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Barcode4J is a flexible generator for barcodes written in Java inclusive
extensions to support Apache FOP 0.20.5.
The newest version!
/*
* Copyright 2002-2004 Jeremias Maerki.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.krysalis.barcode4j.cli;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.Set;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import org.krysalis.barcode4j.BarcodeException;
import org.krysalis.barcode4j.BarcodeGenerator;
import org.krysalis.barcode4j.BarcodeUtil;
import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider;
import org.krysalis.barcode4j.output.bitmap.BitmapEncoderRegistry;
import org.krysalis.barcode4j.output.eps.EPSCanvasProvider;
import org.krysalis.barcode4j.output.svg.SVGCanvasProvider;
import org.krysalis.barcode4j.tools.MimeTypes;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.configuration.DefaultConfiguration;
import org.apache.avalon.framework.configuration.DefaultConfigurationBuilder;
import org.apache.avalon.framework.logger.Logger;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.MissingOptionException;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.OptionGroup;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
/**
* Command-line interface.
*
* @author Jeremias Maerki
* @version $Id: Main.java,v 1.6 2007/01/06 19:56:55 jmaerki Exp $
*/
public class Main {
private static final String[] APP_HEADER = {
"Barcode4J command-line application, Version " + getVersion(),
""};
/** stdout for this application (default: System.out) */
public static PrintStream stdout = System.out;
/** stderr for this application (default: System.err) */
public static PrintStream stderr = System.err;
private static ExitHandler exitHandler = new DefaultExitHandler();
private Options options;
private boolean headerPrinted = false;
private Logger log;
/**
* Main method.
* @param args commandline arguments
*/
public static void main(String[] args) {
Main app = new Main();
app.handleCommandLine(args);
}
/**
* Set an alternative exit handler here.
* @param handler the alternative exit handler
*/
public static void setExitHandler(ExitHandler handler) {
exitHandler = handler;
}
/**
* Handles the command line. The method calls the exit handler upon
* completion.
* @param args the command line arguments
*/
public void handleCommandLine(String[] args) {
CommandLine cl;
String[] msg;
try {
CommandLineParser clp = new PosixParser();
cl = clp.parse(getOptions(), args);
//Message
msg = cl.getArgs();
if (msg.length == 0) {
throw new ParseException("No message");
}
if (msg.length > 1) {
throw new ParseException("Too many parameters: " + msg.length);
}
} catch (MissingOptionException moe) {
printHelp(new PrintWriter(stdout));
exitHandler.failureExit(this,
"Bad command line. Missing option: " + moe.getMessage(), null, -2);
return; //never reached
} catch (ParseException pe) {
printHelp(new PrintWriter(stdout));
//pe.printStackTrace();
exitHandler.failureExit(this,
"Bad command line: " + pe.getMessage(), null, -2);
return; //never reached
}
try {
OutputStream out;
if (!cl.hasOption("o")) {
log = new AdvancedConsoleLogger(AdvancedConsoleLogger.LEVEL_ERROR,
false, stderr, stderr);
printAppHeader();
out = stdout;
} else {
int logLevel = AdvancedConsoleLogger.LEVEL_INFO;
if (cl.hasOption('v')) {
logLevel = AdvancedConsoleLogger.LEVEL_DEBUG;
}
log = new AdvancedConsoleLogger(logLevel, false, stdout, stderr);
