Mercurial > hg > monetdb-java

annotate src/main/java/nl/cwi/monetdb/util/Exporter.java @ 307:05549bc7ed26

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add "final" keyword to classes, method arguments and local variables where possible.
author Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date Wed, 21 Aug 2019 19:16:02 +0200 (2019-08-21)
parents d4baf8a4b43a
children 8a96a4a13528
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 *
261
d4baf8a4b43a Update Copyright year to 2019
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 200
diff changeset
6 * Copyright 1997 - July 2008 CWI, August 2008 - 2019 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
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
9 package nl.cwi.monetdb.util;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
10
70
17fbaf2635bb Expand import java.*.* statements
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 0
diff changeset
11 import java.io.PrintWriter;
17fbaf2635bb Expand import java.*.* statements
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 0
diff changeset
12 import java.sql.DatabaseMetaData;
17fbaf2635bb Expand import java.*.* statements
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 0
diff changeset
13 import java.sql.ResultSet;
17fbaf2635bb Expand import java.*.* statements
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 0
diff changeset
14 import java.sql.SQLException;
0
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 public abstract class Exporter {
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
17 protected PrintWriter out;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
18 protected boolean useSchema;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
19
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
20 protected Exporter(final PrintWriter out) {
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
21 this.out = out;
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
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
24 public abstract void dumpSchema(
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
25 final DatabaseMetaData dbmd,
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 final String type,
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
27 final String catalog,
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 final String schema,
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 final String name) throws SQLException;
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
30
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
31 public abstract void dumpResultSet(final ResultSet rs) throws SQLException;
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
32
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
33 public abstract void setProperty(final int type, final int value) throws Exception;
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 public abstract int getProperty(final int type) throws Exception;
70
17fbaf2635bb Expand import java.*.* statements
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 0
diff changeset
35
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
36 //=== shared utilities
70
17fbaf2635bb Expand import java.*.* statements
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 0
diff changeset
37
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
38 public void useSchemas(final boolean use) {
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
39 useSchema = use;
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
40 }
70
17fbaf2635bb Expand import java.*.* statements
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 0
diff changeset
41
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
42 /**
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
43 * returns the given string between two double quotes for usage as
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
44 * identifier such as column or table name in SQL queries.
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
45 *
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
46 * @param in the string to quote
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
47 * @return the quoted string
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
48 */
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
49 protected static String dq(final String in) {
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
50 return "\"" + in.replaceAll("\\\\", "\\\\\\\\").replaceAll("\"", "\\\\\"") + "\"";
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
51 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
52
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
53 /**
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
54 * returns the given string between two single quotes for usage as
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
55 * string literal in SQL queries.
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
56 *
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
57 * @param in the string to quote
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
58 * @return the quoted string
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
59 */
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
60 protected static String q(final String in) {
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
61 return "'" + in.replaceAll("\\\\", "\\\\\\\\").replaceAll("'", "\\\\'") + "'";
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
62 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
63
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
64 /**
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
65 * Simple helper function to repeat a given character a number of
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
66 * times.
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
67 *
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
68 * @param chr the character to repeat
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
69 * @param cnt the number of times to repeat chr
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
70 * @return a String holding cnt times chr
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
71 */
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
72 protected static String repeat(final char chr, final int cnt) {
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
73 final char[] buf = new char[cnt];
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
74 java.util.Arrays.fill(buf, chr);
0
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
75 return new String(buf);
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
76 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
Sjoerd Mullender <sjoerd@acm.org>
parents:
diff changeset
77 }