public void flattenToBuffer(ByteBuffer buf) throws IOException {
buf.putShort((short) m_params.length);
for (int i = 0; i < m_params.length; i++) {
Object obj = m_params[i];
if ((obj == null) || (obj == JSONObject.NULL)) {
VoltType type = VoltType.NULL;
buf.put(type.getValue());
continue;
}
Class<?> cls = obj.getClass();
if (cls.isArray()) {
// Since arrays of bytes could be varbinary or strings,
// and they are the only kind of array needed by the EE,
// special case them as the VARBINARY type.
if (obj instanceof byte[]) {
final byte[] b = (byte[]) obj;
// commented out this bit... presumably the EE will do this check upon recipt
/*if (b.length > VoltType.MAX_VALUE_LENGTH) {
throw new IOException("Value of byte[] larger than allowed max string or varbinary " + VoltType.MAX_VALUE_LENGTH_STR);
}*/
buf.put(VoltType.VARBINARY.getValue());
buf.putInt(b.length);
buf.put(b);
continue;
}
// Same as before, but deal with the fact it is coming in as a unmanaged bytebuffer
if (obj instanceof BBContainer) {
final BBContainer cont = (BBContainer) obj;
final ByteBuffer paramBuf = cont.b();
buf.put(VoltType.VARBINARY.getValue());
buf.putInt(paramBuf.remaining());
buf.put(paramBuf);
continue;
}
buf.put(ARRAY);
VoltType type;
try {
type = VoltType.typeFromClass(cls.getComponentType());
} catch (VoltTypeException e) {
obj = getAKosherArray((Object[]) obj);
cls = obj.getClass();
type = VoltType.typeFromClass(cls.getComponentType());
}
buf.put(type.getValue());
switch (type) {
case SMALLINT:
SerializationHelper.writeArray((short[]) obj, buf);
break;
case INTEGER:
SerializationHelper.writeArray((int[]) obj, buf);
break;
case BIGINT:
SerializationHelper.writeArray((long[]) obj, buf);
break;
case FLOAT:
SerializationHelper.writeArray((double[]) obj, buf);
break;
case STRING:
if (m_encodedStringArrays[i] == null) {
// should not happen
throw new IOException("String array not encoded");
}
// This check used to be done by FastSerializer.writeArray(), but things changed?
if (m_encodedStringArrays[i].length > Short.MAX_VALUE) {
throw new IOException(
"Array exceeds maximum length of " + Short.MAX_VALUE + " bytes");
}
buf.putShort((short) m_encodedStringArrays[i].length);
for (int zz = 0; zz < m_encodedStringArrays[i].length; zz++) {
SerializationHelper.writeVarbinary(m_encodedStringArrays[i][zz], buf);
}
break;
case TIMESTAMP:
SerializationHelper.writeArray((TimestampType[]) obj, buf);
break;
case DECIMAL:
// converted long128 in serializer api
SerializationHelper.writeArray((BigDecimal[]) obj, buf);
break;
case VOLTTABLE:
SerializationHelper.writeArray((VoltTable[]) obj, buf);
break;
case VARBINARY:
SerializationHelper.writeArray((byte[][]) obj, buf);
break;
case GEOGRAPHY_POINT:
SerializationHelper.writeArray((GeographyPointValue[]) obj, buf);
break;
case GEOGRAPHY:
SerializationHelper.writeArray((GeographyValue[]) obj, buf);
break;
default:
throw new RuntimeException("FIXME: Unsupported type " + type);
}
continue;
}
// Handle NULL mappings not encoded by type.min_value convention
if (obj == VoltType.NULL_TIMESTAMP) {
buf.put(VoltType.TIMESTAMP.getValue());
buf.putLong(VoltType.NULL_BIGINT); // corresponds to EE value.h isNull()
continue;
} else if (obj == VoltType.NULL_STRING_OR_VARBINARY) {
buf.put(VoltType.STRING.getValue());
buf.putInt(VoltType.NULL_STRING_LENGTH);
continue;
} else if (obj == VoltType.NULL_DECIMAL) {
buf.put(VoltType.DECIMAL.getValue());
VoltDecimalHelper.serializeNull(buf);
continue;
} else if (obj == VoltType.NULL_POINT) {
buf.put(VoltType.GEOGRAPHY_POINT.getValue());
GeographyPointValue.serializeNull(buf);
continue;
} else if (obj == VoltType.NULL_GEOGRAPHY) {
buf.put(VoltType.GEOGRAPHY.getValue());
buf.putInt(VoltType.NULL_STRING_LENGTH);
continue;
} else if (obj instanceof BBContainer) {
final BBContainer cont = (BBContainer) obj;
final ByteBuffer paramBuf = cont.b();
buf.put(VoltType.VARBINARY.getValue());
buf.putInt(paramBuf.remaining());
buf.put(paramBuf);
continue;
}
VoltType type = VoltType.typeFromClass(cls);
buf.put(type.getValue());
switch (type) {
case TINYINT:
