How to cache a file

hi all,
I need to cache a file into memory and read it out.
how do i do that? is there any tutorial for file cache-ing
thanks

but the file can be really big or small.
with byte array i have to specify a size ahead of time, which i dont want.

Similar Messages

How to cache swf files via browser

I notice that games on facebook ara caching lot's of swf files in browser temparary folder, I'm wondering how this is done, I'm new to web techs :> Somebody help? Thanks a lot.

AndrewYuCWA1987 wrote:
Thank U
but what i attend to do is:
- swf resource is need, and there're a lot
- they're on the server first
- when loading swf needed, access loacally file first, if there's none, get remote swf resource from server
- after load from remote, cache swf files locally for the next application runs
How can this be done?
all the above happens by default unless a user clears their cache or has not browser cache- which you can't control.
I met sand box issue when I apply URLRequest api, and I've looked into game's on facebook and other SNS platform, caching is the
common way to build a game, there's a "loader.swf?v=XXXX" there, and if I copy it to file system and run it, surely it's doing URLLoading and trigger a sand box trouble like I do, but when it's applied in the browser, or say in the way it's originally used, it worked,
So I doubt there's something I can do to implement the goal I've imagined, question is, how ) ;
appending a changing query string (?v=XXX) to a url is a common way to prevent browser caching by making the browser think each of those swfs are different by virtue of the changing query string.

How to cache .fmx files

Hey all,
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Jim,
There is no option as such in Xcelsius.
We used SAP BI Query as a source for our dashboard and we had similar issue, we then cached the SAP BI Query to reduce the load time....it worked really very well!!
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How to cache swf files to reduce load time?

Hi,
We are using the XML data connection for our swf files. Some of our swf files are large and may take a minute to load. Is it possible to cache the swf files so they load in a shorter amount of time? If so, how would I go about doing this? Thanks!

Jim,
There is no option as such in Xcelsius.
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Our project is unique in that we want to cache particular json files. Our performance will rely on it. However it seems dispatcher is only capable of caching HTML. This will be real bad news for us if it's impossible.
In our /cache configuration, we'd like to do:
/rules
/0000
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/0001
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Depends what you mean by clear out. Dispatcher does two things on activation request: invalidate and evict.
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/0001
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How to cache video file for offline view in Air 3.1?

Hi Every FLASH/AIR developers
I Have made native iPhone app for watching videos from internet .
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Appreciate your help
THANKS

I'm also looking for a solution to this. Have you found a solution ?

Can you please help to understand how the firefox decides on the Expires date for a cached javascript file ( my server did not set any Expire header, but firebox set it down).

# Question
Can you please help to understand how the firefox decides on the Expires date for a cached javascript file ( my server did not set any Expire header, but firebox set it down). I tried to understand but different javascript file gets different Expires date value when it is being cached. Please help me as I tried lot and could not get proper answer for this. Thanks in Advance.

Try posting at the Web Development / Standards Evangelism forum at MozillaZine. The helpers over there are more knowledgeable about web page development issues with Firefox. <br />
http://forums.mozillazine.org/viewforum.php?f=25 <br />
You'll need to register and login to be able to post in that forum.

How to clear cache, temporary files, cookies in Firefox five

how do I go about clearing the cache, temporary files, and cookies in the new version of Firefox five. The tools and techniques in the old menu bar were developed over many years and are useful to some people some of the time. When you make major changes and take away useful tools he often cause frustration amongst your users.

You can go to Tools -> Clear Recent History (or Ctrl+Shift+Del) and choose what you want to delete.
Or you can take the long way through Tools -> Options -> Privacy and click on "clear your recent history"
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How to clear uploaded files cache

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is there a way to either clear uploaded files or atleast force firefox to use my sd.card storage space for uploads/plugins/ addons or anything else it needs to atore?

Hello,
Please see the support request below. It contains tips on how to reduce the size of the cache and also how to move the cache to external storage.
https://support.mozilla.org/en-US/questions/947996

How does Flex cache PDF files??

I need to prevent my Flex application to cache PDF files... We are using LiveCycle8.2 and Flex 3.2. Does anybody may help me??

Sorry for being newbie obtuse but are you saying that FP (Flex Project I assume)'s are an Active X (application) and thus IE does utilize its cache for all HTTP based communications???
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As such is the following correct?
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How to make Edge Animation works in HLTM5 Offline? I cache all files, but Edge didn't play.

