ConcurrentCamera.java

/*
 * Copyright 2023 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.camera.core.concurrent;

import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.annotation.RestrictTo;
import androidx.camera.core.Camera;

import java.util.List;

/**
 * Concurrent camera instance.
 */
@RequiresApi(21)
@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
public class ConcurrentCamera {

    @NonNull
    private List<Camera> mCameras;

    ConcurrentCamera(@NonNull List<Camera> cameras) {
        mCameras = cameras;
    }

    /**
     * Gets the list of cameras.
     */
    @NonNull
    public List<Camera> getCameras() {
        return mCameras;
    }

    /**
     * Builder for concurrent camera instance.
     */
    public static class Builder {

        @NonNull
        private List<Camera> mCameras;

        public Builder() {}

        /**
         * Sets the list of cameras.
         *
         * @param cameras cameras
         * @return {@link Builder}
         */
        @NonNull
        public Builder setCameras(@NonNull List<Camera> cameras) {
            mCameras = cameras;
            return this;
        }

        /**
         * Builds the {@link ConcurrentCamera}.
         * @return {@link ConcurrentCamera}.
         */
        @NonNull
        public ConcurrentCamera builder() {
            return new ConcurrentCamera(mCameras);
        }
    }
}