| /* |
| * Copyright (C) 2019 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.testutils; |
| |
| import android.annotation.NonNull; |
| import android.provider.DeviceConfig; |
| import android.provider.DeviceConfigInterface; |
| import android.util.ArrayMap; |
| import android.util.Pair; |
| |
| import com.android.internal.util.Preconditions; |
| |
| import java.lang.reflect.Constructor; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.TimeUnit; |
| |
| public class FakeDeviceConfigInterface implements DeviceConfigInterface { |
| |
| private static final String COMPOSITE_DELIMITER = "/"; |
| private Map<String, String> mProperties = new HashMap<>(); |
| private ArrayMap<DeviceConfig.OnPropertiesChangedListener, Pair<String, Executor>> mListeners = |
| new ArrayMap<>(); |
| |
| private static String createCompositeName(@NonNull String namespace, @NonNull String name) { |
| Preconditions.checkNotNull(namespace); |
| Preconditions.checkNotNull(name); |
| return namespace + COMPOSITE_DELIMITER + name; |
| } |
| |
| public void clearProperties() { |
| mProperties.clear(); |
| } |
| |
| public void putProperty(String namespace, String key, String value) { |
| mProperties.put(createCompositeName(namespace, key), value); |
| } |
| |
| public void putPropertyAndNotify(String namespace, String key, String value) { |
| putProperty(namespace, key, value); |
| DeviceConfig.Properties properties = makeProperties(namespace, key, value); |
| CountDownLatch latch = new CountDownLatch(mListeners.size()); |
| for (int i = 0; i < mListeners.size(); i++) { |
| if (namespace.equals(mListeners.valueAt(i).first)) { |
| final int j = i; |
| mListeners.valueAt(i).second.execute( |
| () -> { |
| mListeners.keyAt(j).onPropertiesChanged(properties); |
| latch.countDown(); |
| }); |
| } else { |
| latch.countDown(); |
| } |
| } |
| boolean success; |
| try { |
| success = latch.await(10, TimeUnit.SECONDS); |
| } catch (InterruptedException e) { |
| success = false; |
| } |
| if (!success) { |
| throw new RuntimeException("Failed to notify all listeners in time."); |
| } |
| } |
| |
| private DeviceConfig.Properties makeProperties(String namespace, String key, String value) { |
| try { |
| final Constructor<DeviceConfig.Properties> ctor = |
| DeviceConfig.Properties.class.getDeclaredConstructor(String.class, Map.class); |
| ctor.setAccessible(true); |
| final HashMap<String, String> keyValueMap = new HashMap<>(); |
| keyValueMap.put(key, value); |
| return ctor.newInstance(namespace, keyValueMap); |
| } catch (ReflectiveOperationException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| public String getProperty(String namespace, String name) { |
| return mProperties.get(createCompositeName(namespace, name)); |
| } |
| |
| @Override |
| public DeviceConfig.Properties getProperties(String namespace, String... names) { |
| if (!mProperties.keySet().contains(namespace)) { |
| return new DeviceConfig.Properties(namespace, null); |
| } |
| DeviceConfig.Properties.Builder propertiesBuilder = new DeviceConfig.Properties.Builder( |
| namespace); |
| |
| for (String compositeName : mProperties.keySet()) { |
| if (compositeName.split(COMPOSITE_DELIMITER).length != 2) { |
| continue; |
| } |
| |
| String existingPropertyNamespace = compositeName.split(COMPOSITE_DELIMITER)[0]; |
| String existingPropertyName = compositeName.split(COMPOSITE_DELIMITER)[1]; |
| |
| if ((names.length == 0 && existingPropertyNamespace.equals(namespace)) || Arrays.asList( |
| names).contains(compositeName)) { |
| propertiesBuilder.setString(existingPropertyName, mProperties.get(compositeName)); |
| } |
| } |
| |
| return propertiesBuilder.build(); |
| } |
| |
| @Override |
| public boolean setProperty(String namespace, String name, String value, boolean makeDefault) { |
| putPropertyAndNotify(namespace, name, value); |
| return true; |
| } |
| |
| @Override |
| public boolean setProperties(DeviceConfig.Properties properties) |
| throws DeviceConfig.BadConfigException { |
| for (String property : properties.getKeyset()) { |
| String compositeName = createCompositeName(properties.getNamespace(), property); |
| putPropertyAndNotify(properties.getNamespace(), compositeName, |
| properties.getString(property, "")); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean deleteProperty(String namespace, String name) { |
| mProperties.remove(createCompositeName(namespace, name)); |
| return true; |
| } |
| |
| @Override |
| public void resetToDefaults(int resetMode, String namespace) { |
| clearProperties(); |
| } |
| |
| @Override |
| public String getString(String namespace, String name, String defaultValue) { |
| String value = getProperty(namespace, name); |
| return value != null ? value : defaultValue; |
| } |
| |
| @Override |
| public int getInt(String namespace, String name, int defaultValue) { |
| String value = getProperty(namespace, name); |
| if (value == null) { |
| return defaultValue; |
| } |
| try { |
| return Integer.parseInt(value); |
| } catch (NumberFormatException e) { |
| return defaultValue; |
| } |
| } |
| |
| @Override |
| public long getLong(String namespace, String name, long defaultValue) { |
| String value = getProperty(namespace, name); |
| if (value == null) { |
| return defaultValue; |
| } |
| try { |
| return Long.parseLong(value); |
| } catch (NumberFormatException e) { |
| return defaultValue; |
| } |
| } |
| |
| @Override |
| public float getFloat(String namespace, String name, float defaultValue) { |
| String value = getProperty(namespace, name); |
| if (value == null) { |
| return defaultValue; |
| } |
| try { |
| return Float.parseFloat(value); |
| } catch (NumberFormatException e) { |
| return defaultValue; |
| } |
| } |
| |
| @Override |
| public boolean getBoolean(String namespace, String name, boolean defaultValue) { |
| String value = getProperty(namespace, name); |
| return value != null ? Boolean.parseBoolean(value) : defaultValue; |
| } |
| |
| @Override |
| public void addOnPropertiesChangedListener(String namespace, Executor executor, |
| DeviceConfig.OnPropertiesChangedListener listener) { |
| Pair<String, Executor> oldNamespace = mListeners.get(listener); |
| if (oldNamespace == null) { |
| // Brand new listener, add it to the list. |
| mListeners.put(listener, new Pair<>(namespace, executor)); |
| } else if (namespace.equals(oldNamespace.first)) { |
| // Listener is already registered for this namespace, update executor just in case. |
| mListeners.put(listener, new Pair<>(namespace, executor)); |
| } else { |
| // DeviceConfig allows re-registering listeners for different namespaces, but that |
| // silently unregisters the prior namespace. This likely isn't something the caller |
| // intended. |
| throw new IllegalStateException("Listener " + listener + " already registered. This" |
| + "is technically allowed by DeviceConfig, but likely indicates a logic " |
| + "error."); |
| } |
| } |
| |
| @Override |
| public void removeOnPropertiesChangedListener( |
| DeviceConfig.OnPropertiesChangedListener listener) { |
| mListeners.remove(listener); |
| } |
| } |