core/org.eclipse.statet.rj.server/srcEExtensions/org/eclipse/statet/rj/server/eruntime/ERJContext.java

/*=============================================================================#
 # Copyright (c) 2009, 2020 Stephan Wahlbrink and others.
 # 
 # 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, or the Apache License, Version 2.0
 # which is available at https://www.apache.org/licenses/LICENSE-2.0.
 # 
 # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
 # 
 # Contributors:
 #     Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation
 #=============================================================================*/

package org.eclipse.statet.rj.server.eruntime;

import static org.eclipse.statet.rj.server.util.ServerUtils.RJ_SERVER_ID;

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

import org.osgi.framework.Bundle;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Platform;

import org.eclipse.statet.jcommons.lang.NonNullByDefault;

import org.eclipse.statet.rj.RjInvalidConfigurationException;
import org.eclipse.statet.rj.server.util.RJContext;


/**
 * Server utilities when using the Eclipse Platform.
 */
@NonNullByDefault
public class ERJContext extends RJContext {
	
	
	public ERJContext() {
		super();
	}
	
	
	@Override
	public String getServerPolicyFilePath() throws RjInvalidConfigurationException {
		try {
			final Bundle bundle= Platform.getBundle(RJ_SERVER_ID);
			if (bundle == null) {
				throw new RjInvalidConfigurationException(String.format("RJ bundle '%1$s' is missing.", RJ_SERVER_ID));
			}
			final URL intern= bundle.getEntry('/' + LOCALHOST_POLICY_FILENAME);
			final URL java= FileLocator.resolve(intern);
			final String path= java.toExternalForm();
			return path;
		}
		catch (final IOException e) {
			throw new RjInvalidConfigurationException("Failed find server policy file.", e);
		}
	}
	
}