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/*
* SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.generator;
import com.google.inject.Inject;
import com.google.inject.Provider;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.xtext.diagnostics.Severity;
import org.eclipse.xtext.resource.FileExtensionProvider;
import org.eclipse.xtext.resource.IResourceFactory;
import org.eclipse.xtext.resource.XtextResourceSet;
import org.eclipse.xtext.util.LazyStringInputStream;
import org.eclipse.xtext.validation.CheckMode;
import org.eclipse.xtext.validation.IResourceValidator;
import tools.refinery.language.model.problem.Problem;
import tools.refinery.store.util.CancellationToken;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
public class ProblemLoader {
private String fileExtension;
@Inject
private Provider<XtextResourceSet> resourceSetProvider;
@Inject
private IResourceFactory resourceFactory;
@Inject
private IResourceValidator resourceValidator;
private CancellationToken cancellationToken = CancellationToken.NONE;
@Inject
public void setFileExtensionProvider(FileExtensionProvider fileExtensionProvider) {
this.fileExtension = fileExtensionProvider.getPrimaryFileExtension();
}
public ProblemLoader cancellationToken(CancellationToken cancellationToken) {
this.cancellationToken = cancellationToken;
return this;
}
public Problem loadString(String problemString) throws IOException {
try (var stream = new LazyStringInputStream(problemString)) {
return loadStream(stream);
}
}
public Problem loadStream(InputStream inputStream) throws IOException {
var resourceSet = resourceSetProvider.get();
var uri = URI.createFileURI("__synthetic." + fileExtension);
var resource = resourceFactory.createResource(uri);
resourceSet.getResources().add(resource);
resource.load(inputStream, Map.of());
return loadResource(resource);
}
public Problem loadFile(File file) throws IOException {
return loadFile(file.getAbsolutePath());
}
public Problem loadFile(String filePath) throws IOException {
return loadUri(URI.createFileURI(filePath));
}
public Problem loadUri(URI uri) throws IOException {
var resourceSet = resourceSetProvider.get();
var resource = resourceFactory.createResource(uri);
resourceSet.getResources().add(resource);
resource.load(Map.of());
return loadResource(resource);
}
public Problem loadResource(Resource resource) {
var issues = resourceValidator.validate(resource, CheckMode.ALL, () -> {
cancellationToken.checkCancelled();
return Thread.interrupted();
});
cancellationToken.checkCancelled();
var errors = issues.stream()
.filter(issue -> issue.getSeverity() == Severity.ERROR)
.toList();
if (!errors.isEmpty()) {
throw new ValidationErrorsException(resource.getURI(), errors);
}
if (resource.getContents().isEmpty() || !(resource.getContents().getFirst() instanceof Problem problem)) {
throw new IllegalArgumentException("Model generation problem not found in resource " + resource.getURI());
}
return problem;
}
}
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