| // 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.cloudstack.acl; |
| |
| import com.cloud.exception.InvalidParameterValueException; |
| import com.google.common.base.Strings; |
| |
| import java.util.regex.Pattern; |
| |
| public final class Rule { |
| private final String rule; |
| private final static Pattern ALLOWED_PATTERN = Pattern.compile("^[a-zA-Z0-9*]+$"); |
| |
| public Rule(final String rule) { |
| validate(rule); |
| this.rule = rule; |
| } |
| |
| public boolean matches(final String commandName) { |
| return !Strings.isNullOrEmpty(commandName) |
| && commandName.toLowerCase().matches(rule.toLowerCase().replace("*", "\\w*")); |
| } |
| |
| public String getRuleString() { |
| return rule; |
| } |
| |
| @Override |
| public String toString() { |
| return rule; |
| } |
| |
| private static boolean validate(final String rule) { |
| if (Strings.isNullOrEmpty(rule) || !ALLOWED_PATTERN.matcher(rule).matches()) { |
| throw new InvalidParameterValueException("Only API names and wildcards are allowed, invalid rule provided: " + rule); |
| } |
| return true; |
| } |
| } |