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Add failureReason to DownloadState

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PiperOrigin-RevId: 225154121
This commit is contained in:
eguven 2018-12-12 11:01:48 +00:00 committed by Oliver Woodman
parent 4bf42bd2ad
commit 8cedfc46fb
2 changed files with 43 additions and 14 deletions
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45
library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadManager.java
View File

@ -15,6 +15,8 @@
*/
package com.google.android.exoplayer2.offline;
import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.FAILURE_REASON_NONE;
import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.FAILURE_REASON_UNKNOWN;
import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.STATE_COMPLETED;
import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.STATE_FAILED;
import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.STATE_QUEUED;
@ -461,6 +463,16 @@ public final class DownloadManager {
/** The download failed. */
public static final int STATE_FAILED = 3;
/** Failure reasons. Either {@link #FAILURE_REASON_NONE} or {@link #FAILURE_REASON_UNKNOWN}. */
@Documented
@Retention(RetentionPolicy.SOURCE)
@IntDef({FAILURE_REASON_NONE, FAILURE_REASON_UNKNOWN})
public @interface FailureReason {}
/** The download isn't failed. */
public static final int FAILURE_REASON_NONE = 0;
/** The download is failed because of unknown reason. */
public static final int FAILURE_REASON_UNKNOWN = 1;
/** Returns the state string for the given state value. */
public static String getStateString(@State int state) {
switch (state) {
@ -477,6 +489,18 @@ public final class DownloadManager {
}
}
/** Returns the failure string for the given failure reason value. */
public static String getFailureString(@FailureReason int failureReason) {
switch (failureReason) {
case FAILURE_REASON_NONE:
return "NO_REASON";
case FAILURE_REASON_UNKNOWN:
return "UNKNOWN_REASON";
default:
throw new IllegalStateException();
}
}
/** The unique download id. */
public final int id;
/** The action being executed. */
@ -493,8 +517,11 @@ public final class DownloadManager {
/** The total size of the media, or {@link C#LENGTH_UNSET} if unknown. */
public final long totalBytes;
/** If {@link #state} is {@link #STATE_FAILED} then this is the cause, otherwise null. */
@Nullable public final Throwable error;
/**
* If {@link #state} is {@link #STATE_FAILED} then this is the cause, otherwise {@link
* #FAILURE_REASON_NONE}.
*/
@FailureReason public final int failureReason;
private DownloadState(
int id,
@ -503,14 +530,16 @@ public final class DownloadManager {
float downloadPercentage,
long downloadedBytes,
long totalBytes,
@Nullable Throwable error) {
@FailureReason int failureReason) {
Assertions.checkState(
failureReason == FAILURE_REASON_NONE ? state != STATE_FAILED : state == STATE_FAILED);
this.id = id;
this.action = action;
this.state = state;
this.downloadPercentage = downloadPercentage;
this.downloadedBytes = downloadedBytes;
this.totalBytes = totalBytes;
this.error = error;
this.failureReason = failureReason;
}
}
@ -539,7 +568,7 @@ public final class DownloadManager {
@MonotonicNonNull private Downloader downloader;
@MonotonicNonNull private DownloadThread downloadThread;
@MonotonicNonNull private Throwable error;
@MonotonicNonNull @DownloadState.FailureReason private int failureReason;
private Download(
int id,
@ -586,7 +615,7 @@ public final class DownloadManager {
totalBytes = downloader.getTotalBytes();
}
return new DownloadState(
id, action, state, downloadPercentage, downloadedBytes, totalBytes, error);
id, action, state, downloadPercentage, downloadedBytes, totalBytes, failureReason);
}
/** Returns whether the download is finished. */
@ -642,11 +671,11 @@ public final class DownloadManager {
private void onDownloadThreadStopped(@Nullable Throwable finalError) {
state = targetState;
error = null;
failureReason = FAILURE_REASON_NONE;
if (targetState == STATE_COMPLETED) {
if (finalError != null) {
state = STATE_FAILED;
error = finalError;
failureReason = FAILURE_REASON_UNKNOWN;
} else {
actionQueue.remove();
if (!actionQueue.isEmpty()) {

12
testutils_robolectric/src/main/java/com/google/android/exoplayer2/testutil/TestDownloadManagerListener.java
View File

@ -34,7 +34,7 @@ public final class TestDownloadManagerListener implements DownloadManager.Listen
private final HashMap<Integer, ArrayBlockingQueue<Integer>> actionStates;
private CountDownLatch downloadFinishedCondition;
private Throwable downloadError;
@DownloadState.FailureReason private int failureReason;
public TestDownloadManagerListener(
DownloadManager downloadManager, DummyMainThread dummyMainThread) {
@ -48,7 +48,7 @@ public final class TestDownloadManagerListener implements DownloadManager.Listen
}
public void clearDownloadError() {
this.downloadError = null;
this.failureReason = DownloadState.FAILURE_REASON_NONE;
}
@Override
@ -58,8 +58,8 @@ public final class TestDownloadManagerListener implements DownloadManager.Listen
@Override
public void onDownloadStateChanged(DownloadManager downloadManager, DownloadState downloadState) {
if (downloadState.state == DownloadState.STATE_FAILED && downloadError == null) {
downloadError = downloadState.error;
if (downloadState.state == DownloadState.STATE_FAILED) {
failureReason = downloadState.failureReason;
}
getStateQueue(downloadState.id).add(downloadState.state);
}
@ -77,8 +77,8 @@ public final class TestDownloadManagerListener implements DownloadManager.Listen
*/
public void blockUntilTasksCompleteAndThrowAnyDownloadError() throws Throwable {
blockUntilTasksComplete();
if (downloadError != null) {
throw new Exception(downloadError);
if (failureReason != DownloadState.FAILURE_REASON_NONE) {
throw new Exception("Failure reason: " + DownloadState.getFailureString(failureReason));
}
}