| /* |
| * 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<? extends IResource> chain(IResource resource) |
| { |
| List<IResource> chain = new ArrayList<IResource>(); |
| 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 |
| 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<Object> resource) |
| { |
| StringBuilder buff = new StringBuilder(); |
| for (Object component : resource) |
| { |
| buff.append("/"); |
| if (component instanceof byte[]) |
| buff.append(Hex.bytesToHex((byte[])component)); |
| else |
| buff.append(component); |
| } |
| return buff.toString(); |
| } |
| } |