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An easy to use Application Programming Interface (API) for working with MARC and MARCXML in
Java.
/**
* Copyright (C) 2005 Bas Peters
*
* This file is part of MARC4J
*
* MARC4J is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* MARC4J is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with MARC4J; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.marc4j.util;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.marc4j.Constants;
import org.marc4j.MarcStreamReader;
import org.marc4j.MarcXmlWriter;
import org.marc4j.converter.CharConverter;
import info.freelibrary.marc4j.converter.impl.AnselToUnicode;
import info.freelibrary.marc4j.converter.impl.Iso5426ToUnicode;
import info.freelibrary.marc4j.converter.impl.Iso6937ToUnicode;
import org.marc4j.marc.Record;
/**
* Provides a basic driver to convert MARC records to MARCXML. Output is encoded in UTF-8.
*
* The following example reads input.mrc and writes output to the console:
*
*
* java org.marc4j.util.MarcXmlDriver input.mrc
*
*
* The following example reads input.mrc, converts MARC-8 and writes output in UTF-8 to output.xml:
*
*
* java org.marc4j.util.MarcXmlDriver -convert MARC8 -out output.xml input.mrc
*
*
* It is possible to post-process the result using an XSLT stylesheet. The following example converts MARC to MODS:
*
*
* java org.marc4j.util.MarcXmlDriver -convert MARC8 \
* -xsl http://www.loc.gov/standards/mods/v3/MARC21slim2MODS3.xsl \
* -out modsoutput.xml input.mrc
*
*
* For usage, run from the command-line with the following command:
*
*
* java org.marc4j.util.MarcXmlDriver -usage
*
*
* Check the home page for MARCXML for more information about the
* MARCXML format.
*
* @author Bas Peters
*/
public class MarcXmlDriver {
/**
* Provides a static entry point.
*
* Arguments:
*
*
* - -xsl <stylesheet URL> - post-process using XSLT-stylesheet
* - -out <output file> - write to output file
* - -convert <encoding> - convert <encoding> to UTF-8
* (Supported encodings: MARC8, ISO5426, ISO6937)
* - -encode <encoding> - read data using encoding <encoding>
* - -normalize - perform Unicode normalization
* - -usage - show usage
* - <input file> - input file with MARC records
*
*/
public static void main(final String args[]) {
final long start = System.currentTimeMillis();
String input = null;
String output = null;
String stylesheet = null;
String convert = null;
String encoding = "ISO_8859_1";
boolean normalize = false;
for (int i = 0; i < args.length; i++) {
if (args[i].equals("-xsl")) {
if (i == args.length - 1) {
usage();
}
stylesheet = args[++i].trim();
} else if (args[i].equals("-out")) {
if (i == args.length - 1) {
usage();
}
output = args[++i].trim();
} else if (args[i].equals("-convert")) {
if (i == args.length - 1) {
usage();
}
convert = args[++i].trim();
} else if (args[i].equals("-encoding")) {
if (i == args.length - 1) {
usage();
}
encoding = args[++i].trim();
} else if (args[i].equals("-normalize")) {
normalize = true;
} else if (args[i].equals("-usage")) {
usage();
} else if (args[i].equals("-help")) {
usage();
} else {
input = args[i].trim();
// Must be last arg
if (i != args.length - 1) {
usage();
}
}
}
if (input == null) {
usage();
}
InputStream in = null;
try {
in = new FileInputStream(input);
} catch (final FileNotFoundException e) {
e.printStackTrace();
}
MarcStreamReader reader = null;
if (encoding != null) {
reader = new MarcStreamReader(in, encoding);
} else {
reader = new MarcStreamReader(in);
}
OutputStream out = null;
if (output != null) {
try {
out = new FileOutputStream(output);
} catch (final FileNotFoundException e) {
e.printStackTrace();
}
} else {
out = System.out;
}
MarcXmlWriter writer = null;
if (stylesheet == null) {
if (convert != null) {
writer = new MarcXmlWriter(out, "UTF8");
} else {
writer = new MarcXmlWriter(out, "UTF8");
}
} else {
Writer outputWriter = null;
if (convert != null) {
try {
outputWriter = new OutputStreamWriter(out, "UTF8");
} catch (final UnsupportedEncodingException e) {
e.printStackTrace();
}
outputWriter = new BufferedWriter(outputWriter);
} else {
outputWriter = new OutputStreamWriter(out);
outputWriter = new BufferedWriter(outputWriter);
}
final Result result = new StreamResult(outputWriter);
final Source source = new StreamSource(stylesheet);
writer = new MarcXmlWriter(result, source);
}
writer.setIndent(true);
if (convert != null) {
CharConverter charconv = null;
if (Constants.MARC_8_ENCODING.equals(convert)) {
charconv = new AnselToUnicode();
} else if (Constants.ISO5426_ENCODING.equals(convert)) {
charconv = new Iso5426ToUnicode();
} else if (Constants.ISO6937_ENCODING.equals(convert)) {
charconv = new Iso6937ToUnicode();
} else {
System.err.println("Unknown character set");
System.exit(1);
}
writer.setConverter(charconv);
}
if (normalize) {
writer.setUnicodeNormalization(true);
}
while (reader.hasNext()) {
final Record record = reader.next();
if (Constants.MARC_8_ENCODING.equals(convert)) {
record.getLeader().setCharCodingScheme('a');
}
writer.write(record);
}
writer.close();
System.err.println("Total time: " + (System.currentTimeMillis() - start) + " miliseconds");
}
private static void usage() {
System.err.println("MARC4J, Copyright (C) 2002-2006 Bas Peters");
System.err.println("Usage: org.marc4j.util.MarcXmlDriver [-options] ");
System.err.println(" -convert = Converts to UTF-8");
System.err.println(" Valid encodings are: MARC8, ISO5426, ISO6937");
System.err.println(" -normalize = perform Unicode normalization");
System.err.println(" -xsl = Post-process MARCXML using XSLT stylesheet ");
System.err.println(" -out = Output using ");
System.err.println(" -usage or -help = this message");
System.err.println("The program outputs well-formed MARCXML");
System.err.println("See http://marc4j.tigris.org for more information.");
System.exit(1);
}
}
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