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/*
* 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 io.github.honhimw.ms.support;
import java.util.Collection;
import java.util.Map;
/**
* Copy from org.apache.commons:commons-lang3
*
* @author hon_him
* @since 2024-01-08
*/
public class CollectionUtils {
/**
* Null-safe check if the specified collection is empty.
*
* Null returns true.
*
* @param coll the collection to check, may be null
* @return true if empty or null
*/
public static boolean isEmpty(Collection coll) {
return coll == null || coll.isEmpty();
}
/**
* Null-safe check if the specified collection is not empty.
*
* Null returns false.
*
* @param coll the collection to check, may be null
* @return true if non-null and non-empty
*/
public static boolean isNotEmpty(Collection coll) {
return !isEmpty(coll);
}
/**
* Null-safe check if the specified map is empty.
*
* Null returns true.
*
* @param map the map to check, may be null
* @return true if empty or null
*/
public static boolean isEmpty(Map map) {
return map == null || map.isEmpty();
}
/**
* Null-safe check if the specified map is not empty.
*
* Null returns false.
*
* @param map the map to check, may be null
* @return true if non-null and non-empty
*/
public static boolean isNotEmpty(Map map) {
return !isEmpty(map);
}
}