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• Error when installing AppFabric 1.1 on Server 2012 64bit

  - by no9

  I am trying to install AppFabric 1.1 on 64bit Windows Server 2012 R2. All updates have been installed and updates are turned ON .NET Framework 4.0 is installed .NET Framework 3.5 is installed IIS is installed Windows Powershell 3.0 should already be included in Server 2012 I am getting the following error: 2014-03-21 11:02:34, Information Setup ===== Logging started: 2014-03-21 11:02:34+01:00 ===== 2014-03-21 11:02:34, Information Setup File: c:\6c4006b0b3f6dee1bf616f1967\setup.exe 2014-03-21 11:02:34, Information Setup InternalName: Setup.exe 2014-03-21 11:02:34, Information Setup OriginalFilename: Setup.exe 2014-03-21 11:02:34, Information Setup FileVersion: 1.1.2106.32 2014-03-21 11:02:34, Information Setup FileDescription: Setup.exe 2014-03-21 11:02:34, Information Setup Product: Microsoft(R) Windows(R) Server AppFabric 2014-03-21 11:02:34, Information Setup ProductVersion: 1.1.2106.32 2014-03-21 11:02:34, Information Setup Debug: False 2014-03-21 11:02:34, Information Setup Patched: False 2014-03-21 11:02:34, Information Setup PreRelease: False 2014-03-21 11:02:34, Information Setup PrivateBuild: False 2014-03-21 11:02:34, Information Setup SpecialBuild: False 2014-03-21 11:02:34, Information Setup Language: Language Neutral 2014-03-21 11:02:34, Information Setup 2014-03-21 11:02:34, Information Setup OS Name: Windows Server 2012 R2 Standard 2014-03-21 11:02:34, Information Setup OS Edition: ServerStandard 2014-03-21 11:02:34, Information Setup OSVersion: Microsoft Windows NT 6.2.9200.0 2014-03-21 11:02:34, Information Setup CurrentCulture: sl-SI 2014-03-21 11:02:34, Information Setup Processor Architecture: AMD64 2014-03-21 11:02:34, Information Setup Event Registration Source : AppFabric_Setup 2014-03-21 11:02:34, Information Setup 2014-03-21 11:02:34, Information Setup Microsoft.ApplicationServer.Setup.Upgrade.V1UpgradeSetupModule : Initiating V1.0 Upgrade module. 2014-03-21 11:02:34, Information Setup Microsoft.ApplicationServer.Setup.Upgrade.V1UpgradeSetupModule : V1.0 is not installed. 2014-03-21 11:02:54, Information Setup Microsoft.ApplicationServer.Setup.Upgrade.V1UpgradeSetupModule : Initiating V1 Upgrade pre-install. 2014-03-21 11:02:54, Information Setup Microsoft.ApplicationServer.Setup.Upgrade.V1UpgradeSetupModule : V1.0 is not installed, not taking backup. 2014-03-21 11:02:55, Information Setup Executing C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe with commandline -iru. 2014-03-21 11:02:55, Information Setup Return code from aspnet_regiis.exe is 0 2014-03-21 11:02:55, Information Setup Process.Start: C:\Windows\system32\msiexec.exe /quiet /norestart /i "c:\6c4006b0b3f6dee1bf616f1967\Microsoft CCR and DSS Runtime 2008 R3.msi" /l*vx "C:\Users\Administrator\AppData\Local\Temp\AppServerSetup1_1(2014-03-21 11-02-55).log" 2014-03-21 11:02:57, Information Setup Process.ExitCode: 0x00000000 2014-03-21 11:02:57, Information Setup Windows features successfully enabled. 2014-03-21 11:02:57, Information Setup Process.Start: C:\Windows\system32\msiexec.exe /quiet /norestart /i "c:\6c4006b0b3f6dee1bf616f1967\Packages\AppFabric-1.1-for-Windows-Server-64.msi" ADDDEFAULT=Worker,WorkerAdmin,CacheService,CacheAdmin,Setup /l*vx "C:\Users\Administrator\AppData\Local\Temp\AppServerSetup1_1(2014-03-21 11-02-57).log" LOGFILE="C:\Users\Administrator\AppData\Local\Temp\AppServerSetup1_1_CustomActions(2014-03-21 11-02-57).log" INSTALLDIR="C:\Program Files\AppFabric 1.1 for Windows Server" LANGID=en-US 2014-03-21 11:03:45, Information Setup Process.ExitCode: 0x00000643 2014-03-21 11:03:45, Error Setup AppFabric installation failed because installer MSI returned with error code : 1603 2014-03-21 11:03:45, Error Setup 2014-03-21 11:03:45, Error Setup AppFabric installation failed because installer MSI returned with error code : 1603 2014-03-21 11:03:45, Error Setup 2014-03-21 11:03:45, Information Setup Microsoft.ApplicationServer.Setup.Core.SetupException: AppFabric installation failed because installer MSI returned with error code : 1603 2014-03-21 11:03:45, Information Setup at Microsoft.ApplicationServer.Setup.Installer.WindowsInstallerProxy.GenerateAndThrowSetupException(Int32 exitCode, LogEventSource logEventSource) 2014-03-21 11:03:45, Information Setup at Microsoft.ApplicationServer.Setup.Installer.WindowsInstallerProxy.Invoke(LogEventSource logEventSource, InstallMode installMode, String packageIdentity, List`1 updateList, List`1 customArguments) 2014-03-21 11:03:45, Information Setup at Microsoft.ApplicationServer.Setup.Installer.MsiInstaller.InstallSelectedFeatures() 2014-03-21 11:03:45, Information Setup at Microsoft.ApplicationServer.Setup.Installer.MsiInstaller.Install() 2014-03-21 11:03:45, Information Setup at Microsoft.ApplicationServer.Setup.Client.ProgressPage.StartAction() 2014-03-21 11:03:45, Information Setup 2014-03-21 11:03:45, Information Setup === Summary of Actions === 2014-03-21 11:03:45, Information Setup Required Windows components : Completed Successfully 2014-03-21 11:03:45, Information Setup IIS Management Console : Completed Successfully 2014-03-21 11:03:45, Information Setup Microsoft CCR and DSS Runtime 2008 R3 : Completed Successfully 2014-03-21 11:03:45, Information Setup AppFabric 1.1 for Windows Server : Failed 2014-03-21 11:03:45, Information Setup Hosting Services : Failed 2014-03-21 11:03:45, Information Setup Caching Services : Failed 2014-03-21 11:03:45, Information Setup Hosting Administration : Failed 2014-03-21 11:03:45, Information Setup Cache Administration : Failed 2014-03-21 11:03:45, Information Setup Microsoft Update : Skipped 2014-03-21 11:03:45, Information Setup Microsoft Update : Skipped 2014-03-21 11:03:45, Information Setup 2014-03-21 11:03:45, Information Setup ===== Logging stopped: 2014-03-21 11:03:45+01:00 ===== I have tried this solution but no success: http://stackoverflow.com/questions/11205927/appfabric-installation-failed-because-installer-msi-returned-with-error-code-1 My system enviroment variable PSModulesPath has this value: C:\Windows\System32\WindowsPowerShell\v1.0\Modules I have also followed this link with no success: http://jefferytay.wordpress.com/2013/12/11/installing-appfabric-on-windows-server-2012/ Any help would be greatly appreciated !

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• .htaccess template, suggestions needed.

