| /* |
| * Copyright (C) 2012 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.display; |
| |
| import android.annotation.Nullable; |
| import android.graphics.Point; |
| import android.hardware.display.BrightnessConfiguration; |
| import android.hardware.display.WifiDisplay; |
| import android.util.AtomicFile; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseLongArray; |
| import android.util.TimeUtils; |
| import android.util.Xml; |
| import android.view.Display; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.XmlUtils; |
| |
| import libcore.io.IoUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.PrintWriter; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| /** |
| * Manages persistent state recorded by the display manager service as an XML file. |
| * Caller must acquire lock on the data store before accessing it. |
| * |
| * File format: |
| * <code> |
| * <display-manager-state> |
| * <remembered-wifi-displays> |
| * <wifi-display deviceAddress="00:00:00:00:00:00" deviceName="XXXX" deviceAlias="YYYY" /> |
| * <remembered-wifi-displays> |
| * <display-states> |
| * <display unique-id="XXXXXXX"> |
| * <color-mode>0</color-mode> |
| * </display> |
| * </display-states> |
| * <stable-device-values> |
| * <stable-display-height>1920</stable-display-height> |
| * <stable-display-width>1080</stable-display-width> |
| * </stable-device-values> |
| * <brightness-configurations> |
| * <brightness-configuration user-serial="0" package-name="com.example" timestamp="1234"> |
| * <brightness-curve description="some text"> |
| * <brightness-point lux="0" nits="13.25"/> |
| * <brightness-point lux="20" nits="35.94"/> |
| * </brightness-curve> |
| * </brightness-configuration> |
| * </brightness-configurations> |
| * </display-manager-state> |
| * </code> |
| * |
| * TODO: refactor this to extract common code shared with the input manager's data store |
| */ |
| final class PersistentDataStore { |
| static final String TAG = "DisplayManager"; |
| |
| private static final String TAG_DISPLAY_MANAGER_STATE = "display-manager-state"; |
| |
| private static final String TAG_REMEMBERED_WIFI_DISPLAYS = "remembered-wifi-displays"; |
| private static final String TAG_WIFI_DISPLAY = "wifi-display"; |
| private static final String ATTR_DEVICE_ADDRESS = "deviceAddress"; |
| private static final String ATTR_DEVICE_NAME = "deviceName"; |
| private static final String ATTR_DEVICE_ALIAS = "deviceAlias"; |
| |
| private static final String TAG_DISPLAY_STATES = "display-states"; |
| private static final String TAG_DISPLAY = "display"; |
| private static final String TAG_COLOR_MODE = "color-mode"; |
| private static final String ATTR_UNIQUE_ID = "unique-id"; |
| |
| private static final String TAG_STABLE_DEVICE_VALUES = "stable-device-values"; |
| private static final String TAG_STABLE_DISPLAY_HEIGHT = "stable-display-height"; |
| private static final String TAG_STABLE_DISPLAY_WIDTH = "stable-display-width"; |
| |
| private static final String TAG_BRIGHTNESS_CONFIGURATIONS = "brightness-configurations"; |
| private static final String TAG_BRIGHTNESS_CONFIGURATION = "brightness-configuration"; |
| private static final String ATTR_USER_SERIAL = "user-serial"; |
| private static final String ATTR_PACKAGE_NAME = "package-name"; |
| private static final String ATTR_TIME_STAMP = "timestamp"; |
| |
| // Remembered Wifi display devices. |
| private ArrayList<WifiDisplay> mRememberedWifiDisplays = new ArrayList<WifiDisplay>(); |
| |
| // Display state by unique id. |
| private final HashMap<String, DisplayState> mDisplayStates = |
| new HashMap<String, DisplayState>(); |
| |
| // Display values which should be stable across the device's lifetime. |
