load_generator/linux/plugins/org.eclipse.app4mc.slg.linux/src/org/eclipse/app4mc/slg/linux/artefacts/LinuxRootTransformer.java

/**
 ********************************************************************************
 * Copyright (c) 2020-2021 Robert Bosch GmbH.
 * 
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 * 
 * SPDX-License-Identifier: EPL-2.0
 * 
 * Contributors:
 *     Robert Bosch GmbH - initial API and implementation
 ********************************************************************************
 */

package org.eclipse.app4mc.slg.linux.artefacts;

import java.io.File;
import java.util.Map;
import java.util.Properties;

import org.eclipse.app4mc.slg.linux.transformers.LinuxModel2TextTransformer;
import org.eclipse.app4mc.transformation.ServiceConstants;
import org.eclipse.app4mc.transformation.transformers.Model2TextRootTransformer;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.ConfigurationPolicy;
import org.osgi.service.component.annotations.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.inject.Guice;
import com.google.inject.Injector;

@Component(
		configurationPid = ServiceConstants.SESSION_CONFIGURATION_PID,
		configurationPolicy = ConfigurationPolicy.REQUIRE,
		property = { "transformation=LINUX_SLG" },
		service = Model2TextRootTransformer.class)

public class LinuxRootTransformer extends Model2TextRootTransformer {

	private static final Logger LOG = LoggerFactory.getLogger(LinuxRootTransformer.class);
	
	@Reference
	private LinuxGoogleGuiceModuleFactory moduleFactory;

	Properties properties;

	@Activate
	void activate(Map<String, ?> properties) {
		LOG.debug("LinuxRootTransformer activated : {}", this.hashCode());

		this.properties = new Properties();

		this.properties.putAll(properties);
	}

	@Override
	public void m2tTransformation(ResourceSet inputResourceSet) {

		Injector injector = Guice.createInjector(moduleFactory.getModule(properties));

		LinuxModel2TextTransformer instance = injector.getInstance(LinuxModel2TextTransformer.class);

		harmonizeSLGParams(properties);

		instance.m2tTransformation(inputResourceSet);
	}

	private void harmonizeSLGParams(Properties props) {

		if (!props.containsKey("configurationFile")) {
			LOG.error("'configurationFile' property not set in the input properties file");
			throw new IllegalArgumentException("'configurationFile' property not set in the input properties file");

		}

		harmonizeSLGParam(props, "workingDirectory", "configurationFile");
	}

	private void harmonizeSLGParam(Properties props, String workingDirectoryKey, String param) {

		String workingDirectory = (String) props.get(workingDirectoryKey);

		String paramValue = (String) props.get(param);

		if (paramValue != null && workingDirectory != null) {

			File file = null;

			file = new File(paramValue);

			if (!file.exists()) {

				file = new File(workingDirectory, paramValue);

				if (file.exists()) {
					props.put(param, file.getAbsolutePath());
				}
			}
		}
	}

}