/*
* Copyright 2014 - 2018 Rafael Winterhalter
*
* 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 net.bytebuddy.matcher;
import net.bytebuddy.build.
HashCodeAndEqualsPlugin;
import java.util.
Iterator;
/**
* A matcher that matches a given element of a collection. If no such element is contained by the matched iterable, the matcher
* returns {@code false}.
*
* @param <T> The type of the elements contained by the collection.
*/
@
HashCodeAndEqualsPlugin.
Enhance
public class
CollectionElementMatcher<T> extends
ElementMatcher.
Junction.
AbstractBase<
Iterable<? extends T>> {
/**
* The index of the matched element.
*/
private final int
index;
/**
* The matcher for the given element, if it exists.
*/
private final
ElementMatcher<? super T>
matcher;
/**
* Creates a new matcher for an element in a collection.
*
* @param index The index of the matched element.
* @param matcher The matcher for the given element, if it exists.
*/
public
CollectionElementMatcher(int
index,
ElementMatcher<? super T>
matcher) {
this.
index =
index;
this.
matcher =
matcher;
}
/**
* {@inheritDoc}
*/
public boolean
matches(
Iterable<? extends T>
target) {
Iterator<? extends T>
iterator =
target.
iterator();
for (int
index = 0;
index < this.
index;
index++) {
if (
iterator.
hasNext()) {
iterator.
next();
} else {
return false;
}
}
return
iterator.
hasNext() &&
matcher.
matches(
iterator.
next());
}
@
Override
public
String toString() {
return "with(" +
index + " matches " +
matcher + ")";
}
}