How to make Edge Animation works in HLTM5 Offline? I cache all files, but Edge didn't play.
Some createJS animation start without any problem.
Thanks!
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Thank you for your answer.
I do use cdn off for publish setting.
The Web site that I am working on is a very complicated site. Edge
animations are in a subdirectory of Apache server.
When server is offline, I get all files from Appcache without problem,
excepted *_EdgePreload.js.
I Google hundreds time, cannot find answer on why this file is always get
online.
Finally, I find out myself, Adobe Edge don’t like relative file path for
*_EdgePreload.js.
Change to root absolute path fixed the problem:
Astors

How do I retrieve cache.mov files so I can play them on quicktime?

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How to start a cache config file with proxy-scheme

Hi all,
The below is my cache-config file taken from coherence extend example.
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config>
<caching-scheme-mapping>
<cache-mapping>
<cache-name>*</cache-name>
<scheme-name>dist-default</scheme-name>
</cache-mapping>
<cache-mapping>
<cache-name>*</cache-name>
<scheme-name>example-remote</scheme-name>
</cache-mapping>
</caching-scheme-mapping>
<caching-schemes>
<distributed-scheme>
<scheme-name>dist-default</scheme-name>
<lease-granularity>member</lease-granularity>
<backing-map-scheme>
<local-scheme/>
</backing-map-scheme>
<autostart>true</autostart>
</distributed-scheme>
<distributed-scheme>
<scheme-name>example-remote</scheme-name>
<lease-granularity>member</lease-granularity>
<backing-map-scheme>
<local-scheme/>
</backing-map-scheme>
<autostart>true</autostart>
</distributed-scheme>
<proxy-scheme>
<service-name>ExtendTcpProxyService</service-name>
<thread-count>5</thread-count>
<acceptor-config>
<tcp-acceptor>
<local-address>
<address>localhost</address>
<port>9009</port>
</local-address>
</tcp-acceptor>
</acceptor-config>
<autostart>true</autostart>
</proxy-scheme>
</caching-schemes>
</cache-config>
In order to start the proxy cache server on localhost:9009 should i use the DefaultCacheServer program only/ I tried to use a SimpleCacheExplore program with the above config and it didnt start the proxy-scheme on localhost. is there anything i am missing?
Regards
S

Hello,
I ran the following with your cache configuration:
java -cp coherence.jar -Dtangosol.coherence.cacheconfig=coherence-cache-config.xml com.tangosol.net.DefaultCacheServer...and got the following output:
2010-01-04 10:23:54.363/5.477 Oracle Coherence GE 3.5.2/463p2 <Info> (thread=Proxy:ExtendTcpProxyService:TcpAcceptor, member=1): TcpAcceptor now listening for connections on 10.149.189.62:9009
Services
TcpRing{TcpSocketAccepter{State=STATE_OPEN, ServerSocket=10.149.189.62:8088}, Connections=[]}
ClusterService{Name=Cluster, State=(SERVICE_STARTED, STATE_JOINED), Id=0, Version=3.5, OldestMemberId=1}
InvocationService{Name=Management, State=(SERVICE_STARTED), Id=1, Version=3.1, OldestMemberId=1}
DistributedCache{Name=DistributedCache, State=(SERVICE_STARTED), LocalStorage=enabled, PartitionCount=257, BackupCount=1, AssignedPartitions=257, BackupPartitions=0}
ProxyService{Name=ExtendTcpProxyService, State=(SERVICE_STARTED), Id=3, Version=3.2, OldestMemberId=1}
)The proxy service appears to be running using DefaultCacheServer and this configuration. Does your output look any different?
Thanks,
Patrick

How to download a file version from office 365 using csom

I need to download an older file version from office 365 and get the data into a byte array. I have no trouble downloading the latest version with File.OpenBinaryStream() and I have no trouble loading the previous file versions with File.Versions. But now
I need to actually download an older version of the file and it seems the only way is to use File.OpenBinaryDirect. So I am creating a client context using my oAuth access token and providing the correct path, but I am getting a (401) Unauthorized
error. Looking with Fiddler I can see that the call to OpenBinaryDirect is somehow trying to post to my file URL and the server is responding with 401.
context = TokenHelper.GetClientContextWithAccessToken(SPHostUrl, AccessToken);
FileInformation info = File.OpenBinaryDirect(context, "/" + _fileVersion.Url); //throws 401
//leading slash required otherwise ArgumentOutOfRangeException
I have to be able to access the older file versions with my c# code -- I don't have a viable app without that ability -- any help urgently needed and greatly appreciated!

