Java List to Set listToSet(final BsonArray array)

Description

list To Set

License

Apache License

Declaration

private static Set<String> listToSet(final BsonArray array) 

Method Source Code

//package com.java2s;
/*// www.j av  a2  s.  com
 * Copyright 2008-2015 MongoDB, Inc.
 *
 * 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.
 */

import org.bson.BsonArray;

import org.bson.BsonValue;

import java.util.Collections;
import java.util.HashSet;

import java.util.Set;

public class Main {
    private static Set<String> listToSet(final BsonArray array) {
        if (array == null || array.isEmpty()) {
            return Collections.emptySet();
        } else {
            Set<String> set = new HashSet<String>();
            for (BsonValue value : array) {
                set.add(value.asString().getValue());
            }
            return set;
        }
    }
}

Related

1. listToSet(List list)
2. toSet(List