Misc fixes / stylistic consistency changes for merged pull requests

extensions/cronet/src/main/java/com/google/android/exoplayer2/ext/cronet/CronetDataSource.java

@@ -616,10 +616,7 @@ public class CronetDataSource extends BaseDataSource implements HttpDataSource {
         if (responseCode == 307 || responseCode == 308) {
           exception =
               new InvalidResponseCodeException(
-                  responseCode,
-                  info.getHttpStatusText(),
-                  info.getAllHeaders(),
-                  currentDataSpec);
+                  responseCode, info.getHttpStatusText(), info.getAllHeaders(), currentDataSpec);
           operation.open();
           return;
         }

library/core/src/main/java/com/google/android/exoplayer2/upstream/HttpDataSource.java

@@ -295,9 +295,7 @@ public interface HttpDataSource extends DataSource {
      */
     public final int responseCode;
 
-    /**
-     * The HTTP status message.
-     */
+    /** The http status message. */
     @Nullable public final String responseMessage;
 
     /**
@@ -305,6 +303,13 @@ public interface HttpDataSource extends DataSource {
      */
     public final Map<String, List<String>> headerFields;
 
+    /** @deprecated Use {@link #InvalidResponseCodeException(int, String, Map, DataSpec)}. */
+    @Deprecated
+    public InvalidResponseCodeException(
+        int responseCode, Map<String, List<String>> headerFields, DataSpec dataSpec) {
+      this(responseCode, /* responseMessage= */ null, headerFields, dataSpec);
+    }
+
     public InvalidResponseCodeException(
         int responseCode,
         @Nullable String responseMessage,

library/core/src/test/java/com/google/android/exoplayer2/upstream/DefaultLoadErrorHandlingPolicyTest.java

@@ -34,7 +34,8 @@ public final class DefaultLoadErrorHandlingPolicyTest {
   @Test
   public void getBlacklistDurationMsFor_blacklist404() {
     InvalidResponseCodeException exception =
-        new InvalidResponseCodeException(404, "Not Found", Collections.emptyMap(), new DataSpec(Uri.EMPTY));
+        new InvalidResponseCodeException(
+            404, "Not Found", Collections.emptyMap(), new DataSpec(Uri.EMPTY));
     assertThat(getDefaultPolicyBlacklistOutputFor(exception))
         .isEqualTo(DefaultLoadErrorHandlingPolicy.DEFAULT_TRACK_BLACKLIST_MS);
   }
@@ -42,7 +43,8 @@ public final class DefaultLoadErrorHandlingPolicyTest {
   @Test
   public void getBlacklistDurationMsFor_blacklist410() {
     InvalidResponseCodeException exception =
-        new InvalidResponseCodeException(410, "Gone", Collections.emptyMap(), new DataSpec(Uri.EMPTY));
+        new InvalidResponseCodeException(
+            410, "Gone", Collections.emptyMap(), new DataSpec(Uri.EMPTY));
     assertThat(getDefaultPolicyBlacklistOutputFor(exception))
         .isEqualTo(DefaultLoadErrorHandlingPolicy.DEFAULT_TRACK_BLACKLIST_MS);
   }

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifest.java

@@ -16,6 +16,7 @@
 package com.google.android.exoplayer2.source.dash.manifest;
 
 import android.net.Uri;
+import android.support.annotation.Nullable;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.offline.FilterableManifest;
 import com.google.android.exoplayer2.offline.StreamKey;
@@ -86,17 +87,56 @@ public class DashManifest implements FilterableManifest<DashManifest> {
    */
   public final Uri location;
 
-  /**
-   * The ProgramInformation of this manifest.
-   */
-  public final ProgramInformation programInformation;
+  /** The {@link ProgramInformation}, or null if not present. */
+  @Nullable public final ProgramInformation programInformation;
 
   private final List<Period> periods;
 
