com.wabacus.system.task.DeleteTempFileTask.java Source code

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Here is the source code for com.wabacus.system.task.DeleteTempFileTask.java

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/* 
 * Copyright (C) 2010---2014 (wuweixing)<349446658@qq.com>
 * 
 * This file is part of Wabacus 
 * 
 * Wabacus 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.wabacus.system.task;

import java.io.File;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.wabacus.config.dataexport.DeleteDataExportTempFileTask;
import com.wabacus.util.Tools;

public class DeleteTempFileTask implements ITask {
    private final static Log log = LogFactory.getLog(DeleteTempFileTask.class);

    protected String id;

    protected String filepath;

    protected long lastExecuteMilSeconds;

    private long intervalMilSeconds;

    private long persistencePeriods;

    public DeleteTempFileTask() {
        lastExecuteMilSeconds = 0L;
    }

    public void setId(String id) {
        this.id = id;
    }

    public void setFilepath(String filepath) {
        this.filepath = filepath;
    }

    public void setLastExecuteMilSeconds(long lastExecuteMilSeconds) {
        this.lastExecuteMilSeconds = lastExecuteMilSeconds;
    }

    public void setIntervalMilSeconds(long intervalMilSeconds) {
        this.intervalMilSeconds = intervalMilSeconds;
    }

    public void setPersistencePeriods(long persistencePeriods) {
        this.persistencePeriods = persistencePeriods;
    }

    public void parseInterval(String deleteFilesInterval) {
        intervalMilSeconds = Long.MIN_VALUE;
        persistencePeriods = Long.MIN_VALUE;
        int idx = deleteFilesInterval.indexOf("|");
        if (!deleteFilesInterval.equals("") && idx > 0) {
            intervalMilSeconds = Long.parseLong(deleteFilesInterval.substring(0, idx).trim()) * 1000;
            persistencePeriods = Long.parseLong(deleteFilesInterval.substring(idx + 1).trim()) * 1000;
        }
        if (intervalMilSeconds <= 0)
            intervalMilSeconds = 300 * 1000L;//5
        if (persistencePeriods <= 0)
            persistencePeriods = 600 * 1000L;
    }

    public String getTaskId() {
        return this.id;
    }

    public boolean shouldExecute() {
        if (Tools.isEmpty(this.filepath))
            return false;
        return System.currentTimeMillis() - lastExecuteMilSeconds >= intervalMilSeconds;
    }

    public synchronized void execute() {
        lastExecuteMilSeconds = System.currentTimeMillis();
        if (Tools.isEmpty(this.filepath))
            return;
        File f = new File(this.filepath);
        if (!f.exists() || !f.isDirectory())
            return;
        File[] filesArr = f.listFiles();
        if (filesArr == null)
            return;
        for (int i = 0; i < filesArr.length; i++) {
            try {
                if (isShouldDeleteFile(filesArr[i].lastModified()))
                    filesArr[i].delete();
            } catch (Exception e) {
                log.error("" + filesArr[i].getAbsolutePath() + "", e);
            }
        }
    }

    protected boolean isShouldDeleteFile(long lastupdatetime) {
        return lastExecuteMilSeconds - lastupdatetime >= persistencePeriods;
    }

    public void destory() {
        if (Tools.isEmpty(this.filepath))
            return;
        File f = new File(this.filepath);
        if (f.exists() && f.isDirectory()) {
            File[] filesArr = f.listFiles();
            if (filesArr == null)
                return;
            for (int i = 0, len = filesArr.length; i < len; i++) {
                try {
                    filesArr[i].delete();
                } catch (Exception e) {
                    log.error("" + filesArr[i].getAbsolutePath() + "", e);
                }
            }
        }
    }

}