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/*
* Copyright (C) 2017 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 android.companion;
import android.annotation.IntDef;
import android.annotation.Nullable;
import android.os.Parcelable;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/**
* A filter for companion devices of type {@code D}
*
* @param <D> Type of devices, filtered by this filter,
* e.g. {@link android.bluetooth.BluetoothDevice}, {@link android.net.wifi.ScanResult}
*/
public interface DeviceFilter<D extends Parcelable> extends Parcelable {
/** @hide */
int MEDIUM_TYPE_BLUETOOTH = 0;
/** @hide */
int MEDIUM_TYPE_BLUETOOTH_LE = 1;
/** @hide */
int MEDIUM_TYPE_WIFI = 2;
/**
* @return whether the given device matches this filter
*
* @hide
*/
boolean matches(D device);
/** @hide */
String getDeviceDisplayName(D device);
/** @hide */
@MediumType int getMediumType();
/**
* A nullsafe {@link #matches(Parcelable)}, returning true if the filter is null
*
* @hide
*/
static <D extends Parcelable> boolean matches(@Nullable DeviceFilter<D> filter, D device) {
return filter == null || filter.matches(device);
}
/** @hide */
@IntDef({MEDIUM_TYPE_BLUETOOTH, MEDIUM_TYPE_BLUETOOTH_LE, MEDIUM_TYPE_WIFI})
@Retention(RetentionPolicy.SOURCE)
@interface MediumType {}
}
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