org.eclipse.osbp.runtime.common/src/org/eclipse/osbp/runtime/common/session/SessionUtil.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0 
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *         Florian Pirchner - Initial implementation
 */

package org.eclipse.osbp.runtime.common.session;

import java.util.regex.Pattern;

public class SessionUtil {

	private SessionUtil(){
		
	}
	
	/**
	 * Splits the fragment by ISession.PARAMETER_SEPARATOR and returns the encoded info. Returns null, if no fragment available.
	 * @param fragment
	 * @return
	 */
	public static Info getFragmentInfo(String fragment){
		if(fragment == null){
			return null;
		}
		String[] masterPara = fragment.split(Pattern.quote(ISession.PARAMETER_SEPARATOR));
		String masterId = masterPara[0];
		String displayId = null;
		String languageTag = "en-US";
		String[] parameters =  masterPara[1].split(Pattern.quote(ISession.SUBSEQUENT_PARAMETER));
		for(String parameter:parameters) {
			String[] keyValue = parameter.split("=");
			if("display".equalsIgnoreCase(keyValue[0].trim())) {
				displayId = keyValue[1].trim();
			} else if("locale".equalsIgnoreCase(keyValue[0].trim())) {
				languageTag = keyValue[1].trim();
			}
		}
		return new Info(masterId, displayId, languageTag);
	}
	
	public static class Info {
		public final String host;
		public final String ui;
		public final String languageTag;
		public Info(String host, String ui, String languageTag) {
			super();
			this.host = host;
			this.ui = ui;
			this.languageTag = languageTag;
		}
	}
}