com.hangum.tadpole.applicaion.start/src/com/hangum/tadpole/application/start/update/checker/NewVersionChecker.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 hangum.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the GNU Lesser Public License v2.1
   5  * which accompanies this distribution, and is available at
   6  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
   7  *
   8  * Contributors:
   9  *     hangum - initial API and implementation
  10  ******************************************************************************/
  11 package com.hangum.tadpole.application.start.update.checker;
  12
  13 import java.io.InputStream;
  14 import java.net.URL;
  15
  16 import org.apache.commons.io.IOUtils;
  17 import org.apache.commons.lang.StringUtils;
  18 import org.apache.log4j.Logger;
  19
  20 import com.google.gson.Gson;
  21 import com.hangum.tadpole.commons.libs.core.define.SystemDefine;
  22
  23 /**
  24  * Update checker
  25  *
  26  * @author hangum
  27  *
  28  */
  29 public class NewVersionChecker {
  30         private static final Logger logger = Logger.getLogger(NewVersionChecker.class);
  31         public static final String CHECK_URI = "https://raw.githubusercontent.com/hangum/TadpoleForDBTools/gh-pages/versionInfo.json";
  32
  33         private long lastCheckTimeMillis = 0l;
  34         private NewVersionObject newVersionObj;
  35
  36         public static NewVersionChecker instance = new NewVersionChecker();
  37         private NewVersionChecker() {}
  38
  39         public static synchronized NewVersionChecker getInstance() {
  40                 return instance;
  41         }
  42
  43         /**
  44          * new version checker
  45          * @return
  46          */
  47         public boolean check() {
  48                 if(lastCheckTimeMillis == 0l) lastCheckTimeMillis = System.currentTimeMillis();
  49
  50                 // 60분에 한번씩 check 하여 값을 돌려준다.
  51                 long currentTimeMillis = System.currentTimeMillis();
  52                 long diffTimeMills = (currentTimeMillis - lastCheckTimeMillis) / 1000l;
  53
  54                 if(logger.isDebugEnabled()) {
  55                         logger.debug("currentTimeMillis mills " + currentTimeMillis);
  56                         logger.debug("lastCheckTimeMillis mills " + lastCheckTimeMillis);
  57                         logger.debug("diff mills " + diffTimeMills);
  58                 }
  59
  60                 // 24시간에 한번씩 검사한다.
  61                 if(diffTimeMills > (60 * 60 * 24) || newVersionObj == null) {
  62                         lastCheckTimeMillis = currentTimeMillis;
  63                         return getVersionInfoData();
  64                 }
  65                 return false;
  66         }
  67
  68         /**
  69          * get version info data
  70          *
  71          * @return
  72          */
  73         public boolean getVersionInfoData() {
  74                 InputStream is = null;
  75                 try {
  76                         is = new URL(CHECK_URI).openConnection().getInputStream();
  77                         String strJson = IOUtils.toString(is);
  78                         if(logger.isDebugEnabled()) {
  79                                 logger.debug("==[start]===================================");
  80                                 logger.debug(strJson);
  81                                 logger.debug("==[end]===================================");
  82                         }
  83                         Gson gson = new Gson();
  84                         newVersionObj = gson.fromJson(strJson, NewVersionObject.class);
  85                         if(newVersionObj == null) return false;
  86
  87                         String[] arryCurVer = StringUtils.split(SystemDefine.DBHUB_MAJOR_VERSION, ".");
  88                         String[] arryNewVer = StringUtils.split(newVersionObj.getMajorVer(), ".");
  89                         for (int i=0; i<arryCurVer.length; i++) {
  90                                 if(Integer.parseInt(arryNewVer[i]) > Integer.parseInt(arryCurVer[i])) {
  91                                         return true;
  92                                 }
  93                         }
  94
  95                 } catch (Exception e) {
  96                         logger.error(String.format("New version checkerer %s.", e.getMessage()));
  97                 } finally {
  98                         if(is != null) {
  99                                 try {
 100 //                                      IOUtils.toString(is);
 101                                         IOUtils.closeQuietly(is);
 102                                 }
 103                                 catch(Exception e) {
 104                                         //igoner excetpion
 105                                 }
 106                         }
 107                 }
 108
 109                 return false;
 110         }
 111
 112         public NewVersionObject getNewVersionObj() {
 113                 return newVersionObj;
 114         }
 115
 116 }