Java tutorial
/* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is part of dcm4che, an implementation of DICOM(TM) in * Java(TM), hosted at https://github.com/gunterze/dcm4che. * * The Initial Developer of the Original Code is * Agfa Healthcare. * Portions created by the Initial Developer are Copyright (C) 2011 * the Initial Developer. All Rights Reserved. * * Contributor(s): * See @authors listed below * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ package org.dcm4che3.tool.dcm2json; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.ResourceBundle; import javax.json.Json; import javax.json.stream.JsonGenerator; import javax.xml.transform.TransformerConfigurationException; import org.apache.commons.cli.CommandLine; 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.dcm4che3.data.Attributes; import org.dcm4che3.io.BulkDataDescriptor; import org.dcm4che3.io.DicomInputStream; import org.dcm4che3.io.DicomInputStream.IncludeBulkData; import org.dcm4che3.json.JSONReader; import org.dcm4che3.json.JSONWriter; import org.dcm4che3.tool.common.CLIUtils; import org.dcm4che3.util.SafeClose; /** * Tool to convert DICOM to JSON representation. * * @author Gunter Zeilinger <gunterze@gmail.com> */ public class Dcm2Json { private static ResourceBundle rb = ResourceBundle.getBundle("org.dcm4che3.tool.dcm2json.messages"); private boolean indent = false; private IncludeBulkData includeBulkData = IncludeBulkData.URI; private boolean catBlkFiles = false; private String blkFilePrefix = "blk"; private String blkFileSuffix; private File blkDirectory; private Attributes blkAttrs; public final void setIndent(boolean indent) { this.indent = indent; } public final void setIncludeBulkData(IncludeBulkData includeBulkData) { this.includeBulkData = includeBulkData; } public final void setConcatenateBulkDataFiles(boolean catBlkFiles) { this.catBlkFiles = catBlkFiles; } public final void setBulkDataFilePrefix(String blkFilePrefix) { this.blkFilePrefix = blkFilePrefix; } public final void setBulkDataFileSuffix(String blkFileSuffix) { this.blkFileSuffix = blkFileSuffix; } public final void setBulkDataDirectory(File blkDirectory) { this.blkDirectory = blkDirectory; } public final void setBulkDataAttributes(Attributes blkAttrs) { this.blkAttrs = blkAttrs; } private static CommandLine parseComandLine(String[] args) throws ParseException { Options opts = new Options(); CLIUtils.addCommonOptions(opts); opts.addOption("I", "indent", false, rb.getString("indent")); addBulkdataOptions(opts); return CLIUtils.parseComandLine(args, opts, rb, Dcm2Json.class); } @SuppressWarnings("static-access") private static void addBulkdataOptions(Options opts) { OptionGroup group = new OptionGroup(); group.addOption( OptionBuilder.withLongOpt("no-bulkdata").withDescription(rb.getString("no-bulkdata")).create("B")); group.addOption(OptionBuilder.withLongOpt("with-bulkdata").withDescription(rb.getString("with-bulkdata")) .create("b")); opts.addOptionGroup(group); opts.addOption(OptionBuilder.withLongOpt("blk-file-dir").hasArg().withArgName("directory") .withDescription(rb.getString("blk-file-dir")).create("d")); opts.addOption(OptionBuilder.withLongOpt("blk-file-prefix").hasArg().withArgName("prefix") .withDescription(rb.getString("blk-file-prefix")).create()); opts.addOption(OptionBuilder.withLongOpt("blk-file-suffix").hasArg().withArgName("suffix") .withDescription(rb.getString("blk-file-dir")).create()); opts.addOption("c", "cat-blk-files", false, rb.getString("cat-blk-files")); opts.addOption(OptionBuilder.withLongOpt("blk-spec").hasArg().withArgName("json-file") .withDescription(rb.getString("blk-spec")).create("J")); } @SuppressWarnings("unchecked") public static void main(String[] args) { try { CommandLine cl = parseComandLine(args); Dcm2Json main = new Dcm2Json(); main.setIndent(cl.hasOption("I")); configureBulkdata(main, cl); String fname = fname(cl.getArgList()); if (fname.equals("-")) { main.convert(new DicomInputStream(System.in), System.out); } else { main.convert(new File(fname), System.out); } } catch (ParseException e) { System.err.println("dcm2xml: " + e.getMessage()); System.err.println(rb.getString("try")); System.exit(2); } catch (Exception e) { System.err.println("dcm2xml: " + e.getMessage()); e.printStackTrace(); System.exit(2); } } private static void configureBulkdata(Dcm2Json dcm2json, CommandLine cl) throws Exception { if (cl.hasOption("b")) { dcm2json.setIncludeBulkData(IncludeBulkData.YES); } if (cl.hasOption("B")) { dcm2json.setIncludeBulkData(IncludeBulkData.NO); } if (cl.hasOption("blk-file-prefix")) { dcm2json.setBulkDataFilePrefix(cl.getOptionValue("blk-file-prefix")); } if (cl.hasOption("blk-file-suffix")) { dcm2json.setBulkDataFileSuffix(cl.getOptionValue("blk-file-suffix")); } if (cl.hasOption("d")) { File tempDir = new File(cl.getOptionValue("d")); dcm2json.setBulkDataDirectory(tempDir); } dcm2json.setConcatenateBulkDataFiles(cl.hasOption("c")); if (cl.hasOption("J")) { dcm2json.setBulkDataAttributes(parseJSON(cl.getOptionValue("J"))); } } private static Attributes parseJSON(String fname) throws Exception { InputStream in = new FileInputStream(fname); try { JSONReader reader = new JSONReader(Json.createParser(new InputStreamReader(in, "UTF-8"))); return reader.readDataset(null); } finally { SafeClose.close(in); } } private static String fname(List<String> argList) throws ParseException { int numArgs = argList.size(); if (numArgs == 0) throw new ParseException(rb.getString("missing")); if (numArgs > 1) throw new ParseException(rb.getString("too-many")); return argList.get(0); } public void convert(DicomInputStream dis, OutputStream out) throws IOException { dis.setIncludeBulkData(includeBulkData); if (blkAttrs != null) dis.setBulkDataDescriptor(BulkDataDescriptor.valueOf(blkAttrs)); dis.setBulkDataDirectory(blkDirectory); dis.setBulkDataFilePrefix(blkFilePrefix); dis.setBulkDataFileSuffix(blkFileSuffix); dis.setConcatenateBulkDataFiles(catBlkFiles); JsonGenerator jsonGen = createGenerator(out); JSONWriter jsonWriter = new JSONWriter(jsonGen); dis.setDicomInputHandler(jsonWriter); dis.readDataset(-1, -1); jsonGen.flush(); } public void convert(File dicomFile, OutputStream out) throws IOException, TransformerConfigurationException { DicomInputStream dis = new DicomInputStream(dicomFile); try { convert(dis, out); } finally { dis.close(); } } public void convert(File dicomFile, File jsonFile) throws IOException, TransformerConfigurationException { OutputStream out = new BufferedOutputStream(new FileOutputStream(jsonFile)); try { convert(dicomFile, out); } finally { out.close(); } } private JsonGenerator createGenerator(OutputStream out) { Map<String, ?> conf = new HashMap<String, Object>(2); if (indent) conf.put(JsonGenerator.PRETTY_PRINTING, null); return Json.createGeneratorFactory(conf).createGenerator(out); } }