com.google.i18n.phonenumbers.metadata.source.MultiFileModeFileNameProvider Maven / Gradle / Ivy
/*
* Copyright (C) 2022 The Libphonenumber Authors
*
* 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.google.i18n.phonenumbers.metadata.source;
import java.util.regex.Pattern;
/**
* {@link PhoneMetadataFileNameProvider} implementation which appends key as a suffix to the
* predefined metadata file name base.
*/
public final class MultiFileModeFileNameProvider implements PhoneMetadataFileNameProvider {
private final String phoneMetadataFileNamePrefix;
private static final Pattern ALPHANUMERIC = Pattern.compile("^[\\p{L}\\p{N}]+$");
public MultiFileModeFileNameProvider(String phoneMetadataFileNameBase) {
this.phoneMetadataFileNamePrefix = phoneMetadataFileNameBase + "_";
}
@Override
public String getFor(Object key) {
String keyAsString = key.toString();
if (!ALPHANUMERIC.matcher(keyAsString).matches()) {
throw new IllegalArgumentException("Invalid key: " + keyAsString);
}
return phoneMetadataFileNamePrefix + key;
}
}