/*
* This file is part of the Wayback archival access software
* (http://archive-access.sourceforge.net/projects/wayback/).
*
* Licensed to the Internet Archive (IA) by one or more individual
* contributors.
*
* The IA 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.archive.wayback.util.operator;
import java.util.ArrayList;
import java.util.List;
public class Utils {
@SuppressWarnings("unchecked")
public static <T> List<BooleanOperator<T>> getOperators(BooleanOperator<T> top) {
ArrayList<BooleanOperator<T>> operators = new ArrayList<BooleanOperator<T>>();
ArrayList<BooleanOperator<T>> toInspect = new ArrayList<BooleanOperator<T>>();
toInspect.add(top);
while(toInspect.size() > 0) {
BooleanOperator<T> current = toInspect.remove(0);
operators.add(current);
if(current instanceof UnaryBooleanOperator) {
toInspect.add(((UnaryBooleanOperator<T>)current).getOperand());
} else if(current instanceof BinaryBooleanOperator) {
toInspect.add(((BinaryBooleanOperator<T>)current).getOperand1());
toInspect.add(((BinaryBooleanOperator<T>)current).getOperand2());
}
}
return operators;
}
}