  - by purpler

  I compiled myself a .htaccess template and would like to know whether the caching and compressions is set up right, constructive suggestions and critics needed. # Defaults AddDefaultCharset UTF-8 DefaultLanguage en-US FileETag None Header unset ETag ServerSignature Off SetEnv TZ Europe/Belgrade # Rewrites Options +FollowSymLinks RewriteEngine On RewriteBase / # Redirect to WWW RewriteCond %{HTTP_HOST} ^serpentineseo.com RewriteRule (.*) http://www.serpentineseo.com/$1 [R=301,L] # Redirect index to root RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /.*index\.html\ HTTP/ RewriteRule ^(.*)index\.html$ /$1 [R=301,L] # Cache media files: ExpiresActive On ExpiresDefault A0 # Month <filesMatch "\.(gif|jpg|jpeg|png|ico|swf|js)$"> Header set Cache-Control "max-age=2592000, public" </filesMatch> # Week <FilesMatch "\.(css|pdf)$"> Header set Cache-Control "max-age=604800" </FilesMatch> # 10 Min <FilesMatch "\.(html|htm|txt)$"> Header set Cache-Control "max-age=600" </FilesMatch> # Do not cache <FilesMatch "\.(pl|php|cgi|spl|scgi|fcgi)$"> Header unset Cache-Control </FilesMatch> # Compress output <IfModule mod_deflate.c> <FilesMatch "\.(html|js|css)$"> SetOutputFilter DEFLATE </FilesMatch> </IfModule> # Error Documents ErrorDocument 206 /error/206.html ErrorDocument 401 /error/401.html ErrorDocument 403 /error/403.html ErrorDocument 404 /error/404.html ErrorDocument 500 /error/500.html # Prevent hotlinking RewriteCond %{HTTP_REFERER} !^$ RewriteCond %{HTTP_REFERER} !^http://(www\.)?serpentineseo.com/.*$ [NC] RewriteRule \.(gif|jpg|png)$ http://www.serpentineseo.com/images/angryman.png [R,L] # Prevent offline browsers RewriteCond %{HTTP_USER_AGENT} ^BlackWidow [OR] RewriteCond %{HTTP_USER_AGENT} ^Bot\ mailto:[email protected] [OR] RewriteCond %{HTTP_USER_AGENT} ^ChinaClaw [OR] RewriteCond %{HTTP_USER_AGENT} ^Custo [OR] RewriteCond %{HTTP_USER_AGENT} ^DISCo [OR] RewriteCond %{HTTP_USER_AGENT} ^Download\ Demon [OR] RewriteCond %{HTTP_USER_AGENT} ^eCatch [OR] RewriteCond %{HTTP_USER_AGENT} ^EirGrabber [OR] RewriteCond %{HTTP_USER_AGENT} ^EmailSiphon [OR] RewriteCond %{HTTP_USER_AGENT} ^EmailWolf [OR] RewriteCond %{HTTP_USER_AGENT} ^Express\ WebPictures [OR] RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro [OR] RewriteCond %{HTTP_USER_AGENT} ^EyeNetIE [OR] RewriteCond %{HTTP_USER_AGENT} ^FlashGet [OR] RewriteCond %{HTTP_USER_AGENT} ^GetRight [OR] RewriteCond %{HTTP_USER_AGENT} ^GetWeb! [OR] RewriteCond %{HTTP_USER_AGENT} ^Go!Zilla [OR] RewriteCond %{HTTP_USER_AGENT} ^Go-Ahead-Got-It [OR] RewriteCond %{HTTP_USER_AGENT} ^GrabNet [OR] RewriteCond %{HTTP_USER_AGENT} ^Grafula [OR] RewriteCond %{HTTP_USER_AGENT} ^HMView [OR] RewriteCond %{HTTP_USER_AGENT} HTTrack [NC,OR] RewriteCond %{HTTP_USER_AGENT} ^Image\ Stripper [OR] RewriteCond %{HTTP_USER_AGENT} ^Image\ Sucker [OR] RewriteCond %{HTTP_USER_AGENT} Indy\ Library [NC,OR] RewriteCond %{HTTP_USER_AGENT} ^InterGET [OR] RewriteCond %{HTTP_USER_AGENT} ^Internet\ Ninja [OR] RewriteCond %{HTTP_USER_AGENT} ^JetCar [OR] RewriteCond %{HTTP_USER_AGENT} ^JOC\ Web\ Spider [OR] RewriteCond %{HTTP_USER_AGENT} ^larbin [OR] RewriteCond %{HTTP_USER_AGENT} ^LeechFTP [OR] RewriteCond %{HTTP_USER_AGENT} ^Mass\ Downloader [OR] RewriteCond %{HTTP_USER_AGENT} ^MIDown\ tool [OR] RewriteCond %{HTTP_USER_AGENT} ^Mister\ PiX [OR] RewriteCond %{HTTP_USER_AGENT} ^Navroad [OR] RewriteCond %{HTTP_USER_AGENT} ^NearSite [OR] RewriteCond %{HTTP_USER_AGENT} ^NetAnts [OR] RewriteCond %{HTTP_USER_AGENT} ^NetSpider [OR] RewriteCond %{HTTP_USER_AGENT} ^Net\ Vampire [OR] RewriteCond %{HTTP_USER_AGENT} ^NetZIP [OR] RewriteCond %{HTTP_USER_AGENT} ^Octopus [OR] RewriteCond %{HTTP_USER_AGENT} ^Offline\ Explorer [OR] RewriteCond %{HTTP_USER_AGENT} ^Offline\ Navigator [OR] RewriteCond %{HTTP_USER_AGENT} ^PageGrabber [OR] RewriteCond %{HTTP_USER_AGENT} ^Papa\ Foto [OR] RewriteCond %{HTTP_USER_AGENT} ^pavuk [OR] RewriteCond %{HTTP_USER_AGENT} ^pcBrowser [OR] RewriteCond %{HTTP_USER_AGENT} ^RealDownload [OR] RewriteCond %{HTTP_USER_AGENT} ^ReGet [OR] RewriteCond %{HTTP_USER_AGENT} ^SiteSnagger [OR] RewriteCond %{HTTP_USER_AGENT} ^SmartDownload [OR] RewriteCond %{HTTP_USER_AGENT} ^SuperBot [OR] RewriteCond %{HTTP_USER_AGENT} ^SuperHTTP [OR] RewriteCond %{HTTP_USER_AGENT} ^Surfbot [OR] RewriteCond %{HTTP_USER_AGENT} ^tAkeOut [OR] RewriteCond %{HTTP_USER_AGENT} ^Teleport\ Pro [OR] RewriteCond %{HTTP_USER_AGENT} ^VoidEYE [OR] RewriteCond %{HTTP_USER_AGENT} ^Web\ Image\ Collector [OR] RewriteCond %{HTTP_USER_AGENT} ^Web\ Sucker [OR] RewriteCond %{HTTP_USER_AGENT} ^WebAuto [OR] RewriteCond %{HTTP_USER_AGENT} ^WebCopier [OR] RewriteCond %{HTTP_USER_AGENT} ^WebFetch [OR] RewriteCond %{HTTP_USER_AGENT} ^WebGo\ IS [OR] RewriteCond %{HTTP_USER_AGENT} ^WebLeacher [OR] RewriteCond %{HTTP_USER_AGENT} ^WebReaper [OR] RewriteCond %{HTTP_USER_AGENT} ^WebSauger [OR] RewriteCond %{HTTP_USER_AGENT} ^Website\ eXtractor [OR] RewriteCond %{HTTP_USER_AGENT} ^Website\ Quester [OR] RewriteCond %{HTTP_USER_AGENT} ^WebStripper [OR] RewriteCond %{HTTP_USER_AGENT} ^WebWhacker [OR] RewriteCond %{HTTP_USER_AGENT} ^WebZIP [OR] RewriteCond %{HTTP_USER_AGENT} ^Wget [OR] RewriteCond %{HTTP_USER_AGENT} ^Widow [OR] RewriteCond %{HTTP_USER_AGENT} ^WWWOFFLE [OR] RewriteCond %{HTTP_USER_AGENT} ^Xaldon\ WebSpider [OR] RewriteCond %{HTTP_USER_AGENT} ^Zeus RewriteRule ^.*$ http://www.google.com [R,L] # Protect against DOS attacks by limiting file upload size LimitRequestBody 10240000 # Deny access to sensitive files <FilesMatch "\.(htaccess|psd|log)$"> Order Allow,Deny Deny from all </FilesMatch>

