org.beangle.security.web.access.log.CachedResourceAccessor.java Source code

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Here is the source code for org.beangle.security.web.access.log.CachedResourceAccessor.java

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/* Copyright c 2005-2012.
 * Licensed under GNU  LESSER General Public License, Version 3.
 * http://www.gnu.org/licenses
 */
package org.beangle.security.web.access.log;

import java.util.Date;
import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.Validate;
import org.beangle.commons.collection.CollectUtils;
import org.beangle.security.core.session.impl.AccessLog;
import org.springframework.beans.factory.InitializingBean;

public class CachedResourceAccessor extends DefaultResourceAccessor implements InitializingBean {

    private List<AccessLog> accessLogs = CollectUtils.newArrayList();

    // 3000 milliseconds
    private long minDuration = 3000;

    // default 500
    private int cacheSize = 500;

    public void afterPropertiesSet() throws Exception {
        Validate.isTrue(minDuration > 0, "minDuration must greater then 0");
        Validate.isTrue(cacheSize > 100, "cacheSize should greate then 100");
    }

    public AccessLog beginAccess(HttpServletRequest request, Date date) {
        AccessLog accessLog = buildLog(request);
        accessLog.setBeginAt(date);
        synchronized (accessLogs) {
            accessLogs.add(accessLog);
            if (accessLogs.size() >= cacheSize) {
                shrink(accessLogs);
                if (accessLogs.size() >= cacheSize) {
                    flush(accessLogs);
                }
            }
        }
        return accessLog;
    }

    public void endAccess(AccessLog log, Date date) {
        log.setEndAt(date);
    }

    public void finish() {
        if (!accessLogs.isEmpty()) {
            flush(accessLogs);
        }
    }

    public void start() {

    }

    public List<AccessLog> getAccessLogs() {
        return accessLogs;
    }

    protected void shrink(List<AccessLog> accessLogs) {
        for (Iterator<AccessLog> iterator = accessLogs.iterator(); iterator.hasNext();) {
            AccessLog accessLog = (AccessLog) iterator.next();
            if (accessLog.getDuration() < minDuration) {
                iterator.remove();
            }
        }
    }

    protected void flush(List<AccessLog> accessLogs) {
        for (final AccessLog accessLog : accessLogs) {
            logger.info(accessLog.toString());
        }
        accessLogs.clear();
    }

    public Long getMinDuration() {
        return minDuration;
    }

    public void setMinDuration(Long minDuration) {
        this.minDuration = minDuration;
    }

    public Integer getCacheSize() {
        return cacheSize;
    }

    public void setCacheSize(Integer cacheSize) {
        this.cacheSize = cacheSize;
    }
}