Add PreloadException with initial subset of error codes

As the first version, the error codes only include the miscellaneous and IO errors, but are likely to be extended.

PiperOrigin-RevId: 648466385
This commit is contained in:
tianyifeng 2024-07-01 13:21:37 -07:00 committed by Copybara-Service
parent 711d18de03
commit 7fb6eee920
2 changed files with 202 additions and 0 deletions

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/*
* Copyright 2024 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
*
* https://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 androidx.media3.exoplayer.source.preload;
import androidx.annotation.Nullable;
import androidx.media3.common.MediaItem;
import androidx.media3.common.util.UnstableApi;
import java.util.Objects;
/** Thrown when a non-recoverable preload failure occurs. */
@UnstableApi
public final class PreloadException extends Exception {
/** The {@link MediaItem} that this instance is associated with. */
public final MediaItem mediaItem;
/**
* Creates an instance.
*
* @param mediaItem The {@link MediaItem} that this instance is associated with.
* @param message See {@link #getMessage()}.
* @param cause See {@link #getCause()}.
*/
public PreloadException(
MediaItem mediaItem, @Nullable String message, @Nullable Throwable cause) {
super(message, cause);
this.mediaItem = mediaItem;
}
/**
* Returns whether the error data associated to this exception equals the error data associated to
* {@code other}.
*
* <p>Note that this method does not compare the exceptions' stack traces.
*/
public boolean errorInfoEquals(@Nullable PreloadException other) {
if (this == other) {
return true;
}
if (other == null || getClass() != other.getClass()) {
return false;
}
@Nullable Throwable thisCause = getCause();
@Nullable Throwable thatCause = other.getCause();
if (thisCause != null && thatCause != null) {
if (!Objects.equals(thisCause.getMessage(), thatCause.getMessage())) {
return false;
}
if (!Objects.equals(thisCause.getClass(), thatCause.getClass())) {
return false;
}
} else if (thisCause != null || thatCause != null) {
return false;
}
return Objects.equals(mediaItem, other.mediaItem)
&& Objects.equals(getMessage(), other.getMessage());
}
}

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/*
* Copyright 2024 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
*
* https://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 androidx.media3.exoplayer.source.preload;
import static com.google.common.truth.Truth.assertThat;
import androidx.media3.common.MediaItem;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
import org.junit.Test;
import org.junit.runner.RunWith;
/** Unit test for {@link PreloadException}. */
@RunWith(AndroidJUnit4.class)
public final class PreloadExceptionTest {
@Test
public void errorInfoEquals_withSameInstance_shouldReturnTrue() {
PreloadException preloadException =
new PreloadException(
new MediaItem.Builder().setMediaId("testId").build(),
"Preload error",
new IOException("cause message"));
assertThat(preloadException.errorInfoEquals(preloadException)).isTrue();
}
@Test
public void errorInfoEquals_withSameInfo_shouldReturnTrue() {
MediaItem mediaItem = new MediaItem.Builder().setMediaId("testId").build();
IOException exception1 = new IOException("cause message");
PreloadException preloadException1 =
new PreloadException(mediaItem, "Preload error", exception1);
IOException exception2 = new IOException("cause message");
PreloadException preloadException2 =
new PreloadException(mediaItem, "Preload error", exception2);
assertThat(preloadException1.errorInfoEquals(preloadException2)).isTrue();
}
@Test
public void errorInfoEquals_withNull_shouldReturnFalse() {
PreloadException preloadException =
new PreloadException(
new MediaItem.Builder().setMediaId("testId").build(),
"Preload error",
new Exception("Cause message"));
assertThat(preloadException.errorInfoEquals(null)).isFalse();
}
@Test
public void errorInfoEquals_withNonEqualCauseMessage_shouldReturnFalse() {
MediaItem mediaItem = new MediaItem.Builder().setMediaId("testId").build();
IOException exception1 = new IOException("cause message");
PreloadException preloadException1 =
new PreloadException(mediaItem, "Preload error", exception1);
IOException exception2 = new IOException("other cause message");
PreloadException preloadException2 =
new PreloadException(mediaItem, "Preload error", exception2);
assertThat(preloadException1.errorInfoEquals(preloadException2)).isFalse();
}
@Test
public void errorInfoEquals_withDifferentCauseExceptionType_shouldReturnFalse() {
MediaItem mediaItem = new MediaItem.Builder().setMediaId("testId").build();
IOException exception1 = new IOException("cause message");
PreloadException preloadException1 =
new PreloadException(mediaItem, "Preload error", exception1);
TimeoutException exception2 = new TimeoutException("cause message");
PreloadException preloadException2 =
new PreloadException(mediaItem, "Preload error", exception2);
assertThat(preloadException1.errorInfoEquals(preloadException2)).isFalse();
}
@Test
public void errorInfoEquals_withNullCause_shouldReturnFalse() {
MediaItem mediaItem = new MediaItem.Builder().setMediaId("testId").build();
IOException exception1 = new IOException("cause message");
PreloadException preloadException1 =
new PreloadException(mediaItem, "Preload error", exception1);
PreloadException preloadException2 =
new PreloadException(mediaItem, "Preload error", /* cause= */ null);
assertThat(preloadException1.errorInfoEquals(preloadException2)).isFalse();
}
@Test
public void errorInfoEquals_withNonEqualMediaItem_shouldReturnFalse() {
PreloadException preloadException1 =
new PreloadException(
new MediaItem.Builder().setMediaId("testId1").build(),
"Preload error",
new IOException("cause message"));
PreloadException preloadException2 =
new PreloadException(
new MediaItem.Builder().setMediaId("testId2").build(),
"Preload error",
new IOException("cause message"));
assertThat(preloadException1.errorInfoEquals(preloadException2)).isFalse();
}
@Test
public void errorInfoEquals_withNonEqualMessage_shouldReturnFalse() {
MediaItem mediaItem = new MediaItem.Builder().setMediaId("testId").build();
PreloadException preloadException1 =
new PreloadException(mediaItem, "Preload error", new IOException("cause message"));
PreloadException preloadException2 =
new PreloadException(mediaItem, "Other preload error", new IOException("cause message"));
assertThat(preloadException1.errorInfoEquals(preloadException2)).isFalse();
}
}