Migrate transport backend to auto @Encodable codegen.

transport/transport-backend-cct/src/main/java/com/google/android/datatransport/cct/CctTransportBackend.java

@@ -27,7 +27,6 @@
 import com.google.android.datatransport.cct.internal.AndroidClientInfo;
 import com.google.android.datatransport.cct.internal.BatchedLogRequest;
 import com.google.android.datatransport.cct.internal.ClientInfo;
-import com.google.android.datatransport.cct.internal.JsonBatchedLogRequestEncoder;
 import com.google.android.datatransport.cct.internal.LogEvent;
 import com.google.android.datatransport.cct.internal.LogRequest;
 import com.google.android.datatransport.cct.internal.LogResponse;
@@ -88,7 +87,7 @@ final class CctTransportBackend implements TransportBackend {
   private static final String KEY_FINGERPRINT = "fingerprint";
   private static final String KEY_TIMEZONE_OFFSET = "tz-offset";
 
-  private final DataEncoder dataEncoder = JsonBatchedLogRequestEncoder.createJsonEncoder();
+  private final DataEncoder dataEncoder = BatchedLogRequest.createDataEncoder();
 
   private final ConnectivityManager connectivityManager;
   final URL endPoint;
@@ -197,7 +196,7 @@ private BatchedLogRequest getRequestBody(BackendRequest backendRequest) {
 
       // set log source to either its numeric value or its name.
       try {
-        requestBuilder.setSource(Integer.valueOf(entry.getKey()));
+        requestBuilder.setSource(Integer.parseInt(entry.getKey()));
       } catch (NumberFormatException ex) {
         requestBuilder.setSource(entry.getKey());
       }

transport/transport-backend-cct/src/main/java/com/google/android/datatransport/cct/internal/AndroidClientInfo.java

@@ -21,7 +21,8 @@
 @AutoValue
 public abstract class AndroidClientInfo {
   /** This comes from android.os.Build.VERSION.SDK_INT. */
-  public abstract int getSdkVersion();
+  @Nullable
+  public abstract Integer getSdkVersion();
 
   /**
    * Textual description of the client platform. e.g., "Nexus 4". This comes from
@@ -59,14 +60,14 @@ public abstract class AndroidClientInfo {
 
   @NonNull
   public static Builder builder() {
-    return new AutoValue_AndroidClientInfo.Builder().setSdkVersion(Integer.MIN_VALUE);
+    return new AutoValue_AndroidClientInfo.Builder();
   }
 
   @AutoValue.Builder
   public abstract static class Builder {
 
     @NonNull
-    public abstract Builder setSdkVersion(int value);
+    public abstract Builder setSdkVersion(@Nullable Integer value);
 
     @NonNull
     public abstract Builder setModel(@Nullable String value);

transport/transport-backend-cct/src/main/java/com/google/android/datatransport/cct/internal/BatchedLogRequest.java

@@ -16,15 +16,28 @@
 
 import androidx.annotation.NonNull;
 import com.google.auto.value.AutoValue;
+import com.google.firebase.encoders.DataEncoder;
+import com.google.firebase.encoders.annotations.Encodable;
+import com.google.firebase.encoders.json.JsonDataEncoderBuilder;
 import java.util.List;
 
 @AutoValue
+@Encodable
 public abstract class BatchedLogRequest {
   @NonNull
+  @Encodable.Field(name = "logRequest")
   public abstract List<LogRequest> getLogRequests();
 
   @NonNull
   public static BatchedLogRequest create(@NonNull List<LogRequest> logRequests) {
     return new AutoValue_BatchedLogRequest(logRequests);
   }
+
+  @NonNull
+  public static DataEncoder createDataEncoder() {
+    return new JsonDataEncoderBuilder()
+        .configureWith(AutoBatchedLogRequestEncoder.CONFIG)
+        .ignoreNullValues(true)
+        .build();
+  }
 }

transport/transport-backend-cct/src/main/java/com/google/android/datatransport/cct/internal/LogEvent.java

@@ -23,7 +23,8 @@ public abstract class LogEvent {
 
   public abstract long getEventTimeMs();
 
-  public abstract int getEventCode();
+  @Nullable
+  public abstract Integer getEventCode();
 
   public abstract long getEventUptimeMs();
 
@@ -51,7 +52,7 @@ public static Builder jsonBuilder(@NonNull String sourceJsonExtension) {
   }
 
   private static Builder builder() {
-    return new AutoValue_LogEvent.Builder().setEventCode(Integer.MIN_VALUE);
+    return new AutoValue_LogEvent.Builder();
   }
 
   @AutoValue.Builder
@@ -60,7 +61,7 @@ public abstract static class Builder {
     public abstract Builder setEventTimeMs(long value);
 
     @NonNull
-    public abstract Builder setEventCode(int value);
+    public abstract Builder setEventCode(@Nullable Integer value);
 
     @NonNull
     public abstract Builder setEventUptimeMs(long value);

transport/transport-backend-cct/src/main/java/com/google/android/datatransport/cct/internal/LogRequest.java

@@ -17,6 +17,7 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import com.google.auto.value.AutoValue;
+import com.google.firebase.encoders.annotations.Encodable;
 import java.util.List;
 
 @AutoValue
@@ -34,20 +35,22 @@ public abstract class LogRequest {
   @Nullable
   public abstract ClientInfo getClientInfo();
 
-  public abstract int getLogSource();
+  @Nullable
+  public abstract Integer getLogSource();
 
   @Nullable
   public abstract String getLogSourceName();
 
   @Nullable
+  @Encodable.Field(name = "logEvent")
   public abstract List<LogEvent> getLogEvents();
 
   @Nullable
   public abstract QosTier getQosTier();
 
   @NonNull
   public static Builder builder() {
-    return new AutoValue_LogRequest.Builder().setLogSource(Integer.MIN_VALUE);
+    return new AutoValue_LogRequest.Builder();
   }
 
   @AutoValue.Builder
@@ -62,7 +65,7 @@ public abstract static class Builder {
     public abstract Builder setClientInfo(@Nullable ClientInfo value);
 
     @NonNull
-    abstract Builder setLogSource(int value);
+    abstract Builder setLogSource(@Nullable Integer value);
 
     @NonNull
     abstract Builder setLogSourceName(@Nullable String value);