CommManagerSqlStringUtils.java

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/*
 * Sleuth Kit Data Model
 *
 * Copyright 2017-18 Basis Technology Corp.
 * Contact: carrier <at> sleuthkit <dot> org
 *
 * Licensed 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.sleuthkit.datamodel;
 
import java.util.Collection;
import java.util.Collections;

final class CommManagerSqlStringUtils {
 
        private CommManagerSqlStringUtils() {
        }

        static <T> String buildCSVString(Collection<T> values) {
                return joinAsStrings(values, ",");
        }

        static <T> String joinAsStrings(Collection<T> values, String separator) {
                if (values == null || values.isEmpty()) {
                        return "";
                }
                
                values.removeAll(Collections.singleton(null));
                
                return org.apache.commons.lang3.StringUtils.join(values, separator);
        }
}