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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.plugins.invoker;
20  
21  import java.io.File;
22  import java.io.IOException;
23  import java.io.OutputStream;
24  import java.nio.file.Files;
25  import java.nio.file.Path;
26  import java.nio.file.StandardOpenOption;
27  
28  import org.apache.maven.plugin.logging.Log;
29  
30  /**
31   *
32   */
33  class FileLoggerAppender extends FileLogger {
34  
35      /**
36       * Creates a new logger that appends to the specified file and optionally mirrors messages to the given mojo logger.
37       *
38       * @param outputFile The path to the output file, must not be <code>null</code>.
39       * @param log The mojo logger to additionally output messages to, may be <code>null</code> if not used.
40       * @throws IOException If the output file could not be created.
41       */
42      FileLoggerAppender(File outputFile, final Log log) throws IOException {
43          super(outputFile, log);
44      }
45  
46      @Override
47      protected OutputStream createOutputStream(Path outputPath) throws IOException {
48          return Files.newOutputStream(outputPath, StandardOpenOption.APPEND, StandardOpenOption.CREATE);
49      }
50  }