001/* ***** BEGIN LICENSE BLOCK *****
002 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
003 *
004 * The contents of this file are subject to the Mozilla Public License Version
005 * 1.1 (the "License"); you may not use this file except in compliance with
006 * the License. You may obtain a copy of the License at
007 * http://www.mozilla.org/MPL/
008 *
009 * Software distributed under the License is distributed on an "AS IS" basis,
010 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
011 * for the specific language governing rights and limitations under the
012 * License.
013 *
014 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
015 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
016 *
017 * The Initial Developer of the Original Code is
018 * Agfa Healthcare.
019 * Portions created by the Initial Developer are Copyright (C) 2012
020 * the Initial Developer. All Rights Reserved.
021 *
022 * Contributor(s):
023 * See @authors listed below
024 *
025 * Alternatively, the contents of this file may be used under the terms of
026 * either the GNU General Public License Version 2 or later (the "GPL"), or
027 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
028 * in which case the provisions of the GPL or the LGPL are applicable instead
029 * of those above. If you wish to allow use of your version of this file only
030 * under the terms of either the GPL or the LGPL, and not to allow others to
031 * use your version of this file under the terms of the MPL, indicate your
032 * decision by deleting the provisions above and replace them with the notice
033 * and other provisions required by the GPL or the LGPL. If you do not delete
034 * the provisions above, a recipient may use your version of this file under
035 * the terms of any one of the MPL, the GPL or the LGPL.
036 *
037 * ***** END LICENSE BLOCK ***** */
038
039package org.dcm4che3.tool.hl72xml;
040
041import java.io.ByteArrayInputStream;
042import java.io.File;
043import java.io.FileInputStream;
044import java.io.IOException;
045import java.io.InputStream;
046import java.io.InputStreamReader;
047import java.io.Reader;
048import java.io.SequenceInputStream;
049import java.net.URL;
050import java.util.List;
051import java.util.ResourceBundle;
052
053import javax.xml.transform.OutputKeys;
054import javax.xml.transform.TransformerConfigurationException;
055import javax.xml.transform.TransformerFactory;
056import javax.xml.transform.sax.SAXTransformerFactory;
057import javax.xml.transform.sax.TransformerHandler;
058import javax.xml.transform.stream.StreamResult;
059import javax.xml.transform.stream.StreamSource;
060
061import org.apache.commons.cli.CommandLine;
062import org.apache.commons.cli.OptionBuilder;
063import org.apache.commons.cli.Options;
064import org.apache.commons.cli.ParseException;
065import org.dcm4che3.hl7.HL7Charset;
066import org.dcm4che3.hl7.HL7Parser;
067import org.dcm4che3.hl7.HL7Segment;
068import org.dcm4che3.tool.common.CLIUtils;
069import org.xml.sax.SAXException;
070
071/**
072 * @author Gunter Zeilinger <gunterze@gmail.com>
073 *
074 */
075public class HL72Xml {
076
077    private static ResourceBundle rb =
078            ResourceBundle.getBundle("org.dcm4che3.tool.hl72xml.messages");
079
080        private URL xslt;
081        private boolean indent = false;
082        private boolean includeNamespaceDeclaration = false;
083        private String charset;
084
085        public final void setXSLT(URL xslt) {
086            this.xslt = xslt;
087        }
088
089        public final void setIndent(boolean indent) {
090            this.indent = indent;
091        }
092
093        public final void setIncludeNamespaceDeclaration(boolean includeNamespaceDeclaration) {
094            this.includeNamespaceDeclaration = includeNamespaceDeclaration;
095        }
096
097        public String getCharacterSet() {
098            return charset;
099        }
100
101        public void setCharacterSet(String charset) {
102            this.charset = charset;
103        }
104
105        @SuppressWarnings("static-access")
106        private static CommandLine parseComandLine(String[] args)
107                throws ParseException {
108            Options opts = new Options();
109            CLIUtils.addCommonOptions(opts);
110            opts.addOption(OptionBuilder
111                    .withLongOpt("xsl")
112                    .hasArg()
113                    .withArgName("xsl-file")
114                    .withDescription(rb.getString("xsl"))
115                    .create("x"));
116            opts.addOption(OptionBuilder
117                    .withLongOpt("charset")
118                    .hasArg()
119                    .withArgName("name")
120                    .withDescription(rb.getString("charset"))
121                    .create(null));
122            opts.addOption("I", "indent", false, rb.getString("indent"));
123            opts.addOption(null, "xmlns", false, rb.getString("xmlns"));
124
125            return CLIUtils.parseComandLine(args, opts, rb, HL72Xml.class);
126        }
127
128        @SuppressWarnings("unchecked")
129        public static void main(String[] args) {
130            try {
131                CommandLine cl = parseComandLine(args);
132                HL72Xml main = new HL72Xml();
133                if (cl.hasOption("x")) {
134                    String s = cl.getOptionValue("x");
135                    main.setXSLT(new File(s).toURI().toURL());
136                }
137                main.setCharacterSet(cl.getOptionValue("charset"));
138                main.setIndent(cl.hasOption("I"));
139                main.setIncludeNamespaceDeclaration(cl.hasOption("xmlns"));
140                String fname = fname(cl.getArgList());
141                if (fname.equals("-")) {
142                    main.parse(System.in);
143                } else {
144                    FileInputStream dis = new FileInputStream(fname);
145                    try {
146                        main.parse(dis);
147                    } finally {
148                        dis.close();
149                    }
150                }
151            } catch (ParseException e) {
152                System.err.println("hl72xml: " + e.getMessage());
153                System.err.println(rb.getString("try"));
154                System.exit(2);
155            } catch (Exception e) {
156                System.err.println("hl72xml: " + e.getMessage());
157                e.printStackTrace();
158                System.exit(2);
159            }
160        }
161
162        private static String fname(List<String> argList) throws ParseException {
163            int numArgs = argList.size();
164            if (numArgs == 0)
165                throw new ParseException(rb.getString("missing"));
166            if (numArgs > 1)
167                throw new ParseException(rb.getString("too-many"));
168            return argList.get(0);
169        }
170
171        public void parse(InputStream is) throws IOException,
172                TransformerConfigurationException, SAXException {
173            byte[] buf = new byte[256];
174            int len = is.read(buf);
175            HL7Segment msh = HL7Segment.parseMSH(buf, buf.length);
176            String charsetName = HL7Charset.toCharsetName(msh.getField(17, charset));
177            Reader reader = new InputStreamReader(
178                    new SequenceInputStream(
179                            new ByteArrayInputStream(buf, 0, len), is),
180                    charsetName);
181            TransformerHandler th = getTransformerHandler();
182            th.getTransformer().setOutputProperty(OutputKeys.INDENT, 
183                    indent ? "yes" : "no");
184            th.setResult(new StreamResult(System.out));
185            HL7Parser hl7Parser = new HL7Parser(th);
186            hl7Parser.setIncludeNamespaceDeclaration(includeNamespaceDeclaration);
187            hl7Parser.parse(reader);
188        }
189
190        private TransformerHandler getTransformerHandler()
191                throws TransformerConfigurationException, IOException {
192            SAXTransformerFactory tf = (SAXTransformerFactory)
193                    TransformerFactory.newInstance();
194            if (xslt == null)
195                return tf.newTransformerHandler();
196
197            TransformerHandler th = tf.newTransformerHandler(
198                    new StreamSource(xslt.openStream(), xslt.toExternalForm()));
199            return th;
200        }
201
202}