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 org.apache.cassandra.db;
  
  import java.nio.ByteBuffer;
  import java.util.UUID;
  
  import org.apache.cassandra.utils.vint.VIntCoding;
  
  public final class TypeSizes
  {
  
      private TypeSizes(){}
  
      public static final int BOOL_SIZE = 1;
      public static final int BYTE_SIZE = 1;
      public static final int CHAR_SIZE = 2;
      public static final int SHORT_SIZE = 2;
      public static final int INT_SIZE = 4;
      public static final int LONG_SIZE = 8;
      public static final int FLOAT_SIZE = 4;
      public static final int DOUBLE_SIZE = 8;
      public static final int UUID_SIZE = 16;
  
      /** assumes UTF8 */
      public static int sizeof(String value)
      {
          int length = encodedUTF8Length(value);
          assert length <= Short.MAX_VALUE;
          return sizeof((short) length) + length;
      }
  
      /**
       * Java uses a Modified UTF-8 (see {@link java.io.DataOutput#writeUTF(String)}), and this method attempts to
       * calculate the modified utf-8 length; this method only works when the utf-8 writing logic is java's modified utf-8
       * and will not work when normal utf-8 is written.
       *
       * If normal utf-8 is written, then {@link org.apache.cassandra.transport.CBUtil#encodedUTF8Length(String)} should be
       * used instread of this one.
       *
       * @see <a href="https://docs.oracle.com/en/java/javase/23/docs/api/java.base/java/io/DataInput.html#modified-utf-8">Modified UTF 8</a>
       */
      public static int encodedUTF8Length(String st)
      {
          int strlen = st.length();
          int utflen = 0;
          for (int i = 0; i < strlen; i++)
          {
              int c = st.charAt(i);
              if ((c >= 0x0001) && (c <= 0x007F))
                  utflen++;
              else if (c > 0x07FF)
                  utflen += 3;
              else
                  utflen += 2;
          }
          return utflen;
      }
  
      public static int sizeofWithShortLength(ByteBuffer value)
      {
          return sizeof((short) value.remaining()) + value.remaining();
      }
  
      public static int sizeofWithLength(ByteBuffer value)
      {
          return sizeof(value.remaining()) + value.remaining();
      }
  
      public static int sizeofWithVIntLength(ByteBuffer value)
      {
          return sizeofUnsignedVInt(value.remaining()) + value.remaining();
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(boolean value)
      {
          return BOOL_SIZE;
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(byte value)
      {
          return BYTE_SIZE;
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(short value)
      {
          return SHORT_SIZE;
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(int value)
      {
          return INT_SIZE;
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(long value)
      {
          return LONG_SIZE;
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(float value)
      {
          return FLOAT_SIZE;
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(double value)
      {
          return DOUBLE_SIZE;
      }
  
      @SuppressWarnings("unused")
      public static int sizeof(UUID value)
      {
          return UUID_SIZE;
      }
  
      public static int sizeofVInt(long value)
      {
          return VIntCoding.computeVIntSize(value);
      }
  
      public static int sizeofUnsignedVInt(long value)
      {
          return VIntCoding.computeUnsignedVIntSize(value);
      }
  }
  