com.fitbur.bytebuddy.matcher.CollectionSizeMatcher Maven / Gradle / Ivy
package com.fitbur.bytebuddy.matcher;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.util.Collection;
/**
* An element matcher that matches a collection by its size.
*
* @param The type of the matched entity.
*/
public class CollectionSizeMatcher> extends ElementMatcher.Junction.AbstractBase {
/**
* The expected size of the matched collection.
*/
private final int size;
/**
* Creates a new matcher that matches the size of a matched collection.
*
* @param size The expected size of the matched collection.
*/
public CollectionSizeMatcher(int size) {
this.size = size;
}
@Override
@SuppressFBWarnings(value = "DLS_DEAD_LOCAL_STORE", justification = "Iteration required to count size of an iterable")
public boolean matches(T target) {
if (target instanceof Collection) {
return ((Collection) target).size() == size;
} else {
int size = 0;
for (Object ignored : target) {
size++;
}
return size == this.size;
}
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& size == ((CollectionSizeMatcher) other).size;
}
@Override
public int hashCode() {
return size;
}
@Override
public String toString() {
return "ofSize(" + size + ')';
}
}