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• Android Actionbar Tabs + Fragments + Service

  - by Vladimir

  So, I have 3 problems with my code: 1) I want that each tab saves its state. So that a TextView shows changed text if it was changed. 2) if I go to Tab2 then to Tab1 I can't see the content of the fragments. Only if I touch on the already selected tab, it shows me the content 3) I can't correctly connect/bind and unbind service to Fragment Text must be changed from Service. Please help, I don't know how I realize my intent. MyActivity.java package com.example.tabs; import android.app.ActionBar; import android.app.ActionBar.Tab; import android.app.Activity; import android.app.ActivityManager; import android.app.ActivityManager.RunningServiceInfo; import android.app.Fragment; import android.app.FragmentTransaction; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.content.SharedPreferences; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Message; public class MyActivity extends Activity { private static String ACTION_BAR_INDEX = "ACTION_BAR_INDEX"; private Tab tTab1; private Tab tTab2; private static MyService.MyBinder myBinder; private static Intent myServiceIntent; private static MyService myService; private TabListener<Tab1> tab1Listener; private TabListener<Tab2> tab2Listener; private static ServiceConnection myConnection = new ServiceConnection() { public void onServiceConnected(ComponentName name, IBinder binder) { myBinder = (MyService.MyBinder) binder; myService = myBinder.getService(); myBinder.setCallbackHandler(myServiceHandler); } public void onServiceDisconnected(ComponentName name) { myService = null; myBinder = null; } }; /** Callbackhandler. */ private static Handler myServiceHandler = new Handler() { public void handleMessage(Message message) { super.handleMessage(message); Bundle bundle = message.getData(); if (bundle != null) { String text = bundle.getString("Text1", ""); if (!text.equals("")) { } } } }; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); myServiceIntent = new Intent(this, MyService.class); bindService(myServiceIntent, myConnection, Context.BIND_AUTO_CREATE); if (!isServiceRunning()) { startService(myServiceIntent); } final ActionBar actionBar = getActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); actionBar.setDisplayShowTitleEnabled(false); tTab1 = actionBar.newTab(); tab1Listener = new TabListener<Tab1>(this, R.id.fl_main, Tab1.class); tTab1.setTag("Tab_1"); tTab1.setText("Tab_1"); tTab1.setTabListener(tab1Listener); tTab2 = actionBar.newTab(); tab2Listener = new TabListener<Tab2>(this, R.id.fl_main, Tab2.class); tTab2.setTag("Tab_2"); tTab2.setText("Tab_2"); tTab2.setTabListener(tab2Listener); actionBar.addTab(tTab1, 0); actionBar.addTab(tTab2, 1); } @Override public void onResume() { super.onResume(); SharedPreferences sp = getPreferences(Activity.MODE_PRIVATE); int actionBarIndex = sp.getInt(ACTION_BAR_INDEX, 0); getActionBar().setSelectedNavigationItem(actionBarIndex); } protected void onSaveInstanceState(Bundle outState) { // Save the current Action Bar tab selection int actionBarIndex = getActionBar().getSelectedTab().getPosition(); SharedPreferences.Editor editor = getPreferences(Activity.MODE_PRIVATE).edit(); editor.putInt(ACTION_BAR_INDEX, actionBarIndex); editor.apply(); // Detach each of the Fragments FragmentTransaction ft = getFragmentManager().beginTransaction(); if (tab2Listener.fragment != null) { ft.detach(tab2Listener.fragment); } if (tab1Listener.fragment != null) { ft.detach(tab1Listener.fragment); } ft.commit(); super.onSaveInstanceState(outState); } protected void onRestoreInstanceState(Bundle savedInstanceState) { // Find the recreated Fragments and assign them to their associated Tab // Listeners. tab1Listener.fragment = getFragmentManager().findFragmentByTag(Tab1.class.getName()); tab2Listener.fragment = getFragmentManager().findFragmentByTag(Tab2.class.getName()); // Restore the previous Action Bar tab selection. SharedPreferences sp = getPreferences(Activity.MODE_PRIVATE); int actionBarIndex = sp.getInt(ACTION_BAR_INDEX, 0); getActionBar().setSelectedNavigationItem(actionBarIndex); super.onRestoreInstanceState(savedInstanceState); } public boolean isServiceRunning() { ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) { if (MyService.class.getName().equals(service.service.getClassName())) { return true; } } return false; } @Override protected void onDestroy() { super.onDestroy(); unbindService(myConnection); stopService(myServiceIntent); } public static class TabListener<T extends Fragment> implements ActionBar.TabListener { private Fragment fragment; private Activity activity; private Class<T> fragmentClass; private int fragmentContainer; public TabListener(Activity activity, int fragmentContainer, Class<T> fragmentClass) { this.activity = activity; this.fragmentContainer = fragmentContainer; this.fragmentClass = fragmentClass; } public void onTabReselected(Tab tab, FragmentTransaction ft) { if (fragment != null) { ft.attach(fragment); } } public void onTabSelected(Tab tab, FragmentTransaction ft) { if (fragment == null) { String fragmentName = fragmentClass.getName(); fragment = Fragment.instantiate(activity, fragmentName); ft.add(fragmentContainer, fragment, fragmentName); } else { ft.detach(fragment); } } public void onTabUnselected(Tab tab, FragmentTransaction ft) { if (fragment != null) { ft.detach(fragment); } } } } MyService.java package com.example.tabs; import android.app.Service; import android.content.Intent; import android.os.Binder; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Message; public class MyService extends Service { private final IBinder myBinder = new MyBinder(); private static Handler myServiceHandler; public IBinder onBind(Intent intent) { return myBinder; } public int onStartCommand(Intent intent, int flags, int startId) { super.onStartCommand(intent, flags, startId); return START_STICKY; } public void sendMessage(String sText, int id) { Bundle bundle = new Bundle(); bundle.putString("Text" + id, sText); Message bundleMessage = new Message(); bundleMessage.setData(bundle); myServiceHandler.sendMessage(bundleMessage); } public class MyBinder extends Binder { public MyService getService() { return MyService.this; } public void setCallbackHandler(Handler myActivityHandler) { myServiceHandler = myActivityHandler; } public void removeCallbackHandler() { myServiceHandler = null; } } } Tab1.java package com.example.tabs; import android.app.Activity; import android.app.Fragment; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class Tab1 extends Fragment { public static String TAG = Tab1.class.getClass().getSimpleName(); private static TextView tvText; private EditText editText; private static MyService.MyBinder myBinder; private static Intent myServiceIntent; private static MyService myService; private static ServiceConnection myConnection = new ServiceConnection() { public void onServiceConnected(ComponentName name, IBinder binder) { myBinder = (MyService.MyBinder) binder; myService = myBinder.getService(); myBinder.setCallbackHandler(myServiceHandler); } public void onServiceDisconnected(ComponentName name) { myService = null; myBinder = null; } }; /** Callbackhandler. */ private static Handler myServiceHandler = new Handler() { public void handleMessage(Message message) { super.handleMessage(message); Bundle bundle = message.getData(); if (bundle != null) { String text = bundle.getString("Text1", ""); if (!text.equals("")) { tvText.setText(text); } } } }; public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.tab1, container, false); tvText = (TextView) view.findViewById(R.id.tv_tab1); editText = (EditText) view.findViewById(R.id.editText1); Button btn1 = (Button) view.findViewById(R.id.btn_change_text_1); btn1.setOnClickListener(new OnClickListener() { public void onClick(View v) { myService.sendMessage(String.valueOf(editText.getText()), 1); } }); return view; } @Override public void onAttach(Activity activity) { super.onAttach(activity); myServiceIntent = new Intent(activity, MyService.class); activity.bindService(myServiceIntent, myConnection, Context.BIND_AUTO_CREATE); } @Override public void onDetach() { super.onDetach(); getActivity().unbindService(myConnection); } } Tab2.java package com.example.tabs; import android.app.Activity; import android.app.Fragment; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class Tab2 extends Fragment { public static String TAG = Tab2.class.getClass().getSimpleName(); private static TextView tvText; private EditText editText; private static MyService.MyBinder myBinder; private static Intent myServiceIntent; private static MyService myService; private static ServiceConnection myConnection = new ServiceConnection() { public void onServiceConnected(ComponentName name, IBinder binder) { myBinder = (MyService.MyBinder) binder; myService = myBinder.getService(); myBinder.setCallbackHandler(myServiceHandler); } public void onServiceDisconnected(ComponentName name) { myService = null; myBinder = null; } }; /** Callbackhandler. */ private static Handler myServiceHandler = new Handler() { public void handleMessage(Message message) { super.handleMessage(message); Bundle bundle = message.getData(); if (bundle != null) { String text = bundle.getString("Text1", ""); if (!text.equals("")) { tvText.setText(text); } } } }; public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.tab2, container, false); tvText = (TextView) view.findViewById(R.id.tv_tab2); editText = (EditText) view.findViewById(R.id.editText2); Button btn2 = (Button) view.findViewById(R.id.btn_change_text_2); btn2.setOnClickListener(new OnClickListener() { public void onClick(View v) { myService.sendMessage(String.valueOf(editText.getText()), 2); } }); return view; } @Override public void onAttach(Activity activity) { super.onAttach(activity); myServiceIntent = new Intent(activity, MyService.class); activity.bindService(myServiceIntent, myConnection, Context.BIND_AUTO_CREATE); } @Override public void onDetach() { super.onDetach(); getActivity().unbindService(myConnection); } } main.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/main" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@android:color/black" android:orientation="vertical" > </LinearLayout> tab1.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center" android:gravity="center" android:orientation="vertical" > <EditText android:id="@+id/editText1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:ems="10" android:inputType="text" > <requestFocus /> </EditText> <Button android:id="@+id/btn_change_text_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:text="Change text" /> <TextView android:id="@+id/tv_tab1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TAB1\nTAB1\nTAB1" /> </LinearLayout> tab2.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center" android:gravity="center" android:orientation="vertical" > <EditText android:id="@+id/editText2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:ems="10" android:inputType="text" > <requestFocus /> </EditText> <Button android:id="@+id/btn_change_text_2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:text="Change text" /> <TextView android:id="@+id/tv_tab2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:text="TAB2\nTAB2\nTAB2" /> </LinearLayout> AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.tabs" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="15" android:targetSdkVersion="17" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="TabsPlusService" android:theme="@android:style/Theme.Holo" > <activity android:name="com.example.tabs.MyActivity" android:configChanges="orientation|keyboardHidden|screenSize" android:label="TabsPlusService" android:theme="@android:style/Theme.Holo" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <service android:name=".MyService" android:enabled="true" > </service> </application> </manifest>

