edu.umd.cs.psl.evaluation.statistics.filter.InSetFilter.java Source code

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Here is the source code for edu.umd.cs.psl.evaluation.statistics.filter.InSetFilter.java

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/*
 * This file is part of the PSL software.
 * Copyright 2011 University of Maryland
 *
 * 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 edu.umd.cs.psl.evaluation.statistics.filter;

import java.util.Iterator;
import java.util.Set;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterators;

import edu.umd.cs.psl.model.atom.Atom;

public class InSetFilter implements AtomFilter {

    private final Set<Atom> atoms;

    public InSetFilter(Set<Atom> atomSet) {
        atoms = atomSet;
    }

    @Override
    public Iterator<Atom> filter(Iterator<Atom> input) {
        return Iterators.filter(input, new Predicate<Atom>() {
            @Override
            public boolean apply(Atom atom) {
                return atoms.contains(atom);
            }

        });
    }

}