org.eclipse.mdm.nucleus/org.eclipse.mdm.api.atfxadapter/src/main/java/org/eclipse/mdm/api/atfxadapter/ATFXContextFactory.java

/********************************************************************************
 * Copyright (c) 2015-2018 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 ********************************************************************************/
package org.eclipse.mdm.api.atfxadapter;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.Map;

import org.asam.ods.AoException;
import org.asam.ods.AoSession;
import org.eclipse.mdm.api.base.ConnectionException;
import org.eclipse.mdm.api.dflt.ApplicationContext;
import org.eclipse.mdm.api.dflt.ApplicationContextFactory;
import org.omg.CORBA.ORB;

import de.rechner.openatfx.AoServiceFactory;

public class ATFXContextFactory implements ApplicationContextFactory {

	private final ORB orb = ORB.init(new String[] {}, System.getProperties());

	@Override
	public ApplicationContext connect(Map<String, String> parameters) throws ConnectionException {
		File atfxFile = new File(parameters.get("atfxfile"));

		try {
			AoSession aoSession;
			if (atfxFile.exists() && Files.size(atfxFile.toPath()) > 0L) {
				aoSession = AoServiceFactory.getInstance().newAoSession(orb, atfxFile);
			} else {
				throw new ConnectionException(
						"Cannot open session on a not existing or empty ATFX file: " + atfxFile.getAbsolutePath());
			}
			return new ATFXContext(orb, aoSession, parameters);
		} catch (AoException e) {
			throw new ConnectionException("Error " + e.reason, e);
		} catch (IOException e) {
			throw new ConnectionException("Error reading ATFX file " + atfxFile.getAbsolutePath(), e);
		}
	}
}