bundles/rcp/org.eclipse.apogy.rcp.services.logging/src/org/eclipse/apogy/services/logging/Activator.java

/*******************************************************************************
 * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency 
 * 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:
 *     Pierre Allard,
 *     Regent L'Archeveque - initial API and implementation
 *
 * SPDX-License-Identifier: EPL-1.0
 *******************************************************************************/
package org.eclipse.apogy.services.logging;

import java.io.IOException;
import java.net.URL;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.slf4j.LoggerFactory;

import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.joran.JoranConfigurator;
import ch.qos.logback.core.joran.spi.JoranException;

public class Activator implements BundleActivator {

	@Override
	public void start(BundleContext bundleContext) throws Exception {
		configureLogbackInBundle(bundleContext.getBundle());
	}

	@Override
	public void stop(BundleContext bundleContext) throws Exception {
	}

	private void configureLogbackInBundle(Bundle bundle) throws JoranException, IOException {
		LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
		JoranConfigurator jc = new JoranConfigurator();
		jc.setContext(loggerContext);
		loggerContext.reset();

		// this assumes that the logback.xml file is in the root of the bundle.
		URL logbackConfigFileUrl = FileLocator.find(bundle, new Path("config/logback.xml"), null);
		jc.doConfigure(logbackConfigFileUrl.openStream());
	}
}