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+/**
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+ * Copyright (c) 2012 committers of YAKINDU and others.
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+ * All rights reserved. This program and the accompanying materials
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+ * are made available under the terms of the Eclipse Public License v1.0
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+ * which accompanies this distribution, and is available at
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+ * http://www.eclipse.org/legal/epl-v10.html
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+ *
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+ * Contributors:
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+ * committers of YAKINDU - initial API and implementation
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+ */
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+package org.yakindu.sct.generator.genmodel.test.util;
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+
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+import java.io.StringReader;
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+
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+import org.eclipse.emf.common.util.URI;
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+import org.eclipse.emf.ecore.EObject;
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+import org.eclipse.xtext.ParserRule;
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+import org.eclipse.xtext.XtextFactory;
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+import org.eclipse.xtext.diagnostics.Severity;
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+import org.eclipse.xtext.linking.ILinker;
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+import org.eclipse.xtext.nodemodel.INode;
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+import org.eclipse.xtext.parser.IParseResult;
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+import org.eclipse.xtext.parser.IParser;
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+import org.eclipse.xtext.resource.XtextResource;
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+import org.eclipse.xtext.resource.impl.ListBasedDiagnosticConsumer;
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+import org.yakindu.sct.model.sgraph.Scope;
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+
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+import com.google.inject.Inject;
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+import com.google.inject.Provider;
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+
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+/**
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+ *
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+ * @author andreas muelder - Initial contribution and API
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+ *
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+ */
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+public abstract class AbstractSGenTest {
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+
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+ @Inject
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+ private IParser parser;
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+ @Inject
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+ private ILinker linker;
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+ @Inject
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+ private Provider<XtextResource> resourceProvider;
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+
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+ protected EObject parseExpression(String expression, String ruleName) {
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+ return parseExpression(expression, null, ruleName);
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+ }
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+
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+ protected EObject parseExpression(String expression, Scope context,
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+ String ruleName) {
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+ XtextResource resource = resourceProvider.get();
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+ resource.setURI(URI.createPlatformPluginURI("path", true));
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+ ParserRule parserRule = XtextFactory.eINSTANCE.createParserRule();
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+ parserRule.setName(ruleName);
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+ IParseResult result = parser.parse(parserRule, new StringReader(
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+ expression));
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+ EObject rootASTElement = result.getRootASTElement();
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+ resource.getContents().add(rootASTElement);
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+ ListBasedDiagnosticConsumer diagnosticsConsumer = new ListBasedDiagnosticConsumer();
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+ linker.linkModel(result.getRootASTElement(), diagnosticsConsumer);
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+ if (result.hasSyntaxErrors()) {
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+ StringBuilder errorMessages = new StringBuilder();
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+ Iterable<INode> syntaxErrors = result.getSyntaxErrors();
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+ for (INode iNode : syntaxErrors) {
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+ errorMessages.append(iNode.getSyntaxErrorMessage());
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+ errorMessages.append("\n");
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+ }
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+ throw new RuntimeException(
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+ "Could not parse expression, syntax errors: "
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+ + errorMessages);
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+ }
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+ if (diagnosticsConsumer.hasConsumedDiagnostics(Severity.ERROR)) {
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+ throw new RuntimeException("Error during linking: "
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+ + diagnosticsConsumer.getResult(Severity.ERROR));
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+ }
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+ return rootASTElement;
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+ }
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+
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+}
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