/*
* 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.tinkerpop.gremlin.process.traversal.step.filter;
import org.apache.tinkerpop.gremlin.process.traversal.Traversal;
import org.apache.tinkerpop.gremlin.process.traversal.Traverser;
import org.apache.tinkerpop.gremlin.structure.util.StringFactory;
/**
* @author Marko A. Rodriguez (http://markorodriguez.com)
*/
public final class ClassFilterStep<S, T> extends FilterStep<S> {
private final Class<T> classFilter;
private final boolean allowClasses;
public ClassFilterStep(final Traversal.Admin traversal, final Class<T> classFilter, final boolean allowClasses) {
super(traversal);
this.classFilter = classFilter;
this.allowClasses = allowClasses;
}
public boolean filter(final Traverser.Admin<S> traverser) {
return this.allowClasses == this.classFilter.isInstance(traverser.get());
}
public int hashCode() {
return super.hashCode() ^ this.classFilter.hashCode() ^ Boolean.hashCode(this.allowClasses);
}
public String toString() {
return StringFactory.stepString(this, this.classFilter.getSimpleName());
}
}