-  public DashManifest(long availabilityStartTimeMs, long durationMs, long minBufferTimeMs,
-      boolean dynamic, long minUpdatePeriodMs, long timeShiftBufferDepthMs,
-      long suggestedPresentationDelayMs, long publishTimeMs, UtcTimingElement utcTiming,
-      Uri location, ProgramInformation programInformation, List<Period> periods) {
+  /**
+   * @deprecated Use {@link #DashManifest(long, long, long, boolean, long, long, long, long,
+   *     ProgramInformation, UtcTimingElement, Uri, List)}.
+   */
+  @Deprecated
+  public DashManifest(
+      long availabilityStartTimeMs,
+      long durationMs,
+      long minBufferTimeMs,
+      boolean dynamic,
+      long minUpdatePeriodMs,
+      long timeShiftBufferDepthMs,
+      long suggestedPresentationDelayMs,
+      long publishTimeMs,
+      UtcTimingElement utcTiming,
+      Uri location,
+      List<Period> periods) {
+    this(
+        availabilityStartTimeMs,
+        durationMs,
+        minBufferTimeMs,
+        dynamic,
+        minUpdatePeriodMs,
+        timeShiftBufferDepthMs,
+        suggestedPresentationDelayMs,
+        publishTimeMs,
+        /* programInformation= */ null,
+        utcTiming,
+        location,
+        periods);
+  }
+
+  public DashManifest(
+      long availabilityStartTimeMs,
+      long durationMs,
+      long minBufferTimeMs,
+      boolean dynamic,
+      long minUpdatePeriodMs,
+      long timeShiftBufferDepthMs,
+      long suggestedPresentationDelayMs,
+      long publishTimeMs,
+      @Nullable ProgramInformation programInformation,
+      UtcTimingElement utcTiming,
+      Uri location,
+      List<Period> periods) {
     this.availabilityStartTimeMs = availabilityStartTimeMs;
     this.durationMs = durationMs;
     this.minBufferTimeMs = minBufferTimeMs;
@@ -105,9 +145,9 @@ public class DashManifest implements FilterableManifest<DashManifest> {
     this.timeShiftBufferDepthMs = timeShiftBufferDepthMs;
     this.suggestedPresentationDelayMs = suggestedPresentationDelayMs;
     this.publishTimeMs = publishTimeMs;
+    this.programInformation = programInformation;
     this.utcTiming = utcTiming;
     this.location = location;
-    this.programInformation = programInformation;
     this.periods = periods == null ? Collections.emptyList() : periods;
   }
 
@@ -154,9 +194,19 @@ public class DashManifest implements FilterableManifest<DashManifest> {
       }
     }
     long newDuration = durationMs != C.TIME_UNSET ? durationMs - shiftMs : C.TIME_UNSET;
-    return new DashManifest(availabilityStartTimeMs, newDuration, minBufferTimeMs, dynamic,
-        minUpdatePeriodMs, timeShiftBufferDepthMs, suggestedPresentationDelayMs, publishTimeMs,
-        utcTiming, location, programInformation, copyPeriods);
+    return new DashManifest(
+        availabilityStartTimeMs,
+        newDuration,
+        minBufferTimeMs,
+        dynamic,
+        minUpdatePeriodMs,
+        timeShiftBufferDepthMs,
+        suggestedPresentationDelayMs,
+        publishTimeMs,
+        programInformation,
+        utcTiming,
+        location,
+        copyPeriods);
   }
 
   private static ArrayList<AdaptationSet> copyAdaptationSets(

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParser.java

@@ -120,9 +120,9 @@ public class DashManifestParser extends DefaultHandler
     long suggestedPresentationDelayMs = dynamic
         ? parseDuration(xpp, "suggestedPresentationDelay", C.TIME_UNSET) : C.TIME_UNSET;
     long publishTimeMs = parseDateTime(xpp, "publishTime", C.TIME_UNSET);
+    ProgramInformation programInformation = null;
     UtcTimingElement utcTiming = null;
     Uri location = null;
-    ProgramInformation programInformation = null;
 