Thank you SO much (Can't wait for the next release)!
For anyone else who lands here, here's the code I ended up using:
// VersionAccessUser and VersionAccessPassword are stored in web.config
// web.Url is loaded via the clientContext
// myVersion is the FileVersion I got from the file's Versions.GetById() method
// probably a lot of ways to get hostUrl, it just needs to be https://yourdomain.sharepoint.com/
// - I'm running my app from a subweb
// I had trouble following the links to get the full MsOnlineClaimsHelper code
// (the one on msdn.com was missing RequestBodyWriter, WSTrustFeb2005ContractClient,
// and IWSTrustFeb2005Contract
// so I've included the code I used here.
string myVersionFullUrl = string.Format("{0}/{1}", web.Url, myVersion.Url);
string userName = WebConfigurationManager.AppSettings.Get("VersionAccessUser");
string strPassword = WebConfigurationManager.AppSettings.Get("VersionAccessPassword");
string hostUrl = Regex.Replace(web.Url, "([^/]+//[^/]+/).*", "$1");
MsOnlineClaimsHelper claimsHelper = new MsOnlineClaimsHelper(hostUrl, userName, strPassword);
var client = new WebClient();
client.Headers["Accept"] = "/";
client.Headers.Add(HttpRequestHeader.UserAgent, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");
client.Headers.Add(HttpRequestHeader.Cookie, claimsHelper.CookieContainer.GetCookieHeader(new Uri(hostUrl)));
var document = client.DownloadString(myVersionFullUrl);
// These classes are needed to download old versions of files (see: http://social.msdn.microsoft.com/Forums/en-US/7746d857-d351-49cc-b2f0-496663239e02/how-to-download-a-file-version-from-office-365-using-csom?forum=sharepointdevelopment)
// I cobbled this file from http://social.technet.microsoft.com/Forums/msonline/en-US/4e304493-7ddd-4721-8f46-cb7875078f8b/problem-logging-in-to-office-365-sharepoint-online-from-webole-hosted-in-the-cloud?forum=onlineservicessharepoint
// and http://fredericloud.com/2011/01/11/connecting-to-sharepoint-with-claims-authentication/
using Microsoft.IdentityModel.Protocols.WSTrust;
using Microsoft.SharePoint.Client;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Security;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Text;
using System.Web;
using System.Xml;
using System.Xml.Linq;
namespace DPSiDoxAppWeb.Helpers
/// <summary>
/// Create a new contract to use for issue claims for the SharePoint requests
/// </summary>
[ServiceContract]
public interface IWSTrustFeb2005Contract
[OperationContract(ProtectionLevel = ProtectionLevel.EncryptAndSign,
Action = "http://schemas.xmlsoap.org/ws/2005/02/trust/RST/Issue",
ReplyAction = "http://schemas.xmlsoap.org/ws/2005/02/trust/RSTR/Issue",
AsyncPattern = true)]
IAsyncResult BeginIssue(Message request, AsyncCallback callback, object state);
Message EndIssue(IAsyncResult asyncResult);
/// <summary>
/// Implement the client contract for the new type
/// </summary>
public class WSTrustFeb2005ContractClient : ClientBase<IWSTrustFeb2005Contract>, IWSTrustFeb2005Contract
public WSTrustFeb2005ContractClient(Binding binding, EndpointAddress remoteAddress)
: base(binding, remoteAddress)
public IAsyncResult BeginIssue(Message request, AsyncCallback callback, object state)
return Channel.BeginIssue(request, callback, state);
public Message EndIssue(IAsyncResult asyncResult)
return Channel.EndIssue(asyncResult);
/// <summary>
/// Create a class that will serialize the token into the request
/// </summary>
class RequestBodyWriter : BodyWriter
readonly WSTrustRequestSerializer _serializer;
readonly RequestSecurityToken _rst;
/// <summary>
/// Constructs the Body Writer.
/// </summary>
/// <param name="serializer">Serializer to use for serializing the rst.</param>
/// <param name="rst">The RequestSecurityToken object to be serialized to the outgoing Message.</param>
public RequestBodyWriter(WSTrustRequestSerializer serializer, RequestSecurityToken rst)
: base(false)
if (serializer == null)
