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/*
* 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.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. */
public 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;
}
}
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