content: /*
   * Copyright (C) 2016 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
   *
   *   http://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.test.espresso.action;
  
  import static androidx.test.espresso.remote.TypeProtoConverters.byteStringToType;
  import static androidx.test.espresso.remote.TypeProtoConverters.typeToAny;
  import static androidx.test.espresso.remote.TypeProtoConverters.typeToByteString;
  
  import androidx.annotation.NonNull;
  import androidx.annotation.Nullable;
  import androidx.annotation.VisibleForTesting;
  import androidx.test.espresso.proto.action.ViewActions.AdapterDataLoaderActionProto;
  import androidx.test.espresso.remote.ConstructorInvocation;
  import androidx.test.espresso.remote.EspressoRemoteMessage;
  import androidx.test.espresso.remote.TypeProtoConverters;
  import org.hamcrest.Matcher;
  
  /**
   * {@link EspressoRemoteMessage.To} and {@link EspressoRemoteMessage.From} implementation of {@link
   * AdapterDataLoaderAction}.
   */
  public final class AdapterDataLoaderActionRemoteMsg
      implements EspressoRemoteMessage.To<AdapterDataLoaderActionProto> {
    @VisibleForTesting static final int NO_POSITION_SET = -1;
  
    @Nullable private final Integer atPosition;
    private final Matcher<? extends Object> dataToLoadMatcher;
    private final Class<? extends AdapterViewProtocol> adapterViewProtocolClass;
  
    public AdapterDataLoaderActionRemoteMsg(
        @NonNull AdapterDataLoaderAction adapterDataLoaderAction) {
      this.atPosition = adapterDataLoaderAction.atPosition;
      this.dataToLoadMatcher = adapterDataLoaderAction.dataToLoadMatcher;
      this.adapterViewProtocolClass = adapterDataLoaderAction.adapterViewProtocol.getClass();
    }
  
    @Override
    public AdapterDataLoaderActionProto toProto() {
      return AdapterDataLoaderActionProto.newBuilder()
          .setAtPosition(atPosition == null ? NO_POSITION_SET : atPosition)
          .setDataToLoadMatcher(typeToAny(dataToLoadMatcher))
          .setAdapterViewProtocolClass(typeToByteString(adapterViewProtocolClass))
          .build();
    }
  
    /**
     * This field is used to create an instance of {@link AdapterDataLoaderAction} from its unwrapped
     * proto message.
     */
    public static final EspressoRemoteMessage.From<
            AdapterDataLoaderAction, AdapterDataLoaderActionProto>
        FROM =
            new EspressoRemoteMessage.From<AdapterDataLoaderAction, AdapterDataLoaderActionProto>() {
              @Override
              public AdapterDataLoaderAction fromProto(
                  AdapterDataLoaderActionProto dataLoaderActionProto) {
                Class<? extends AdapterViewProtocol> adapterViewProtocolClass =
                    byteStringToType(dataLoaderActionProto.getAdapterViewProtocolClass());
                AdapterViewProtocol adapterViewProtocol =
                    adapterViewProtocolClass.cast(
                        new ConstructorInvocation(adapterViewProtocolClass, null)
                            .invokeConstructor());
                Integer atPosition =
                    NO_POSITION_SET == dataLoaderActionProto.getAtPosition()
                        ? null
                        : dataLoaderActionProto.getAtPosition();
                return new AdapterDataLoaderAction(
                    TypeProtoConverters.<Matcher<? extends Object>>anyToType(
                        dataLoaderActionProto.getDataToLoadMatcher()),
                    atPosition,
                    adapterViewProtocol);
              }
            };
  }
  