buf.put((Byte) obj);
break;
case SMALLINT:
buf.putShort((Short) obj);
break;
case INTEGER:
buf.putInt((Integer) obj);
break;
case BIGINT:
buf.putLong((Long) obj);
break;
case FLOAT:
if (cls == Float.class) buf.putDouble(((Float) obj).doubleValue());
else if (cls == Double.class) buf.putDouble(((Double) obj).doubleValue());
else throw new RuntimeException("Can't cast parameter type to Double");
break;
case STRING:
if (m_encodedStrings[i] == null) {
// should not happen
throw new IOException("String not encoded: " + (String) obj);
}
SerializationHelper.writeVarbinary(m_encodedStrings[i], buf);
break;
case TIMESTAMP:
long micros = timestampToMicroseconds(obj);
buf.putLong(micros);
break;
case DECIMAL:
VoltDecimalHelper.serializeBigDecimal((BigDecimal) obj, buf);
break;
case VOLTTABLE:
((VoltTable) obj).flattenToBuffer(buf);
break;
case GEOGRAPHY_POINT:
((GeographyPointValue) obj).flattenToBuffer(buf);
break;
case GEOGRAPHY:
GeographyValue gv = (GeographyValue) obj;
buf.putInt(gv.getLengthInBytes());
gv.flattenToBuffer(buf);
break;
default:
throw new RuntimeException("FIXME: Unsupported type " + type);
}
}
}
private static OneParamInfo readOneParameter(ByteBuffer in) throws IOException {
Object value;
int len;
byte[] encodedString = null;
byte[][] encodedStringArray = null;
byte nextTypeByte = in.get();
if (nextTypeByte == ARRAY) {
VoltType nextType = null;
byte etype = in.get();
try {
nextType = VoltType.get(etype);
} catch (AssertionError ae) {
throw new RuntimeException("ParameterSet doesn't support type " + etype);
}
if (nextType == null) {
value = null;
} else if (nextType == VoltType.STRING) {
encodedStringArray = (byte[][]) SerializationHelper.readArray(byte[].class, in);
String[] sval = new String[encodedStringArray.length];
for (int i = 0; i < encodedStringArray.length; ++i) {
if (encodedStringArray[i] == null) {
sval[i] = null;
} else {
sval[i] = new String(encodedStringArray[i], Constants.UTF8ENCODING);
}
}
value = sval;
} else {
value = SerializationHelper.readArray(nextType.classFromType(), in);
}
} else {
VoltType nextType;
try {
nextType = VoltType.get(nextTypeByte);
} catch (AssertionError ae) {
throw new RuntimeException("ParameterSet doesn't support type " + nextTypeByte);
}
switch (nextType) {
case NULL:
value = null;
break;
case TINYINT:
value = in.get();
break;
case SMALLINT:
value = in.getShort();
break;
case INTEGER:
value = in.getInt();
break;
case BIGINT:
value = in.getLong();
break;
case FLOAT:
value = in.getDouble();
break;
case STRING:
len = in.getInt();
if (len == VoltType.NULL_STRING_LENGTH) {
value = VoltType.NULL_STRING_OR_VARBINARY;
} else {
encodedString = new byte[len];
in.get(encodedString);
value = new String(encodedString, Constants.UTF8ENCODING);
}
break;
case VARBINARY:
len = in.getInt();
if (len == VoltType.NULL_STRING_LENGTH) {
value = VoltType.NULL_STRING_OR_VARBINARY;
} else {
encodedString = new byte[len];
in.get(encodedString);
value = encodedString;
}
break;
case TIMESTAMP:
final long micros = in.getLong();
value = new TimestampType(micros);
break;
case VOLTTABLE:
final int tableSize = in.getInt();
byte[] tableBytes = new byte[tableSize];
in.get(tableBytes);
value =
PrivateVoltTableFactory.createVoltTableFromBuffer(ByteBuffer.wrap(tableBytes), false);
break;
case DECIMAL:
{
BigDecimal decimal_val = SerializationHelper.getBigDecimal(in);
if (decimal_val == null) {
value = VoltType.NULL_DECIMAL;
} else {
value = decimal_val;
}
break;
}
case GEOGRAPHY_POINT:
value = GeographyPointValue.unflattenFromBuffer(in);
if (value == null) {
value = VoltType.NULL_POINT;
}
break;
case GEOGRAPHY:
len = in.getInt();
if (len == VoltType.NULL_STRING_LENGTH) {
value = VoltType.NULL_GEOGRAPHY;
} else {
value = GeographyValue.unflattenFromBuffer(in);
}
break;
case BOOLEAN:
value = in.get();
break;
default:
throw new RuntimeException("ParameterSet doesn't support type " + nextType);
}
}
OneParamInfo retval = new OneParamInfo();
retval.value = value;
retval.encodedString = encodedString;
retval.encodedStringArray = encodedStringArray;
return retval;
}
