1 package org.opentrafficsim.base;
2
3 import java.io.BufferedWriter;
4 import java.io.File;
5 import java.io.FileOutputStream;
6 import java.io.IOException;
7 import java.io.OutputStreamWriter;
8 import java.util.zip.ZipEntry;
9 import java.util.zip.ZipOutputStream;
10
11 /**
12 * File writer.
13 * <p>
14 * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
15 * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
16 * <p>
17 * @version $Revision$, $LastChangedDate$, by $Author$, initial version 2 mei 2018 <br>
18 * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
19 * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
20 * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
21 */
22 public final class CompressedFileWriter
23 {
24
25 /**
26 * Constructor.
27 */
28 private CompressedFileWriter()
29 {
30 // utility
31 }
32
33 /**
34 * Returns a {@code BufferedWriter} to a file, zipped or not.
35 * @param file String; file
36 * @param zipped boolean; zipped or not
37 * @return BufferedWriter
38 */
39 public static BufferedWriter create(final String file, final boolean zipped)
40 {
41 String name = null;
42 String file2 = file;
43 if (zipped)
44 {
45 File f = new File(file);
46 name = f.getName();
47 if (!file.endsWith(".zip"))
48 {
49 file2 += ".zip";
50 }
51 }
52 try
53 {
54 FileOutputStream fos = new FileOutputStream(file2);
55 OutputStreamWriter osw;
56 if (zipped)
57 {
58 ZipOutputStream zos = new ZipOutputStream(fos);
59 zos.putNextEntry(new ZipEntry(name));
60 osw = new OutputStreamWriter(zos);
61 }
62 else
63 {
64 osw = new OutputStreamWriter(fos);
65 }
66 return new BufferedWriter(osw);
67 }
68 catch (IOException exception)
69 {
70 throw new RuntimeException("Could not write to file.", exception);
71 }
72 }
73
74 }