loci.formats.dicom

Class DicomJSONProvider

java.lang.Object

loci.formats.dicom.DicomJSONProvider

All Implemented Interfaces:

ITagProvider

public class DicomJSONProvider
extends java.lang.Object
implements ITagProvider

Provide DICOM tags from a file containing JSON. Formal JSON schema yet to be determined, but the idea is to accept a hierarchy of tags of the form: { "BodyPartExamined": { "Value": "BRAIN", "VR": "CS", "Tag": "(0018,0015)" } "ContributingEquipmentSequence": { "VR": "SQ", "Tag": "(0018,a001)", "Sequence": { "Manufacturer": { "Value": "PixelMed", "VR": "LO", "Tag": "(0008,0070)" }, "ContributionDateTime": { "Value": "20210710234601.105+0000", "VR": "DT", "Tag": "(0018,a002)" } } } } This is similar to JSON examples in https://github.com/QIICR/dcmqi/tree/master/doc/examples, but allows for the VR (type) and tag to be explicitly stated, in addition to the more human-readable description.

Field Summary

Fields

Modifier and Type	Field and Description
private static org.slf4j.Logger	LOGGER
private java.util.List<DicomTag>	tags

Constructor Summary

Constructors

Constructor and Description
DicomJSONProvider()

Method Summary

Modifier and Type	Method and Description
java.util.List<DicomTag>	getTags() Retrieve the tags defined by this provider.
private java.lang.Integer	lookupTag(java.lang.String tagKey, org.json.JSONObject tag) Get the tag code corresponding to the given JSON object.
private DicomVR	lookupVR(java.lang.Integer intTagCode, org.json.JSONObject tag) Get the VR associated with the given tag code and JSON object.
private void	readSequence(org.json.JSONObject rootTag, DicomTag parent)
void	readTagSource(java.lang.String location) Read tags from the given location.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

tags

private java.util.List<DicomTag> tags

Constructor Detail

DicomJSONProvider

public DicomJSONProvider()

Method Detail

readTagSource

public void readTagSource(java.lang.String location)
                   throws java.io.IOException

Description copied from interface: ITagProvider

Read tags from the given location. The interpretation of 'location' is implementation-dependent. This method must be called before retrieving tags.

Specified by:

readTagSource in interface ITagProvider

Throws:

java.io.IOException

getTags

public java.util.List<DicomTag> getTags()

Description copied from interface: ITagProvider

Retrieve the tags defined by this provider.

Specified by:

getTags in interface ITagProvider

readSequence

private void readSequence(org.json.JSONObject rootTag,
                          DicomTag parent)

lookupTag

private java.lang.Integer lookupTag(java.lang.String tagKey,
                                    org.json.JSONObject tag)

Get the tag code corresponding to the given JSON object. If "Tag" is not a defined attribute, lookup the default for the object name in the dictionary.

lookupVR

private DicomVR lookupVR(java.lang.Integer intTagCode,
                         org.json.JSONObject tag)

Get the VR associated with the given tag code and JSON object. If "VR" is not a defined attribute, lookup the default for the given tag code in the dictionary.