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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package com.datastax.dse.driver.internal.core.graph.binary;
import com.datastax.oss.driver.api.core.data.TupleValue;
import com.datastax.oss.driver.api.core.type.DataType;
import com.datastax.oss.driver.api.core.type.TupleType;
import com.datastax.oss.driver.internal.core.context.DefaultDriverContext;
import java.io.IOException;
import org.apache.tinkerpop.gremlin.structure.io.Buffer;
import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryReader;
import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryWriter;
public class TupleValueSerializer extends AbstractDynamicGraphBinaryCustomSerializer {
private final DefaultDriverContext driverContext;
public TupleValueSerializer(DefaultDriverContext driverContext) {
this.driverContext = driverContext;
}
@Override
public String getTypeName() {
return GraphBinaryModule.GRAPH_BINARY_TUPLE_VALUE_TYPE_NAME;
}
@Override
public TupleValue readDynamicCustomValue(Buffer buffer, GraphBinaryReader context)
throws IOException {
// read the type first
DataType type = ComplexTypeSerializerUtil.decodeTypeDefinition(buffer, driverContext);
assert type instanceof TupleType
: "GraphBinary TupleValue deserializer was called on a value that is not encoded as a TupleValue.";
TupleType tupleType = (TupleType) type;
TupleValue value = tupleType.newValue();
// then decode the values from the buffer
return ComplexTypeSerializerUtil.decodeValue(
buffer, value, tupleType.getComponentTypes().size());
}
@Override
public void writeDynamicCustomValue(TupleValue value, Buffer buffer, GraphBinaryWriter context)
throws IOException {
// write type first in native protocol
ComplexTypeSerializerUtil.encodeTypeDefinition(value.getType(), buffer, driverContext);
// write value after
ComplexTypeSerializerUtil.encodeValue(value, buffer);
}
}