/*
* 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.
*
* Copyright 2012-2019 the original author or authors.
*/
package org.assertj.core.condition;
import static java.util.
Collections.unmodifiableCollection;
import static java.util.stream.
Collectors.toList;
import static org.assertj.core.util.
Preconditions.checkNotNull;
import java.util.*;
import org.assertj.core.api.
Condition;
import org.assertj.core.util.
VisibleForTesting;
/**
* Join of two or more <code>{@link Condition}</code>s.
* @param <T> the type of object this condition accepts.
*
* @author Yvonne Wang
* @author Mikhail Mazursky
*/
public abstract class
Join<T> extends
Condition<T> {
@
VisibleForTesting
final
Collection<
Condition<? super T>>
conditions;
/**
* Creates a new <code>{@link Join}</code>.
* @param conditions the conditions to join.
* @throws NullPointerException if the given array is {@code null}.
* @throws NullPointerException if any of the elements in the given array is {@code null}.
*/
@
SafeVarargs
protected
Join(
Condition<? super T>...
conditions) {
checkNotNull(
conditions,
conditionsIsNull());
this.
conditions =
Arrays.
stream(
conditions).
map(
Join::notNull).
collect(
toList());
}
/**
* Creates a new <code>{@link Join}</code>.
* @param conditions the conditions to join.
* @throws NullPointerException if the given iterable is {@code null}.
* @throws NullPointerException if any of the elements in the given iterable is {@code null}.
*/
protected
Join(
Iterable<? extends
Condition<? super T>>
conditions) {
checkNotNull(
conditions,
conditionsIsNull());
this.
conditions = new
ArrayList<>();
for (
Condition<? super T>
condition :
conditions)
this.
conditions.
add(
notNull(
condition));
}
private static
String conditionsIsNull() {
return "The given conditions should not be null";
}
private static <T>
Condition<T>
notNull(
Condition<T>
condition) {
return
checkNotNull(
condition, "The given conditions should not have null entries");
}
/**
* Returns the conditions to join.
* @return the conditions to join.
*/
protected final
Collection<
Condition<? super T>>
conditions() {
return
unmodifiableCollection(
conditions);
}
}