001////////////////////////////////////////////////////////////////////////////////
002// checkstyle: Checks Java source code for adherence to a set of rules.
003// Copyright (C) 2001-2017 the original author or authors.
004//
005// This library is free software; you can redistribute it and/or
006// modify it under the terms of the GNU Lesser General Public
007// License as published by the Free Software Foundation; either
008// version 2.1 of the License, or (at your option) any later version.
009//
010// This library is distributed in the hope that it will be useful,
011// but WITHOUT ANY WARRANTY; without even the implied warranty of
012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013// Lesser General Public License for more details.
014//
015// You should have received a copy of the GNU Lesser General Public
016// License along with this library; if not, write to the Free Software
017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
018////////////////////////////////////////////////////////////////////////////////
019
020package com.puppycrawl.tools.checkstyle.api;
021
022import java.util.Collections;
023import java.util.HashSet;
024import java.util.Set;
025
026/**
027 * A before execution file filter set applies filters to events.
028 * If a before execution file filter in the set rejects an event, then the
029 * event is rejected. Otherwise, the event is accepted.
030 * @author Richard Veach
031 */
032public final class BeforeExecutionFileFilterSet
033    implements BeforeExecutionFileFilter {
034    /** Filter set. */
035    private final Set<BeforeExecutionFileFilter> beforeExecutionFileFilters = new HashSet<>();
036
037    /**
038     * Adds a Filter to the set.
039     * @param filter the Filter to add.
040     */
041    public void addBeforeExecutionFileFilter(BeforeExecutionFileFilter filter) {
042        beforeExecutionFileFilters.add(filter);
043    }
044
045    /**
046     * Removes filter.
047     * @param filter filter to remove.
048     */
049    public void removeBeforeExecutionFileFilter(BeforeExecutionFileFilter filter) {
050        beforeExecutionFileFilters.remove(filter);
051    }
052
053    /**
054     * Returns the Filters of the filter set.
055     * @return the Filters of the filter set.
056     */
057    public Set<BeforeExecutionFileFilter> getBeforeExecutionFileFilters() {
058        return Collections.unmodifiableSet(beforeExecutionFileFilters);
059    }
060
061    @Override
062    public String toString() {
063        return beforeExecutionFileFilters.toString();
064    }
065
066    @Override
067    public boolean accept(String uri) {
068        boolean result = true;
069        for (BeforeExecutionFileFilter filter : beforeExecutionFileFilters) {
070            if (!filter.accept(uri)) {
071                result = false;
072                break;
073            }
074        }
075        return result;
076    }
077
078    /** Clears the BeforeExecutionFileFilterSet. */
079    public void clear() {
080        beforeExecutionFileFilters.clear();
081    }
082}