1 /*
2  * Copyright 2017 Google Inc.
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  *     https://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 trebuchet.importers
18 
19 import trebuchet.io.StreamingReader
20 import trebuchet.model.fragments.ModelFragment
21 
22 interface Importer {
23     /**
24      * Produces a ModelFragment from the given DataStream. The importer may return null at any point if it
25      * is unable to process the stream for whatever reason.
26      *
27      * @param stream The stream to read from
28      * @return A ModelFragment built from the input, or null if the importer was unable to import
29      */
importnull30     fun import(stream: StreamingReader): ModelFragment?
31 }