Re: Do not cache pages, nor in application, nor in browser
These impls are quite simple ...
No one so far ever needed something like this
On Wed, Jan 16, 2013 at 1:14 PM, Oscar Besga Arcauz wrote:
> I've made a class, extending the DefaultPageManagerProvider to avoid
> Wicket page store (in order recreate every page at every request from users)
>
>
> I'm testing it, and found no problems - for now.
>
> Take a look; I'm thinking about sending it to JIRA as an improvement
>
>
> /**
> * User: obesga
> * Date: 16-jan-2013
> * Page manager that does not store any page, nor any bit
> */
> public class VoidPageManagerProvider extends DefaultPageManagerProvider {
>
> // Common properties
> private IPageManagerContext iPageManagerContext;
> private IPageManager iPageManager;
> private IDataStore iDataStore;
> private IPageStore iPageStore;
>
> /**
> * Basic construftor
> * @param application Actual application
> */
> public VoidPageManagerProvider(Application application) {
> super(application);
> iPageManagerContext = new DefaultPageManagerContext();
> iDataStore = new VoidIDataStore();
> iPageStore = new VoidIPageStore();
> iPageManager = new
> VoidPageStoreManager(application.getName(),iPageStore,iPageManagerContext);
> }
>
> @Override
> public IPageManager get(IPageManagerContext pageManagerContext) {
> return iPageManager;
> }
>
> @Override
> protected IPageStore newPageStore(IDataStore dataStore) {
> return iPageStore;
> }
>
> @Override
> protected IDataStore newDataStore() {
> return iDataStore;
> }
>
> /**
> * A data store that doesn't store a byte
> */
> private class VoidIDataStore implements IDataStore {
>
> public byte[] getData(String s, int i) {
> return null;
> }
>
> public void removeData(String s, int i) {
> }
>
> public void removeData(String s) {
> }
>
> public void storeData(String s, int i, byte[] bytes) {
> }
>
> public void destroy() {
> }
>
> public boolean isReplicated() {
> return true;
> }
>
> public boolean canBeAsynchronous() {
> return true;
> }
> }
>
> /**
> * A page store that doesn't store a page
> */
> private class VoidIPageStore implements IPageStore {
>
> public void destroy() {
>
> }
>
> public IManageablePage getPage(String s, int i) {
> return null;
> }
>
> public void removePage(String s, int i) {
>
> }
>
> public void storePage(String s, IManageablePage iManageablePage) {
>
> }
>
> public void unbind(String s) {
>
> }
>
> public Serializable prepareForSerialization(String s, Object o) {
> return null;
> }
>
> public Object restoreAfterSerialization(Serializable serializable)
> {
> return null;
> }
>
> public IManageablePage convertToPage(Object o) {
> return null;
> }
> }
>
> /**
> * The basic store manager, extended to not support versioning
> */
> private class VoidPageStoreManager extends PageStoreManager implements
> IPageManager {
>
> public VoidPageStoreManager(String applicationName, IPageStore
> pageStore, IPageManagerContext context) {
> super(applicationName, pageStore, context);
> }
>
> @Override
> public boolean supportsVersioning() {
> return false;
> }
> }
>
>
> }
>
>
>
>
>
> > > > Oscar Besga Arcauz < < <
>
> -Martin Grigorov escribió: -
> Para: users@wicket.apache.org
> De: Martin Grigorov
> Fecha: 16/01/2013 09:00
> Asunto: Re: Do not cache pages, nor in application, nor in browser
>
> Hi,
>
>
> On Tue, Jan 15, 2013 at 7:59 PM, Oscar Besga Arcauz >wrote:
>
> >
> >
> > I use these code in order to avoid web page cache, in browser and in
> > wicket application;
> > also I want to avoid disk caching and serialization
> >
> > I'm using Wicket6
> >
> >
> > ¿ Do you see this code correct ? ¿ Is there any easier way to accomplish
> > this ?
> >
> > /**
> > * App
> > */
> > public class MyApplication extends WebApplication {
> > @Override
> > public void init() {
> >
Re: Do not cache pages, nor in application, nor in browser
I've made a class, extending the DefaultPageManagerProvider to avoid Wicket
page store (in order recreate every page at every request from users)
I'm testing it, and found no problems - for now.