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• How to invalidate nginx reverse proxy cache in front of other nginx servers?

  - by Olivier Lance

  I'm running a Proxmox server on a single IP address, that will dispatch HTTP requests to containers depending on the requested host. I am using nginx on the Proxmox side to listen to HTTP requests and I am using the proxy_pass directive in my different server blocks to dispatch requests according to the server_name. My containers run on Ubuntu and are also running a nginx instance. I'm having troubles with caching on a particular website that is fully static: nginx keeps on serving me stale content after files updates, until I: Clear /var/cache/nginx/ and restart nginx or set proxy_cache off for this server and reload the config Here's the detail of my configuration: On the server (proxmox): /etc/nginx/nginx.conf: user www-data; worker_processes 8; pid /var/run/nginx.pid; events { worker_connections 768; # multi_accept on; use epoll; } http { ## # Basic Settings ## sendfile on; #tcp_nopush on; tcp_nodelay on; #keepalive_timeout 65; types_hash_max_size 2048; server_tokens off; # server_names_hash_bucket_size 64; # server_name_in_redirect off; include /etc/nginx/mime.types; default_type application/octet-stream; client_body_buffer_size 1k; client_max_body_size 8m; large_client_header_buffers 1 1K; ignore_invalid_headers on; client_body_timeout 5; client_header_timeout 5; keepalive_timeout 5 5; send_timeout 5; server_name_in_redirect off; ## # Logging Settings ## access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; ## # Gzip Settings ## gzip on; gzip_disable "MSIE [1-6]\.(?!.*SV1)"; gzip_vary on; gzip_proxied any; gzip_comp_level 6; # gzip_buffers 16 8k; gzip_http_version 1.1; gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; limit_conn_zone $binary_remote_addr zone=gulag:1m; limit_conn gulag 50; ## # Virtual Host Configs ## include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } /etc/nginx/conf.d/proxy.conf: proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_hide_header X-Powered-By; proxy_intercept_errors on; proxy_buffering on; proxy_cache_key "$scheme://$host$request_uri"; proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=cache:10m inactive=7d max_size=700m; /etc/nginx/sites-available/my-domain.conf: server { listen 80; server_name .my-domain.com; access_log off; location / { proxy_pass http://my-domain.local:80/; proxy_cache cache; proxy_cache_valid 12h; expires 30d; proxy_cache_use_stale error timeout invalid_header updating; } } On the container (my-domain.local): nginx.conf: (everything is inside the main config file -- it's been done quickly...) user www-data; worker_processes 1; error_log logs/error.log; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; #tcp_nopush on; keepalive_timeout 65; gzip off; server { listen 80; server_name .my-domain.com; root /var/www; access_log logs/host.access.log; } } I've read many blog posts and answers before resolving to posting my own questions... most answers I can see suggest setting sendfile off; but that didn't work for me. I have tried many other things, double checked my settings and all seems fine. So I'm wondering whether I am not expecting nginx's cache to do something it's not meant to...? Basically, I thought that if one of my static files in my container was updated, the cache in my reverse proxy would be invalidated and my browser would get the new version of the file when it requests it... But I now have the sentiment I misunderstood many things. Of all things, I now wonder how nginx on the server can know about a file in the container has changed? I have seen a directive proxy_header_pass (or something alike), should I use this to let the nginx instance from the container somehow inform the one in Proxmox about updated files? Is this expectation just a dream, or can I do it with nginx on my current architecture?

