Java example source code file (ResultSet.java)

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Java - Java tags/keywords

enumeration, hashtable, object, properties, result, resultset, string, util, vector

The ResultSet.java Java example source code

/*
 * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This source code is provided to illustrate the usage of a given feature
 * or technique and has been deliberately simplified. Additional steps
 * required for a production-quality application, such as security checks,
 * input validation and proper error handling, might not be present in
 * this sample code.
 */


package j2dbench;

import java.util.Hashtable;
import java.util.Properties;
import java.util.Enumeration;
import java.util.Vector;
import java.io.PrintWriter;

public class ResultSet {
    static Hashtable preferprops;
    static Hashtable ignoreprops;

    // Preferred props - will be listed even if undefined
    static String preferredkeys[] = {
        "java.version",
        "java.runtime.version",
        "java.class.version",
        "java.vm.version",
        "java.vm.name",
        "java.vm.info",
        "java.home",
        "java.compiler",
        "os.arch",
        "os.name",
        "os.version",
        "user.name",
        "sun.cpu.endian",
        "sun.cpu.isalist",
    };

    // Ignored props - will not be copied to results file
    static String ignoredkeys[] = {
        "user.dir",
        "user.home",
        "user.timezone",
        "path.separator",
        "line.separator",
        "file.separator",
        "file.encoding",
        "file.encoding.pkg",
        "java.class.path",
        "java.library.path",
        "java.io.tmpdir",
        "java.ext.dirs",
        "java.endorsed.dirs",
        "java.util.prefs.PreferencesFactory",
        "sun.java2d.fontpath",
        "sun.boot.library.path",
        "sun.boot.class.path",
    };

    /*
     * Other props, as of 1.4.0, not classified as "preferred" or "ignored"
     * Allowed to propagate to the results file if defined.
     *
     * java.runtime.name
     * java.vendor
     * java.vendor.url
     * java.vendor.url.bug
     * java.specification.name
     * java.specification.vendor
     * java.specification.version
     * java.vm.specification.name
     * java.vm.specification.vendor
     * java.vm.specification.version
     * java.vm.vendor
     * java.awt.graphicsenv
     * java.awt.printerjob
     * user.language
     * sun.os.patch.level
     * sun.arch.data.model
     * sun.io.unicode.encoding
     */

    static String unknown = "unknown";

    static {
        preferprops = new Hashtable();
        for (int i = 0; i < preferredkeys.length; i++) {
            preferprops.put(preferredkeys[i], unknown);
        }
        ignoreprops = new Hashtable();
        for (int i = 0; i < ignoredkeys.length; i++) {
            ignoreprops.put(ignoredkeys[i], unknown);
        }
    }

    Hashtable props;
    Vector results;
    long start;
    long end;
    String title;
    String description;

    public ResultSet() {
        Properties sysprops = System.getProperties();
        props = (Hashtable) preferprops.clone();
        Enumeration enum_ = sysprops.keys();
        while (enum_.hasMoreElements()) {
            Object key = enum_.nextElement();
            if (!ignoreprops.containsKey(key)) {
                props.put(key, sysprops.get(key));
            }
        }
        results = new Vector();
        start = System.currentTimeMillis();
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public void setDescription(String desc) {
        this.description = desc;
    }

    public void record(Result result) {
        results.addElement(result);
    }

    public void summarize() {
        end = System.currentTimeMillis();
        for (int i = 0; i < results.size(); i++) {
            ((Result) results.elementAt(i)).summarize();
        }
    }

    public void write(PrintWriter pw) {
        pw.println("<result-set version=\"0.1\" name=\""+title+"\">");
        pw.println("  <test-desc>"+description+"");
        pw.println("  <test-date start=\""+start+"\" end=\""+end+"\"/>");
        for (int i = 0; i < preferredkeys.length; i++) {
            String key = preferredkeys[i];
            pw.println("  <sys-prop key=\""+key+
                       "\" value=\""+props.get(key)+"\"/>");
        }
        Enumeration enum_ = props.keys();
        while (enum_.hasMoreElements()) {
            Object key = enum_.nextElement();
            if (!preferprops.containsKey(key)) {
                pw.println("  <sys-prop key=\""+key+
                           "\" value=\""+props.get(key)+"\"/>");
            }
        }
        for (int i = 0; i < results.size(); i++) {
            ((Result) results.elementAt(i)).write(pw);
        }
        pw.println("</result-set>");
    }
}