throw new ArgumentNullException("serializer");
_serializer = serializer;
_rst = rst;
/// <summary>
/// Override of the base class method. Serializes the rst to the outgoing stream.
/// </summary>
/// <param name="writer">Writer to which the rst should be written.</param>
protected override void OnWriteBodyContents(XmlDictionaryWriter writer)
_serializer.WriteXml(_rst, writer, new WSTrustSerializationContext());
public class MsOnlineClaimsHelper
#region Properties
readonly string _username;
readonly string _password;
readonly bool _useRtfa;
readonly Uri _host;
CookieContainer _cachedCookieContainer = null;
DateTime _expires = DateTime.MinValue;
#endregion
#region Constructors
public MsOnlineClaimsHelper(string host, string username, string password)
: this(new Uri(host), username, password)
public MsOnlineClaimsHelper(Uri host, string username, string password)
_host = host;
_username = username;
_password = password;
_useRtfa = true;
public MsOnlineClaimsHelper(Uri host, string username, string password, bool useRtfa)
_host = host;
_username = username;
_password = password;
_useRtfa = useRtfa;
#endregion
#region Constants
public const string office365STS = "https://login.microsoftonline.com/extSTS.srf";
public const string office365Login = "https://login.microsoftonline.com/login.srf";
public const string office365Metadata = "https://nexus.microsoftonline-p.com/federationmetadata/2007-06/federationmetadata.xml";
public const string wsse = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd";
public const string wsu = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd";
private const string userAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)";
#endregion
class MsoCookies
public string FedAuth { get; set; }
public string rtFa { get; set; }
public DateTime Expires { get; set; }
public Uri Host { get; set; }
// Method used to add cookies to CSOM
public void clientContext_ExecutingWebRequest(object sender, WebRequestEventArgs e)
e.WebRequestExecutor.WebRequest.CookieContainer = getCookieContainer();
//e.WebRequestExecutor.WebRequest.UserAgent = userAgent;
// Creates or loads cached cookie container
CookieContainer getCookieContainer()
if (_cachedCookieContainer == null || DateTime.Now > _expires)
// Get the SAML tokens from SPO STS (via MSO STS) using fed auth passive approach
MsoCookies cookies = getSamlToken();
if (cookies != null && !string.IsNullOrEmpty(cookies.FedAuth))
// Create cookie collection with the SAML token
_expires = cookies.Expires;
CookieContainer cc = new CookieContainer();
// Set the FedAuth cookie
Cookie samlAuth = new Cookie("FedAuth", cookies.FedAuth)
Expires = cookies.Expires,
Path = "/",
Secure = cookies.Host.Scheme == "https",
HttpOnly = true,
Domain = cookies.Host.Host
cc.Add(samlAuth);
if (_useRtfa)
// Set the rtFA (sign-out) cookie, added march 2011
Cookie rtFa = new Cookie("rtFA", cookies.rtFa)
Expires = cookies.Expires,
Path = "/",
Secure = cookies.Host.Scheme == "https",
HttpOnly = true,
Domain = cookies.Host.Host
cc.Add(rtFa);
_cachedCookieContainer = cc;
return cc;
return null;
return _cachedCookieContainer;
public CookieContainer CookieContainer
get
if (_cachedCookieContainer == null || DateTime.Now > _expires)
return getCookieContainer();
return _cachedCookieContainer;
private MsoCookies getSamlToken()
MsoCookies ret = new MsoCookies();
try
var sharepointSite = new
Wctx = office365Login,
Wreply = _host.GetLeftPart(UriPartial.Authority) + "/_forms/default.aspx?wa=wsignin1.0"
//get token from STS
string stsResponse = getResponse(office365STS, sharepointSite.Wreply);
// parse the token response
XDocument doc = XDocument.Parse(stsResponse);
// get the security token
var crypt = from result in doc.Descendants()
where result.Name == XName.Get("BinarySecurityToken", wsse)
select result;
// get the token expiration
var expires = from result in doc.Descendants()
where result.Name == XName.Get("Expires", wsu)