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• Caching with AVPlayer and AVAssetExportSession

  - by tba

  I would like to cache progressive-download videos using AVPlayer. How can I save an AVPlayer's item to disk? I'm trying to use AVAssetExportSession on the player's currentItem (which is fully loaded). This code is giving me "AVAssetExportSessionStatusFailed (The operation could not be completed)" : AVAsset *mediaAsset = self.player.currentItem.asset; AVAssetExportSession *es = [[AVAssetExportSession alloc] initWithAsset:mediaAsset presetName:AVAssetExportPresetLowQuality]; NSString *outPath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"out.mp4"]; NSFileManager *fileManager = [NSFileManager defaultManager]; [fileManager removeItemAtPath:outPath error:NULL]; es.outputFileType = @"com.apple.quicktime-movie"; es.outputURL = [[[NSURL alloc] initFileURLWithPath:outPath] autorelease]; NSLog(@"exporting to %@",outPath); [es exportAsynchronouslyWithCompletionHandler:^{ NSString *status = @""; if( es.status == AVAssetExportSessionStatusUnknown ) status = @"AVAssetExportSessionStatusUnknown"; else if( es.status == AVAssetExportSessionStatusWaiting ) status = @"AVAssetExportSessionStatusWaiting"; else if( es.status == AVAssetExportSessionStatusExporting ) status = @"AVAssetExportSessionStatusExporting"; else if( es.status == AVAssetExportSessionStatusCompleted ) status = @"AVAssetExportSessionStatusCompleted"; else if( es.status == AVAssetExportSessionStatusFailed ) status = @"AVAssetExportSessionStatusFailed"; else if( es.status == AVAssetExportSessionStatusCancelled ) status = @"AVAssetExportSessionStatusCancelled"; NSLog(@"done exporting to %@ status %d = %@ (%@)",outPath,es.status, status,[[es error] localizedDescription]); }]; How can I export successfully? I'm looking into copying mediaAsset into an AVMutableComposition, but haven't had much luck with that either. Thanks! PS: Here are some questions from people trying to accomplish the same thing (but with MPMoviePlayerController): Cache Progressive downloaded content in MPMoviePlayerController Simultaneously stream and save a video? Caching videos to disk after successful preload by MPMoviePlayerController

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• WCF ChannelFactory caching

  - by Myles J

  I've just read this great article on WCF ChannelFactory caching by Wenlong Dong. My question is simply how can you actually prove that the ChannelFactory is in fact being cached between calls? I've followed the rules regarding the ClientBase’s constructors. We are using the following overloaded constructor on our object that inherits from ClientBase: ClientBase(string endpointConfigurationName, EndpointAddress remoteAddress); In the article mentioned above it is stated that: For these constructors, all arguments (including default ones) are in the following list: · InstanceContext callbackInstance · string endpointConfigurationName · EndpointAddress remoteAddress As long as these three arguments are the same when ClientBase is constructed, we can safely assume that the same ChannelFactory can be used. Fortunately, String and EndpointAddress types are immutable, i.e., we can make simple comparison to determine whether two arguments are the same. For InstanceContext, we can use Object reference comparison. The type EndpointTrait is thus used as the key of the MRU cache. To test the ChannelFactory cache theory we are checking the Hashcode in the ClientBase constructor e.g. var testHash = RuntimeHelpers.GetHashCode(base.ChannelFactory); The hash value is different between calls which makes us think that the ChannelFactory isn't actually cached. Any thoughts? Regards Myles

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• Implement System.Web.Caching.Cache Object in a controller to cache specific query

  - by Julien

  Hello World! I'm Julien and I have a question is it correct to implement my caching object like this in my controller : public class HomeController : BaseController { public static Cache cachingControl = new Cache(); ... And I Use it like this : public ActionResult Home() { IndexViewData view = new IndexViewData(); view.UserId = UserId; if (cachingControl.Get("viewHome") != null) { view = (IndexViewData)cachingControl.Get("viewHome"); } else { view.allAdsList = AllAds(5000, 0); if (Request.QueryString["voirTous"] != null) view.loadGeneral(true); else view.loadGeneral(false); cachingControl.Insert("viewHome", view); } view.adsList = SetupSearch(5, false, 0); return View(view); } But When I Call this line : if (cachingControl.Get("viewHome") != null) { They trow me the error NullErrorException But I know it can be null this is why i'm put this condition to Do you have an alternative or a tips for me thank you! P.S.: I Know that the code is weird :P but I must to support it ... Julien

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• Google App Engine - Caching generated HTML

  - by Alexander

  I have written a Google App Engine application that programatically generates a bunch of HTML code that is really the same output for each user who logs into my system, and I know that this is going to be in-efficient when the code goes into production. So, I am trying to figure out the best way to cache the generated pages. The most probable option is to generate the pages and write them into the database, and then check the time of the database put operation for a given page against the time that the code was last updated. Then, if the code is newer than the last put to the database (for a particular HTML request), new HTML will be generated and served, and cached to the database. If the code is older than the last put to the database, then I will just get the HTML direct from the database and serve it (therefore avoiding all the CPU wastage of generating the HTML). I am not only looking to minimize load times, but to minimize CPU usage. However, one issue that I am having is that I can't figure out how to programatically check when the version of code uploaded to the app engine was updated. I am open to any suggestions on this approach, or other approaches for caching generated html. Note that while memcache could help in this situation, I believe that it is not the final solution since I really only need to re-generate html when the code is updated (as opposed to every time the memcache expires). Kind Regards, and thank you in advance for any suggestions you may be able to offer. -Alex

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• Creating an API for an ASP.NET MVC site with rate-limiting and caching

  - by Maxim Z.

  Recently, I've been very interested in APIs, specifically in how to create them. For the purpose of this question, let's say that I have created an ASP.NET MVC site that has some data on it; I want to create an API for this site. I have multiple questions about this: What type of API should I create? I know that REST and oData APIs are very popular. What are the pros and cons of each, and how do I implement them? From what I understand so far, REST APIs with ASP.NET MVC would just be actions that return JSON instead of Views, and oData APIs are documented here. How do I handle writing? Reading from both API types is quite simple. However, writing is more complex. With the REST approach, I understand that I can use HTTP POST, but how do I implement authentication? Also, with oData, how does writing work in the first place? How do I implement basic rate-limiting and caching? From my past experience with APIs, these are very important things, so that the API server isn't overloaded. What's the best way to set these two things up? Can I get some sample code? Any code that relates to C# and ASP.NET MVC would be appreciated. Thanks in advance! While this is a broad question, I think it's not too broad... :) There are some similar questions to this one that are about APIs, but I haven't found any that directly address the questions I outlined here.

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• ASP.NET output caching - dynamically update dependencies

  - by ColinE

  Hi All, I have an ASP.NET application which requires output caching. I need to invalidate the cached items when the data returned from a web service changes, so a simple duration is not good enough. I have been doing a bit of reading about cache dependencies and think I have the right idea. It looks like I will need to create a cache dependency to my web service. To associate the page output with this dependency I think I should use the following method: Response.AddCacheItemDependency(cacheKey); The thing I am struggling with is what I should add to the cache? The dependency my page has is to a single value returned by the web service. My current thinking is that I should create a Custom Cache Dependency via subclassing CacheDependency, and store the current value in the cache. I can then use Response.AddCacheItemDependency to form the dependency. I can then periodically check the value and for a NotifyDependencyChange in order to invalidate my cached HTTP response. The problem is, I need to ensure that the cache is flushed immediately, so a periodic check is not good enough. How can I ensure that my dependant object in the cache which represents the value returned by the web service is re-evaluated before the HTTP response is fetched from the cache? Regards, Colin E.

