001package ca.uhn.fhir.util;
002
003/*-
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2022 Smile CDR, Inc.
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import java.util.Arrays;
024import java.util.Set;
025import java.util.stream.Collectors;
026
027import static org.apache.commons.lang3.StringUtils.isNotBlank;
028import static org.apache.commons.lang3.StringUtils.split;
029import static org.apache.commons.lang3.StringUtils.trim;
030
031public class ArrayUtil {
032
033        /** Non instantiable */
034        private ArrayUtil() {}
035
036        /**
037         * Takes in a list like "foo, bar,, baz" and returns a set containing only ["foo", "bar", "baz"]
038         */
039        public static Set<String> commaSeparatedListToCleanSet(String theValueAsString) {
040                Set<String> resourceTypes;
041                resourceTypes = Arrays.stream(split(theValueAsString, ","))
042                        .map(t->trim(t))
043                        .filter(t->isNotBlank(t))
044                        .collect(Collectors.toSet());
045                return resourceTypes;
046        }
047
048}