/*
Copyright 2012-2013, Polyvi Inc. (http://polyvi.github.io/openxface)
This program is distributed under the terms of the GNU General Public License.
This file is part of xFace.
xFace is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
xFace 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with xFace. If not, see <http://www.gnu.org/licenses/>.
*/
package com.polyvi.xface;
import java.io.File;
import java.io.IOException;
import android.content.Context;
import android.content.SharedPreferences;
import com.polyvi.xface.ams.XAMSComponent;
import com.polyvi.xface.ams.XAppList;
import com.polyvi.xface.ams.XIPreInstallListener;
import com.polyvi.xface.ams.XIPreInstallTask;
import com.polyvi.xface.ams.XPreinstalledAppBatchInstaller;
import com.polyvi.xface.app.XAppInfo;
import com.polyvi.xface.app.transferpolicy.XPreInstallAppsTransferPolicy;
import com.polyvi.xface.core.XConfiguration;
import com.polyvi.xface.util.XAppUtils;
import com.polyvi.xface.util.XConstant;
import com.polyvi.xface.util.XFileUtils;
import com.polyvi.xface.util.XLog;
import com.polyvi.xface.util.XStrings;
public class XSystemInitializer implements XSystemBootstrap,
XIPreInstallListener {
private static final String CLASS_NAME = XSystemInitializer.class.getName();
private static final String APK_LASTMODIFIED_TIME = "last_modify_time";
// 这里需要Activity，而不是Context，因为Context#getPackageResourcePath只在ApiLevel8以上支持
// 而Activity#getPackageResourcePath在api level1就开始支持，现在引擎支持ApiLevel7
// 的平台，故使用Activity
private XFaceMainActivity mActivity;
private boolean mApkUpdate;
final XAMSComponent mAms;
private XAppList mAppList;
public XSystemInitializer(XFaceMainActivity activity) {
mActivity = activity;
mAms = createAMSComponent();
}
@Override
public void onSuccess() {
mActivity.runOnUiThread(new Runnable() {
public void run() {
runStartApp();
}
});
}
@Override
public void onFailure() {
mActivity.runOnUiThread(new Runnable() {
public void run() {
mActivity.toast("Initialize System Failure.");
}
});
}
@Override
public void prepareWorkEnvironment() {
// 如果apk没有更新过且工作目录没有改变过 则不需要做任何准备环境的操作
mApkUpdate = apkUpdated();
if (!needPreInstall()) {
return;
}
saveLastModifiedTime();
// 生成一个.NoMedia 目录
XFileUtils.createNoMediaFileInWorkDir();
}
/**
* 获取startapp的app.xml文件路径
*
* @return
*/
private String getStartAppConfigPath() {
// 从配置文件中读取
return XConstant.PRE_INSTALL_SOURCE_ROOT
+ XConfiguration.getInstance().getStartAppId(mActivity)
+ File.separator + XConstant.APP_CONFIG_FILE_NAME;
}
@Override
public void boot() {
mActivity.initStartApp(this.getStartAppInfo());
Runnable callback = new Runnable() {
public void run() {
if (needPreInstall()) {
doPreInstall(mAms);
} else {
runStartApp();
}
}
};
new XStartAppDataInitiallizer(callback, mActivity).execute();
}
/**
* 运行startApp
*/
private void runStartApp() {
mActivity.runStartApp();
mAms.markPortal(mActivity.getStartApp());
// 后台转移预装应用
if(XConfiguration.getInstance().isAppTransferNeeded()){
new XPreInstallAppsTransferPolicy(mAppList, mActivity).transfer();
}
}
/**
* 读取startapp的app.xml并获取其应用信息
*
* @return appInfo
*/
private XAppInfo getStartAppInfo() {
XAppInfo startAppInfo = null;
try {
startAppInfo = XAppUtils.parseAppXml(mActivity.getAssets().open(
getStartAppConfigPath()));
startAppInfo.setSrcRoot(XConstant.ASSERT_PROTACAL
+ XConstant.PRE_INSTALL_SOURCE_ROOT
+ XConfiguration.getInstance().getStartAppId(mActivity));
} catch (IOException e) {
XLog.e(CLASS_NAME, "Parse app.xml error!");
e.printStackTrace();
} catch (NullPointerException e) {
XLog.e(CLASS_NAME, "app.xml Config Error.");
mActivity.toast(XStrings.getInstance().getString(
XStrings.APP_CONFIG_ERROR));
}
return startAppInfo;
}
/**
* 创建app management
*
* @param runtime
* @return
*/
private XAMSComponent createAMSComponent() {
XAMSComponent amsCom = new XAMSComponent(mActivity,
mActivity.getAppFactory());
mAppList = amsCom.getAppList();
return amsCom;
}
/**
* 是否需要预装
*
* @return
*/
private boolean needPreInstall() {
// 如果apk被更新或者程序的工作目录改变了 都需要重新预装
// 程序工作目录改变了有可能是由于sdcard的插拔导致 这种情况会导致
// 用户在程序运行过程生成的部分数据可能被丢失 但是引擎需要保证预装的程序运行正确
return mApkUpdate
|| XConfiguration.getInstance().isWorkDirectoryChanged();
}
/**
* 开始预装
*
* @param runtime
*/
private void doPreInstall(XAMSComponent ams) {
XIPreInstallTask task = createPreInstallTask(ams);
task.run();
}
/**
* 创建预装任务
*
* @param ams
* @return
*/
private XIPreInstallTask createPreInstallTask(XAMSComponent ams) {
return new XPreinstalledAppBatchInstaller(mActivity, ams, this);
}
/**
* 当前程序是否首次安装或者覆盖安装过
*/
private boolean apkUpdated() {
String apkPath = mActivity.getPackageResourcePath();
File sourceFile = new File(apkPath);
String realLastModifiedTime = Long.toString(sourceFile.lastModified());
String savedLastModifiedTime = getSavedLastModifiedTime();
return !realLastModifiedTime.equals(savedLastModifiedTime);
}
/**
* 获取上次存储到配置文件中的apk最后修改时间
*
* @return
*/
private String getSavedLastModifiedTime() {
SharedPreferences pref = mActivity.getSharedPreferences(
XConstant.PREF_SETTING_FILE_NAME, Context.MODE_WORLD_READABLE
| Context.MODE_WORLD_WRITEABLE);
String tempTime = pref.getString(APK_LASTMODIFIED_TIME, "");
return tempTime;
}
/**
* 将当前程序的最后修改时间存到配置文件中
*/
private void saveLastModifiedTime() {
String apkPath = mActivity.getPackageResourcePath();
File sourceFile = new File(apkPath);
String realLastModifiedTime = Long.toString(sourceFile.lastModified());
SharedPreferences pref = mActivity.getSharedPreferences(
XConstant.PREF_SETTING_FILE_NAME, Context.MODE_WORLD_READABLE
| Context.MODE_WORLD_WRITEABLE);
SharedPreferences.Editor editor = pref.edit();
editor.putString(APK_LASTMODIFIED_TIME, realLastModifiedTime);
editor.commit();
}
}