@Override
public void open() {
String currentSchema = context.getCurrentSchema();
String schemaName, tableName;
ValueSource value = valueNotNull(0);
if (value == null) schemaName = currentSchema;
else schemaName = value.getString();
tableName = bindings.getValue(1).getString();
TableName groupName = new TableName(schemaName, tableName);
Group group = context.getStore().schema().ais().getGroup(groupName);
if (group == null) throw new NoSuchGroupException(groupName);
StorageDescription storage = group.getStorageDescription();
if (!(storage instanceof ProtobufStorageDescription))
throw new InvalidParameterValueException("group does not use STORAGE_FORMAT protobuf");
FileDescriptorProto fileProto = ((ProtobufStorageDescription) storage).getFileProto();
try {
tempFile = File.createTempFile("group", ".proto");
try (FileWriter writer = new FileWriter(tempFile)) {
new ProtobufDecompiler(writer).decompile(fileProto);
}
reader = new BufferedReader(new FileReader(tempFile));
} catch (IOException ex) {
throw new AkibanInternalException("decompiling error", ex);
}
messagesSent = 0;
}
@Override
public void open() {
TAP_OPEN.in();
try {
if (isSkipBinding()) {
ValueSource value = bindings.getValue(skip());
if (!value.isNull()) this.skipLeft = value.getInt32();
} else {
this.skipLeft = skip();
}
if (skipLeft < 0) throw new NegativeLimitException("OFFSET", skipLeft);
if (isLimitBinding()) {
ValueSource value = bindings.getValue(limit());
if (value.isNull()) this.limitLeft = Integer.MAX_VALUE;
else {
TInstance type = MNumeric.INT.instance(true);
TExecutionContext executionContext = new TExecutionContext(null, type, context);
Value ivalue = new Value(MNumeric.INT.instance(true));
MNumeric.INT.fromObject(executionContext, value, ivalue);
this.limitLeft = ivalue.getInt32();
}
} else {
this.limitLeft = limit();
}
if (limitLeft < 0) throw new NegativeLimitException("LIMIT", limitLeft);
super.open();
} finally {
TAP_OPEN.out();
}
}
protected ValueSource valueNotNull(int index) {
try {
ValueSource value = bindings.getValue(index);
if (value.isNull()) return null;
else return value;
} catch (BindingNotSetException ex) {
return null;
}
}
public ConstantExpression evalNow(PlanContext planContext, ExpressionNode node) {
if (node instanceof ConstantExpression) return (ConstantExpression) node;
TPreparedExpression expr = assembleExpression(node, null, null);
TPreptimeValue preptimeValue = expr.evaluateConstant(planContext.getQueryContext());
if (preptimeValue == null)
throw new AkibanInternalException("required constant expression: " + expr);
ValueSource valueSource = preptimeValue.value();
if (valueSource == null)
throw new AkibanInternalException("required constant expression: " + expr);
if (node instanceof ConditionExpression) {
Boolean value = valueSource.isNull() ? null : valueSource.getBoolean();
return new BooleanConstantExpression(value);
} else {
return new ConstantExpression(preptimeValue);
}
}
protected boolean tryFromObject(TExecutionContext context, ValueSource in, ValueTarget out) {
if (in.getType().equalsExcludingNullable(out.getType())) {
ValueTargets.copyFrom(in, out);
return true;
}
UnderlyingType underlyingType = TInstance.underlyingType(in.getType());
if (underlyingType == UnderlyingType.STRING || underlyingType == UnderlyingType.BYTES)
return false;
final String asString;
switch (underlyingType) {
case BOOL:
asString = Boolean.toString(in.getBoolean());
break;
case INT_8:
asString = Byte.toString(in.getInt8());
break;
case INT_16:
asString = Short.toString(in.getInt16());
break;
case UINT_16:
asString = Integer.toString(in.getUInt16());
break;
case INT_32:
asString = Integer.toString(in.getInt32());
break;
case INT_64:
asString = Long.toString(in.getInt64());
break;
case FLOAT:
asString = Float.toString(in.getFloat());
break;
case DOUBLE:
asString = Double.toString(in.getDouble());
break;
case BYTES:
case STRING:
default:
throw new AssertionError(underlyingType + ": " + in);
}
parser.parse(context, new Value(MString.varcharFor(asString), asString), out);
return true;
}
/**
* Encode the given value into a stream that can then be passed to <code>writeByteStream</code>.
