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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002,2010 Oracle. All rights reserved.
*
* $Id: MakeLogHeaderVersionData.java,v 1.10.2.2 2010/01/04 15:30:44 cwl Exp $
*/
package com.sleepycat.je.logversion;
import java.io.File;
import java.util.logging.Level;
import com.sleepycat.je.EnvironmentConfig;
import com.sleepycat.je.Environment;
import com.sleepycat.je.config.EnvironmentParams;
import com.sleepycat.je.util.TestUtils;
/**
* This standalone command line program creates a single 00000000.jdb log file.
* It was used to generate maxversion.jdb and minversion.jdb, and although it
* may never need to be used again, below are instructions.
*
* <p>Before running this program change LogEntryType.LOG_VERSION to
* Integer.MAX_VALUE or zero temporarily, just for creating a file with the
* maximum or minimum version number. A single command line argument is
* required for the home directory. After running this program rename the
* 00000000.jdb file to maxversion.jdb or minversion.jdb file in the directory
* of this source package. When adding it to CVS make sure to use -kb since it
* is a binary file. Don't forget to change LogEntryType.LOG_VERSION back to
* the correct value.</p>
*
* @see LogHeaderVersionTest
*/
public class MakeLogHeaderVersionData {
private MakeLogHeaderVersionData() {
}
public static void main(String[] args)
throws Exception {
if (args.length != 1) {
throw new Exception("Home directory arg is required.");
}
File homeDir = new File(args[0]);
File logFile = new File(homeDir, TestUtils.LOG_FILE_NAME);
if (logFile.exists()) {
throw new Exception("Home directory must be empty of log files.");
}
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setAllowCreate(true);
envConfig.setTransactional(true);
/* Make as small a log as possible to save space in CVS. */
envConfig.setConfigParam
(EnvironmentParams.JE_LOGGING_LEVEL.getName(),
Level.OFF.getName());
envConfig.setConfigParam
(EnvironmentParams.ENV_RUN_INCOMPRESSOR.getName(), "false");
envConfig.setConfigParam
(EnvironmentParams.ENV_RUN_CLEANER.getName(), "false");
envConfig.setConfigParam
(EnvironmentParams.ENV_RUN_EVICTOR.getName(), "false");
envConfig.setConfigParam
(EnvironmentParams.ENV_RUN_CHECKPOINTER.getName(), "false");
Environment env = new Environment(homeDir, envConfig);
env.close();
if (!logFile.exists()) {
throw new Exception("Home directory does not contain: " + logFile);
}
System.out.println("Sucessfully created: " + logFile);
}
}
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