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/*******************************************************************************
* Copyright (c) 2013 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.ats.dsl;
import java.io.ByteArrayInputStream;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.osee.ats.dsl.atsDsl.AtsDsl;
import org.eclipse.osee.ats.dsl.atsDsl.impl.AtsDslFactoryImpl;
import org.eclipse.osee.framework.jdk.core.type.OseeArgumentException;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.resource.XtextResourceSet;
import com.google.inject.Injector;
/**
* @author Donald G. Dunne
*/
public class AtsDslResourceProvider implements IResourceProvider {
private Resource resource;
public AtsDslResourceProvider() {
}
@Override
public Collection<String> getErrors() {
List<String> errors = new LinkedList<String>();
for (org.eclipse.emf.ecore.resource.Resource.Diagnostic diagnostic : resource.getErrors()) {
throw new IllegalStateException(diagnostic.toString());
}
return errors;
}
@Override
public AtsDsl getContents(String uri, String xTextData) throws Exception {
AtsDslStandaloneSetup setup = new AtsDslStandaloneSetup();
Injector injector = setup.createInjectorAndDoEMFRegistration();
XtextResourceSet set = injector.getInstance(XtextResourceSet.class);
set.addLoadOption(XtextResource.OPTION_RESOLVE_ALL, Boolean.TRUE);
resource = set.createResource(URI.createURI(uri));
resource.load(new ByteArrayInputStream(xTextData.getBytes("UTF-8")), set.getLoadOptions());
EList<EObject> contents = resource.getContents();
if (contents.size() == 1) {
return (AtsDsl) contents.get(0);
} else if (contents.isEmpty()) {
return AtsDslFactoryImpl.init().createAtsDsl();
} else {
throw new OseeArgumentException("Unexpected contents size > 1 in AtsDslResourceProvicer", contents.toString());
}
}
}
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