PropertyUtils.java

/*******************************************************************************
 * Copyright (c) 2015 Composent, Inc. 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: Scott Lewis - initial API and implementation
 ******************************************************************************/
package org.eclipse.ecf.remoteservices.ui.util;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.ecf.internal.remoteservices.ui.Messages;
import org.osgi.framework.Constants;
import org.osgi.framework.ServiceReference;

/**
 * @since 3.3
 */
public class PropertyUtils {

	public static String convertStringArrayToString(String[] strings) {
		StringBuffer buf = new StringBuffer(Messages.PropertyUtils_0);
		for (int i = 0; i < strings.length; i++) {
			buf.append(strings[i]);
			if (i < strings.length - 1)
				buf.append(Messages.PropertyUtils_1);
		}
		return buf.append(Messages.PropertyUtils_2).toString();
	}

	public static Map<String, Object> convertServicePropsToMap(ServiceReference sr) {
		Map<String, Object> result = new HashMap<String, Object>();
		if (sr == null)
			return result;
		for (String key : sr.getPropertyKeys()) {
			Object val = sr.getProperty(key);
			if (val != null)
				result.put(key, val);
		}
		return result;
	}

	public static String convertObjectClassToString(ServiceReference sr) {
		return (sr == null) ? Messages.PropertyUtils_3
				: convertStringArrayToString((String[]) sr.getProperty(Constants.OBJECTCLASS));
	}

	public static final String getPackageName(String fqClassName) {
		int lastDot = fqClassName.lastIndexOf('.');
		return (lastDot == -1) ? fqClassName : fqClassName.substring(0, lastDot);
	}

	public static final List<String> getStringArrayProperty(Map<String, Object> props, String propName) {
		Object r = props.get(propName);
		List<String> results = new ArrayList<String>();
		if (r == null)
			return results;
		else if (r instanceof String[]) {
			String[] vals = (String[]) r;
			for (String v : vals)
				results.add(v);
		} else if (r instanceof String)
			results.add((String) r);
		else
			results.add(r.toString());
		return results;
	}

}