| /* |
| * 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.guacamole.auth.ldap.conf; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.regex.Pattern; |
| import org.apache.guacamole.GuacamoleException; |
| import org.apache.guacamole.properties.GuacamoleProperty; |
| |
| /** |
| * A GuacamoleProperty whose value is a List of Strings. The string value |
| * parsed to produce this list is a comma-delimited list. Duplicate values are |
| * ignored, as is any whitespace following delimiters. To maintain |
| * compatibility with the behavior of Java properties in general, only |
| * whitespace at the beginning of each value is ignored; trailing whitespace |
| * becomes part of the value. |
| */ |
| public abstract class StringListProperty implements GuacamoleProperty<List<String>> { |
| |
| /** |
| * A pattern which matches against the delimiters between values. This is |
| * currently simply a comma and any following whitespace. Parts of the |
| * input string which match this pattern will not be included in the parsed |
| * result. |
| */ |
| private static final Pattern DELIMITER_PATTERN = Pattern.compile(",\\s*"); |
| |
| @Override |
| public List<String> parseValue(String values) throws GuacamoleException { |
| |
| // If no property provided, return null. |
| if (values == null) |
| return null; |
| |
| // Split string into a list of individual values |
| List<String> stringValues = Arrays.asList(DELIMITER_PATTERN.split(values)); |
| if (stringValues.isEmpty()) |
| return null; |
| |
| return stringValues; |
| |
| } |
| |
| } |