// This file has been automatically generated, DO NOT EDIT

/*
 * 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.lucene.util.packed;

import org.apache.lucene.store.DataInput;
import org.apache.lucene.util.RamUsageEstimator;

import java.io.IOException;
import java.util.Arrays;

Direct wrapping of 32-bits values to a backing array.
@lucene.internal
/** * Direct wrapping of 32-bits values to a backing array. * @lucene.internal */
final class Direct32 extends PackedInts.MutableImpl { final int[] values; Direct32(int valueCount) { super(valueCount, 32); values = new int[valueCount]; } Direct32(int packedIntsVersion, DataInput in, int valueCount) throws IOException { this(valueCount); for (int i = 0; i < valueCount; ++i) { values[i] = in.readInt(); } // because packed ints have not always been byte-aligned final int remaining = (int) (PackedInts.Format.PACKED.byteCount(packedIntsVersion, valueCount, 32) - 4L * valueCount); for (int i = 0; i < remaining; ++i) { in.readByte(); } } @Override public long get(final int index) { return values[index] & 0xFFFFFFFFL; } @Override public void set(final int index, final long value) { values[index] = (int) (value); } @Override public long ramBytesUsed() { return RamUsageEstimator.alignObjectSize( RamUsageEstimator.NUM_BYTES_OBJECT_HEADER + 2 * Integer.BYTES // valueCount,bitsPerValue + RamUsageEstimator.NUM_BYTES_OBJECT_REF) // values ref + RamUsageEstimator.sizeOf(values); } @Override public void clear() { Arrays.fill(values, (int) 0L); } @Override public int get(int index, long[] arr, int off, int len) { assert len > 0 : "len must be > 0 (got " + len + ")"; assert index >= 0 && index < valueCount; assert off + len <= arr.length; final int gets = Math.min(valueCount - index, len); for (int i = index, o = off, end = index + gets; i < end; ++i, ++o) { arr[o] = values[i] & 0xFFFFFFFFL; } return gets; } @Override public int set(int index, long[] arr, int off, int len) { assert len > 0 : "len must be > 0 (got " + len + ")"; assert index >= 0 && index < valueCount; assert off + len <= arr.length; final int sets = Math.min(valueCount - index, len); for (int i = index, o = off, end = index + sets; i < end; ++i, ++o) { values[i] = (int) arr[o]; } return sets; } @Override public void fill(int fromIndex, int toIndex, long val) { assert val == (val & 0xFFFFFFFFL); Arrays.fill(values, fromIndex, toIndex, (int) val); } }