com.johnsnowlabs.nlp.embeddings.ReadsFromBytes.scala Maven / Gradle / Ivy

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/*
 * Copyright 2017-2022 John Snow Labs
 *
 * Licensed 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.johnsnowlabs.nlp.embeddings

import java.nio.{ByteBuffer, ByteOrder}

trait ReadsFromBytes {

  def fromBytes(source: Array[Byte]): Array[Float] = {
    val wrapper = ByteBuffer.wrap(source)
    wrapper.order(ByteOrder.LITTLE_ENDIAN)
    val result = Array.fill[Float](source.length / 4)(0f)

    for (i <- result.indices) {
      result(i) = wrapper.getFloat(i * 4)
    }
    result
  }

}