private ByteBuffer writeValue(ByteBuffer buff, Value v) {
int start = buff.position();
if (v == ValueNull.INSTANCE) {
buff.put((byte) 0);
return buff;
}
int type = v.getType();
switch (type) {
case Value.BOOLEAN:
buff.put((byte) (v.getBoolean().booleanValue() ? BOOLEAN_TRUE : BOOLEAN_FALSE));
break;
case Value.BYTE:
buff.put((byte) type);
buff.put(v.getByte());
break;
case Value.SHORT:
buff.put((byte) type);
buff.putShort(v.getShort());
break;
case Value.INT:
{
int x = v.getInt();
if (x < 0) {
buff.put((byte) INT_NEG);
writeVarInt(buff, -x);
} else if (x < 16) {
buff.put((byte) (INT_0_15 + x));
} else {
buff.put((byte) type);
writeVarInt(buff, x);
}
break;
}
case Value.LONG:
{
long x = v.getLong();
if (x < 0) {
buff.put((byte) LONG_NEG);
writeVarLong(buff, -x);
} else if (x < 8) {
buff.put((byte) (LONG_0_7 + x));
} else {
buff.put((byte) type);
writeVarLong(buff, 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);
writeVarLong(buff, b.longValue());
} else {
buff.put((byte) DECIMAL_SMALL);
writeVarInt(buff, scale);
writeVarLong(buff, b.longValue());
}
} else {
buff.put((byte) type);
writeVarInt(buff, scale);
byte[] bytes = b.toByteArray();
writeVarInt(buff, bytes.length);
buff = DataUtils.ensureCapacity(buff, bytes.length);
buff.put(bytes, 0, bytes.length);
}
}
break;
}
case Value.TIME:
if (SysProperties.STORE_LOCAL_TIME) {
buff.put((byte) LOCAL_TIME);
ValueTime t = (ValueTime) v;
long nanos = t.getNanos();
long millis = nanos / 1000000;
nanos -= millis * 1000000;
writeVarLong(buff, millis);
writeVarLong(buff, nanos);
} else {
buff.put((byte) type);
writeVarLong(buff, DateTimeUtils.getTimeLocalWithoutDst(v.getTime()));
}
break;
case Value.DATE:
{
if (SysProperties.STORE_LOCAL_TIME) {
buff.put((byte) LOCAL_DATE);
long x = ((ValueDate) v).getDateValue();
writeVarLong(buff, x);
} else {
buff.put((byte) type);
long x = DateTimeUtils.getTimeLocalWithoutDst(v.getDate());
writeVarLong(buff, x / MILLIS_PER_MINUTE);
}
break;
}
case Value.TIMESTAMP:
{
if (SysProperties.STORE_LOCAL_TIME) {
buff.put((byte) LOCAL_TIMESTAMP);
ValueTimestamp ts = (ValueTimestamp) v;
long dateValue = ts.getDateValue();
writeVarLong(buff, dateValue);
long nanos = ts.getNanos();
long millis = nanos / 1000000;
nanos -= millis * 1000000;
writeVarLong(buff, millis);
writeVarLong(buff, nanos);
} else {
Timestamp ts = v.getTimestamp();
buff.put((byte) type);
writeVarLong(buff, DateTimeUtils.getTimeLocalWithoutDst(ts));
writeVarInt(buff, ts.getNanos());
}
break;
}
case Value.JAVA_OBJECT:
{
buff.put((byte) type);
byte[] b = v.getBytesNoCopy();
writeVarInt(buff, b.length);
buff = DataUtils.ensureCapacity(buff, b.length);
buff.put(b, 0, b.length);
break;
}
case Value.BYTES:
{
byte[] b = v.getBytesNoCopy();
int len = b.length;
if (len < 32) {
buff.put((byte) (BYTES_0_31 + len));
buff.put(b, 0, b.length);
} else {
buff.put((byte) type);
writeVarInt(buff, b.length);
buff = DataUtils.ensureCapacity(buff, b.length);
buff.put(b, 0, b.length);
}
break;
}
case Value.UUID:
{
buff.put((byte) type);
ValueUuid uuid = (ValueUuid) v;
buff.putLong(uuid.getHigh());
buff.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));
buff = writeStringWithoutLength(buff, s, len);
} else {
buff.put((byte) type);
buff = writeString(buff, s);
}
break;
}
case Value.STRING_IGNORECASE:
case Value.STRING_FIXED:
buff.put((byte) type);
buff = 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);
writeVarLong(buff, 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);
writeVarInt(buff, Integer.reverse(f));
}
}
break;
}
case Value.BLOB:
case Value.CLOB:
{
buff.put((byte) type);
if (v instanceof ValueLob) {
ValueLob lob = (ValueLob) v;
lob.convertToFileIfRequired(handler);
byte[] small = lob.getSmall();
if (small == null) {
int t = -1;
if (!lob.isLinked()) {
t = -2;
}
writeVarInt(buff, t);
writeVarInt(buff, lob.getTableId());
writeVarInt(buff, lob.getObjectId());
writeVarLong(buff, lob.getPrecision());
buff.put((byte) (lob.useCompression() ? 1 : 0));
if (t == -2) {
buff = writeString(buff, lob.getFileName());
}
} else {
writeVarInt(buff, small.length);
buff = DataUtils.ensureCapacity(buff, small.length);
buff.put(small, 0, small.length);
}
} else {
ValueLobDb lob = (ValueLobDb) v;
byte[] small = lob.getSmall();
if (small == null) {
writeVarInt(buff, -3);
writeVarInt(buff, lob.getTableId());
writeVarLong(buff, lob.getLobId());
writeVarLong(buff, lob.getPrecision());
} else {
writeVarInt(buff, small.length);
buff = DataUtils.ensureCapacity(buff, small.length);
buff.put(small, 0, small.length);
}
}
break;
}
case Value.ARRAY:
{
buff.put((byte) type);
Value[] list = ((ValueArray) v).getList();
writeVarInt(buff, list.length);
for (Value x : list) {
buff = DataUtils.ensureCapacity(buff, 0);
buff = 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();
writeVarInt(buff, columnCount);
for (int i = 0; i < columnCount; i++) {
buff = DataUtils.ensureCapacity(buff, 0);
buff = writeString(buff, meta.getColumnName(i + 1));
writeVarInt(buff, meta.getColumnType(i + 1));
writeVarInt(buff, meta.getPrecision(i + 1));
writeVarInt(buff, meta.getScale(i + 1));
}
while (rs.next()) {
buff.put((byte) 1);
for (int i = 0; i < columnCount; i++) {
int t = org.h2.value.DataType.convertSQLTypeToValueType(meta.getColumnType(i + 1));
Value val = org.h2.value.DataType.readValue(null, rs, i + 1, t);
buff = writeValue(buff, val);
}
}
buff.put((byte) 0);
rs.beforeFirst();
} catch (SQLException e) {
throw DbException.convert(e);
}
break;
}
default:
DbException.throwInternalError("type=" + v.getType());
}
if (SysProperties.CHECK2) {
if (buff.position() - start != Data.getValueLen(v, handler)) {
throw DbException.throwInternalError(
"value size error: got "
+ (buff.position() - start)
+ " expected "
+ Data.getValueLen(v, handler));
}
}
return buff;
}