select result;
ret.Expires = Convert.ToDateTime(expires.First().Value);
HttpWebRequest request = createRequest(sharepointSite.Wreply);
byte[] data = Encoding.UTF8.GetBytes(crypt.FirstOrDefault().Value);
using (Stream stream = request.GetRequestStream())
stream.Write(data, 0, data.Length);
stream.Close();
using (HttpWebResponse webResponse = request.GetResponse() as HttpWebResponse)
// Handle redirect, added may 2011 for P-subscriptions
if (webResponse.StatusCode == HttpStatusCode.MovedPermanently)
HttpWebRequest request2 = createRequest(webResponse.Headers["Location"]);
using (Stream stream2 = request2.GetRequestStream())
stream2.Write(data, 0, data.Length);
stream2.Close();
using (HttpWebResponse webResponse2 = request2.GetResponse() as HttpWebResponse)
ret.FedAuth = webResponse2.Cookies["FedAuth"].Value;
ret.rtFa = webResponse2.Cookies["rtFa"].Value;
ret.Host = request2.RequestUri;
else
ret.FedAuth = webResponse.Cookies["FedAuth"].Value;
ret.rtFa = webResponse.Cookies["rtFa"].Value;
ret.Host = request.RequestUri;
catch (Exception ex)
return null;
return ret;
static HttpWebRequest createRequest(string url)
HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.CookieContainer = new CookieContainer();
request.AllowAutoRedirect = false; // Do NOT automatically redirect
request.UserAgent = userAgent;
return request;
private string getResponse(string stsUrl, string realm)
RequestSecurityToken rst = new RequestSecurityToken
RequestType = WSTrustFeb2005Constants.RequestTypes.Issue,
AppliesTo = new EndpointAddress(realm),
KeyType = WSTrustFeb2005Constants.KeyTypes.Bearer,
TokenType = Microsoft.IdentityModel.Tokens.SecurityTokenTypes.Saml11TokenProfile11
WSTrustFeb2005RequestSerializer trustSerializer = new WSTrustFeb2005RequestSerializer();
WSHttpBinding binding = new WSHttpBinding();
binding.Security.Mode = SecurityMode.TransportWithMessageCredential;
binding.Security.Message.ClientCredentialType = MessageCredentialType.UserName;
binding.Security.Message.EstablishSecurityContext = false;
binding.Security.Message.NegotiateServiceCredential = false;
binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;
EndpointAddress address = new EndpointAddress(stsUrl);
using (WSTrustFeb2005ContractClient trustClient = new WSTrustFeb2005ContractClient(binding, address))
trustClient.ClientCredentials.UserName.UserName = _username;
trustClient.ClientCredentials.UserName.Password = _password;
Message response = trustClient.EndIssue(
trustClient.BeginIssue(
Message.CreateMessage(
MessageVersion.Default,
WSTrustFeb2005Constants.Actions.Issue,
new RequestBodyWriter(trustSerializer, rst)
null,
null));
trustClient.Close();
using (XmlDictionaryReader reader = response.GetReaderAtBodyContents())
return reader.ReadOuterXml();

Plz help. How disable caching SQLJ statement on WebLogic server 10.3?

Plz help.
How disable caching statement by SQLJ on WebLogic server?
what the actual problem:
1. create or replace view vtest as select object_name from dba_objects where rownum<200
2. test.sqlj
  #sql dx testIterator = {
     select object_name from vtest
   int cnt=0;
   while( testIterator.next() ){
     cnt++;
   System.out.println("Count: "+cnt);
3. Restart WebLogic and deploy project
4. Run test on server, in log file
"*Count: 199*"
5. create or replace view vtest as select object_name from dba_objects where rownum<10
6. Run test on server, in log file
"*Count: 199*"
7. Restart WebLogic
8. Run test on server, in log file
"*Count: 9*"

Hi bud,
Have you tried using WLST for what you are trying to achieve?
Please take a look at the following links:
http://docs.oracle.com/cd/E11035_01/wls100/config_scripting/domains.html
http://docs.oracle.com/cd/E13222_01/wls/docs91/config_scripting/domains.html
http://docs.oracle.com/cd/E13179_01/common/docs21/interm/config.html
Hope this helps.
Thanks,
Cris

How to cache a file

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