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benerator is a framework for creating realistic and valid high-volume test data, used for testing (unit/integration/load) and showcase setup. Metadata constraints are imported from systems and/or configuration files. Data can imported from and exported to files and systems, anonymized or generated from scratch. Domain packages provide reusable generators for creating domain-specific data as names and addresses internationalizable in language and region. It is strongly customizable with plugins and configuration options.

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/*
 * (c) Copyright 2013 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. 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.
 */

package org.databene.benerator;

import java.io.File;

import javax.script.ScriptEngineFactory;
import javax.script.ScriptEngineManager;

import org.databene.commons.LogCategories;
import org.databene.commons.StringUtil;
import org.databene.commons.SystemInfo;
import org.databene.commons.VMInfo;
import org.databene.commons.ui.InfoPrinter;
import org.databene.commons.version.VersionInfo;
import org.databene.commons.version.VersionNumber;
import org.databene.profile.Profiling;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Provides general utility methods for Benerator.


 * Created: 01.02.2013 16:20:10
 * @since 0.8.0
 * @author Volker Bergmann
 */
public class BeneratorUtil {
	
	private static final Logger CONFIG_LOGGER = LoggerFactory.getLogger(LogCategories.CONFIG);
	
	public static boolean isDescriptorFilePath(String filePath) {
		if (StringUtil.isEmpty(filePath))
			return false;
		String lcName = filePath.toLowerCase();
		return ("benerator.xml".equals(filePath) || lcName.replace(File.separatorChar, '/').endsWith("/benerator.xml") || lcName.endsWith(".ben.xml"));
	}
	
	public static void checkSystem(InfoPrinter printer) {
		printVersionInfo(printer);
		printer.printLines("Configured heap size limit: " + Runtime.getRuntime().maxMemory() / 1024 / 1024 + " MB");
		try {
			Class.forName("javax.script.ScriptEngine");
		} catch (ClassNotFoundException e) {
			CONFIG_LOGGER.error("You need to run benerator with Java 6 or greater!");
			if (SystemInfo.isMacOsx())
				CONFIG_LOGGER.error("Please check the manual for Java setup on Mac OS X.");
			System.exit(BeneratorConstants.EXIT_CODE_ERROR);
		}
		VersionNumber javaVersion = VersionNumber.valueOf(VMInfo.getJavaVersion());
		if (javaVersion.compareTo(VersionNumber.valueOf("1.6")) < 0)
			CONFIG_LOGGER.warn("benerator is written for and tested under Java 6 - " +
					"you managed to set up JSR 223, but may face other problems.");
		if (Profiling.isEnabled())
			CONFIG_LOGGER.warn("Profiling is active. This may lead to memory issues");
	}

	public static void printVersionInfo(InfoPrinter printer) {
		VersionInfo version = VersionInfo.getInfo("benerator");
		printer.printLines(
			"Benerator " + version.getVersion() + " build " + version.getBuildNumber(),
			"Java version " + VMInfo.getJavaVersion(),
			"JVM " + VMInfo.getJavaVmName() + " " + VMInfo.getJavaVmVersion() + " (" + VMInfo.getJavaVmVendor() + ")",
			"OS " + SystemInfo.getOsName() + " " + SystemInfo.getOsVersion() + " (" + SystemInfo.getOsArchitecture() + ")"
		);
        listScriptEngines(printer);
    }

	private static void listScriptEngines(InfoPrinter printer) {
    	printer.printLines("Installed JSR 223 Script Engines:");
        for (ScriptEngineFactory engine : new ScriptEngineManager().getEngineFactories()) {
			printer.printLines("- " + engine.getEngineName() + engine.getNames());
        }
	}

	public static void logConfig(String config) {
		CONFIG_LOGGER.info(config);
	}

}