public static MusicXMLDocument read(Document doc) throws InvalidMusicXML { Element e = root(doc); String n = e.getNodeName(); if (n.equals(MxlScorePartwise.ELEM_NAME)) return new MusicXMLDocument(MxlScorePartwise.read(e)); else if (n.equals("score-timewise")) throw new IllegalArgumentException("Timewise scores are not supported."); throw new IllegalArgumentException("Unknown root element: " + n); }
/** Reads the given MusicXML document and returns the score. */ public static Score read( MxlScorePartwise doc, Score baseScore, ErrorProcessing err, boolean ignoreErrors) { MusicReaderContext context = new MusicReaderContext(baseScore, new MusicReaderSettings(err, ignoreErrors)); // read the parts int staffIndexOffset = 0; It<MxlPart> mxlParts = it(doc.getParts()); for (MxlPart mxlPart : mxlParts) { // clear part-dependent context values int stavesCount = baseScore.getStavesList().getParts().get(mxlParts.getIndex()).getStavesCount(); context = context.beginNewPart(mxlParts.getIndex()); staffIndexOffset += stavesCount; // read the measures It<MxlMeasure> mxlMeasures = it(mxlPart.getMeasures()); for (MxlMeasure mxlMeasure : mxlMeasures) { try { context = readMeasure(context, mxlMeasure, mxlMeasures.getIndex()); } catch (MusicReaderException ex) { throw new RuntimeException("Error at " + ex.getContext().toString(), ex); } catch (Exception ex) { throw new RuntimeException("Error (roughly) around " + context.toString(), ex); } } } // go through the whole score, and fill empty measures (that means, measures where // voice 0 has no single VoiceElement) with rests Fraction measureDuration = fr(1, 4); for (int iStaff = 0; iStaff < context.getScore().getStavesCount(); iStaff++) { Staff staff = context.getScore().getStaff(atStaff(iStaff)); for (int iMeasure = 0; iMeasure < staff.getMeasures().size(); iMeasure++) { Measure measure = staff.getMeasures().get(iMeasure); Time newTime = context.getScore().getScoreHeader().getColumnHeader(iMeasure).getTime(); if (newTime != null) { // time signature has changed if (newTime instanceof NormalTime) { measureDuration = ((NormalTime) newTime).getBeatsPerMeasure(); } else { measureDuration = fr(1, 4); // default: 1/4 } } Voice voice0 = measure.getVoices().get(0); if (voice0.isEmpty()) { // TODO: "whole rests" or split. currently, also 3/4 rests are possible context = context.withScore( ScoreController.writeVoiceElement( context.getScore(), mp(iStaff, iMeasure, 0, _0), new Rest(measureDuration))); } } } return context.getScore(); }