java.lang.Object
- lumis.portal.page.cache.PageCacheManager

All Implemented Interfaces:

IPageCacheManager, IPageCacheManagerSPI
```
public class PageCacheManager
extends Object
implements IPageCacheManagerSPI
```
Manager for page cache information.

Since:

4.0.0

Version:

$Revision: 24477 $ $Date: 2021-04-28 11:30:36 -0300 (Wed, 28 Apr 2021) $

Field Summary

Fields
Modifier and Type Field Description

static Long lastExcessiveCleaningTimestamp

static String PAGE_CACHE_MANAGER_LANGUAGE_FILENAME_PREFIX
- Fields inherited from interface lumis.portal.page.cache.IPageCacheManager
  CLEAR_CACHE_CHANGE_TYPE_DELETE, CLEAR_CACHE_CHANGE_TYPE_UPDATE, PAGE_CACHE_GEN_STATE_DISABLED, PAGE_CACHE_GEN_STATE_ENABLED

Constructor Summary

Constructors
Constructor Description

PageCacheManager()

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`clearAllHTMLCache(ITransaction transaction)`	Clears all page HTML cache.
`void`	`clearCacheByChannelIds(SessionConfig sessionConfig, Collection<String> channelIds, Map<String,String[]> parameters, int changeType, ITransaction transaction)`	Clear the cache of the pages within the specified channels recursively.
`void`	`clearCacheByPagesIds(SessionConfig sessionConfig, Collection<String> pagesIds, Map<String,String[]> parameters, Locale locale, int changeType, ITransaction transaction)`	Clear the cache of the specified pages.
`void`	`clearPageCacheErrors(Collection<String> pageCacheIds, ITransaction transaction)`	Clear page cache errors in the database.
`void`	`delete(SessionConfig sessionConfig, String pageCacheId, ITransaction transaction)`	Delete a page cache.
`protected void`	`deleteHtmlFiles(PageCacheConfig pageCache, boolean deleteShadowCacheHtml)`	Delete the HTML cache files for the specified path.
`protected void`	`deleteHtmlFiles(IWebsite website, String filePath, boolean deleteShadowCacheHtml)`	Delete the HTML cache files for the specified path.
`protected PageCacheManager.HttpAccessResult`	`doHttpAccess(URL url, String cookies, PageCacheConfig pageCacheConfig)`
`void`	`enablePageCacheByPageParam(String paramName, String paramValue, Locale locale)`	Enable page cache by a given page parameter name-value pair and locale.
`void`	`expirePageCache(PageCacheConfig pageCacheConfig)`	Expires a single `PageCacheConfig`
`PageCacheConfig`	`generateNextPage(lumis.portal.page.cache.GenerationSelectStrategy generationSelectStrategy)`	Generates next outdated page cache, according to the given strategy.
`PageCacheConfig`	`generatePage(String pageCacheId)`	Generates a page cache.
`protected void`	`generatePage(PageCacheConfig pageCacheConfig)`
`PageCacheConfig`	`get(String pageCacheId)`	Returns a page cache given its identifier.
`protected PageCacheConfig`	`getGenerationLock(String pageCacheId)`	Gets a lock for generating a cached page.
`protected PageCacheConfig`	`getNextPageForGeneration(lumis.portal.page.cache.GenerationSelectStrategy generationSelectStrategy)`	Returns the next page cache to be generated.
`int`	`getPageCacheGenerationState(SessionConfig sessionConfig, ITransaction transaction)`	Deprecated.
`void`	`initializePageCacheConfigurations()`	Initializes page cache related configurations.
`boolean`	`isPageCacheGenerationEnabled()`	Indicates if the page cache generation is globally enabled.
`void`	`pageCacheMissed(String pageCacheId, boolean forImmediateUse)`	Indicates a miss in the page cache occurred.
`String`	`processHTMLForPageCache(String htmlContent, PageCacheConfig pageCache)`	Processes a HTML code for storing for a page cache.
`void`	`recalculateCaches(String channelId)`	Recalculates the attributes for the caches in the portal area inside the specified channel.
`protected void`	`releaseGenerationLock(PageCacheConfig pageCacheConfig, IPageCacheManager.GenerationOutcome outcome)`	Releases the generation lock for a cached page.
`void`	`resetExpiredGeneratingPages()`	Resets all pages that have been in the generating state for more than 30 minutes.
`void`	`setPageCacheGenerationState(SessionConfig sessionConfig, int state, ITransaction transaction)`	Sets the page cache generation state.
`void`	`updateCachedFilesLastModifiedDate(SessionConfig sessionConfig, PageConfig pageConfig, Locale locale, Date lastModifiedDate, ITransaction transaction)`	Updates the last modified date of the cached files that match the given pageId and locale.
`String`	`waitForGeneration(String pageCacheId, long timeout)`	Waits for the generation of a page cache.
`void`	`waitForPagesReadyToGenerate(long timeout, boolean forImmediateUseOnly)`	Waits for new pages to be ready to be generated.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface lumis.portal.page.cache.IPageCacheManager
processHTMLForPageCache

