001/*-
002 * #%L
003 * HAPI FHIR - Core Library
004 * %%
005 * Copyright (C) 2014 - 2024 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.util;
021
022import java.util.Arrays;
023import java.util.Set;
024import java.util.stream.Collectors;
025
026import static org.apache.commons.lang3.StringUtils.isNotBlank;
027import static org.apache.commons.lang3.StringUtils.split;
028import static org.apache.commons.lang3.StringUtils.trim;
029
030public class ArrayUtil {
031
032        /** Non instantiable */
033        private ArrayUtil() {}
034
035        /**
036         * Takes in a list like "foo, bar,, baz" and returns a set containing only ["foo", "bar", "baz"]
037         */
038        public static Set<String> commaSeparatedListToCleanSet(String theValueAsString) {
039                Set<String> resourceTypes;
040                resourceTypes = Arrays.stream(split(theValueAsString, ","))
041                                .map(t -> trim(t))
042                                .filter(t -> isNotBlank(t))
043                                .collect(Collectors.toSet());
044                return resourceTypes;
045        }
046}