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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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 org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection;
import androidx.annotation.Nullable;
import java.util.Arrays;
import org.checkerframework.checker.nullness.compatqual.NullableType;
/** An array of {@link TrackSelection}s. */
public final class TrackSelectionArray {
/** The length of this array. */
public final int length;
private final @NullableType TrackSelection[] trackSelections;
// Lazily initialized hashcode.
private int hashCode;
/** @param trackSelections The selections. Must not be null, but may contain null elements. */
public TrackSelectionArray(@NullableType TrackSelection... trackSelections) {
this.trackSelections = trackSelections;
this.length = trackSelections.length;
}
/**
* Returns the selection at a given index.
*
* @param index The index of the selection.
* @return The selection.
*/
@Nullable
public TrackSelection get(int index) {
return trackSelections[index];
}
/** Returns the selections in a newly allocated array. */
public @NullableType TrackSelection[] getAll() {
return trackSelections.clone();
}
@Override
public int hashCode() {
if (hashCode == 0) {
int result = 17;
result = 31 * result + Arrays.hashCode(trackSelections);
hashCode = result;
}
return hashCode;
}
@Override
public boolean equals(@Nullable Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
TrackSelectionArray other = (TrackSelectionArray) obj;
return Arrays.equals(trackSelections, other.trackSelections);
}
}
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