diff options
Diffstat (limited to 'java/com/android/dialer/assisteddialing/CountryCodeProvider.java')
-rw-r--r-- | java/com/android/dialer/assisteddialing/CountryCodeProvider.java | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/java/com/android/dialer/assisteddialing/CountryCodeProvider.java b/java/com/android/dialer/assisteddialing/CountryCodeProvider.java new file mode 100644 index 000000000..b12b3ddc0 --- /dev/null +++ b/java/com/android/dialer/assisteddialing/CountryCodeProvider.java @@ -0,0 +1,107 @@ +/* + * Copyright (C) 2017 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.dialer.assisteddialing; + +import android.annotation.TargetApi; +import android.os.Build.VERSION_CODES; +import android.support.annotation.VisibleForTesting; +import android.text.TextUtils; +import android.util.ArraySet; +import com.android.dialer.common.LogUtil; +import com.android.dialer.configprovider.ConfigProvider; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Locale; +import java.util.Set; +import java.util.StringTokenizer; +import java.util.stream.Collectors; + +/** A class to provide the appropriate country codes related to assisted dialing. */ +@TargetApi(VERSION_CODES.N) +@SuppressWarnings("AndroidApiChecker") // Java 8 APIs +final class CountryCodeProvider { + + // TODO(erfanian): Ensure the below standard is consistent between libphonenumber and the + // platform. + // ISO 3166-1 alpha-2 Country Codes that are eligible for assisted dialing. + @VisibleForTesting + static final List<String> DEFAULT_COUNTRY_CODES = + Arrays.asList( + "CA" /* Canada */, + "GB" /* United Kingdom */, + "JP" /* Japan */, + "MX" /* Mexico */, + "US" /* United States */); + + private final Set<String> supportedCountryCodes; + + CountryCodeProvider(ConfigProvider configProvider) { + supportedCountryCodes = + parseConfigProviderCountryCodes( + configProvider.getString("assisted_dialing_csv_country_codes", "")) + .stream() + .map(v -> v.toUpperCase(Locale.US)) + .collect(Collectors.toCollection(ArraySet::new)); + LogUtil.i( + "CountryCodeProvider.CountryCodeProvider", "Using country codes: " + supportedCountryCodes); + } + + /** Checks whether a supplied country code is supported. */ + public boolean isSupportedCountryCode(String countryCode) { + return supportedCountryCodes.contains(countryCode); + } + + private List<String> parseConfigProviderCountryCodes(String configProviderCountryCodes) { + if (TextUtils.isEmpty(configProviderCountryCodes)) { + LogUtil.i( + "Constraints.parseConfigProviderCountryCodes", + "configProviderCountryCodes was empty, returning default"); + return DEFAULT_COUNTRY_CODES; + } + + StringTokenizer tokenizer = new StringTokenizer(configProviderCountryCodes, ","); + + if (tokenizer.countTokens() < 1) { + LogUtil.i( + "Constraints.parseConfigProviderCountryCodes", "insufficient provided country codes"); + return DEFAULT_COUNTRY_CODES; + } + + List<String> parsedCountryCodes = new ArrayList<>(); + while (tokenizer.hasMoreTokens()) { + String foundLocale = tokenizer.nextToken(); + if (foundLocale == null) { + LogUtil.i( + "Constraints.parseConfigProviderCountryCodes", + "Unexpected empty value, returning default."); + return DEFAULT_COUNTRY_CODES; + } + + if (foundLocale.length() != 2) { + LogUtil.i( + "Constraints.parseConfigProviderCountryCodes", + "Unexpected locale %s, returning default", + foundLocale); + return DEFAULT_COUNTRY_CODES; + } + + parsedCountryCodes.add(foundLocale); + } + return parsedCountryCodes; + } +} |