Mercurial > hg > monetdb-java

annotate src/main/java/org/monetdb/util/Extract.java @ 391:f523727db392

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Moved Java classes from packages starting with nl.cwi.monetdb.* to package org.monetdb.* This naming complies to the Java Package Naming convention as MonetDB's main website is www.monetdb.org.
author Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date Thu, 12 Nov 2020 22:02:01 +0100 (2020-11-12)
parents src/main/java/nl/cwi/monetdb/util/Extract.java@54137aeb1f92
children bf9f6b6ecf40
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
1 /*
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
2 * This Source Code Form is subject to the terms of the Mozilla Public
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
5 *
350
54137aeb1f92 Update Copyright year.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 309
diff changeset
6 * Copyright 1997 - July 2008 CWI, August 2008 - 2020 MonetDB B.V.
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
7 */
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
8
391
f523727db392 Moved Java classes from packages starting with nl.cwi.monetdb.* to package org.monetdb.*
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 350
diff changeset
9 package org.monetdb.util;
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
10
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
11 import java.io.BufferedReader;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
12 import java.io.FileNotFoundException;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
13 import java.io.FileWriter;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
14 import java.io.IOException;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
15
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
16 /**
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
17 * This file contains a function to extract files from its including Jar
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
18 * package.
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
19 *
194
1296dbcc4958 Resolved javadoc many errors and warnings, such as:
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 90
diff changeset
20 * @author Ying Zhang "Y.Zhang@cwi.nl"
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
21 * @version 0.1
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
22 */
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
23 public class Extract {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
24 private static final int DEFAULT_BUFSIZE = 16386;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
25
307
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
26 public Extract() {}
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
27
307
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
28 /**
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
29 * Extracts a file from the Jar package which includes this class to
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
30 * the given destination
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
31 * @param fromFile The file to extract, including it absolute path
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
32 * inside its including Jar package.
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
33 * @param toFile Destination for the extracted file
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
34 * @throws FileNotFoundException If the file to extract can not be
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
35 * found in its including Jar package.
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
36 * @throws IOException If any error happens during
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
37 * creating/reading/writing files.
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
38 */
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
39 public static void extractFile(final String fromFile, final String toFile)
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
40 throws FileNotFoundException, IOException
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
41 {
309
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 307
diff changeset
42 final java.io.InputStream is = new Extract().getClass().getResourceAsStream(fromFile);
307
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
43 if (is == null) {
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
44 throw new FileNotFoundException("File " + fromFile +
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
45 " does not exist in the JAR package.");
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
46 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
47
309
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 307
diff changeset
48 final BufferedReader reader = new BufferedReader(new java.io.InputStreamReader(is));
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 307
diff changeset
49 final FileWriter writer = new FileWriter(toFile, false);
307
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
50 final char[] cbuf = new char[DEFAULT_BUFSIZE];
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
51 int ret = reader.read(cbuf, 0, DEFAULT_BUFSIZE);
05549bc7ed26 Add "final" keyword to classes, method arguments and local variables where possible.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 261
diff changeset
52 while (ret > 0) {
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
53 writer.write(cbuf, 0, ret);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
54 ret = reader.read(cbuf, 0, DEFAULT_BUFSIZE);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
55 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
56 reader.close();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
57 writer.close();
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
58 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
59 }