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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.settings.io;
20  
21  import java.io.File;
22  import java.io.IOException;
23  import java.io.OutputStream;
24  import java.io.Writer;
25  import java.util.Map;
26  
27  import org.apache.maven.settings.Settings;
28  
29  /**
30   * Handles serialization of settings into some kind of textual format like XML.
31   *
32   */
33  public interface SettingsWriter {
34  
35      /**
36       * Writes the supplied settings to the specified file. Any non-existing parent directories of the output file will
37       * be created automatically.
38       *
39       * @param output The file to serialize the settings to, must not be {@code null}.
40       * @param options The options to use for serialization, may be {@code null} to use the default values.
41       * @param settings The settings to serialize, must not be {@code null}.
42       * @throws IOException If the settings could not be serialized.
43       */
44      void write(File output, Map<String, Object> options, Settings settings) throws IOException;
45  
46      /**
47       * Writes the supplied settings to the specified character writer. The writer will be automatically closed before
48       * the method returns.
49       *
50       * @param output The writer to serialize the settings to, must not be {@code null}.
51       * @param options The options to use for serialization, may be {@code null} to use the default values.
52       * @param settings The settings to serialize, must not be {@code null}.
53       * @throws IOException If the settings could not be serialized.
54       */
55      void write(Writer output, Map<String, Object> options, Settings settings) throws IOException;
56  
57      /**
58       * Writes the supplied settings to the specified byte stream. The stream will be automatically closed before the
59       * method returns.
60       *
61       * @param output The stream to serialize the settings to, must not be {@code null}.
62       * @param options The options to use for serialization, may be {@code null} to use the default values.
63       * @param settings The settings to serialize, must not be {@code null}.
64       * @throws IOException If the settings could not be serialized.
65       */
66      void write(OutputStream output, Map<String, Object> options, Settings settings) throws IOException;
67  }