| private final StableDeviceValues mStableDeviceValues = new StableDeviceValues(); |
| |
| // Brightness configuration by user |
| private BrightnessConfigurations mBrightnessConfigurations = new BrightnessConfigurations(); |
| |
| // True if the data has been loaded. |
| private boolean mLoaded; |
| |
| // True if there are changes to be saved. |
| private boolean mDirty; |
| |
| // The interface for methods which should be replaced by the test harness. |
| private Injector mInjector; |
| |
| public PersistentDataStore() { |
| this(new Injector()); |
| } |
| |
| @VisibleForTesting |
| PersistentDataStore(Injector injector) { |
| mInjector = injector; |
| } |
| |
| public void saveIfNeeded() { |
| if (mDirty) { |
| save(); |
| mDirty = false; |
| } |
| } |
| |
| public WifiDisplay getRememberedWifiDisplay(String deviceAddress) { |
| loadIfNeeded(); |
| int index = findRememberedWifiDisplay(deviceAddress); |
| if (index >= 0) { |
| return mRememberedWifiDisplays.get(index); |
| } |
| return null; |
| } |
| |
| public WifiDisplay[] getRememberedWifiDisplays() { |
| loadIfNeeded(); |
| return mRememberedWifiDisplays.toArray(new WifiDisplay[mRememberedWifiDisplays.size()]); |
| } |
| |
| public WifiDisplay applyWifiDisplayAlias(WifiDisplay display) { |
| if (display != null) { |
| loadIfNeeded(); |
| |
| String alias = null; |
| int index = findRememberedWifiDisplay(display.getDeviceAddress()); |
| if (index >= 0) { |
| alias = mRememberedWifiDisplays.get(index).getDeviceAlias(); |
| } |
| if (!Objects.equals(display.getDeviceAlias(), alias)) { |
| return new WifiDisplay(display.getDeviceAddress(), display.getDeviceName(), |
| alias, display.isAvailable(), display.canConnect(), display.isRemembered()); |
| } |
| } |
| return display; |
| } |
| |
| public WifiDisplay[] applyWifiDisplayAliases(WifiDisplay[] displays) { |
| WifiDisplay[] results = displays; |
| if (results != null) { |
| int count = displays.length; |
| for (int i = 0; i < count; i++) { |
| WifiDisplay result = applyWifiDisplayAlias(displays[i]); |
| if (result != displays[i]) { |
| if (results == displays) { |
| results = new WifiDisplay[count]; |
| System.arraycopy(displays, 0, results, 0, count); |
| } |
| results[i] = result; |
| } |
| } |
| } |
| return results; |
| } |
| |
| public boolean rememberWifiDisplay(WifiDisplay display) { |
| loadIfNeeded(); |
| |
| int index = findRememberedWifiDisplay(display.getDeviceAddress()); |
| if (index >= 0) { |
| WifiDisplay other = mRememberedWifiDisplays.get(index); |
| if (other.equals(display)) { |
| return false; // already remembered without change |
| } |
| mRememberedWifiDisplays.set(index, display); |
| } else { |
| mRememberedWifiDisplays.add(display); |
| } |
| setDirty(); |
| return true; |
| } |
| |
| public boolean forgetWifiDisplay(String deviceAddress) { |
| loadIfNeeded(); |
| int index = findRememberedWifiDisplay(deviceAddress); |
| if (index >= 0) { |
| mRememberedWifiDisplays.remove(index); |
| setDirty(); |
| return true; |
| } |
| return false; |
| } |
| |
| private int findRememberedWifiDisplay(String deviceAddress) { |
| int count = mRememberedWifiDisplays.size(); |
| for (int i = 0; i < count; i++) { |
| if (mRememberedWifiDisplays.get(i).getDeviceAddress().equals(deviceAddress)) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| public int getColorMode(DisplayDevice device) { |
| if (!device.hasStableUniqueId()) { |
| return Display.COLOR_MODE_INVALID; |
| } |
| DisplayState state = getDisplayState(device.getUniqueId(), false); |
| if (state == null) { |
| return Display.COLOR_MODE_INVALID; |
| } |
| return state.getColorMode(); |
| } |
| |
| public boolean setColorMode(DisplayDevice device, int colorMode) { |
| if (!device.hasStableUniqueId()) { |
| return false; |
| } |
