001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.demos.sandbox.ml.linear.learner.stream.twitter;
031
032import java.util.List;
033
034import org.openimaj.tools.twitter.modes.filter.TwitterPreprocessingPredicate;
035import org.openimaj.twitter.USMFStatus;
036import org.openimaj.util.function.Predicate;
037
038/**
039 * Given a {@link List} of {@link USMFStatus} instances, create a new
040 * {@link List} containing only those which pass the
041 * {@link TwitterPredicateFunction} functions specified
042 * 
043 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
044 *
045 */
046public class TwitterPredicateFunction implements Predicate<USMFStatus> {
047
048        private TwitterPreprocessingPredicate[] filters;
049
050        /**
051         * @param filters
052         */
053        public TwitterPredicateFunction(TwitterPreprocessingPredicate... filters) {
054                this.filters = filters;
055                for (final TwitterPreprocessingPredicate filter : filters) {
056                        filter.validate();
057                }
058        }
059
060        @Override
061        public boolean test(USMFStatus object) {
062                boolean passed = true;
063                for (final TwitterPreprocessingPredicate filter : this.filters) {
064                        passed = filter.test(object);
065                        if (!passed)
066                                break;
067                }
068                return passed;
069        }
070
071}