| /* |
| * 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 com.android.server.twilight; |
| |
| import android.text.format.DateFormat; |
| |
| import java.util.Calendar; |
| |
| /** |
| * The twilight state, consisting of the sunrise and sunset times (in millis) for the current |
| * period. |
| * <p/> |
| * Note: This object is immutable. |
| */ |
| public final class TwilightState { |
| |
| private final long mSunriseTimeMillis; |
| private final long mSunsetTimeMillis; |
| |
| public TwilightState(long sunriseTimeMillis, long sunsetTimeMillis) { |
| mSunriseTimeMillis = sunriseTimeMillis; |
| mSunsetTimeMillis = sunsetTimeMillis; |
| } |
| |
| /** |
| * Returns the time (in UTC milliseconds from epoch) of the upcoming or previous sunrise if |
| * it's night or day respectively. |
| */ |
| public long sunriseTimeMillis() { |
| return mSunriseTimeMillis; |
| } |
| |
| /** |
| * Returns a new {@link Calendar} instance initialized to {@link #sunriseTimeMillis()}. |
| */ |
| public Calendar sunrise() { |
| final Calendar sunrise = Calendar.getInstance(); |
| sunrise.setTimeInMillis(mSunriseTimeMillis); |
| return sunrise; |
| } |
| |
| /** |
| * Returns the time (in UTC milliseconds from epoch) of the upcoming or previous sunset if |
| * it's day or night respectively. |
| */ |
| public long sunsetTimeMillis() { |
| return mSunsetTimeMillis; |
| } |
| |
| /** |
| * Returns a new {@link Calendar} instance initialized to {@link #sunsetTimeMillis()}. |
| */ |
| public Calendar sunset() { |
| final Calendar sunset = Calendar.getInstance(); |
| sunset.setTimeInMillis(mSunsetTimeMillis); |
| return sunset; |
| } |
| |
| /** |
| * Returns {@code true} if it is currently night time. |
| */ |
| public boolean isNight() { |
| final long now = System.currentTimeMillis(); |
| return now >= mSunsetTimeMillis && now < mSunriseTimeMillis; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return o instanceof TwilightState && equals((TwilightState) o); |
| } |
| |
| public boolean equals(TwilightState other) { |
| return other != null |
| && mSunriseTimeMillis == other.mSunriseTimeMillis |
| && mSunsetTimeMillis == other.mSunsetTimeMillis; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Long.hashCode(mSunriseTimeMillis) ^ Long.hashCode(mSunsetTimeMillis); |
| } |
| |
| @Override |
| public String toString() { |
| return "TwilightState {" |
| + " sunrise=" + DateFormat.format("MM-dd HH:mm", mSunriseTimeMillis) |
| + " sunset="+ DateFormat.format("MM-dd HH:mm", mSunsetTimeMillis) |
| + " }"; |
| } |
| } |