hu.bme.mit.incqueryd.engine.util.EObjectDeserializer.java Source code

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Here is the source code for hu.bme.mit.incqueryd.engine.util.EObjectDeserializer.java

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/*******************************************************************************
 * Copyright (c) 2010-2014, Gabor Szarnyas, Istvan Rath and Daniel Varro
 * 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:
 * Gabor Szarnyas - initial API and implementation
 *******************************************************************************/
package hu.bme.mit.incqueryd.engine.util;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import org.apache.commons.io.FileUtils;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.emfjson.jackson.resource.JsonResourceFactory;

public class EObjectDeserializer {

    public static EObject deserializeFromFile(final String filename, Set<? extends EPackage> packages)
            throws IOException {
        final ResourceSet resourceSet = new ResourceSetImpl();
        Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put("json", new JsonResourceFactory());

        final Map<String, Object> options = new HashMap<String, Object>();

        final Resource resource = resourceSet.createResource(URI.createURI(filename));
        resource.load(options);

        return resource.getContents().get(0);
    }

    public static EObject deserializeFromString(final String model, Set<? extends EPackage> packages)
            throws IOException {
        final File tempFile = EObjectSerializer.createTempFile();
        FileUtils.writeStringToFile(tempFile, model);
        return deserializeFromFile(tempFile.getPath(), packages);
    }

}