| DisplayState state = getDisplayState(device.getUniqueId(), true); |
| if (state.setColorMode(colorMode)) { |
| setDirty(); |
| return true; |
| } |
| return false; |
| } |
| |
| public Point getStableDisplaySize() { |
| loadIfNeeded(); |
| return mStableDeviceValues.getDisplaySize(); |
| } |
| |
| public void setStableDisplaySize(Point size) { |
| loadIfNeeded(); |
| if (mStableDeviceValues.setDisplaySize(size)) { |
| setDirty(); |
| } |
| } |
| |
| public void setBrightnessConfigurationForUser(BrightnessConfiguration c, int userSerial, |
| @Nullable String packageName) { |
| loadIfNeeded(); |
| if (mBrightnessConfigurations.setBrightnessConfigurationForUser(c, userSerial, |
| packageName)) { |
| setDirty(); |
| } |
| } |
| |
| public BrightnessConfiguration getBrightnessConfiguration(int userSerial) { |
| loadIfNeeded(); |
| return mBrightnessConfigurations.getBrightnessConfiguration(userSerial); |
| } |
| |
| private DisplayState getDisplayState(String uniqueId, boolean createIfAbsent) { |
| loadIfNeeded(); |
| DisplayState state = mDisplayStates.get(uniqueId); |
| if (state == null && createIfAbsent) { |
| state = new DisplayState(); |
| mDisplayStates.put(uniqueId, state); |
| setDirty(); |
| } |
| return state; |
| } |
| |
| public void loadIfNeeded() { |
| if (!mLoaded) { |
| load(); |
| mLoaded = true; |
| } |
| } |
| |
| private void setDirty() { |
| mDirty = true; |
| } |
| |
| private void clearState() { |
| mRememberedWifiDisplays.clear(); |
| } |
| |
| private void load() { |
| clearState(); |
| |
| final InputStream is; |
| try { |
| is = mInjector.openRead(); |
| } catch (FileNotFoundException ex) { |
| return; |
| } |
| |
| XmlPullParser parser; |
| try { |
| parser = Xml.newPullParser(); |
| parser.setInput(new BufferedInputStream(is), StandardCharsets.UTF_8.name()); |
| loadFromXml(parser); |
| } catch (IOException ex) { |
| Slog.w(TAG, "Failed to load display manager persistent store data.", ex); |
| clearState(); |
| } catch (XmlPullParserException ex) { |
| Slog.w(TAG, "Failed to load display manager persistent store data.", ex); |
| clearState(); |
| } finally { |
| IoUtils.closeQuietly(is); |
| } |
| } |
| |
| private void save() { |
| final OutputStream os; |
| try { |
| os = mInjector.startWrite(); |
| boolean success = false; |
| try { |
| XmlSerializer serializer = new FastXmlSerializer(); |
| serializer.setOutput(new BufferedOutputStream(os), StandardCharsets.UTF_8.name()); |
| saveToXml(serializer); |
| serializer.flush(); |
| success = true; |
| } finally { |
| mInjector.finishWrite(os, success); |
| } |
| } catch (IOException ex) { |
| Slog.w(TAG, "Failed to save display manager persistent store data.", ex); |
| } |
| } |
| |
| private void loadFromXml(XmlPullParser parser) |
| throws IOException, XmlPullParserException { |
| XmlUtils.beginDocument(parser, TAG_DISPLAY_MANAGER_STATE); |
| final int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(TAG_REMEMBERED_WIFI_DISPLAYS)) { |
| loadRememberedWifiDisplaysFromXml(parser); |
| } |
| if (parser.getName().equals(TAG_DISPLAY_STATES)) { |
| loadDisplaysFromXml(parser); |
| } |
| if (parser.getName().equals(TAG_STABLE_DEVICE_VALUES)) { |
| mStableDeviceValues.loadFromXml(parser); |
| } |
| if (parser.getName().equals(TAG_BRIGHTNESS_CONFIGURATIONS)) { |
| mBrightnessConfigurations.loadFromXml(parser); |
| } |
| } |
| } |
| |
| private void loadRememberedWifiDisplaysFromXml(XmlPullParser parser) |
| throws IOException, XmlPullParserException { |
| final int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(TAG_WIFI_DISPLAY)) { |
| String deviceAddress = parser.getAttributeValue(null, ATTR_DEVICE_ADDRESS); |
| String deviceName = parser.getAttributeValue(null, ATTR_DEVICE_NAME); |
