nl.basjes.parse.useragent.analyze.treewalker.steps.compare.StepNotEquals Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of yauaa Show documentation

A parsing and analyzing library to get information from a useragent string.

There is a newer version: 7.28.1

/*
 * Yet Another UserAgent Analyzer
 * Copyright (C) 2013-2018 Niels Basjes
 *
 * 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 nl.basjes.parse.useragent.analyze.treewalker.steps.compare;

import nl.basjes.parse.useragent.analyze.treewalker.steps.Step;
import nl.basjes.parse.useragent.analyze.treewalker.steps.WalkList.WalkResult;
import org.antlr.v4.runtime.tree.ParseTree;

public class StepNotEquals extends Step {

    private final String desiredValue;

    public StepNotEquals(String desiredValue) {
        this.desiredValue = desiredValue.toLowerCase();
    }

    @Override
    public WalkResult walk(ParseTree tree, String value) {
        String actualValue = getActualValue(tree, value);

        if (!actualValue.equalsIgnoreCase(desiredValue)) {
            return walkNextStep(tree, actualValue);
        }
        return null;
    }

    @Override
    public String toString() {
        return "NotEquals(" + desiredValue + ")";
    }

}