package com.datastax.oss.driver.internal.core.data;
import com.datastax.oss.driver.api.core.ProtocolVersion;
import com.datastax.oss.driver.api.core.cql.ColumnDefinitions;
import com.datastax.oss.driver.api.core.metadata.token.Token;
import com.datastax.oss.driver.api.core.type.DataType;
import com.datastax.oss.driver.api.core.type.codec.TypeCodec;
import com.datastax.oss.driver.api.core.type.codec.TypeCodecs;
import com.datastax.oss.driver.api.core.type.codec.registry.CodecRegistry;
import com.datastax.oss.driver.internal.core.metadata.token.ByteOrderedToken;
import com.datastax.oss.driver.internal.core.metadata.token.Murmur3Token;
import com.datastax.oss.driver.internal.core.metadata.token.RandomToken;
import com.datastax.oss.driver.shaded.guava.common.base.Preconditions;
import com.datastax.oss.protocol.internal.ProtocolConstants;
import java.nio.ByteBuffer;
import java.util.List;
public class ValuesHelper {
public static ByteBuffer[] encodeValues(
Object[] values,
List<DataType> fieldTypes,
CodecRegistry codecRegistry,
ProtocolVersion protocolVersion) {
Preconditions.checkArgument(
values.length <= fieldTypes.size(),
"Too many values (expected %s, got %s)",
fieldTypes.size(),
values.length);
ByteBuffer[] encodedValues = new ByteBuffer[fieldTypes.size()];
for (int i = 0; i < values.length; i++) {
Object value = values[i];
ByteBuffer encodedValue;
if (value instanceof Token) {
if (value instanceof Murmur3Token) {
encodedValue =
TypeCodecs.BIGINT.encode(((Murmur3Token) value).getValue(), protocolVersion);
} else if (value instanceof ByteOrderedToken) {
encodedValue =
TypeCodecs.BLOB.encode(((ByteOrderedToken) value).getValue(), protocolVersion);
} else if (value instanceof RandomToken) {
encodedValue =
TypeCodecs.VARINT.encode(((RandomToken) value).getValue(), protocolVersion);
} else {
throw new IllegalArgumentException("Unsupported token type " + value.getClass());
}
} else {
TypeCodec<Object> codec =
(value == null)
? codecRegistry.codecFor(fieldTypes.get(i))
: codecRegistry.codecFor(fieldTypes.get(i), value);
encodedValue = codec.encode(value, protocolVersion);
}
encodedValues[i] = encodedValue;
}
return encodedValues;
}
public static ByteBuffer[] encodePreparedValues(
Object[] values,
ColumnDefinitions variableDefinitions,
CodecRegistry codecRegistry,
ProtocolVersion protocolVersion) {
Preconditions.checkArgument(
values.length <= variableDefinitions.size(),
"Too many variables (expected %s, got %s)",
variableDefinitions.size(),
values.length);
ByteBuffer[] encodedValues = new ByteBuffer[variableDefinitions.size()];
int i;
for (i = 0; i < values.length; i++) {
Object value = values[i];
ByteBuffer encodedValue;
if (value instanceof Token) {
if (value instanceof Murmur3Token) {
encodedValue =
TypeCodecs.BIGINT.encode(((Murmur3Token) value).getValue(), protocolVersion);
} else if (value instanceof ByteOrderedToken) {
encodedValue =
TypeCodecs.BLOB.encode(((ByteOrderedToken) value).getValue(), protocolVersion);
} else if (value instanceof RandomToken) {
encodedValue =
TypeCodecs.VARINT.encode(((RandomToken) value).getValue(), protocolVersion);
} else {
throw new IllegalArgumentException("Unsupported token type " + value.getClass());
}
} else {
TypeCodec<Object> codec =
(value == null)
? codecRegistry.codecFor(variableDefinitions.get(i).getType())
: codecRegistry.codecFor(variableDefinitions.get(i).getType(), value);
encodedValue = codec.encode(value, protocolVersion);
}
encodedValues[i] = encodedValue;
}
for (; i < encodedValues.length; i++) {
encodedValues[i] = ProtocolConstants.UNSET_VALUE;
}
return encodedValues;
}
}