| String deviceAlias = parser.getAttributeValue(null, ATTR_DEVICE_ALIAS); |
| if (deviceAddress == null || deviceName == null) { |
| throw new XmlPullParserException( |
| "Missing deviceAddress or deviceName attribute on wifi-display."); |
| } |
| if (findRememberedWifiDisplay(deviceAddress) >= 0) { |
| throw new XmlPullParserException( |
| "Found duplicate wifi display device address."); |
| } |
| |
| mRememberedWifiDisplays.add( |
| new WifiDisplay(deviceAddress, deviceName, deviceAlias, |
| false, false, false)); |
| } |
| } |
| } |
| |
| private void loadDisplaysFromXml(XmlPullParser parser) |
| throws IOException, XmlPullParserException { |
| final int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(TAG_DISPLAY)) { |
| String uniqueId = parser.getAttributeValue(null, ATTR_UNIQUE_ID); |
| if (uniqueId == null) { |
| throw new XmlPullParserException( |
| "Missing unique-id attribute on display."); |
| } |
| if (mDisplayStates.containsKey(uniqueId)) { |
| throw new XmlPullParserException("Found duplicate display."); |
| } |
| |
| DisplayState state = new DisplayState(); |
| state.loadFromXml(parser); |
| mDisplayStates.put(uniqueId, state); |
| } |
| } |
| } |
| |
| private void saveToXml(XmlSerializer serializer) throws IOException { |
| serializer.startDocument(null, true); |
| serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| serializer.startTag(null, TAG_DISPLAY_MANAGER_STATE); |
| serializer.startTag(null, TAG_REMEMBERED_WIFI_DISPLAYS); |
| for (WifiDisplay display : mRememberedWifiDisplays) { |
| serializer.startTag(null, TAG_WIFI_DISPLAY); |
| serializer.attribute(null, ATTR_DEVICE_ADDRESS, display.getDeviceAddress()); |
| serializer.attribute(null, ATTR_DEVICE_NAME, display.getDeviceName()); |
| if (display.getDeviceAlias() != null) { |
| serializer.attribute(null, ATTR_DEVICE_ALIAS, display.getDeviceAlias()); |
| } |
| serializer.endTag(null, TAG_WIFI_DISPLAY); |
| } |
| serializer.endTag(null, TAG_REMEMBERED_WIFI_DISPLAYS); |
| serializer.startTag(null, TAG_DISPLAY_STATES); |
| for (Map.Entry<String, DisplayState> entry : mDisplayStates.entrySet()) { |
| final String uniqueId = entry.getKey(); |
| final DisplayState state = entry.getValue(); |
| serializer.startTag(null, TAG_DISPLAY); |
| serializer.attribute(null, ATTR_UNIQUE_ID, uniqueId); |
| state.saveToXml(serializer); |
| serializer.endTag(null, TAG_DISPLAY); |
| } |
| serializer.endTag(null, TAG_DISPLAY_STATES); |
| serializer.startTag(null, TAG_STABLE_DEVICE_VALUES); |
| mStableDeviceValues.saveToXml(serializer); |
| serializer.endTag(null, TAG_STABLE_DEVICE_VALUES); |
| serializer.startTag(null, TAG_BRIGHTNESS_CONFIGURATIONS); |
| mBrightnessConfigurations.saveToXml(serializer); |
| serializer.endTag(null, TAG_BRIGHTNESS_CONFIGURATIONS); |
| serializer.endTag(null, TAG_DISPLAY_MANAGER_STATE); |
| serializer.endDocument(); |
| } |
| |
| public void dump(PrintWriter pw) { |
| pw.println("PersistentDataStore"); |
| pw.println(" mLoaded=" + mLoaded); |
| pw.println(" mDirty=" + mDirty); |
| pw.println(" RememberedWifiDisplays:"); |
| int i = 0; |
| for (WifiDisplay display : mRememberedWifiDisplays) { |
| pw.println(" " + i++ + ": " + display); |
| } |
| pw.println(" DisplayStates:"); |
| i = 0; |
| for (Map.Entry<String, DisplayState> entry : mDisplayStates.entrySet()) { |
| pw.println(" " + i++ + ": " + entry.getKey()); |
| entry.getValue().dump(pw, " "); |
| } |
| pw.println(" StableDeviceValues:"); |
| mStableDeviceValues.dump(pw, " "); |
| pw.println(" BrightnessConfigurations:"); |
| mBrightnessConfigurations.dump(pw, " "); |
| } |
| |
| private static final class DisplayState { |
| private int mColorMode; |
| |
| public boolean setColorMode(int colorMode) { |
| if (colorMode == mColorMode) { |
| return false; |