printAppHeader();
File outFile = new File(cl.getOptionValue("o"));
if (log.isDebugEnabled()) {
log.debug("Output to: " + outFile.getCanonicalPath());
}
out = new java.io.FileOutputStream(outFile);
}
log.debug("Message: " + msg[0]);
//Output format
String format = MimeTypes.expandFormat(
cl.getOptionValue("f", MimeTypes.MIME_SVG));
int orientation = 0;
log.info("Generating " + format + "...");
BarcodeUtil util = BarcodeUtil.getInstance();
BarcodeGenerator gen = util.createBarcodeGenerator(
getConfiguration(cl));
if (MimeTypes.MIME_SVG.equals(format)) {
//Create Barcode and render it to SVG
SVGCanvasProvider svg = new SVGCanvasProvider(false, orientation);
gen.generateBarcode(svg, msg[0]);
//Serialize SVG barcode
try {
TransformerFactory factory = TransformerFactory.newInstance();
Transformer trans = factory.newTransformer();
Source src = new javax.xml.transform.dom.DOMSource(
svg.getDOMFragment());
Result res = new javax.xml.transform.stream.StreamResult(out);
trans.transform(src, res);
} catch (TransformerException te) {
exitHandler.failureExit(this, "XML/XSLT library error", te, -6);
}
} else if (MimeTypes.MIME_EPS.equals(format)) {
EPSCanvasProvider eps = new EPSCanvasProvider(out, orientation);
gen.generateBarcode(eps, msg[0]);
eps.finish();
} else {
int dpi = Integer.parseInt(cl.getOptionValue('d', "300"));
log.debug("Resolution: " + dpi + "dpi");
BitmapCanvasProvider bitmap;
if (cl.hasOption("bw")) {
log.debug("Black/white image (1-bit)");
bitmap = new BitmapCanvasProvider(out,
format, dpi, BufferedImage.TYPE_BYTE_BINARY, false, orientation);
} else {
log.debug("Grayscale image (8-bit) with anti-aliasing");
bitmap = new BitmapCanvasProvider(out,
format, dpi, BufferedImage.TYPE_BYTE_GRAY, true, orientation);
}
gen.generateBarcode(bitmap, msg[0]);
bitmap.finish();
}
out.close();
log.info("done.");
exitHandler.successfulExit(this);
} catch (IOException ioe) {
exitHandler.failureExit(this,
"Error writing output file: " + ioe.getMessage(), null, -5);
} catch (ConfigurationException ce) {
exitHandler.failureExit(this,
"Configuration problem: " + ce.getMessage(), ce, -6);
} catch (BarcodeException be) {
exitHandler.failureExit(this,
"Error generating the barcode", be, -3);
}
}
private Options getOptions() {
if (options == null) {
this.options = new Options();
Option opt;
this.options.addOption(OptionBuilder
.withLongOpt("verbose")
.withDescription("enable debug output")
.create('v'));
//Group: file/stdout
this.options.addOption(OptionBuilder
.withLongOpt("output")
.withArgName("file")
.hasArg()
.withDescription("the output filename")
.create('o'));
//Group: config file/barcode type
OptionGroup group = new OptionGroup();
group.setRequired(true);
group.addOption(OptionBuilder
.withArgName("file")
.withLongOpt("config")
.hasArg()
.withDescription("the config file")
.create('c'));
group.addOption(OptionBuilder
.withArgName("name")
.withLongOpt("symbol")
.hasArg()
.withDescription("the barcode symbology to select "
+ "(default settings, use -c if you want to customize)")
.create('s'));
this.options.addOptionGroup(group);
//Output format type
this.options.addOption(OptionBuilder
.withArgName("format")
.withLongOpt("format")
.hasArg()
.withDescription("the output format: MIME type or file "
+ "extension\n"
+ "Default: " + MimeTypes.MIME_SVG + " (SVG)")
.create('f'));
//Bitmap-specific options
this.options.addOption(OptionBuilder
.withArgName("integer")