- Field Detail
  - lastExcessiveCleaningTimestamp
```
public static Long lastExcessiveCleaningTimestamp
```
  - PAGE_CACHE_MANAGER_LANGUAGE_FILENAME_PREFIX
```
public static final String PAGE_CACHE_MANAGER_LANGUAGE_FILENAME_PREFIX
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - PageCacheManager
```
public PageCacheManager()
```
- Method Detail
  - expirePageCache
```
public void expirePageCache(PageCacheConfig pageCacheConfig)
                     throws PortalException
```
    Expires a single PageCacheConfig
    
    Specified by:
    
    expirePageCache in interface IPageCacheManager
    
    Parameters:
    
    pageCacheConfig - the page cache to expired.
    
    Throws:
    
    PortalException
    
    Since:
    
    6.1.0
  - waitForGeneration
```
public String waitForGeneration(String pageCacheId,
                                long timeout)
                         throws PortalException,
                                InterruptedException
```
    Description copied from interface: IPageCacheManager
    
    Waits for the generation of a page cache.
    
    Specified by:
    
    waitForGeneration in interface IPageCacheManager
    
    Parameters:
    
    pageCacheId - the page cache identifier.
    
    timeout - maximum time to wait.
    
    Returns:
    
    the generated page content.
    
    Throws:
    
    InterruptedException - if the thread was interrupted.
    
    PortalException
  - waitForPagesReadyToGenerate
```
public void waitForPagesReadyToGenerate(long timeout,
                                        boolean forImmediateUseOnly)
                                 throws InterruptedException
```
    Description copied from interface: IPageCacheManager
    
    Waits for new pages to be ready to be generated.
    
    Specified by:
    
    waitForPagesReadyToGenerate in interface IPageCacheManager
    
    Parameters:
    
    timeout - maximum time to wait.
    
    forImmediateUseOnly - if true, wait until a page for immediate use is ready to generate. If false, wait until any page is ready to generate.
    
    Throws:
    
    InterruptedException - if the thread was interrupted.
  - doHttpAccess
```
protected PageCacheManager.HttpAccessResult doHttpAccess(URL url,
                                                         String cookies,
                                                         PageCacheConfig pageCacheConfig)
                                                  throws UnsupportedEncodingException,
                                                         IOException,
                                                         PortalException,
                                                         lumis.portal.page.cache.ContentNotPublishedException
```
    Throws:
    
    UnsupportedEncodingException
    
    IOException
    
    PortalException
    
    lumis.portal.page.cache.ContentNotPublishedException
  - generatePage
```
protected void generatePage(PageCacheConfig pageCacheConfig)
                     throws ManagerException,
                            PortalException,
                            lumis.portal.page.cache.ContentNotPublishedException
```
    Throws:
    
    ManagerException
    
    PortalException
    
    lumis.portal.page.cache.ContentNotPublishedException
  - generateNextPage
```
public PageCacheConfig generateNextPage(lumis.portal.page.cache.GenerationSelectStrategy generationSelectStrategy)
                                 throws PortalException,
                                        lumis.portal.page.cache.ContentNotPublishedException
```
    Generates next outdated page cache, according to the given strategy. If the generation lock could not be obtained, the page is not generated.
    
    Parameters:
    
    generationSelectStrategy - contains informations for the strategy for selecting the next to be generated.
    
    Returns:
    
    the generated page cache information, or null if the generation lock could not be obtained or if there is no outdated page (as specified in the parameters).
    
    Throws:
    
    lumis.portal.page.cache.ContentNotPublishedException
    
    PortalException
    
    Since:
    
    14.0.0
  - generatePage
```
public PageCacheConfig generatePage(String pageCacheId)
                             throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Generates a page cache. If the generation lock could not be obtained, the page is not generated.
    
    Specified by:
    
    generatePage in interface IPageCacheManager
    
    Parameters:
    
    pageCacheId - the page cache identifier.
    
