@NotNull
@Override
public SModel load(@NotNull DataSource dataSource, @NotNull Map<String, String> options)
throws IOException {
if (!(dataSource instanceof StreamDataSource)) {
throw new UnsupportedDataSourceException(dataSource);
}
StreamDataSource source = (StreamDataSource) dataSource;
SModelHeader binaryModelHeader;
try {
binaryModelHeader = BinaryPersistence.readHeader(source);
} catch (ModelReadException e) {
if (e.getCause() instanceof IOException) {
throw (IOException) e.getCause();
}
throw new IOException(e.getMessageEx(), e);
}
if (Boolean.parseBoolean(options.get(MetaModelInfoProvider.OPTION_KEEP_READ_METAINFO))) {
binaryModelHeader.setMetaInfoProvider(
new StuffedMetaModelInfo(
new RegularMetaModelInfo(binaryModelHeader.getModelReference())));
}
return new DefaultSModelDescriptor(new PersistenceFacility(this, source), binaryModelHeader);
}
@Override
protected ModelLoadResult loadSModel(ModelLoadingState state) {
DataSource source = getSource();
if (!source.isReadOnly() && source.getTimestamp() == -1) {
// no file on disk
DefaultSModel model = new DefaultSModel(getReference(), myHeader);
return new ModelLoadResult((SModel) model, ModelLoadingState.FULLY_LOADED);
}
ModelLoadResult result;
try {
result = myPersistence.readModel(myHeader, state);
} catch (ModelReadException e) {
LOG.warning(
String.format("Failed to load model %s: %s", getSource().getLocation(), e.toString()));
SuspiciousModelHandler.getHandler().handleSuspiciousModel(this, false);
InvalidDefaultSModel newModel = new InvalidDefaultSModel(getReference(), e);
return new ModelLoadResult((SModel) newModel, ModelLoadingState.NOT_LOADED);
}
jetbrains.mps.smodel.SModel model = result.getModel();
if (result.getState() == ModelLoadingState.FULLY_LOADED) {
boolean needToSave = model.updateSModelReferences() || model.updateModuleReferences();
if (needToSave && !source.isReadOnly()) {
setChanged(true);
}
}
LOG.assertLog(
model.getReference().equals(getReference()),
"\nError loading model from: \""
+ source.getLocation()
+ "\"\n"
+ "expected model UID : \""
+ getReference()
+ "\"\n"
+ "but was UID : \""
+ model.getReference()
+ "\"\n"
+ "the model will not be available.\n"
+ "Make sure that all project's roots and/or the model namespace is correct");
return result;
}
@NotNull
@Override
public Iterable<Problem> getProblems() {
return Collections.<Problem>singleton(
new PersistenceProblem(
Kind.Load,
myCause == null ? "Couldn't read model." : myCause.getMessageEx(),
null,
true));
}