////////////////////////////////////////////////////////////////////////////////
// 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;
/**
* An audit listener that counts how many {@link AuditEvent AuditEvents}
* of a given severity have been generated.
*
* @author lkuehne
*/
public final class SeverityLevelCounter implements AuditListener {
/** The severity level to watch out for. */
private final SeverityLevel level;
/** Keeps track of the number of counted events. */
private int count;
/**
* Creates a new counter.
* @param level the severity level events need to have, must be non-null.
*/
public SeverityLevelCounter(SeverityLevel level) {
if (level == null) {
throw new IllegalArgumentException("'level' cannot be null");
}
this.level = level;
}
@Override
public void addError(AuditEvent event) {
if (level == event.getSeverityLevel()) {
count++;
}
}
@Override
public void addException(AuditEvent event, Throwable throwable) {
if (level == SeverityLevel.ERROR) {
count++;
}
}
@Override
public void auditStarted(AuditEvent event) {
count = 0;
}
@Override
public void fileStarted(AuditEvent event) {
// No code by default, should be overridden only by demand at subclasses
}
@Override
public void auditFinished(AuditEvent event) {
// No code by default, should be overridden only by demand at subclasses
}
@Override
public void fileFinished(AuditEvent event) {
// No code by default, should be overridden only by demand at subclasses
}
/**
* Returns the number of counted events since audit started.
* @return the number of counted events since audit started.
*/
public int getCount() {
return count;
}
}