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/*
* MODIFIED by Johannes Fahrenkrug (http://springenwerk.com) to also read TIFF files
* Copyright 2007 ZXing authors
*
* 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 com.google.zxing.client.j2se;
import com.google.zxing.DecodeHintType;
import com.google.zxing.MonochromeBitmapSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.ReaderException;
import com.google.zxing.Result;
import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.ResultParser;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.URI;
import java.nio.charset.Charset;
import java.util.Hashtable;
import javax.media.jai.*;
import com.sun.media.jai.codec.*;
/**
* <p>This simple command line utility decodes files, directories of files, or URIs which are passed
* as arguments. By default it uses the normal decoding algorithms, but you can pass --try_harder to
* request that hint. The raw text of each barcode is printed, and when running against directories,
* summary statistics are also displayed.</p>
*
* @author Sean Owen
* @author dswitkin@google.com (Daniel Switkin)
*/
public final class CommandLineRunner {
private CommandLineRunner() {
}
public static void main(String[] args) throws Exception {
Hashtable<DecodeHintType, Object> hints = null;
boolean dumpResults = false;
for (String arg : args) {
if ("--try_harder".equals(arg)) {
hints = new Hashtable<DecodeHintType, Object>(3);
hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
} else if ("--dump_results".equals(arg)) {
dumpResults = true;
} else if (arg.startsWith("--")) {
System.out.println("Unknown command line option " + arg);
return;
}
}
for (String arg : args) {
if (!arg.startsWith("--")) {
decodeOneArgument(arg, hints, dumpResults);
}
}
}
private static void decodeOneArgument(String argument, Hashtable<DecodeHintType, Object> hints,
boolean dumpResults) throws Exception {
File inputFile = new File(argument);
if (inputFile.exists()) {
if (inputFile.isDirectory()) {
int successful = 0;
int total = 0;
for (File input : inputFile.listFiles()) {
String filename = input.getName().toLowerCase();
// Skip hidden files and text files (the latter is found in the blackbox tests).
if (filename.startsWith(".") || filename.endsWith(".txt")) {
continue;
}
Result result = decode(input.toURI(), hints);
if (result != null) {
successful++;
if (dumpResults) {
dumpResult(input, result);
}
}
total++;
}
System.out.println("\nDecoded " + successful + " files out of " + total +
" successfully (" + (successful * 100 / total) + "%)\n");
} else {
Result result = decode(inputFile.toURI(), hints);
if (dumpResults) {
dumpResult(inputFile, result);
}
}
} else {
decode(new URI(argument), hints);
}
}
private static void dumpResult(File input, Result result) throws IOException {
String name = input.getAbsolutePath();
int pos = name.lastIndexOf('.');
if (pos > 0) {
name = name.substring(0, pos);
}
File dump = new File(name + ".txt");
writeStringToFile(result.getText(), dump);
}
private static void writeStringToFile(String value, File file) throws IOException {
Writer out = new OutputStreamWriter(new FileOutputStream(file), Charset.forName("UTF8"));
try {
out.write(value);
} finally {
out.close();
}
}
private static Result decode(URI uri, Hashtable<DecodeHintType, Object> hints) throws IOException {
BufferedImage image = null;
try {
//image = ImageIO.read(uri.toURL());
PlanarImage pi = JAI.create("URL", uri.toURL());
image = pi.getAsBufferedImage();
} catch (IllegalArgumentException iae) {
throw new FileNotFoundException("Resource not found: " + uri);
}
if (image == null) {
System.err.println(uri.toString() + ": Could not load image");
return null;
}
try {
MonochromeBitmapSource source = new BufferedImageMonochromeBitmapSource(image);
Result result = new MultiFormatReader().decode(source, hints);
ParsedResult parsedResult = ResultParser.parseResult(result);
System.out.println(uri.toString() + " (format: " + result.getBarcodeFormat() +
", type: " + parsedResult.getType() + "):\nRaw result:\n" + result.getText() +
"\nParsed result:\n" + parsedResult.getDisplayResult());
return result;
} catch (ReaderException e) {
System.out.println(uri.toString() + ": No barcode found");
return null;
}
}
}
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