Logback: the reliable, generic, fast and flexible logging framework.
Copyright (C) 1999-2015, QOS.ch. All rights reserved.
This program and the accompanying materials are dual-licensed under
either the terms of the Eclipse Public License v1.0 as published by
the Eclipse Foundation
  or (per the licensee's choosing)
under the terms of the GNU Lesser General Public License version 2.1
as published by the Free Software Foundation.
/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.core.spi;

import ch.qos.logback.core.helpers.CyclicBuffer;

import java.util.*;

CyclicBufferTracker tracks CyclicBuffer instances. 
Author:
Ceki Gülcü/**
 * CyclicBufferTracker tracks  {@link CyclicBuffer} instances.
 *
 * @author Ceki Gülcü
 */
public class CyclicBufferTracker<E> extends AbstractComponentTracker<CyclicBuffer<E>> {

    static final int DEFAULT_NUMBER_OF_BUFFERS = 64;

    static final int DEFAULT_BUFFER_SIZE = 256;
    int bufferSize = DEFAULT_BUFFER_SIZE;

    public CyclicBufferTracker() {
        super();
        setMaxComponents(DEFAULT_NUMBER_OF_BUFFERS);
    }

    public int getBufferSize() {
        return bufferSize;
    }

    public void setBufferSize(int bufferSize) {
        this.bufferSize = bufferSize;
    }

    @Override
    protected void processPriorToRemoval(CyclicBuffer<E> component) {
        component.clear();
    }

    @Override
    protected CyclicBuffer<E> buildComponent(String key) {
        return new CyclicBuffer<E>(bufferSize);
    }

    @Override
    protected boolean isComponentStale(CyclicBuffer<E> eCyclicBuffer) {
        return false;
    }

    // for testing purposes
    List<String> liveKeysAsOrderedList() {
        return new ArrayList<String>(liveMap.keySet());
    }

    List<String> lingererKeysAsOrderedList() {
        return new ArrayList<String>(lingerersMap.keySet());

    }

}