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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.core.testUtil;
15  
16  import java.io.BufferedReader;
17  import java.io.File;
18  import java.io.FileInputStream;
19  import java.io.IOException;
20  import java.io.InputStream;
21  import java.io.InputStreamReader;
22  import java.util.Enumeration;
23  import java.util.List;
24  import java.util.zip.GZIPInputStream;
25  import java.util.zip.ZipEntry;
26  import java.util.zip.ZipFile;
27  
28  public class FileToBufferUtil {
29  
30      static public void readIntoList(File file, List<String> stringList) throws IOException {
31  
32          if (file.getName().endsWith(".gz")) {
33              gzFileReadIntoList(file, stringList);
34          } else if (file.getName().endsWith(".zip")) {
35              zipFileReadIntoList(file, stringList);
36          } else {
37              regularReadIntoList(file, stringList);
38          }
39      }
40  
41      private static void zipFileReadIntoList(File file, List<String> stringList) throws IOException {
42          System.out.println("Reading zip file [" + file + "]");
43          try (ZipFile zipFile = new ZipFile(file)) {
44              Enumeration<? extends ZipEntry> entries = zipFile.entries();
45              ZipEntry entry = entries.nextElement();
46              readInputStream(zipFile.getInputStream(entry), stringList);
47          }
48      }
49  
50      static void readInputStream(InputStream is, List<String> stringList) throws IOException {
51          BufferedReader in = new BufferedReader(new InputStreamReader(is));
52          String line;
53          while ((line = in.readLine()) != null) {
54              stringList.add(line);
55          }
56          in.close();
57      }
58  
59      static public void regularReadIntoList(File file, List<String> stringList) throws IOException {
60          FileInputStream fis = new FileInputStream(file);
61          BufferedReader in = new BufferedReader(new InputStreamReader(fis));
62          String line;
63          while ((line = in.readLine()) != null) {
64              stringList.add(line);
65          }
66          in.close();
67      }
68  
69      static public void gzFileReadIntoList(File file, List<String> stringList) throws IOException {
70          FileInputStream fis = new FileInputStream(file);
71          GZIPInputStream gzis = new GZIPInputStream(fis);
72          readInputStream(gzis, stringList);
73      }
74  
75  }