/**
* Copyright 2005-2011 Noelios Technologies.
*
* The contents of this file are subject to the terms of one of the following
* open source licenses: LGPL 3.0 or LGPL 2.1 or CDDL 1.0 or EPL 1.0 (the
* "Licenses"). You can select the license that you prefer but you may not use
* this file except in compliance with one of these Licenses.
*
* You can obtain a copy of the LGPL 3.0 license at
* http://www.opensource.org/licenses/lgpl-3.0.html
*
* You can obtain a copy of the LGPL 2.1 license at
* http://www.opensource.org/licenses/lgpl-2.1.php
*
* You can obtain a copy of the CDDL 1.0 license at
* http://www.opensource.org/licenses/cddl1.php
*
* You can obtain a copy of the EPL 1.0 license at
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the Licenses for the specific language governing permissions and
* limitations under the Licenses.
*
* Alternatively, you can obtain a royalty free commercial license with less
* limitations, transferable or non-transferable, directly at
* http://www.noelios.com/products/restlet-engine
*
* Restlet is a registered trademark of Noelios Technologies.
*/
package org.restlet.ext.oauth.internal;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import org.restlet.security.Role;
/**
* Utility methods for converting between OAuth Scopes and Restlet Roles
*
* @author Martin Svensson
*/
public class Scopes {
public static String toScope(List<Role> roles)
throws IllegalArgumentException {
StringBuilder sb = new StringBuilder();
for (Role r : roles) {
String scope = toScope(r);
sb.append(' ');
sb.append(scope);
}
return sb.substring(1);
}
public static String toScope(Role r) throws IllegalArgumentException {
String rname = r.getName();
if (rname == null)
throw new IllegalArgumentException("Role name cannot be null");
rname = rname.trim();
if (rname.length() < 1)
throw new IllegalArgumentException("Role name cannot be empty");
else if (rname.contains(" "))
throw new IllegalArgumentException("Role name cannot contain space");
return rname;
}
public static Role toRole(String scope) {
return new Role(scope, null);
}
public static List<Role> toRoles(String scopes) {
String[] tmp = parseScope(scopes);
List<Role> toRet = new ArrayList<Role>(tmp.length);
for (String scope : tmp) {
toRet.add(new Role(scope, null));
}
return toRet;
}
public static String[] parseScope(String scopes) {
if (scopes != null && scopes.length() > 0) {
StringTokenizer st = new StringTokenizer(scopes, " ");
String[] scope = new String[st.countTokens()];
for (int i = 0; st.hasMoreTokens(); i++)
scope[i] = st.nextToken();
return scope;
}
return new String[0];
}
}