77 lines
2.8 KiB
Java
77 lines
2.8 KiB
Java
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/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.hardware.devicestate;
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import static android.hardware.devicestate.DeviceStateManager.INVALID_DEVICE_STATE_IDENTIFIER;
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import android.annotation.NonNull;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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/**
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* Utilities for {@link DeviceStateManager}.
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* @hide
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*/
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public class DeviceStateUtil {
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private DeviceStateUtil() { }
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/**
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* Returns the state identifier of the {@link DeviceState} that matches the
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* {@code currentState}s physical properties. This will return the identifier of the
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* {@link DeviceState} that matches the devices physical configuration.
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*
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* Returns {@link INVALID_DEVICE_STATE_IDENTIFIER} if there is no {@link DeviceState} in the
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* provided list of {@code supportedStates} that matches.
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* @hide
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*/
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public static int calculateBaseStateIdentifier(@NonNull DeviceState currentState,
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@NonNull List<DeviceState> supportedStates) {
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DeviceState.Configuration stateConfiguration = currentState.getConfiguration();
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for (int i = 0; i < supportedStates.size(); i++) {
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DeviceState stateToCompare = supportedStates.get(i);
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if (stateToCompare.getConfiguration().getPhysicalProperties().isEmpty()) {
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continue;
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}
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if (isDeviceStateMatchingPhysicalProperties(stateConfiguration.getPhysicalProperties(),
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supportedStates.get(i))) {
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return supportedStates.get(i).getIdentifier();
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}
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}
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return INVALID_DEVICE_STATE_IDENTIFIER;
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}
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/**
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* Returns if the physical properties provided, matches the same physical properties on the
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* provided {@link DeviceState}.
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*/
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private static boolean isDeviceStateMatchingPhysicalProperties(
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Set<@DeviceState.PhysicalDeviceStateProperties Integer> physicalProperties,
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DeviceState state) {
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Iterator<@DeviceState.PhysicalDeviceStateProperties Integer> iterator =
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physicalProperties.iterator();
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while (iterator.hasNext()) {
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if (!state.hasProperty(iterator.next())) {
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return false;
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}
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}
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return true;
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}
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}
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