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(){}
private static final int BOOL_SIZE = 1;
private static final int BYTE_SIZE = 1;
private static final int SHORT_SIZE = 2;
private static final int INT_SIZE = 4;
private static final int LONG_SIZE = 8;
private static final int UUID_SIZE = 16;
public static int sizeof(String value)
{
int length = encodedUTF8Length(value);
assert length <= Short.MAX_VALUE;
return sizeof((short) length) + length;
}
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();
}
public static int sizeof(boolean value)
{
return BOOL_SIZE;
}
public static int sizeof(byte value)
{
return BYTE_SIZE;
}
public static int sizeof(short value)
{
return SHORT_SIZE;
}
public static int sizeof(int value)
{
return INT_SIZE;
}
public static int sizeof(long value)
{
return LONG_SIZE;
}
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);
}
}