content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  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) {
  
      // Almost same as encodeValues, but we can't reuse because of variableDefinitions. Rebuilding a
      // list of datatypes is not worth it, so duplicate the code.
  
      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;
    }
  
    public static ByteBuffer encodeToDefaultCqlMapping(
        Object value, CodecRegistry codecRegistry, ProtocolVersion protocolVersion) {
      if (value instanceof Token) {
        if (value instanceof Murmur3Token) {
          return TypeCodecs.BIGINT.encode(((Murmur3Token) value).getValue(), protocolVersion);
        } else if (value instanceof ByteOrderedToken) {
          return TypeCodecs.BLOB.encode(((ByteOrderedToken) value).getValue(), protocolVersion);
        } else if (value instanceof RandomToken) {
          return TypeCodecs.VARINT.encode(((RandomToken) value).getValue(), protocolVersion);
        } else {
          throw new IllegalArgumentException("Unsupported token type " + value.getClass());
        }
      } else {
        return codecRegistry.codecFor(value).encode(value, protocolVersion);
      }
    }
  }
  