1/*
2 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 *
26 */
27
28package bench;
29
30import java.io.OutputStream;
31import java.io.PrintStream;
32import java.io.IOException;
33import java.util.Arrays;
34import java.util.Date;
35import java.util.Properties;
36
37/**
38 * Benchmark text report generator.
39 */
40public class TextReporter implements Reporter {
41
42    static final int PRECISION = 3;
43    static final int INDEX_WIDTH = 3;
44    static final int NAME_WIDTH = 30;
45    static final int TIME_WIDTH = 10;
46    static final int SCORE_WIDTH = 10;
47    static final int PROPNAME_WIDTH = 25;
48    static final String[] PROPNAMES = { "os.name", "os.arch", "os.version",
49        "java.home", "java.vm.version", "java.vm.vendor", "java.vm.name",
50        "java.compiler", "java.class.path" };
51
52    OutputStream out;
53    String title;
54
55    /**
56     * Create TextReporter which writes to the given stream.
57     */
58    public TextReporter(OutputStream out, String title) {
59        this.out = out;
60        this.title = title;
61    }
62
63    /**
64     * Generate text report.
65     */
66    public void writeReport(BenchInfo[] binfo, Properties props)
67        throws IOException
68    {
69        PrintStream p = new PrintStream(out);
70        float total = 0.0f;
71
72        p.println("\n" + title);
73        p.println(pad('-', title.length()));
74        p.println("");
75        for (int i = 0; i < PROPNAMES.length; i++) {
76            p.println(fit(PROPNAMES[i] + ":", PROPNAME_WIDTH) +
77                    props.getProperty(PROPNAMES[i]));
78        }
79        p.println("");
80
81        p.println(fit("#", INDEX_WIDTH) + "  " +
82                fit("Benchmark Name", NAME_WIDTH) + "  " +
83                fit("Time (ms)", TIME_WIDTH) + "  " +
84                fit("Score", SCORE_WIDTH));
85        p.println(pad('-', INDEX_WIDTH + NAME_WIDTH + TIME_WIDTH +
86                    SCORE_WIDTH + 6));
87
88        for (int i = 0; i < binfo.length; i++) {
89            BenchInfo b = binfo[i];
90            p.print(fit(Integer.toString(i), INDEX_WIDTH) + "  ");
91            p.print(fit(b.getName(), NAME_WIDTH) + "  ");
92            if (b.getTime() != -1) {
93                float score = b.getTime() * b.getWeight();
94                total += score;
95                p.print(fit(Long.toString(b.getTime()), TIME_WIDTH) + "  ");
96                p.println(fit(Util.floatToString(score, PRECISION),
97                            SCORE_WIDTH));
98            }
99            else {
100                p.print(fit("--", TIME_WIDTH) + "  ");
101                p.println(fit("--", SCORE_WIDTH));
102            }
103        }
104        p.println(pad('-', INDEX_WIDTH + NAME_WIDTH + TIME_WIDTH +
105                    SCORE_WIDTH + 6));
106        p.println(fit("Total score", INDEX_WIDTH + NAME_WIDTH + TIME_WIDTH +
107                    4) + "  " + Util.floatToString(total, PRECISION));
108        p.println("");
109        p.println("-----");
110        p.println("Report generated on " + new Date() + "\n");
111        p.println("");
112    }
113
114    /**
115     * Extend or truncate string so it fits in the given space.
116     */
117    private static String fit(String s, int len) {
118        int slen = s.length();
119        StringBuffer buf = new StringBuffer(s);
120        buf.setLength(len);
121        for (int i = slen; i < len; i++)
122            buf.setCharAt(i, ' ');
123        return buf.toString();
124    }
125
126    /**
127     * Return string with given number of chars.
128     */
129    private static String pad(char c, int len) {
130        char[] buf = new char[len];
131        Arrays.fill(buf, c);
132        return new String(buf);
133    }
134}
135