| } |
| mColorMode = colorMode; |
| return true; |
| } |
| |
| public int getColorMode() { |
| return mColorMode; |
| } |
| |
| public void loadFromXml(XmlPullParser parser) |
| throws IOException, XmlPullParserException { |
| final int outerDepth = parser.getDepth(); |
| |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(TAG_COLOR_MODE)) { |
| String value = parser.nextText(); |
| mColorMode = Integer.parseInt(value); |
| } |
| } |
| } |
| |
| public void saveToXml(XmlSerializer serializer) throws IOException { |
| serializer.startTag(null, TAG_COLOR_MODE); |
| serializer.text(Integer.toString(mColorMode)); |
| serializer.endTag(null, TAG_COLOR_MODE); |
| } |
| |
| public void dump(final PrintWriter pw, final String prefix) { |
| pw.println(prefix + "ColorMode=" + mColorMode); |
| } |
| } |
| |
| private static final class StableDeviceValues { |
| private int mWidth; |
| private int mHeight; |
| |
| private Point getDisplaySize() { |
| return new Point(mWidth, mHeight); |
| } |
| |
| public boolean setDisplaySize(Point r) { |
| if (mWidth != r.x || mHeight != r.y) { |
| mWidth = r.x; |
| mHeight = r.y; |
| return true; |
| } |
| return false; |
| } |
| |
| public void loadFromXml(XmlPullParser parser) throws IOException, XmlPullParserException { |
| final int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| switch (parser.getName()) { |
| case TAG_STABLE_DISPLAY_WIDTH: |
| mWidth = loadIntValue(parser); |
| break; |
| case TAG_STABLE_DISPLAY_HEIGHT: |
| mHeight = loadIntValue(parser); |
| break; |
| } |
| } |
| } |
| |
| private static int loadIntValue(XmlPullParser parser) |
| throws IOException, XmlPullParserException { |
| try { |
| String value = parser.nextText(); |
| return Integer.parseInt(value); |
| } catch (NumberFormatException nfe) { |
| return 0; |
| } |
| } |
| |
| public void saveToXml(XmlSerializer serializer) throws IOException { |
| if (mWidth > 0 && mHeight > 0) { |
| serializer.startTag(null, TAG_STABLE_DISPLAY_WIDTH); |
| serializer.text(Integer.toString(mWidth)); |
| serializer.endTag(null, TAG_STABLE_DISPLAY_WIDTH); |
| serializer.startTag(null, TAG_STABLE_DISPLAY_HEIGHT); |
| serializer.text(Integer.toString(mHeight)); |
| serializer.endTag(null, TAG_STABLE_DISPLAY_HEIGHT); |
| } |
| } |
| |
| public void dump(final PrintWriter pw, final String prefix) { |
| pw.println(prefix + "StableDisplayWidth=" + mWidth); |
| pw.println(prefix + "StableDisplayHeight=" + mHeight); |
| } |
| } |
| |
| private static final class BrightnessConfigurations { |
| // Maps from a user ID to the users' given brightness configuration |
| private SparseArray<BrightnessConfiguration> mConfigurations; |
| // Timestamp of time the configuration was set. |
| private SparseLongArray mTimeStamps; |
| // Package that set the configuration. |
| private SparseArray<String> mPackageNames; |
| |
| public BrightnessConfigurations() { |
| mConfigurations = new SparseArray<>(); |
| mTimeStamps = new SparseLongArray(); |
| mPackageNames = new SparseArray<>(); |
| } |
| |
| private boolean setBrightnessConfigurationForUser(BrightnessConfiguration c, |
| int userSerial, String packageName) { |
| BrightnessConfiguration currentConfig = mConfigurations.get(userSerial); |
| if (currentConfig != c && (currentConfig == null || !currentConfig.equals(c))) { |
| if (c != null) { |
| if (packageName == null) { |
| mPackageNames.remove(userSerial); |
| } else { |
| mPackageNames.put(userSerial, packageName); |
| } |
| mTimeStamps.put(userSerial, System.currentTimeMillis()); |
| mConfigurations.put(userSerial, c); |
| } else { |
| mPackageNames.remove(userSerial); |
| mTimeStamps.delete(userSerial); |
| mConfigurations.remove(userSerial); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| public BrightnessConfiguration getBrightnessConfiguration(int userSerial) { |
