HSQLDB example source code file (SqlToolSprayer.java)

This example HSQLDB source code file (SqlToolSprayer.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - HSQLDB tags/keywords

arraylist, arraylist, exception, file, file, fileinputstream, io, ls, ls, properties, sqltoolsprayer, string, string, syntax_msg, system, util

The HSQLDB SqlToolSprayer.java source code

/* Copyright (c) 2001-2008, The HSQL Development Group
 * 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 the HSQL Development Group 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 HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
 * 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.
 */


package org.hsqldb.util;

import java.io.File;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.Properties;

/* $Id: SqlToolSprayer.java,v 1.21 2007/06/12 02:37:57 unsaved Exp $ */

/**
 * Sql Tool Sprayer.
 * Invokes SqlTool.objectMain() multiple times with the same SQL.
 * Invokes for multiple urlids and/or retries.
 *
 * See JavaDocs for the main method for syntax of how to run.
 *
 * System properties used if set:
 * <UL>
 *      <LI>sqltoolsprayer.period (in ms.)
 *      <LI>sqltoolsprayer.maxtime (in ms.)
 *      <LI>sqltoolsprayer.rcfile (filepath)
 * </UL>
 *
 * @see @main()
 * @version $Revision: 1.21 $
 * @author Blaine Simpson unsaved@users
 */
public class SqlToolSprayer {

    public static String LS = System.getProperty("line.separator");
    private static String SYNTAX_MSG =
        "SYNTAX:  java [-D...] SqlToolSprayer 'SQL;' [urlid1 urlid2...]\n"
        + "System properties you may use [default values]:\n"
        + "    sqltoolsprayer.period (in ms.) [500]\n"
        + "    sqltoolsprayer.maxtime (in ms.) [0]\n"
        + "    sqltoolsprayer.monfile (filepath) [none]\n"
        + "    sqltoolsprayer.rcfile (filepath) [none.  SqlTool default used.]"
        + "\n    sqltoolsprayer.propfile (filepath) [none]";
    static {
        if (!LS.equals("\n")) {
            SYNTAX_MSG = SYNTAX_MSG.replaceAll("\n", LS);
        }
    }

    public static void main(String[] sa) {

        if (sa.length < 1) {
            System.err.println(SYNTAX_MSG);
            System.exit(4);
        }

        long period = ((System.getProperty("sqltoolsprayer.period") == null)
                       ? 500
                       : Integer.parseInt(
                           System.getProperty("sqltoolsprayer.period")));
        long maxtime = ((System.getProperty("sqltoolsprayer.maxtime") == null)
                        ? 0
                        : Integer.parseInt(
                            System.getProperty("sqltoolsprayer.maxtime")));
        String rcFile   = System.getProperty("sqltoolsprayer.rcfile");
        String propfile = System.getProperty("sqltoolsprayer.propfile");
        File monitorFile =
            (System.getProperty("sqltoolsprayer.monfile") == null) ? null
                                                                   : new File(
                                                                       System.getProperty(
                                                                           "sqltoolsprayer.monfile"));
        ArrayList urlids = new ArrayList();

        if (propfile != null) {
            try {
                getUrlsFromPropFile(propfile, urlids);
            } catch (Exception e) {
                System.err.println("Failed to load property file '" + propfile
                                   + "':  " + e);
                System.exit(3);
            }
        }

        for (int i = 1; i < sa.length; i++) {
            urlids.add(sa[i]);
        }

        boolean[] status = new boolean[urlids.size()];

        for (int i = 0; i < status.length; i++) {
            status[i] = false;
        }

        String[] withRcArgs    = {
            "--sql", sa[0], "--rcfile", rcFile, null
        };
        String[] withoutRcArgs = {
            "--sql", sa[0], null
        };
        String[] sqlToolArgs   = (rcFile == null) ? withoutRcArgs
                                                  : withRcArgs;
        boolean  onefailed     = false;
        long     startTime     = (new Date()).getTime();

        while (true) {
            if (monitorFile != null && !monitorFile.exists()) {
                System.err.println("Required file is gone:  " + monitorFile);
                System.exit(2);
            }

            onefailed = false;

            for (int i = 0; i < status.length; i++) {
                if (status[i]) {
                    continue;
                }

                sqlToolArgs[sqlToolArgs.length - 1] = (String) urlids.get(i);

                try {
                    new SqlTool().objectMain(sqlToolArgs);

                    status[i] = true;

                    System.err.println("Success for instance '"
                                       + urlids.get(i) + "'");
                } catch (SqlTool.SqlToolException se) {
                    onefailed = true;
                }
            }

            if (!onefailed) {
                break;
            }

            if (maxtime == 0 || (new Date()).getTime() > startTime + maxtime) {
                break;
            }

            try {
                Thread.sleep(period);
            } catch (InterruptedException ie) {}
        }

        ArrayList failedUrlids = new ArrayList();

        // If all statuses true, then System.exit(0);
        for (int i = 0; i < status.length; i++) {
            if (status[i] != true) {
                failedUrlids.add(urlids.get(i));
            }
        }

        if (failedUrlids.size() > 0) {
            System.err.println("Failed instances:   " + failedUrlids);
            System.exit(1);
        }

        System.exit(0);
    }

    private static void getUrlsFromPropFile(String fileName,
            ArrayList al) throws Exception {

        Properties p = new Properties();

        p.load(new FileInputStream(fileName));

        int    i = -1;
        String val;

        while (true) {
            i++;

            val = p.getProperty("server.urlid." + i);

            if (val == null) {
                return;
            }

            al.add(val);
        }
    }
}