IDUtil.java

/*******************************************************************************
* Copyright (c) 2016 Composent, Inc. and others. 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:
*   Composent, Inc. - initial API and implementation
******************************************************************************/
package org.eclipse.ecf.remoteservice.util;

import java.util.Iterator;
import java.util.List;
import org.eclipse.ecf.core.identity.*;

/**
 * @since 8.9
 */
public class IDUtil {

	public static IIDFactory getIDFactory() {
		return IDFactory.getDefault();
	}

	public static Namespace getNamespaceByName(String namespaceName) {
		if (namespaceName == null)
			return null;
		return getIDFactory().getNamespaceByName(namespaceName);
	}

	public static Namespace findNamespaceByIdName(String idName) {
		if (idName == null)
			return null;
		int colonIndex = idName.indexOf(Namespace.SCHEME_SEPARATOR);
		if (colonIndex <= 0)
			return null;
		String scheme = idName.substring(0, colonIndex);
		// First try to find the Namespace using the protocol directly
		Namespace ns = getNamespaceByName(scheme);
		return (ns == null) ? findNamespaceByScheme(scheme) : ns;
	}

	public static Namespace findNamespaceByScheme(String scheme) {
		if (scheme == null)
			return null;
		if (scheme.equals("ecftcp")) //$NON-NLS-1$
			return getIDFactory().getNamespaceByName(StringID.class.getName());
		List namespaces = getIDFactory().getNamespaces();
		for (Iterator i = namespaces.iterator(); i.hasNext();) {
			Namespace ns = (Namespace) i.next();
			if (scheme.equals(ns.getScheme()))
				return ns;
		}
		return null;
	}

	public static ID createID(String namespaceName, String idName) throws IDCreateException {
		Namespace ns = (namespaceName != null) ? getNamespaceByName(namespaceName) : findNamespaceByIdName(idName);
		if (ns == null)
			throw new IDCreateException("Cannot find Namespace for namespaceName=" + namespaceName //$NON-NLS-1$
					+ " and idName=" + idName); //$NON-NLS-1$
		return createID(ns, idName);
	}

	public static ID createID(Namespace namespace, String idName) throws IDCreateException {
		return getIDFactory().createID(namespace, idName);
	}

	public static ID createID(Namespace namespace, Object[] args) throws IDCreateException {
		return getIDFactory().createID(namespace, args);
	}

}