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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; 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_COMPLETED;
import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.STATE_FAILED; import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.STATE_FAILED;
import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.STATE_QUEUED; import static com.google.android.exoplayer2.offline.DownloadManager.DownloadState.STATE_QUEUED;
@ -461,6 +463,16 @@ public final class DownloadManager {
/** The download failed. */ /** The download failed. */
public static final int STATE_FAILED = 3; 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. */ /** Returns the state string for the given state value. */
public static String getStateString(@State int state) { public static String getStateString(@State int state) {
switch (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. */ /** The unique download id. */
public final int id; public final int id;
/** The action being executed. */ /** 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. */ /** The total size of the media, or {@link C#LENGTH_UNSET} if unknown. */
public final long totalBytes; 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( private DownloadState(
int id, int id,
@ -503,14 +530,16 @@ public final class DownloadManager {
float downloadPercentage, float downloadPercentage,
long downloadedBytes, long downloadedBytes,
long totalBytes, long totalBytes,
@Nullable Throwable error) { @FailureReason int failureReason) {
Assertions.checkState(
failureReason == FAILURE_REASON_NONE ? state != STATE_FAILED : state == STATE_FAILED);
this.id = id; this.id = id;
this.action = action; this.action = action;
this.state = state; this.state = state;
this.downloadPercentage = downloadPercentage; this.downloadPercentage = downloadPercentage;
this.downloadedBytes = downloadedBytes; this.downloadedBytes = downloadedBytes;
this.totalBytes = totalBytes; this.totalBytes = totalBytes;
this.error = error; this.failureReason = failureReason;
} }
} }
@ -539,7 +568,7 @@ public final class DownloadManager {
@MonotonicNonNull private Downloader downloader; @MonotonicNonNull private Downloader downloader;
@MonotonicNonNull private DownloadThread downloadThread; @MonotonicNonNull private DownloadThread downloadThread;
@MonotonicNonNull private Throwable error; @MonotonicNonNull @DownloadState.FailureReason private int failureReason;
private Download( private Download(
int id, int id,
@ -586,7 +615,7 @@ public final class DownloadManager {
totalBytes = downloader.getTotalBytes(); totalBytes = downloader.getTotalBytes();
} }
return new DownloadState( return new DownloadState(
id, action, state, downloadPercentage, downloadedBytes, totalBytes, error); id, action, state, downloadPercentage, downloadedBytes, totalBytes, failureReason);
} }
/** Returns whether the download is finished. */ /** Returns whether the download is finished. */
@ -642,11 +671,11 @@ public final class DownloadManager {
private void onDownloadThreadStopped(@Nullable Throwable finalError) { private void onDownloadThreadStopped(@Nullable Throwable finalError) {
state = targetState; state = targetState;
error = null; failureReason = FAILURE_REASON_NONE;
if (targetState == STATE_COMPLETED) { if (targetState == STATE_COMPLETED) {
if (finalError != null) { if (finalError != null) {
state = STATE_FAILED; state = STATE_FAILED;
error = finalError; failureReason = FAILURE_REASON_UNKNOWN;
} else { } else {
actionQueue.remove(); actionQueue.remove();
if (!actionQueue.isEmpty()) { 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 final HashMap<Integer, ArrayBlockingQueue<Integer>> actionStates;
private CountDownLatch downloadFinishedCondition; private CountDownLatch downloadFinishedCondition;
private Throwable downloadError; @DownloadState.FailureReason private int failureReason;
public TestDownloadManagerListener( public TestDownloadManagerListener(
DownloadManager downloadManager, DummyMainThread dummyMainThread) { DownloadManager downloadManager, DummyMainThread dummyMainThread) {
@ -48,7 +48,7 @@ public final class TestDownloadManagerListener implements DownloadManager.Listen
} }
public void clearDownloadError() { public void clearDownloadError() {
this.downloadError = null; this.failureReason = DownloadState.FAILURE_REASON_NONE;
} }
@Override @Override
@ -58,8 +58,8 @@ public final class TestDownloadManagerListener implements DownloadManager.Listen
@Override @Override
public void onDownloadStateChanged(DownloadManager downloadManager, DownloadState downloadState) { public void onDownloadStateChanged(DownloadManager downloadManager, DownloadState downloadState) {
if (downloadState.state == DownloadState.STATE_FAILED && downloadError == null) { if (downloadState.state == DownloadState.STATE_FAILED) {
downloadError = downloadState.error; failureReason = downloadState.failureReason;
} }
getStateQueue(downloadState.id).add(downloadState.state); getStateQueue(downloadState.id).add(downloadState.state);
} }
@ -77,8 +77,8 @@ public final class TestDownloadManagerListener implements DownloadManager.Listen
*/ */
public void blockUntilTasksCompleteAndThrowAnyDownloadError() throws Throwable { public void blockUntilTasksCompleteAndThrowAnyDownloadError() throws Throwable {
blockUntilTasksComplete(); blockUntilTasksComplete();
if (downloadError != null) { if (failureReason != DownloadState.FAILURE_REASON_NONE) {
throw new Exception(downloadError); throw new Exception("Failure reason: " + DownloadState.getFailureString(failureReason));
} }
} }