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) 2013 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.io; 040 041import java.util.List; 042 043import org.dcm4che3.data.Tag; 044import org.dcm4che3.data.Attributes; 045import org.dcm4che3.data.ItemPointer; 046import org.dcm4che3.data.VR; 047import org.dcm4che3.util.TagUtils; 048 049/** 050 * @author Gunter Zeilinger <gunterze@gmail.com> 051 * 052 */ 053public abstract class BulkDataDescriptor { 054 055 public final static BulkDataDescriptor DEFAULT = new BulkDataDescriptor() { 056 057 @Override 058 public boolean isBulkData(String privateCreator, int tag, VR vr, int length, 059 ItemPointer... itemPointer) { 060 switch (TagUtils.normalizeRepeatingGroup(tag)) { 061 case Tag.PixelDataProviderURL: 062 case Tag.AudioSampleData: 063 case Tag.CurveData: 064 case Tag.SpectroscopyData: 065 case Tag.OverlayData: 066 case Tag.EncapsulatedDocument: 067 case Tag.FloatPixelData: 068 case Tag.DoubleFloatPixelData: 069 case Tag.PixelData: 070 return itemPointer.length == 0; 071 case Tag.WaveformData: 072 return itemPointer.length == 1 073 && itemPointer[0].sequenceTag == Tag.WaveformSequence; 074 } 075 return false; 076 } 077 }; 078 079 public final static BulkDataDescriptor PIXELDATA = new BulkDataDescriptor() { 080 081 @Override 082 public boolean isBulkData(String privateCreator, int tag, VR vr, int length, 083 ItemPointer... itemPointer) { 084 return tag == Tag.PixelData; 085 } 086 }; 087 088 public static BulkDataDescriptor valueOf(final Attributes blkAttrs) { 089 return new BulkDataDescriptor() { 090 091 @Override 092 public boolean isBulkData(String privateCreator, int tag, VR vr, int length, 093 ItemPointer... itemPointer) { 094 Attributes item = blkAttrs; 095 for (ItemPointer ip : itemPointer) { 096 item = item.getNestedDataset( 097 ip.privateCreator, ip.sequenceTag, ip.itemIndex); 098 } 099 return item != null && item.contains(privateCreator, tag); 100 } 101 }; 102 } 103 104 public abstract boolean isBulkData(String privateCreator, int tag, VR vr, int length, 105 ItemPointer... itemPointer); 106 107}