org.apache.cassandra.auth.Resources Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.auth;
import java.util.ArrayList;
import java.util.List;
import org.apache.cassandra.utils.Hex;
public final class Resources
{
/**
* Construct a chain of resource parents starting with the resource and ending with the root.
*
* @param resource The staring point.
* @return list of resource in the chain form start to the root.
*/
public static List chain(IResource resource)
{
List chain = new ArrayList();
while (true)
{
chain.add(resource);
if (!resource.hasParent())
break;
resource = resource.getParent();
}
return chain;
}
/**
* Creates an IResource instance from its external name.
* Resource implementation class is inferred by matching against the known IResource
* impls' root level resources.
* @param name
* @return an IResource instance created from the name
*/
public static IResource fromName(String name)
{
if (name.startsWith(RoleResource.root().getName()))
return RoleResource.fromName(name);
else if (name.startsWith(DataResource.root().getName()))
return DataResource.fromName(name);
else if (name.startsWith(FunctionResource.root().getName()))
return FunctionResource.fromName(name);
else if (name.startsWith(JMXResource.root().getName()))
return JMXResource.fromName(name);
else
throw new IllegalArgumentException(String.format("Name %s is not valid for any resource type", name));
}
@Deprecated
public final static String ROOT = "cassandra";
@Deprecated
public final static String KEYSPACES = "keyspaces";
@Deprecated
public static String toString(List