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.common;
040
041import java.io.File;
042import java.util.List;
043
044import javax.xml.parsers.SAXParser;
045import javax.xml.parsers.SAXParserFactory;
046
047import org.dcm4che3.data.Tag;
048import org.dcm4che3.data.UID;
049import org.dcm4che3.data.Attributes;
050import org.dcm4che3.io.ContentHandlerAdapter;
051import org.dcm4che3.io.DicomInputStream;
052import org.dcm4che3.io.DicomInputStream.IncludeBulkData;
053import org.dcm4che3.util.SafeClose;
054
055/**
056 * @author Gunter Zeilinger <gunterze@gmail.com>
057 *
058 */
059public abstract class DicomFiles {
060
061    private static SAXParser saxParser;
062
063    public interface Callback {
064        boolean dicomFile(File f, Attributes fmi, long dsPos, Attributes ds)
065                throws Exception;
066    }
067
068    public static void scan(List<String> fnames, Callback scb) {
069        scan(fnames, true, scb); //default printout = true
070    }
071    
072    public static void scan(List<String> fnames, boolean printout, Callback scb) {
073        for (String fname : fnames)
074            scan(new File(fname), printout, scb);
075    }
076    
077    private static void scan(File f, boolean printout, Callback scb) {
078        if (f.isDirectory()) {
079            for (String s : f.list())
080                scan(new File(f, s), printout, scb);
081            return;
082        }
083        if (f.getName().endsWith(".xml")) {
084            try {
085                SAXParser p = saxParser;
086                if (p == null)
087                    saxParser = p = SAXParserFactory.newInstance().newSAXParser();
088                Attributes ds = new Attributes();
089                ContentHandlerAdapter ch = new ContentHandlerAdapter(ds);
090                p.parse(f, ch);
091                Attributes fmi = ch.getFileMetaInformation();
092                if (fmi == null)
093                    fmi = ds.createFileMetaInformation(UID.ExplicitVRLittleEndian);
094                boolean b = scb.dicomFile(f, fmi, -1, ds);
095                if (printout)System.out.print(b ? '.' : 'I');
096            } catch (Exception e) {
097                System.out.println();
098                System.out.println("Failed to parse file " + f + ": " + e.getMessage());
099                e.printStackTrace(System.out);
100            }
101        } else {
102            DicomInputStream in = null;
103            try {
104                in = new DicomInputStream(f);
105                in.setIncludeBulkData(IncludeBulkData.NO);
106                Attributes fmi = in.readFileMetaInformation();
107                long dsPos = in.getPosition();
108                Attributes ds = in.readDataset(-1, Tag.PixelData);
109                if (fmi == null || !fmi.containsValue(Tag.TransferSyntaxUID)
110                        || !fmi.containsValue(Tag.MediaStorageSOPClassUID)
111                        || !fmi.containsValue(Tag.MediaStorageSOPInstanceUID))
112                    fmi = ds.createFileMetaInformation(in.getTransferSyntax());
113                boolean b = scb.dicomFile(f, fmi, dsPos, ds);
114                if (printout)System.out.print(b ? '.' : 'I');
115            } catch (Exception e) {
116                System.out.println();
117                System.out.println("Failed to scan file " + f + ": " + e.getMessage());
118                e.printStackTrace(System.out);
119            } finally {
120                SafeClose.close(in);
121            }
122        }
123    }
124}