     List<Period> periods = new ArrayList<>();
     long nextPeriodStartMs = dynamic ? C.TIME_UNSET : 0;
@@ -135,12 +135,12 @@ public class DashManifestParser extends DefaultHandler
           baseUrl = parseBaseUrl(xpp, baseUrl);
           seenFirstBaseUrl = true;
         }
+      } else if (XmlPullParserUtil.isStartTag(xpp, "ProgramInformation")) {
+        programInformation = parseProgramInformation(xpp);
       } else if (XmlPullParserUtil.isStartTag(xpp, "UTCTiming")) {
         utcTiming = parseUtcTiming(xpp);
       } else if (XmlPullParserUtil.isStartTag(xpp, "Location")) {
         location = Uri.parse(xpp.nextText());
-      } else if (XmlPullParserUtil.isStartTag(xpp, "ProgramInformation")) {
-        programInformation = parseProgramInformation(xpp);
       } else if (XmlPullParserUtil.isStartTag(xpp, "Period") && !seenEarlyAccessPeriod) {
         Pair<Period, Long> periodWithDurationMs = parsePeriod(xpp, baseUrl, nextPeriodStartMs);
         Period period = periodWithDurationMs.first;
@@ -176,18 +176,47 @@ public class DashManifestParser extends DefaultHandler
       throw new ParserException("No periods found.");
     }
 
-    return buildMediaPresentationDescription(availabilityStartTime, durationMs, minBufferTimeMs,
-        dynamic, minUpdateTimeMs, timeShiftBufferDepthMs, suggestedPresentationDelayMs,
-        publishTimeMs, utcTiming, location, programInformation, periods);
+    return buildMediaPresentationDescription(
+        availabilityStartTime,
+        durationMs,
+        minBufferTimeMs,
+        dynamic,
+        minUpdateTimeMs,
+        timeShiftBufferDepthMs,
+        suggestedPresentationDelayMs,
+        publishTimeMs,
+        programInformation,
+        utcTiming,
+        location,
+        periods);
   }
 
-  protected DashManifest buildMediaPresentationDescription(long availabilityStartTime,
-      long durationMs, long minBufferTimeMs, boolean dynamic, long minUpdateTimeMs,
-      long timeShiftBufferDepthMs, long suggestedPresentationDelayMs, long publishTimeMs,
-      UtcTimingElement utcTiming, Uri location, ProgramInformation programInformation, List<Period> periods) {
-    return new DashManifest(availabilityStartTime, durationMs, minBufferTimeMs,
-        dynamic, minUpdateTimeMs, timeShiftBufferDepthMs, suggestedPresentationDelayMs,
-        publishTimeMs, utcTiming, location, programInformation, periods);
+  protected DashManifest buildMediaPresentationDescription(
+      long availabilityStartTime,
+      long durationMs,
+      long minBufferTimeMs,
+      boolean dynamic,
+      long minUpdateTimeMs,
+      long timeShiftBufferDepthMs,
+      long suggestedPresentationDelayMs,
+      long publishTimeMs,
+      ProgramInformation programInformation,
+      UtcTimingElement utcTiming,
+      Uri location,
+      List<Period> periods) {
+    return new DashManifest(
+        availabilityStartTime,
+        durationMs,
+        minBufferTimeMs,
+        dynamic,
+        minUpdateTimeMs,
+        timeShiftBufferDepthMs,
+        suggestedPresentationDelayMs,
+        publishTimeMs,
+        programInformation,
+        utcTiming,
+        location,
+        periods);
   }
 
   protected UtcTimingElement parseUtcTiming(XmlPullParser xpp) {
@@ -1001,7 +1030,8 @@ public class DashManifestParser extends DefaultHandler
     return new RangedUri(urlText, rangeStart, rangeLength);
   }
 
-  protected ProgramInformation parseProgramInformation(XmlPullParser xpp) throws IOException, XmlPullParserException {
+  protected ProgramInformation parseProgramInformation(XmlPullParser xpp)
+      throws IOException, XmlPullParserException {
     String title = null;
     String source = null;
     String copyright = null;

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/ProgramInformation.java

@@ -17,36 +17,25 @@ package com.google.android.exoplayer2.source.dash.manifest;
 
 import com.google.android.exoplayer2.util.Util;
 
-/**
- * A parsed ProgramInformation element.
- */
+/** A parsed program information element. */
 public class ProgramInformation {
-  /**
-   * The title for the media presentation.
-   */
+  /** The title for the media presentation. */
   public final String title;
 
-  /**
-   * Information about the original source of the media presentation.
-   */
+  /** Information about the original source of the media presentation. */
   public final String source;
 
-  /**
-   * A copyright statement for the media presentation.
-   */
+  /** A copyright statement for the media presentation. */
   public final String copyright;
 
-  /**
-   * A URL that provides more information about the media presentation.
-   */
+  /** A URL that provides more information about the media presentation. */
   public final String moreInformationURL;
 
