1 /*******************************************************************************
2 * Copyright (c) 2009 Ericsson
4 * All rights reserved. This program and the accompanying materials are
5 * made available under the terms of the Eclipse Public License v1.0 which
6 * accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * Francois Chouinard - Initial API and implementation
11 *******************************************************************************/
13 package org
.eclipse
.linuxtools
.tmf
;
15 import java
.io
.BufferedOutputStream
;
16 import java
.io
.DataOutputStream
;
18 import java
.io
.FileNotFoundException
;
19 import java
.io
.FileOutputStream
;
20 import java
.io
.IOException
;
21 import java
.util
.Random
;
24 * <b><u>CreateTestFiles</u></b>
26 * Create a number of event test files of various lengths.
28 * Events have the following format:
30 * <li> [timestamp] [source] [type] [ref] [field]*
31 * <li> There are NB_SOURCES sources and NB_TYPES types.
32 * <li> The number of fields (0 .. NB_TYPES-1) depends on the event type.
35 public class CreateTestFiles
{
37 // ========================================================================
39 // ========================================================================
41 private static final String FILE_NAMES
[] = { "Test-10", "Test-1K", "Test-10K", "Test-100K", "Test-1M", "Test-10M" };
42 private static final int FILE_SIZES
[] = { 10 , 1000 , 10000 , 100000 , 1000000 , 10000000 };
44 private static final int NB_SOURCES
= 15;
45 private static final int NB_TYPES
= 7;
47 // ========================================================================
49 // ========================================================================
54 public static void main(String
[] args
) {
57 System
.out
.println("Creating test files in directory: " + new File(".").getCanonicalPath() + File
.separator
+ "testfiles");
58 } catch (IOException e
) {
62 for (int i
= 0; i
< FILE_SIZES
.length
; i
++) {
64 createTestFile("testfiles" + File
.separator
+ "M-" + FILE_NAMES
[i
], FILE_SIZES
[i
], true);
65 createTestFile("testfiles" + File
.separator
+ "R-" + FILE_NAMES
[i
], FILE_SIZES
[i
], false);
66 } catch (Exception e
) {
70 System
.out
.println("Done.");
73 // ========================================================================
75 // ========================================================================
81 * @throws FileNotFoundException
84 private static void createTestFile(String file
, int size
, boolean monotonic
) throws FileNotFoundException
, IOException
{
86 System
.out
.println("Creating " + file
);
87 out
= new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file
)));
89 Random generator
= new Random(19580427 + size
);
91 for (int i
= 0; i
< size
; i
++) {
92 ts
+= monotonic ?
1 : generator
.nextInt(10);
93 int sourceIndex
= i
% NB_SOURCES
;
94 int typeIndex
= i
% NB_TYPES
;
95 out
.writeLong(ts
); // Timestamp
96 out
.writeUTF("Source-" + sourceIndex
); // Source
97 out
.writeUTF("Type-" + typeIndex
); // Type
98 out
.writeInt(i
+ 1); // Reference (event #)
99 for (int j
= 0; j
< typeIndex
; j
++) {
100 out
.writeUTF("Field-" + sourceIndex
+ "-" + j
);
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