2 * Copyright 2005 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.wamblee.crawler.kiss.main;
19 import java.util.List;
21 import org.wamblee.conditions.Condition;
22 import org.wamblee.crawler.kiss.guide.MatchVisitor;
23 import org.wamblee.crawler.kiss.guide.Program;
24 import org.wamblee.crawler.kiss.guide.TVGuide;
27 * Obtains a list of interesting programs from a TV guide and decides what to do
30 * @author Erik Brakkee
32 public class ProgramFilter {
34 private Condition<Program> _condition;
36 private ProgramAction _action;
39 * Constructs the program filter.
40 * @param aCondition Condition used to find interesting programs.
41 * @param aAction Corresponding action to execute for matching programs.
43 public ProgramFilter(Condition<Program> aCondition, ProgramAction aAction) {
44 _condition = aCondition;
52 public ProgramAction getAction() {
57 * Applies the filter to a TV guide.
58 * @param aGuide TV guide.
59 * @return List of matching programs.
61 public List<Program> apply(TVGuide aGuide) {
62 MatchVisitor matcher = new MatchVisitor(_condition);
63 aGuide.accept(matcher);
64 return matcher.getMatches();