*/
public ByteArrayOutputStream encodeValue(ValueSource value, ServerType type, boolean binary)
throws IOException {
if (value.isNull()) return null;
if ((zeroDateTimeBehavior != ZeroDateTimeBehavior.NONE)
&& (((type.getType().typeClass() == MDateAndTime.DATE) && (value.getInt32() == 0))
|| ((type.getType().typeClass() == MDateAndTime.DATETIME)
&& (value.getInt64() == 0)))) {
switch (zeroDateTimeBehavior) {
case EXCEPTION:
throw new ZeroDateTimeException();
case ROUND:
value =
(type.getType().typeClass() == MDateAndTime.DATETIME)
? ROUND_ZERO_DATETIME_SOURCE
: ROUND_ZERO_DATE_SOURCE;
break;
case CONVERT_TO_NULL:
return null;
}
}
reset();
appendValue(value, type, binary);
return getByteStream();
}
/** Give a <code>ValueSource</code> whose {@link #jdbcType} claims
* to be one of the integer types (<code>TINYINT</code>,
* <code>SMALLINT</code>, <code>INTEGER</code>,
* <code>BIGINT<code>), get the integer value. Needed because of
* <code>UNSIGNED</code> and <code>YEAR</code> types.
*/
public long getIntegerValue(ValueSource value) {
switch (TInstance.underlyingType(value.getType())) {
case INT_8:
return value.getInt8();
case INT_16:
return value.getInt16();
case UINT_16:
return value.getUInt16();
case INT_32:
return value.getInt32();
case INT_64:
default:
return value.getInt64();
}
}
/**
* Give a <code>ValueSource</code> whose {@link #jdbcType} claims to be one of the decimal types (
* <code>DECIMAL</code>, <code>NUMERIC</code>), get the decimal value.
*/
public BigDecimal getDecimalValue(ValueSource value) {
return TBigDecimal.getWrapper(value, value.getType()).asBigDecimal();
}
private void processBinaryText(ValueSource value) {
FormatOptions.BinaryFormatOption bfo = options.get(FormatOptions.BinaryFormatOption.class);
String formattedString = bfo.format(value.getBytes());
printWriter.append(formattedString);
}
/** Append the given value to the buffer. */
public void appendValue(ValueSource value, ServerType type, boolean binary) throws IOException {
if (!binary) {
// Handle unusual text encoding of binary types.
switch (type.getBinaryEncoding()) {
case BINARY_OCTAL_TEXT:
processBinaryText(value);
break;
default:
type.getType().format(value, appender);
break;
}
} else {
switch (type.getBinaryEncoding()) {
case BINARY_OCTAL_TEXT:
getByteStream().write(value.getBytes());
break;
case INT_8:
getDataStream().write((byte) typesTranslator.getIntegerValue(value));
break;
case INT_16:
getDataStream().writeShort((short) typesTranslator.getIntegerValue(value));
break;
case INT_32:
getDataStream().writeInt((int) typesTranslator.getIntegerValue(value));
break;
case INT_64:
getDataStream().writeLong(typesTranslator.getIntegerValue(value));
break;
case FLOAT_32:
getDataStream().writeFloat(value.getFloat());
break;
case FLOAT_64:
getDataStream().writeDouble(value.getDouble());
break;
case STRING_BYTES:
getByteStream().write(value.getString().getBytes(encoding));
break;
case BOOLEAN_C:
getDataStream().write(value.getBoolean() ? 1 : 0);
break;
case TIMESTAMP_FLOAT64_SECS_2000_NOTZ:
getDataStream()
.writeDouble(
seconds2000NoTZ(typesTranslator.getTimestampMillisValue(value))
+ typesTranslator.getTimestampNanosValue(value) / 1.0e9);
break;
case TIMESTAMP_INT64_MICROS_2000_NOTZ:
getDataStream()
.writeLong(
seconds2000NoTZ(typesTranslator.getTimestampMillisValue(value)) * 1000000L
+ typesTranslator.getTimestampNanosValue(value) / 1000);
break;
case DAYS_2000:
getDataStream().writeInt(days2000(typesTranslator.getTimestampMillisValue(value)));
break;
case TIME_FLOAT64_SECS_NOTZ:
getDataStream().writeDouble(timeSecsNoTZ(typesTranslator.getTimestampMillisValue(value)));
break;
case TIME_INT64_MICROS_NOTZ:
getDataStream()
.writeLong(timeSecsNoTZ(typesTranslator.getTimestampMillisValue(value)) * 1000000L);
break;
case DECIMAL_PG_NUMERIC_VAR:
for (short d : pgNumericVar(typesTranslator.getDecimalValue(value))) {
getDataStream().writeShort(d);
}
break;
case UUID:
getDataStream().write(AkGUID.uuidToBytes((java.util.UUID) value.getObject()));
break;
case NONE:
default:
throw new UnsupportedOperationException("No binary encoding for " + type);
}
}
}
@Override
public void fromObject(TExecutionContext context, ValueSource in, ValueTarget out) {
if (in.isNull()) out.putNull();
else if (!tryFromObject(context, in, out)) parser.parse(context, in, out);
}