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}