/**
* Stores the provided {@code value} to the provided byte {@code buffer} at the specified {@code
* index} using the provided {@code wordSize} in bytes. Note that only integer and short sizes are
* supported.
*
* @param buffer the byte buffer to which the value is stored
* @param wordSize the number of bytes used to store the provided value
* @param index the index to which the value is stored
* @param value the value that is stored assuming it does not require more than the specified
* number of bytes.
*/
private static void storeWordInBuffer(ByteBuffer buffer, int wordSize, int index, int value)
{
int wordIndex = index * wordSize;
if (wordSize == SHORT_NUM_BYTES) {
buffer.putShort(wordIndex, (short) value);
} else {
buffer.putInt(wordIndex, value);
}
}
/**
* Stores a value which is read from the provided {@code objectInput} to the provided byte {@code
* buffer} at the specified {@code index}.
*
* @param objectInput the object input stream from which the value is read
* @param wordSize the number of bytes used to store the value read from the stream
* @param outputBuffer the byte buffer to which the value is stored
* @param index the index where the value is stored in the buffer
* @throws IOException if an error occurred reading from the object input stream
*/
private static void readExternalWord(ObjectInput objectInput, int wordSize,
ByteBuffer outputBuffer, int index)
{
int wordIndex = index * wordSize;
if (wordSize == SHORT_NUM_BYTES) {
outputBuffer.putShort(wordIndex, objectInput.readShort());
} else {
outputBuffer.putInt(wordIndex, objectInput.readInt());
}
}