////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code for adherence to a set of rules.
// Copyright (C) 2001-2017 the original author or authors.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
////////////////////////////////////////////////////////////////////////////////
package com.puppycrawl.tools.checkstyle.api;
import java.util.Collections;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;
/**
* A filter set applies filters to AuditEvents.
* If a filter in the set rejects an AuditEvent, then the
* AuditEvent is rejected. Otherwise, the AuditEvent is accepted.
* @author Rick Giles
*/
public class FilterSet
implements Filter {
/** Filter set. */
private final Set<Filter> filters = new HashSet<>();
/**
* Adds a Filter to the set.
* @param filter the Filter to add.
*/
public void addFilter(Filter filter) {
filters.add(filter);
}
/**
* Removes filter.
* @param filter filter to remove.
*/
public void removeFilter(Filter filter) {
filters.remove(filter);
}
/**
* Returns the Filters of the filter set.
* @return the Filters of the filter set.
*/
public Set<Filter> getFilters() {
return Collections.unmodifiableSet(filters);
}
@Override
public String toString() {
return filters.toString();
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (other == null || getClass() != other.getClass()) {
return false;
}
final FilterSet filterSet = (FilterSet) other;
return Objects.equals(filters, filterSet.filters);
}
@Override
public int hashCode() {
return Objects.hash(filters);
}
@Override
public boolean accept(AuditEvent event) {
boolean result = true;
for (Filter filter : filters) {
if (!filter.accept(event)) {
result = false;
break;
}
}
return result;
}
/** Clears the FilterSet. */
public void clear() {
filters.clear();
}
}