logline.java

dspace 用j2ee架构的一个数字图书馆.开源程序

/*
 * LogLine.java
 *
 * Version: $Revision: 1.2 $
 *
 * Date: $Date: 2005/04/20 14:22:41 $
 *
 * Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
 * Institute of Technology.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the Hewlett-Packard Company nor the name of the
 * Massachusetts Institute of Technology nor the names of their
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package org.dspace.app.statistics;

import java.util.Date;

/**
 * This class represents a single log file line and the operations that can be
 * performed on it
 *
 * The components that it represents are: Date, Level, User, Action, and additional
 * Params
 * 
 * @author  Richard Jones
 */
public class LogLine
{
    /** the date of the log file line */
    private Date date = null;
    
    /** the level of the log line type */
    private String level = null;
    
    /** the user performing the logged action */
    private String user = null;
    
    /** the action being performed */
    private String action = null;
    
    /** the parameters associated with the line */
    private String params = null;
    
    /**
     * constructor to create new statistic
     *
     * @param   key     the key for the statistic
     * @param   value   the value for the statistic
     */
    LogLine(Date date, String level, String user, String action, String params)
    {
        this.date = date;
        this.level = level;
	this.user = user;
        this.action = action;
        this.params = params;
    }
    
    /** 
     * get the date of the log line
     *
     * @return      the date of this log line
     */
    public Date getDate()
    {
        return this.date;
    }
    
    
    /**
     * get the level of this log line
     *
     * @return      the level of the log line
     */
    public String getLevel()
    {
        return this.level;
    }
    
    
    /**
     * get the user performing the logged action
     *
     * @return      the user performing the logged action
     */
    public String getUser()
    {
        return this.user;
    }
    
    
    /**
     * get the action being performed
     *
     * @return      the logged action
     */
    public String getAction()
    {
        return this.action;
    }
    
    
    /**
     * get the parameters associated with the action
     *
     * @return      the parameters associated with the action
     */
    public String getParams()
    {
        return this.params;
    }
    
    
    /**
     * find out if this log file line is before the given date
     *
     * @param   date    the date to be compared to
     *
     * @return          true if the line is before the given date, false if not
     */
    public boolean beforeDate(Date date)
    {
        if (date != null)
        {
            if (date.compareTo(this.getDate()) >= 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        return false;
    }
    
    
    /**
     * find out if this log file line is after the given date
     *
     * @param   date    the date to be compared to
     *
     * @return          true if the line is after the given date, false if not
     */
    public boolean afterDate(Date date)
    {
        if (date != null)
        {
            if (date.compareTo(this.getDate()) <= 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        return false;
    }
    
    
    /**
     * find out if the log line is of the given level.  Levels are either
     * INFO, WARN or ERROR
     *
     * @param   level   the level we want to test for
     *
     * @return          true if the line is of the specified level, false if not
     */
    public boolean isLevel(String level)
    {
        if (this.getLevel().equals(level))
        {
            return true;
        }
        return false;
    }
    
    
    /**
     * find out if the log line is of the given action.  Actions are not 
     * directly constrained by the vocabulary, and any system module may define
     * any action name for its behaviour
     *
     * @param   action  the action we want to test for
     *
     * @return          true if the line is of the specified action, false if not
     */
    public boolean isAction(String action)
    {
        if (this.getAction().equals(action))
        {
            return true;
        }
        return false;
    }
 
}