| return mConfigurations.get(userSerial); |
| } |
| |
| public void loadFromXml(XmlPullParser parser) throws IOException, XmlPullParserException { |
| final int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (TAG_BRIGHTNESS_CONFIGURATION.equals(parser.getName())) { |
| int userSerial; |
| try { |
| userSerial = Integer.parseInt( |
| parser.getAttributeValue(null, ATTR_USER_SERIAL)); |
| } catch (NumberFormatException nfe) { |
| userSerial = -1; |
| Slog.e(TAG, "Failed to read in brightness configuration", nfe); |
| } |
| |
| String packageName = parser.getAttributeValue(null, ATTR_PACKAGE_NAME); |
| String timeStampString = parser.getAttributeValue(null, ATTR_TIME_STAMP); |
| long timeStamp = -1; |
| if (timeStampString != null) { |
| try { |
| timeStamp = Long.parseLong(timeStampString); |
| } catch (NumberFormatException nfe) { |
| // Ignore we will just not restore the timestamp. |
| } |
| } |
| |
| try { |
| BrightnessConfiguration config = |
| BrightnessConfiguration.loadFromXml(parser); |
| if (userSerial >= 0 && config != null) { |
| mConfigurations.put(userSerial, config); |
| if (timeStamp != -1) { |
| mTimeStamps.put(userSerial, timeStamp); |
| } |
| if (packageName != null) { |
| mPackageNames.put(userSerial, packageName); |
| } |
| } |
| } catch (IllegalArgumentException iae) { |
| Slog.e(TAG, "Failed to load brightness configuration!", iae); |
| } |
| } |
| } |
| } |
| |
| public void saveToXml(XmlSerializer serializer) throws IOException { |
| for (int i = 0; i < mConfigurations.size(); i++) { |
| final int userSerial = mConfigurations.keyAt(i); |
| final BrightnessConfiguration config = mConfigurations.valueAt(i); |
| |
| serializer.startTag(null, TAG_BRIGHTNESS_CONFIGURATION); |
| serializer.attribute(null, ATTR_USER_SERIAL, Integer.toString(userSerial)); |
| String packageName = mPackageNames.get(userSerial); |
| if (packageName != null) { |
| serializer.attribute(null, ATTR_PACKAGE_NAME, packageName); |
| } |
| long timestamp = mTimeStamps.get(userSerial, -1); |
| if (timestamp != -1) { |
| serializer.attribute(null, ATTR_TIME_STAMP, Long.toString(timestamp)); |
| } |
| config.saveToXml(serializer); |
| serializer.endTag(null, TAG_BRIGHTNESS_CONFIGURATION); |
| } |
| } |
| |
| public void dump(final PrintWriter pw, final String prefix) { |
| for (int i = 0; i < mConfigurations.size(); i++) { |
| final int userSerial = mConfigurations.keyAt(i); |
| long time = mTimeStamps.get(userSerial, -1); |
| String packageName = mPackageNames.get(userSerial); |
| pw.println(prefix + "User " + userSerial + ":"); |
| if (time != -1) { |
| pw.println(prefix + " set at: " + TimeUtils.formatForLogging(time)); |
| } |
| if (packageName != null) { |
| pw.println(prefix + " set by: " + packageName); |
| } |
| pw.println(prefix + " " + mConfigurations.valueAt(i)); |
| } |
| } |
| } |
| |
| @VisibleForTesting |
| static class Injector { |
| private final AtomicFile mAtomicFile; |
| |
| public Injector() { |
| mAtomicFile = new AtomicFile(new File("/data/system/display-manager-state.xml"), |
| "display-state"); |
| } |
| |
| public InputStream openRead() throws FileNotFoundException { |
| return mAtomicFile.openRead(); |
| } |
| |
| public OutputStream startWrite() throws IOException { |
| return mAtomicFile.startWrite(); |
| } |
| |
| public void finishWrite(OutputStream os, boolean success) { |
| if (!(os instanceof FileOutputStream)) { |
| throw new IllegalArgumentException("Unexpected OutputStream as argument: " + os); |
| } |
| FileOutputStream fos = (FileOutputStream) os; |
| if (success) { |
| mAtomicFile.finishWrite(fos); |
| } else { |
| mAtomicFile.failWrite(fos); |
| } |
| } |
| } |
| } |