1 /*
2  * Copyright (C) 2014 The Libphonenumber Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.i18n.phonenumbers;
18 
19 import java.io.InputStream;
20 
21 /**
22  * Interface for caller to specify a customized phone metadata loader.
23  */
24 public interface MetadataLoader {
25   /**
26    * Returns an input stream corresponding to the metadata to load.
27    *
28    * @param metadataFileName File name (including path) of metadata to load. File path is an
29    *     absolute class path like /com/google/i18n/phonenumbers/data/PhoneNumberMetadataProto.
30    * @return The input stream for the metadata file. The library will close this stream
31    *     after it is done. Return null in case the metadata file could not be found.
32    */
loadMetadata(String metadataFileName)33   public InputStream loadMetadata(String metadataFileName);
34 }
35