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EMF JSON Jackson

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/*
 * Copyright (c) 2015 Guillaume Hillairet.
 * 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:
 *     Guillaume Hillairet - initial API and implementation
 *
 */
package org.emfjson.handlers;

import org.eclipse.emf.common.util.URI;

/**
 * A URI handler that will avoid creating relative references between different platform:/resource/project-name or
 * platform/plugin/bundle-name, i.e., it will produce relative references only within projects or bundles
 * and will use absolute URIs for references outside of that project or bundle.
 */
public class AbsoluteCrossBundleAware extends BaseURIHandler {

	@Override
	public URI deresolve(URI baseURI, URI uri) {
		return !uri.isPlatform() ||
			(uri.segmentCount() > 1 && baseURI.segmentCount() > 1 &&
				uri.segment(0).equals(baseURI.segment(0)) &&
				uri.segment(1).equals(baseURI.segment(1))) ?
			super.deresolve(baseURI, uri) : uri;
	}

}