-  /**
-   * Declares the language code(s) for this ProgramInformation.
-   */
+  /** Declares the language code(s) for this ProgramInformation. */
   public final String lang;
 
-  public ProgramInformation(String title, String source, String copyright, String moreInformationURL, String lang) {
+  public ProgramInformation(
+      String title, String source, String copyright, String moreInformationURL, String lang) {
     this.title = title;
     this.source = source;
     this.copyright = copyright;
@@ -56,15 +45,18 @@ public class ProgramInformation {
 
   @Override
   public boolean equals(Object obj) {
-    if (!(obj instanceof ProgramInformation)) {
+    if (this == obj) {
+      return true;
+    }
+    if (obj == null || getClass() != obj.getClass()) {
       return false;
     }
     ProgramInformation other = (ProgramInformation) obj;
     return Util.areEqual(this.title, other.title)
-            && Util.areEqual(this.source, other.source)
-            && Util.areEqual(this.copyright, other.copyright)
-            && Util.areEqual(this.moreInformationURL, other.moreInformationURL)
-            && Util.areEqual(this.lang, other.lang);
+        && Util.areEqual(this.source, other.source)
+        && Util.areEqual(this.copyright, other.copyright)
+        && Util.areEqual(this.moreInformationURL, other.moreInformationURL)
+        && Util.areEqual(this.lang, other.lang);
   }
 
   @Override

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParserTest.java

@@ -25,7 +25,6 @@ import com.google.android.exoplayer2.testutil.TestUtil;
 import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.nio.charset.Charset;
-import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import org.junit.Test;
@@ -156,11 +155,14 @@ public class DashManifestParserTest {
   @Test
   public void testParseMediaPresentationDescriptionCanParseProgramInformation() throws IOException {
     DashManifestParser parser = new DashManifestParser();
-    DashManifest mpd = parser.parse(Uri.parse("Https://example.com/test.mpd"),
+    DashManifest mpd =
+        parser.parse(
+            Uri.parse("Https://example.com/test.mpd"),
             TestUtil.getInputStream(RuntimeEnvironment.application, SAMPLE_MPD_1));
-    ProgramInformation programInformation = new ProgramInformation("MediaTitle", "MediaSource",
-            "MediaCopyright", "www.example.com", "enUs");
-    assertThat(programInformation).isEqualTo(mpd.programInformation);
+    ProgramInformation expectedProgramInformation =
+        new ProgramInformation(
+            "MediaTitle", "MediaSource", "MediaCopyright", "www.example.com", "enUs");
+    assertThat(mpd.programInformation).isEqualTo(expectedProgramInformation);
   }
 
   @Test

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestTest.java

@@ -219,7 +219,18 @@ public class DashManifestTest {
 
   private static DashManifest newDashManifest(int duration, Period... periods) {
     return new DashManifest(
-        0, duration, 1, false, 2, 3, 4, 12345, DUMMY_UTC_TIMING, Uri.EMPTY, null, Arrays.asList(periods));
+        /* availabilityStartTimeMs= */ 0,
+        duration,
+        /* minBufferTimeMs= */ 1,
+        /* dynamic= */ false,
+        /* minUpdatePeriodMs= */ 2,
+        /* timeShiftBufferDepthMs= */ 3,
+        /* suggestedPresentationDelayMs= */ 4,
+        /* publishTimeMs= */ 12345,
+        /* programInformation= */ null,
+        DUMMY_UTC_TIMING,
+        Uri.EMPTY,
+        Arrays.asList(periods));
   }
 
   private static Period newPeriod(String id, int startMs, AdaptationSet... adaptationSets) {

library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsPlaylistParser.java

@@ -341,7 +341,7 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
       String name = parseStringAttr(line, REGEX_NAME, variableDefinitions);
       String language = parseOptionalStringAttr(line, REGEX_LANGUAGE, variableDefinitions);
       String groupId = parseOptionalStringAttr(line, REGEX_GROUP_ID, variableDefinitions);
-      String id = String.format("%s:%s", groupId, name);
+      String id = groupId + ":" + name;
       Format format;
       switch (parseStringAttr(line, REGEX_TYPE, variableDefinitions)) {
         case TYPE_AUDIO: