/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.logging.log4j.util;
import java.util.function.Predicate;
/**
* <em>This class should be considered to be internal.</em> Used to locate the StackFrame that called the named class.
*/
public final class ClassPredicate implements Predicate<StackWalker.StackFrame> {
private final Class<?> clazz;
public ClassPredicate(Class<?> clazz) {
this.clazz = clazz;
}
private boolean next = false;
@Override
public boolean test(StackWalker.StackFrame f) {
if (clazz.equals(f.getDeclaringClass())) {
next = true;
return false;
} else if (next) {
next = false;
return true;
}
return false;
}
}