Fully deprecate sys prop for aconfig flags (09bc9a73) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/am/SettingsToPropertiesMapper.java

+0 −119

Original line number	Diff line number	Diff line
		@@ -257,8 +257,6 @@ public class SettingsToPropertiesMapper {

		private final String[] mDeviceConfigScopes;

		private final String[] mDeviceConfigAconfigScopes;

		private final ContentResolver mContentResolver;

		@VisibleForTesting
		@@ -269,7 +267,6 @@ public class SettingsToPropertiesMapper {
		mContentResolver = contentResolver;
		mGlobalSettings = globalSettings;
		mDeviceConfigScopes = deviceConfigScopes;
		mDeviceConfigAconfigScopes = deviceConfigAconfigScopes;
		}

		@VisibleForTesting
		@@ -315,36 +312,6 @@ public class SettingsToPropertiesMapper {
		return;
		}
		setProperty(propertyName, properties.getString(key, null));

		// for legacy namespaces, they can also be used for trunk stable
		// purposes. so push flag also into trunk stable slot in sys prop,
		// later all legacy usage will be refactored and the sync to old
		// sys prop slot can be removed.
		String aconfigPropertyName = makeAconfigFlagPropertyName(scope, key);
		if (aconfigPropertyName == null) {
		logErr("unable to construct system property for " + scope + "/"
		+ key);
		return;
		}
		setProperty(aconfigPropertyName, properties.getString(key, null));
		}
		});
		}

		for (String deviceConfigAconfigScope : mDeviceConfigAconfigScopes) {
		DeviceConfig.addOnPropertiesChangedListener(
		deviceConfigAconfigScope,
		AsyncTask.THREAD_POOL_EXECUTOR,
		(DeviceConfig.Properties properties) -> {
		String scope = properties.getNamespace();
		for (String key : properties.getKeyset()) {
		String aconfigPropertyName = makeAconfigFlagPropertyName(scope, key);
		if (aconfigPropertyName == null) {
		logErr("unable to construct system property for " + scope + "/"
		+ key);
		return;
		}
		setProperty(aconfigPropertyName, properties.getString(key, null));
		}
		});
		}
		@@ -354,34 +321,6 @@ public class SettingsToPropertiesMapper {
		NAMESPACE_REBOOT_STAGING,
		newSingleThreadScheduledExecutor(),
		(DeviceConfig.Properties properties) -> {

		for (String flagName : properties.getKeyset()) {
		String flagValue = properties.getString(flagName, null);
		if (flagName == null \|\| flagValue == null) {
		continue;
		}

		int idx = flagName.indexOf(NAMESPACE_REBOOT_STAGING_DELIMITER);
		if (idx == -1 \|\| idx == flagName.length() - 1 \|\| idx == 0) {
		logErr("invalid staged flag: " + flagName);
		continue;
		}

		String actualNamespace = flagName.substring(0, idx);
		String actualFlagName = flagName.substring(idx+1);
		String propertyName = "next_boot." + makeAconfigFlagPropertyName(
		actualNamespace, actualFlagName);

		if (Flags.supportLocalOverridesSysprops()) {
		// Don't propagate if there is a local override.
		String overrideName = actualNamespace + ":" + actualFlagName;
		if (DeviceConfig.getProperty(NAMESPACE_LOCAL_OVERRIDES, overrideName) != null) {
		continue;
		}
		}
		setProperty(propertyName, flagValue);
		}

		// send prop stage request to new storage
		if (enableAconfigStorageDaemon()) {
		stageFlagsInNewStorage(properties);
		@@ -397,42 +336,6 @@ public class SettingsToPropertiesMapper {
		if (enableAconfigStorageDaemon()) {
		setLocalOverridesInNewStorage(properties);
		}

		if (Flags.supportLocalOverridesSysprops()) {
		String overridesNamespace = properties.getNamespace();
		for (String key : properties.getKeyset()) {
		String realNamespace = key.split(":")[0];
		String realFlagName = key.split(":")[1];
		String aconfigPropertyName =
		makeAconfigFlagPropertyName(realNamespace, realFlagName);
		if (aconfigPropertyName == null) {
		logErr("unable to construct system property for " + realNamespace + "/"
		+ key);
		return;
		}

		if (properties.getString(key, null) == null) {
		String deviceConfigValue =
		DeviceConfig.getProperty(realNamespace, realFlagName);
		String stagedDeviceConfigValue =
		DeviceConfig.getProperty(NAMESPACE_REBOOT_STAGING,
		realNamespace + "*" + realFlagName);

		setProperty(aconfigPropertyName, deviceConfigValue);
		if (stagedDeviceConfigValue == null) {
		setProperty("next_boot." + aconfigPropertyName, deviceConfigValue);
		} else {
		setProperty("next_boot." + aconfigPropertyName, stagedDeviceConfigValue);
		}
		} else {
		// Otherwise, propagate the override to sysprops.
		setProperty(aconfigPropertyName, properties.getString(key, null));
		// If there's a staged value, make sure it's the override value.
		setProperty("next_boot." + aconfigPropertyName,
		properties.getString(key, null));
		}
		}
		}
		});
		}

		@@ -745,28 +648,6 @@ public class SettingsToPropertiesMapper {
		sendAconfigdRequests(requests);
		}

		/**
		* system property name constructing rule for aconfig flags:
		* "persist.device_config.aconfig_flags.[category_name].[flag_name]".
		* If the name contains invalid characters or substrings for system property name,
		* will return null.
		* @param categoryName
		* @param flagName
		* @return
		*/
		@VisibleForTesting
		static String makeAconfigFlagPropertyName(String categoryName, String flagName) {
		String propertyName = SYSTEM_PROPERTY_PREFIX + "aconfig_flags." +
		categoryName + "." + flagName;

		if (!propertyName.matches(SYSTEM_PROPERTY_VALID_CHARACTERS_REGEX)
		\|\| propertyName.contains(SYSTEM_PROPERTY_INVALID_SUBSTRING)) {
		return null;
		}

		return propertyName;
		}

		private void setProperty(String key, String value) {
		// Check if need to clear the property
		if (value == null) {