.withLongOpt("dpi")
.hasArg()
.withDescription("(for bitmaps) the image resolution in dpi\n"
+ "Default: 300")
.create('d'));
this.options.addOption(OptionBuilder
.withLongOpt("bw")
.withDescription("(for bitmaps) create monochrome (1-bit) "
+ "image instead of grayscale (8-bit)")
.create());
}
return this.options;
}
private Configuration getConfiguration(CommandLine cl) {
if (cl.hasOption("s")) {
String sym = cl.getOptionValue("s");
DefaultConfiguration cfg = new DefaultConfiguration("cfg");
DefaultConfiguration child = new DefaultConfiguration(sym);
cfg.addChild(child);
return cfg;
}
if (cl.hasOption("c")) {
try {
String filename = cl.getOptionValue("c");
File cfgFile = new File(filename);
if (!cfgFile.exists() || !cfgFile.isFile()) {
throw new FileNotFoundException(
"Config file not found: " + cfgFile);
}
log.info("Using configuration: " + cfgFile);
DefaultConfigurationBuilder builder = new DefaultConfigurationBuilder();
return builder.buildFromFile(cfgFile);
} catch (Exception e) {
exitHandler.failureExit(this,
"Error reading configuration file: " + e.getMessage(), null, -3);
}
}
return new DefaultConfiguration("cfg");
}
/** @return the Barcode4J version */
public static String getVersion() {
String version = null;
Package jarinfo = Main.class.getPackage();
if (jarinfo != null) {
version = jarinfo.getImplementationVersion();
}
if (version == null) {
//Fallback if Barcode4J is used in a development environment
version = "DEV";
}
return version;
}
/**
* Prints the application header on the console. Ensures that this is only
* done once.
*/
public void printAppHeader() {
if (!headerPrinted) {
if (log != null) {
for (int i = 0; i < APP_HEADER.length; i++) {
log.info(APP_HEADER[i]);
}
} else {
for (int i = 0; i < APP_HEADER.length; i++) {
stdout.println(APP_HEADER[i]);
}
}
headerPrinted = true;
}
}
private void printHelp(PrintWriter writer) {
printAppHeader();
//Get a list of additional supported MIME types
Set knownMimes = new java.util.HashSet();
knownMimes.add(null);
knownMimes.add("");
knownMimes.add(MimeTypes.MIME_PNG);
knownMimes.add("image/png");
knownMimes.add(MimeTypes.MIME_JPEG);
knownMimes.add(MimeTypes.MIME_TIFF);
knownMimes.add(MimeTypes.MIME_GIF);
Set additionalMimes = BitmapEncoderRegistry.getSupportedMIMETypes();
additionalMimes.removeAll(knownMimes);
HelpFormatter help = new HelpFormatter();
final String unavailable = " (unavailable)";
help.printHelp(writer, HelpFormatter.DEFAULT_WIDTH,
"java -jar barcode4j.jar "
+ "[-v] [[-s ]|[-c ]] [-f ] "
+ "[-d ] [-bw] [-o ] ",
null,
getOptions(),
HelpFormatter.DEFAULT_LEFT_PAD, HelpFormatter.DEFAULT_DESC_PAD,
"Valid output formats:"
+ "\nSVG: " + MimeTypes.MIME_SVG + ", svg"
+ "\nEPS: " + MimeTypes.MIME_EPS + ", eps"
+ "\nPNG: " + MimeTypes.MIME_PNG + ", png"
+ (BitmapEncoderRegistry.supports(MimeTypes.MIME_PNG)
? "" : unavailable)
+ "\nTIFF: " + MimeTypes.MIME_TIFF + ", tiff, tif"
+ (BitmapEncoderRegistry.supports(MimeTypes.MIME_TIFF)
? "" : unavailable)
+ "\nJPEG: " + MimeTypes.MIME_JPEG + ", jpeg, jpg"
+ (BitmapEncoderRegistry.supports(MimeTypes.MIME_JPEG)
? "" : unavailable)
+ "\nGIF: " + MimeTypes.MIME_GIF + ", gif"
+ (BitmapEncoderRegistry.supports(MimeTypes.MIME_GIF)
? "" : unavailable)
+ (additionalMimes.size() > 0
? "\nAdditional supported formats:\n" + additionalMimes
: "")
+ "\n"
+ "\nIf -o is omitted the output is written to stdout.");
writer.flush();
}
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