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• Django caching seems to be causing problems

  - by Issy

  Hey guys, i have just implemented the Django Cache Local Memory back end in some my code, however it seems to be causing a problem. I get the following error when trying to view the site (With Debug On): Traceback (most recent call last): File "/usr/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 279, in run self.result = application(self.environ, self.start_response) File "/usr/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 651, in __call__ return self.application(environ, start_response) File "/usr/lib/python2.6/dist-packages/django/core/handlers/wsgi.py", line 245, in __call__ response = middleware_method(request, response) File "/usr/lib/python2.6/dist-packages/django/middleware/cache.py", line 91, in process_response patch_response_headers(response, timeout) File "/usr/lib/python2.6/dist-packages/django/utils/cache.py", line 112, in patch_response_headers response['Expires'] = http_date(time.time() + cache_timeout) TypeError: unsupported operand type(s) for +: 'float' and 'str' I have checked my code, for caching everything seems to be ok. For example, i have the following in my middleware. MIDDLEWARE_CLASSES = ( 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.middleware.cache.UpdateCacheMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.cache.FetchFromCacheMiddleware', 'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware', ) My settings for Cache: CACHE_BACKEND = 'locmem://' CACHE_MIDDLEWARE_SECONDS = '3600' CACHE_MIDDLEWARE_KEY_PREFIX = 'za' CACHE_MIDDLEWARE_ANONYMOUS_ONLY = True And some of my code (template tag): def get_featured_images(): """ provides featured images """ cache_key = 'featured_images' images = cache.get(cache_key) if images is None: images = FeaturedImage.objects.all().filter(enabled=True)[:5] cache.set(cache_key, images) return {'images': images} Any idea what could be the problem, from the error message below it looks like there's an issue in django's cache.py?

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• Classic ASP application-wide initializations and object caching

  - by slack3r

  In classic ASP (which I am forced to use), I have a few factory functions, that is, functions that return classes. I use JScript. In one include file I use these factory functions to create some classes that are used throughout the application. This include file is included with the #include directive in all pages. These factory functions do some "heavy lifting" and I don't want them to be executed on every page load. So, to make this clear I have something like this: // factory.inc function make_class(arg1, arg2) { function klass() { //... } // ... Some heavy stuff return klass; } // init.inc, included everywhere <!-- #include FILE="factory.inc" --> // ... MyClass1 = make_class(myarg01, myarg02); MyClass2 = make_class(myarg11, myarg12); //... How can I achieve the same effect without calling make_class on every page load? I know that I can't cache the classes in the Application object I can't use the Application_OnStart hook in Global.asa I could probably create a scripting component, but I really don't want to do that So, is there something else I can do? Maybe some way to achieve caching of these classes, which are really objects in JScript. PS: [further clarification] In the above code "heavy stuff" is not so heavy, but I just want to know if there's a way to avoid it being executed all the time. It reads database meta information, builds a table of the primary keys in the database and another table that resolves strings to classes, etc.

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• caching previous return values of procedures in scheme

  - by Brock

  In Chapter 16 of "The Seasoned Schemer", the authors define a recursive procedure "depth", which returns 'pizza nested in n lists, e.g (depth 3) is (((pizza))). They then improve it as "depthM", which caches its return values using set! in the lists Ns and Rs, which together form a lookup-table, so you don't have to recurse all the way down if you reach a return value you've seen before. E.g. If I've already computed (depthM 8), when I later compute (depthM 9), I just lookup the return value of (depthM 8) and cons it onto null, instead of recursing all the way down to (depthM 0). But then they move the Ns and Rs inside the procedure, and initialize them to null with "let". Why doesn't this completely defeat the point of caching the return values? From a bit of experimentation, it appears that the Ns and Rs are being reinitialized on every call to "depthM". Am I misunderstanding their point? I guess my question is really this: Is there a way in Scheme to have lexically-scoped variables preserve their values in between calls to a procedure, like you can do in Perl 5.10 with "state" variables?

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• Is MySQL caching occurring, how to fix it?

  - by rlb.usa

  I think that MySQL or ASP.NET is caching my queries. I edited my MySQL sproc to remove some parameters but it keeps saying that those parameters are missing. Here is what happens: ASP.NET app calls a MySQL stored procedure. Everything works perfect. I delete some parameters from the sproc and ASP.NET parameter list accordingly. All parameters exactly match in case and order from the new ASP.NET and MySQL sproc code Upon execution, it fails, saying : System.ArgumentException: Parameter 'deleted_parameter_foo_bar' not found in the collection. at MySql.Data.MySqlClient.MySqlParameterCollection ... I delete the sproc from the database, restart my browser, and reexecute the ASP.NET page. It says the same error, that the parameter is missing - but the sproc itself doesn't exist anymore. ( I know 100% that I am editing/deleting from the right database. ) How do I fix this or make it work again; I want it to use my new sproc instead of the old one ? _o

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• jQuery variable and object caching

  - by niksy

  This is something that has been bugging me some time and every time I found myself using different solution for this. So, I have link in my document which on click creates new element with some ID. <a href="#" id="test-link">Link</a> For the purpose of easier reusing, I would like to store that new elements ID in a variable which is jQuery object var test = $('#test'); On click I append that new element on body, new element is DIV $('body').append('<div id="test"/>'); And here goes the main "problem" - if I test this new elements length with test.length it first returns 0 and later 1. But, when I test it with $('#test').length it returns 1 from the start. I suppose it is some caching mechanism and I was wondering is there better, all-around solution which will allow to store elements in variables in the start for later repurpose and in the same time work with dynamically created elements. Live, delegate, something else? What I do sometimes is create string and add it to jQuery object but I think this is just avoiding the real issue. Also, using .find() inside another jQuery object. Thanks in advance.

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• How do I create Document Fragments with Nokogiri?

  - by viatropos

  I have an html document like this: <div class="something"> <textarea name="another"/> <div class="nested"> <label>Nested Label</label> <input name="nested_input"/> </div> </div> I have gone through and modified some of the html tree by building it into a Nokogiri::HTML::Document like so: html = Nokogiri::HTML(IO.read("test.html")) html.children.each do ... Now I want to be able to extract the nested part into a document so I can apply a stylesheet to it, or so I can manipulate it as if it were like a Rails partial. Something like this: fragment = Nokogiri::HTML(html.xpath("//div[@class='nested']).first) Is there a way to do that? Such a way that when I output it, it doesn't wrap it in<html> tags and turn it into an HTML document, I just want HTML, no document. Is this possible?

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• Android: FragmentAdapter and pageview do not update the view

  - by user1240937

  My trouble is: when i get new data, my viewpager that use my custom adapter do not update view. I discovered that many programmer got same bug, so i tried a lot of suggestion but no way works for me. So tired. One more time, read my source and help me understand why i fail with updating view pleaseee! Here is my FragmentAdapter: private class SwipeyTabsPagerAdapter extends FragmentPagerAdapter implements SwipeyTabsAdapter { private final Context mContext; private String[] datas; public SwipeyTabsPagerAdapter(Context context, FragmentManager fm, String[] ds) { super(fm); this.mContext = context; datas=ds; } @Override public int getItemPosition(Object object) { return POSITION_NONE; } @Override public Fragment getItem(int position) { Log.e("new item:", datas[position]); return SwipeyTabFragment.newInstance(datas[position]); } @Override public int getCount() { return datas.length; } public TextView getTab(final int position, SwipeyTabs root) { TextView view = (TextView) LayoutInflater.from(mContext).inflate( R.layout.swipey_tab_indicator, root, false); view.setText(datas[position]); view.setOnClickListener(new OnClickListener() { public void onClick(View v) { mViewPager.setCurrentItem(position); } }); return view; } } and here is where i set adapter: SwipeyTabsPagerAdapter adapter = new SwipeyTabsPagerAdapter(getApplicationContext(), getSupportFragmentManager(),dicts); mViewPager.setAdapter(adapter); mTabs.setAdapter(adapter); mViewPager.getAdapter().notifyDataSetChanged(); By logcat, can see clearly that: only first time, newItem be processed, so view can not be update.

