135 lines
4.0 KiB
JavaScript
135 lines
4.0 KiB
JavaScript
import { Metadata } from './Metadata';
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import { SeriesMetadata } from './SeriesMetadata';
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export class StudyMetadata extends Metadata {
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constructor(data) {
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super(data);
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this._studyInstanceUID = null;
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this._series = []; // SeriesMetadata[]
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}
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/**
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* Returns the StudyInstanceUID of the current study.
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*/
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getStudyInstanceUID() {
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return this._studyInstanceUID;
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}
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/**
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* Append a series to the current study.
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* @param {SeriesMetadata} series The series to be added to the current study.
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* @returns {boolean} Returns true on success, false otherwise.
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*/
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addSeries(series) {
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let result = false;
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if (series instanceof SeriesMetadata && this.getSeriesByUID(series.getSeriesInstanceUID()) === void 0) {
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this._series.push(series);
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result = true;
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}
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return result;
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}
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/**
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* Find a series by index.
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* @param {number} index An integer representing a list index.
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* @returns {SeriesMetadata} Returns a SeriesMetadata instance when found or undefined otherwise.
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*/
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getSeriesByIndex(index) {
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let found; // undefined by default...
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if (Metadata.isValidIndex(index)) {
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found = this._series[index];
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}
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return found;
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}
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/**
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* Find a series by SeriesInstanceUID.
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* @param {string} uid An UID string.
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* @returns {SeriesMetadata} Returns a SeriesMetadata instance when found or undefined otherwise.
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*/
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getSeriesByUID(uid) {
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let found; // undefined by default...
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if (Metadata.isValidUID(uid)) {
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found = this._series.find(series => {
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return series.getSeriesInstanceUID() === uid;
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});
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}
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return found;
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}
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/**
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* Retrieve the number of series within the current study.
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* @returns {number} The number of series in the current study.
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*/
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getSeriesCount() {
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return this._series.length;
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}
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/**
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* Retrieve the number of instances within the current study.
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* @returns {number} The number of instances in the current study.
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*/
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getInstanceCount() {
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return this._series.reduce((sum, series) => {
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return sum + series.getInstanceCount();
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}, 0);
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}
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/**
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* Invokes the supplied callback for each series in the current study passing
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* two arguments: series (a SeriesMetadata instance) and index (the integer
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* index of the series within the current study)
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* @param {function} callback The callback function which will be invoked for each series instance.
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* @returns {undefined} Nothing is returned.
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*/
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forEachSeries(callback) {
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if (Metadata.isValidCallback(callback)) {
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this._series.forEach((series, index) => {
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callback.call(null, series, index);
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});
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}
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}
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/**
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* Find the index of a series inside the study.
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* @param {SeriesMetadata} series An instance of the SeriesMetadata class.
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* @returns {number} The index of the series inside the study or -1 if not found.
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*/
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indexOfSeries(series) {
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return this._series.indexOf(series);
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}
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/**
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* Compares the current study instance with another one.
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* @param {StudyMetadata} study An instance of the StudyMetadata class.
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* @returns {boolean} Returns true if both instances refer to the same study.
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*/
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equals(study) {
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const self = this;
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return (
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study === self ||
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(
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study instanceof StudyMetadata &&
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study.getStudyInstanceUID() === self.getStudyInstanceUID()
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)
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);
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}
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/**
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* Get first instance of the first series
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* @return {InstanceMetadata} InstanceMetadata class object or undefined if it doenst exist
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*/
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getFirstInstance() {
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let firstInstance;
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const firstSeries = this.getSeriesByIndex(0);
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if (firstSeries) {
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firstInstance = firstSeries.getInstanceByIndex(0);
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}
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return firstInstance;
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}
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}
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