Take a look; I'm thinking about sending it to JIRA as an improvement
/**
* User: obesga
* Date: 16-jan-2013
* Page manager that does not store any page, nor any bit
*/
public class VoidPageManagerProvider extends DefaultPageManagerProvider {
// Common properties
private IPageManagerContext iPageManagerContext;
private IPageManager iPageManager;
private IDataStore iDataStore;
private IPageStore iPageStore;
/**
* Basic construftor
* @param application Actual application
*/
public VoidPageManagerProvider(Application application) {
super(application);
iPageManagerContext = new DefaultPageManagerContext();
iDataStore = new VoidIDataStore();
iPageStore = new VoidIPageStore();
iPageManager = new
VoidPageStoreManager(application.getName(),iPageStore,iPageManagerContext);
}
@Override
public IPageManager get(IPageManagerContext pageManagerContext) {
return iPageManager;
}
@Override
protected IPageStore newPageStore(IDataStore dataStore) {
return iPageStore;
}
@Override
protected IDataStore newDataStore() {
return iDataStore;
}
/**
* A data store that doesn't store a byte
*/
private class VoidIDataStore implements IDataStore {
public byte[] getData(String s, int i) {
return null;
}
public void removeData(String s, int i) {
}
public void removeData(String s) {
}
public void storeData(String s, int i, byte[] bytes) {
}
public void destroy() {
}
public boolean isReplicated() {
return true;
}
public boolean canBeAsynchronous() {
return true;
}
}
/**
* A page store that doesn't store a page
*/
private class VoidIPageStore implements IPageStore {
public void destroy() {
}
public IManageablePage getPage(String s, int i) {
return null;
}
public void removePage(String s, int i) {
}
public void storePage(String s, IManageablePage iManageablePage) {
}
public void unbind(String s) {
}
public Serializable prepareForSerialization(String s, Object o) {
return null;
}
public Object restoreAfterSerialization(Serializable serializable) {
return null;
}
public IManageablePage convertToPage(Object o) {
return null;
}
}
/**
* The basic store manager, extended to not support versioning
*/
private class VoidPageStoreManager extends PageStoreManager implements
IPageManager {
public VoidPageStoreManager(String applicationName, IPageStore
pageStore, IPageManagerContext context) {
super(applicationName, pageStore, context);
}
@Override
public boolean supportsVersioning() {
return false;
}
}
}
> > > Oscar Besga Arcauz < < <
-Martin Grigorov escribió: -
Para: users@wicket.apache.org
De: Martin Grigorov
Fecha: 16/01/2013 09:00
Asunto: Re: Do not cache pages, nor in application, nor in browser
Hi,
On Tue, Jan 15, 2013 at 7:59 PM, Oscar Besga Arcauz wrote:
>
>
> I use these code in order to avoid web page cache, in browser and in
> wicket application;
> also I want to avoid disk caching and serialization
>
> I'm using Wicket6
>
>
> ¿ Do you see this code correct ? ¿ Is there any easier way to accomplish
> this ?
>
> /**
> * App
> */
> public class MyApplication extends WebApplication {
> @Override
> public void init() {
> super.init();
> setPageManagerProvider(new MyPageManagerProvider(this));
> }
>
> /**
> * shall not save
> */
> private class MyPageManagerProvider extends DefaultPageManagerProvider
> {
>
> private MyPageManagerProvider(Application application) {
> super(application);
> }
>
>
> @Override
> protected IDataStore newDataStore() {
> // guardamos tod o en memoria
> return new HttpSessionDataStore(new
> DefaultPageManagerContext(), new PageNumberEvictionStrategy(0));
>
You can use getStoreSettings#setMaxSizePerSession(Bytes.bytes(1)) with the
default DiskDataStore too.
But your approach is better because this way you don't do IO operations.
> }
>
> }
>
> }
>
>
>
> /
Re: Do not cache pages, nor in application, nor in browser
Hi,
On Tue, Jan 15, 2013 at 7:59 PM, Oscar Besga Arcauz wrote:
>
>
> I use these code in order to avoid web page cache, in browser and in
> wicket application;
> also I want to avoid disk caching and serialization
>
> I'm using Wicket6
>
>
> ¿ Do you see this code correct ? ¿ Is there any easier way to accomplish
> this ?
>
> /**
> * App
> */
> public class MyApplication extends WebApplication {
> @Override
> public void init() {
> super.init();
> setPageManagerProvider(new MyPageManagerProvider(this));
> }
>
> /**
> * shall not save
> */
> private class MyPageManagerProvider extends DefaultPageManagerProvider
> {
>
> private MyPageManagerProvider(Application application) {
> super(application);
> }
>
>
> @Override
> protected IDataStore newDataStore() {
> // guardamos tod o en memoria
> return new HttpSessionDataStore(new
> DefaultPageManagerContext(), new PageNumberEvictionStrategy(0));
>
You can use getStoreSettings#setMaxSizePerSession(Bytes.bytes(1)) with the
default DiskDataStore too.
But your approach is better because this way you don't do IO operations.
> }
>
> }
>
> }
>
>
>
> /**/
>
> /**
> * Web Page
> */
> public class MyPage extends WebPage {
>
> @Override
> protected void setHeaders(WebResponse response) {
> super.setHeaders(response);
> response.setHeader("X-Frame-Options","deny"); // Avoid IFRFAMES
> response.setHeader("Cache-Control",
> "no-cache,no-store,private,must-revalidate,max-stale=0,post-check=0,pre-check=0");
> response.setHeader("Expires","0");
> response.setHeader("Pragma", "no-cache");
> response.disableCaching();
>
You probably want to call #disableCaching() *before* your setHeader()
calls. Currently #disableCaching() overrides some of them.
> }
>
> }
>
>
>
>
> > > > Oscar Besga Arcauz < < <
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
Do not cache pages, nor in application, nor in browser
I use these code in order to avoid web page cache, in browser and in wicket
application;
also I want to avoid disk caching and serialization
I'm using Wicket6
¿ Do you see this code correct ? ¿ Is there any easier way to accomplish this ?
/**
* App
*/
public class MyApplication extends WebApplication {
@Override
public void init() {
super.init();
setPageManagerProvider(new MyPageManagerProvider(this));
}
/**
* shall not save
*/
private class MyPageManagerProvider extends DefaultPageManagerProvider {
private MyPageManagerProvider(Application application) {
super(application);
}
@Override
protected IDataStore newDataStore() {
// guardamos tod o en memoria
return new HttpSessionDataStore(new DefaultPageManagerContext(),
new PageNumberEvictionStrategy(0));
}
}
}
/**/
/**
* Web Page
*/
public class MyPage extends WebPage {
@Override
protected void setHeaders(WebResponse response) {
super.setHeaders(response);
response.setHeader("X-Frame-Options","deny"); // Avoid IFRFAMES
response.setHeader("Cache-Control",
"no-cache,no-store,private,must-revalidate,max-stale=0,post-check=0,pre-check=0");
response.setHeader("Expires","0");
response.setHeader("Pragma", "no-cache");
response.disableCaching();
}
}
> > > Oscar Besga Arcauz < < <
-
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