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• Generating cache file for Twitter rss feed

  - by Kerri

  I'm working on a site with a simple php-generated twitter box with user timeline tweets pulled from the user_timeline rss feed, and cached to a local file to cut down on loads, and as backup for when twitter goes down. I based the caching on this: http://snipplr.com/view/8156/twitter-cache/. It all seemed to be working well yesterday, but today I discovered the cache file was blank. Deleting it then loading again generated a fresh file. The code I'm using is below. I've edited it to try to get it to work with what I was already using to display the feed and probably messed something crucial up. The changes I made are the following (and I strongly believe that any of these could be the cause): - Revised the time difference code (the linked example seemed to use a custom function that wasn't included in the code) Removed the "serialize" function from the "fwrites". This is purely because I couldn't figure out how to unserialize once I loaded it in the display code. I truthfully don't understand the role that serialize plays or how it works, so I'm sure I should have kept it in. If that's the case I just need to understand where/how to deserialize in the second part of the code so that it can be parsed. Removed the $rss variable in favor of just loading up the cache file in my original tweet display code. So, here are the relevant parts of the code I used: <?php $feedURL = "http://twitter.com/statuses/user_timeline/#######.rss"; // START CACHING $cache_file = dirname(__FILE__).'/cache/twitter_cache.rss'; // Start with the cache if(file_exists($cache_file)){ $mtime = (strtotime("now") - filemtime($cache_file)); if($mtime > 600) { $cache_rss = file_get_contents('http://twitter.com/statuses/user_timeline/75168146.rss'); $cache_static = fopen($cache_file, 'wb'); fwrite($cache_static, $cache_rss); fclose($cache_static); } echo "<!-- twitter cache generated ".date('Y-m-d h:i:s', filemtime($cache_file))." -->"; } else { $cache_rss = file_get_contents('http://twitter.com/statuses/user_timeline/#######.rss'); $cache_static = fopen($cache_file, 'wb'); fwrite($cache_static, $cache_rss); fclose($cache_static); } //END CACHING //START DISPLAY $doc = new DOMDocument(); $doc->load($cache_file); $arrFeeds = array(); foreach ($doc->getElementsByTagName('item') as $node) { $itemRSS = array ( 'title' => $node->getElementsByTagName('title')->item(0)->nodeValue, 'date' => $node->getElementsByTagName('pubDate')->item(0)->nodeValue ); array_push($arrFeeds, $itemRSS); } // the rest of the formatting and display code.... } ?> ETA 6/17 Nobody can help…? I'm thinking it has something to do with writing a blank cache file over a good one when twitter is down, because otherwise I imagine that this should be happening every ten minutes when the cache file is overwritten again, but it doesn't happen that frequently. I made the following change to the part where it checks how old the file is to overwrite it: $cache_rss = file_get_contents('http://twitter.com/statuses/user_timeline/75168146.rss'); if($mtime > 600 && $cache_rss != ''){ $cache_static = fopen($cache_file, 'wb'); fwrite($cache_static, $cache_rss); fclose($cache_static); } …so now, it will only write the file if it's over ten minutes old and there's actual content retrieved from the rss page. Do you think this will work?

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• Enabling browser caching via java

  - by Franz See

  Good day, I am using CacheFilter to filter a certain path to my server (which outputs an image stream to the response stream). And I've configured it in my web.xml as follows: <filter> <filter-name>imagesCache</filter-name> <filter-class>com.samaxes.cachefilter.presentation.CacheFilter</filter-class> <init-param> <param-name>privacy</param-name> <param-value>public</param-value> </init-param> <init-param> <param-name>expirationTime</param-name> <param-value>2592000</param-value> </init-param> </filter> ... <filter-mapping> <filter-name>imagesCache</filter-name> <url-pattern>/my/path/*</url-pattern> </filter-mapping> Using my firefox, if I access my url via the address bar, it hits the server the first time but uses the cache during succeeding calls. However, if the url is inside my page ( i.e. <img src="..."/> ), it seems to hit the server all the time. [EDIT] After a few more testing, accessing my image via the address bar does not work all the time. But caching does seem to work more often with it than . As to whether it really, I am not sure. Additional Info: my path is something like /my/path?then=some&query=strings. Notice that it doesn't have an extension (i.e. gif, png, jpeg ) but it's mimetype is set properly ( image/gif, image/png, image/jpeg ). I am not sure if the lack of extension or the presence of the query strings have any impact. (Also, another note. though my url have query strings, I am using the same uri + query string over and over again with my tests). Any ideas why? Thanks

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• Nested partial output caching in asp.net mvc 3

  - by Anwar Chandra

  Hi All, I am using Razor view engine in ASP.Net MVC 3 RC 2 this is part of my view city.cshtml (drastically simplified for the sake of simple example) <!-- in city.cshtml --> <div class="list"> @foreach(var product in SQL.GetProducts(Model.City) ) { <div class="product"> <div>@product.Name</div> <div class="category"> @foreach(var category in SQL.GetCategories(product.ID) ) { <a href="@category.Url">@category.Name</a> » } </div> </div> } </div> I want to cache this part of my output using OutputCache attribute. so I created an action ProductList with OutputCache attribute enabled <!-- in city.cshtml --> <div class="list"> @Html.Action("ProductList", new { City = Model.City }) </div> and I created the view in ProductList.cshtml as below <!-- in ProductList.cshtml --> @foreach(var product in Model.Products ) { <div class="product"> <div>@product.Name</div> <div class="category"> @foreach(var category in SQL.GetCategories(product.ID) ) { <a href="@category.Url">@category.Name</a> » } </div> </div> } but I still need to cache the category path output on each product. so I created an action CategoryPath with OutputCache attribute enabled <!-- in ProductList.cshtml --> @foreach(var product in Model.Products ){ <div class="product"> <div>@product.Name</div> <div class="category"> @Html.Action("CategoryPath", new { ProductID = product.ID }) </div> </div> } but apparently this is not allowed. I got this error.. OutputCacheAttribute is not allowed on child actions which are children of an already cached child action. I believe they have a good reason why they need to disallow this. but I really want this kind of nested Output Caching Please, any idea for a workaround?

