy(), getDataHandler());
if (object instanceof String) {
return ValueEnum.get(enumerators, (String) object);
} else if (object instanceof Integer) {
return ValueEnum.get(enumerators, (int) object);
}
//$FALL-THROUGH$
}
throw getDataConversionError(ENUM);
}
private ValueLobDb convertToBlob() {
switch (getType()) {
case BYTES:
return ValueLobDb.createSmallLob(Value.BLOB, getBytesNoCopy());
case TIMESTAMP_TZ:
throw getDataConversionError(BLOB);
}
return ValueLobDb.createSmallLob(BLOB, StringUtils.convertHexToBytes(getString().trim()));
}
private ValueLobDb convertToClob() {
return ValueLobDb.createSmallLob(CLOB, getString().getBytes(StandardCharsets.UTF_8));
}
private ValueUuid convertToUuid() {
switch (getType()) {
case BYTES:
return ValueUuid.get(getBytesNoCopy());
case JAVA_OBJECT:
Object object = JdbcUtils.deserialize(getBytesNoCopy(), getDataHandler());
if (object instanceof java.util.UUID) {
return ValueUuid.get((java.util.UUID) object);
}
//$FALL-THROUGH$
case TIMESTAMP_TZ:
throw getDataConversionError(UUID);
}
return ValueUuid.get(getString());
}
private ValueGeometry convertToGeometry() {
switch (getType()) {
case BYTES:
return ValueGeometry.get(getBytesNoCopy());
case JAVA_OBJECT:
Object object = JdbcUtils.deserialize(getBytesNoCopy(), getDataHandler());
if (DataType.isGeometry(object)) {
return ValueGeometry.getFromGeometry(object);
}
//$FALL-THROUGH$
case TIMESTAMP_TZ:
throw getDataConversionError(GEOMETRY);
}
return ValueGeometry.get(getString());
}
private ValueInterval convertToInterval1(int targetType) {
switch (getType()) {
case Value.STRING:
case Value.STRING_IGNORECASE:
case Value.STRING_FIXED: {
String s = getString();
try {
return (ValueInterval) DateTimeUtils
.parseFormattedInterval(IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR), s)
.convertTo(targetType);
} catch (Exception e) {
throw DbException.get(ErrorCode.INVALID_DATETIME_CONSTANT_2, e, "INTERVAL", s);
}
}
case Value.INTERVAL_YEAR:
case Value.INTERVAL_MONTH:
case Value.INTERVAL_YEAR_TO_MONTH:
return DateTimeUtils.intervalFromAbsolute(IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR),
DateTimeUtils.intervalToAbsolute((ValueInterval) this));
}
throw getDataConversionError(targetType);
}
private ValueInterval convertToInterval2(int targetType) {
switch (getType()) {
case Value.STRING:
case Value.STRING_IGNORECASE:
case Value.STRING_FIXED: {
String s = getString();
try {
return (ValueInterval) DateTimeUtils
.parseFormattedInterval(IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR), s)
.convertTo(targetType);
} catch (Exception e) {
throw DbException.get(ErrorCode.INVALID_DATETIME_CONSTANT_2, e, "INTERVAL", s);
}
}
case Value.INTERVAL_DAY:
case Value.INTERVAL_HOUR:
case Value.INTERVAL_MINUTE:
case Value.INTERVAL_SECOND:
case Value.INTERVAL_DAY_TO_HOUR:
case Value.INTERVAL_DAY_TO_MINUTE:
case Value.INTERVAL_DAY_TO_SECOND:
case Value.INTERVAL_HOUR_TO_MINUTE:
case Value.INTERVAL_HOUR_TO_SECOND:
case Value.INTERVAL_MINUTE_TO_SECOND:
return DateTimeUtils.intervalFromAbsolute(IntervalQualifier.valueOf(targetType - Value.INTERVAL_YEAR),
DateTimeUtils.intervalToAbsolute((ValueInterval) this));
}
throw getDataConversionError(targetType);
}
private ValueArray convertToArray() {
return ValueArray.get(new Value[] { ValueString.get(getString()) });
}
private ValueResultSet convertToResultSet() {
String s = getString();
SimpleResultSet rs = new SimpleResultSet();
rs.setAutoClose(false);
rs.addColumn("X", Types.VARCHAR, s.length(), 0);
rs.addRow(s);
return ValueResultSet.get(rs);
}
private DbException getDataConversionError(int targetType) {
DataType from = DataType.getDataType(getType());
DataType to = DataType.getDataType(targetType);
throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1, (from != null ? from.name : "type=" + getType())
+ " to " + (to != null ? to.name : "type=" + targetType));
} }
/** /**
......
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