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• Instance caching in Objective C

  - by zoul

  Hello! I want to cache the instances of a certain class. The class keeps a dictionary of all its instances and when somebody requests a new instance, the class tries to satisfy the request from the cache first. There is a small problem with memory management though: The dictionary cache retains the inserted objects, so that they never get deallocated. I do want them to get deallocated, so that I had to overload the release method and when the retain count drops to one, I can remove the instance from cache and let it get deallocated. This works, but I am not comfortable mucking around the release method and find the solution overly complicated. I thought I could use some hashing class that does not retain the objects it stores. Is there such? The idea is that when the last user of a certain instance releases it, the instance would automatically disappear from the cache. NSHashTable seems to be what I am looking for, but the documentation talks about “supporting weak relationships in a garbage-collected environment.” Does it also work without garbage collection? Clarification: I cannot afford to keep the instances in memory unless somebody really needs them, that is why I want to purge the instance from the cache when the last “real” user releases it. Better solution: This was on the iPhone, I wanted to cache some textures and on the other hand I wanted to free them from memory as soon as the last real holder released them. The easier way to code this is through another class (let’s call it TextureManager). This class manages the texture instances and caches them, so that subsequent calls for texture with the same name are served from the cache. There is no need to purge the cache immediately as the last user releases the texture. We can simply keep the texture cached in memory and when the device gets short on memory, we receive the low memory warning and can purge the cache. This is a better solution, because the caching stuff does not pollute the Texture class, we do not have to mess with release and there is even a higher chance for cache hits. The TextureManager can be abstracted into a ResourceManager, so that it can cache other data, not only textures.

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• Action Cache for root URL not working

  - by askegg

  Here's the setup. I have web site which is essentially a simple CMS. Here is the routes file: map.connect ':url', :controller => :pages, :action => :show map.root :controller => :pages, :action => :show, :url => "/" The page controller is thus: class PagesController < ApplicationController before_filter :verify_access, :except => [:show] # Cache show action if we are not logged in. caches_action :show, :layout => false, :unless => Proc.new { |controller| controller.logged_in? } def update @page = Page.find(params[:id]) respond_to do |format| expire_action :action => :show, :url => @page.url So when a visitor hits "/" it maps to :controller = "pages, :action = "show, :url = "/". This generates a cached version on first try, then returns the appropriate result there after. The log files show: Processing PagesController#show (for 127.0.0.1 at 2009-08-02 14:15:01) [GET] Parameters: {"action"=>"show", "url"=>"/", "controller"=>"pages"} Cached fragment hit: views/out.local// (0.1ms) Rendering template within layouts/application Filter chain halted as [#<ActionController::Filters::AroundFilter:0x23eb03c @identifier=nil, @method=#<Proc:0x01904858@/Library/Ruby/Gems/1.8/gems/actionpack-2.3.3/lib/action_controller/caching/actions.rb:64>, @kind=:filter, @options={:only=>#<Set: {"show"}>, :if=>nil, :unless=>#<Proc:0x025137ac@/Users/askegg/Sites/out/app/controllers/pages_controller.rb:6>}>] did_not_yield. Completed in 2ms (View: 1, DB: 0) | 200 OK [http://out.local/] OK - all good so far. When I update the page, it should expire the cache (see above). The logs show: Page Load (0.2ms) SELECT * FROM "pages" WHERE ("pages"."id" = 3) Page Load (0.1ms) SELECT "pages".id FROM "pages" WHERE ("pages"."url" = '/' AND "pages".domain_id = 1 AND "pages".id <> 3) LIMIT 1 Expired fragment: views/out.local/index (0.1ms) Redirected to http://out.local/pages/3 Completed in 9ms (DB: 0) | 302 Found [http://out.local/pages/3] See the problem? Rails is clearing the cache named "index", but it sets it as "/". Naturally this results in the cache NOT being cleared, so visitors are now seeing the old version.

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• IE dynamic image caching issue?

  - by rdevitt

  I have an html page that is loading multiple iframes into which are embedded dynamic images created from a Tomcat server page (.jsp). This works as expected from Chrome and Firefox, but for some reason IE displays all of the images the same (as the first image). I've created an example: http://coupondiscounts.com/dev/jsImageTest.html jsImageTest.html -- This page simply loads 6 instances of the testImageFrame.html page in separate iframes one-at-a-time, using Javascript. testImageFrame.html -- This is the page loaded in all the iframes. It contains only a JavaScript block that writes out the current time and an img tag. The img is dynamically generated by a .jsp page on a different server. It should be a white box on a black background. In the box are the current time (from the Tomcat server using Java) and a randomly created double between 0 & 1. What happens (in IE): The page almost instantly loads four identical iframes. Depending on the speed of your machine, the JavaScript times may vary by a second or two. The images' times will all be the same as will be the random number. This holds true even for the last two iframes which are loaded 5 and 10 seconds after the others (using JavaScript setTimeout()). What should happen (as it does in Chrome and FF): The page loads the same 4 iframes, but the random numbers in the images will be different. The times in the images occasionally span a second as well. Anyone have a clue as to what's going on here? Is IE doing some strange caching? The image header has "no-cache," "no-store" and all that. I've tried it on IE6 and 7. You can use the "Next" button to create another iframe. In IE, the images are always the same. Notes: I don't really need iframes, just the images, but if I only use img tags, the problem appears in Chrome and FF as well. I also don't really need to load these iframes dynamically, I was just trying to abstract the issue further and allow a delayed load for the latter 2 images.

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• Request.IsAuthenticated problem with Cache in ASP.NET

  - by Julien

  Hello guys or girls..! I'm new in ASP.NET and I have a problem... When I want to cache I View or an Action like this : <%@ Page title="" language="C#" masterpagefile="~/Views/Shared/MemberHome.Master" inherits="System.Web.Mvc.ViewPage<IndexViewData>" %> <%@ OutputCache duration="400" varybyparam="divId;regionId;page" %> I know that it cache all data in my page ... But in my page I have a condition like this : <% if(Request.IsAuthenticated) { %> <a href="/fr/Advertiser/Search"><img src="/content/images/v_2/bot.jpg" alt="Entreprises liées à vos passions" title="Entreprises liées à vos passions" /></a> <% } else { %> <a href="/fr/Advertiser/OpenSearch"><img src="/content/images/v_2/bot.jpg" alt="Entreprises liées à vos passions" title="Entreprises liées à vos passions" /></a> <% } %> I dont want to cache this variable : Request.IsAuthenticated ... because some result depend of this condition ... I try the donut caching by scottgu's but it return (I think) just some text not a bool ... http://weblogs.asp.net/scottgu/archive/2006/11/28/tip-trick-implement-donut-caching-with-the-asp-net-2-0-output-cache-substitution-feature.aspx Now I'm tired to try anything that come to my mind .. can you help me pleaseee! :) Julien.

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• Bypass all cacheing on jQuery.autocomplete(1.02)

  - by technicalbloke

  I am using jQuery.autocomplete(1.02) on my search box and I want exact string and substring matching. I don't care (yet!) about the database load, I'm happy for it to fire off a query every keystroke and bypass the caching entirely - I just don't want anything missed. To this end I have tried setting cacheLength=1, the minimum permitted, but the autocomplete function refuses to fire off a GET request for each key up. searchbox GET_request 'a' -> http://localhost/service_search_request?q=a 'ar' -> http://localhost/service_search_request?q=ar 'ars' -> http://localhost/service_search_request?q=ars Instead, it sends the first and the third and misses the second, giving me the wrong results for 'ar' :-/ I've cleared my cache and sessions but it looks like some sort of caching is still going on. AFAIK I have no proxying going on and I'm shift-refreshing each time. It looks likely then that this behavior is from jQuery.autocomplete itself. So my questions are... A) Does this seem likely? i.e. is it a feature, or maybe a bug? B) If so is there a clean way around it?... C) If not, what autocomplete would you use instead? Naturally D) No you're just using it incorrectly you douche! is always a possibility, and indeed the one I'd prefer having spent time going down this road - assuming it comes with a link to the docs I've failed to find / read! Cheers, Roger :)

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