    Returns:
    
    the generated page cache information, or null if the generation lock could not be obtained.
    
    Throws:
    
    PortalException
  - deleteHtmlFiles
```
protected void deleteHtmlFiles(IWebsite website,
                               String filePath,
                               boolean deleteShadowCacheHtml)
```
    Delete the HTML cache files for the specified path.
    
    Parameters:
    
    website - the website from where the file will be deleted.
    
    filePath - the relative cache file path.
    
    deleteShadowCacheHtml - if true, the shadow cache file is also deleted.
    
    Since:
    
    6.2.0
  - deleteHtmlFiles
```
protected void deleteHtmlFiles(PageCacheConfig pageCache,
                               boolean deleteShadowCacheHtml)
```
    Delete the HTML cache files for the specified path.
    
    Parameters:
    
    pageCache - the page cache that will have its files deleted.
    
    deleteShadowCacheHtml - if true, the shadow cache file is also deleted.
    
    Throws:
    
    IOException
    
    Since:
    
    6.2.0
  - delete
```
public void delete(SessionConfig sessionConfig,
                   String pageCacheId,
                   ITransaction transaction)
            throws ManagerException,
                   PortalException
```
    Description copied from interface: IPageCacheManager
    
    Delete a page cache.
    
    Specified by:
    
    delete in interface IPageCacheManager
    
    Throws:
    
    ManagerException
    
    PortalException
  - get
```
public PageCacheConfig get(String pageCacheId)
                    throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Returns a page cache given its identifier.
    
    Specified by:
    
    get in interface IPageCacheManager
    
    Parameters:
    
    pageCacheId - the page cache identifier.
    
    Returns:
    
    the persistent page cache instance.
    
    Throws:
    
    PortalObjectNotFoundException - if no page cache with the given identifier was found.
    
    PortalException
  - processHTMLForPageCache
```
public String processHTMLForPageCache(String htmlContent,
                                      PageCacheConfig pageCache)
                               throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Processes a HTML code for storing for a page cache.
    
    Specified by:
    
    processHTMLForPageCache in interface IPageCacheManager
    
    Parameters:
    
    htmlContent - HTML code.
    
    pageCache - the page cache the code will be used in.
    
    Returns:
    
    the processed HTML code.
    
    Throws:
    
    PortalException
  - clearCacheByPagesIds
```
public void clearCacheByPagesIds(SessionConfig sessionConfig,
                                 Collection<String> pagesIds,
                                 Map<String,String[]> parameters,
                                 Locale locale,
                                 int changeType,
                                 ITransaction transaction)
                          throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Clear the cache of the specified pages. This method clears the specified pages cache after the transaction commits.
    
    Specified by:
    
    clearCacheByPagesIds in interface IPageCacheManager
    
    Parameters:
    
    sessionConfig - the user session information.
    
    pagesIds - a collection of the pages identifiers.
    
    parameters - the page parameters. Used to filter which caches are cleared.
    
    locale - specifies the locale to which the cache clearing is to be applied. May be null to indicate any locale.
    
    changeType - the cause of the cache clear. Must be one of the CLEAR_CACHE_CHANGE_TYPE_* constants.
    
    transaction - the transaction for persistence access.
    
    Throws:
    
    PortalException
  - clearCacheByChannelIds
```
public void clearCacheByChannelIds(SessionConfig sessionConfig,
                                   Collection<String> channelIds,
                                   Map<String,String[]> parameters,
                                   int changeType,
                                   ITransaction transaction)
                            throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Clear the cache of the pages within the specified channels recursively. This method will clear the specified pages cache after the transaction commits.
    
    Specified by:
    
    clearCacheByChannelIds in interface IPageCacheManager
    
    Parameters:
    
    sessionConfig - the user session information.
    
    parameters - the page parameters. Used to filter which caches are cleared.
    
    changeType - the cause of the cache clear. Must be one of the CLEAR_CACHE_CHANGE_TYPE_* constants.
    
    transaction - the transaction for persistence access.
    
    Throws:
    
    PortalException
  - getPageCacheGenerationState
```
@Deprecated
public int getPageCacheGenerationState(SessionConfig sessionConfig,
                                       ITransaction transaction)
                                throws PortalException
```
    Deprecated.
    
    Description copied from interface: IPageCacheManager
    
    Returns whether page cache generation is enabled or not
    
    Specified by:
    
    getPageCacheGenerationState in interface IPageCacheManager
    
    Returns:
    
    Throws:
    
    PortalException
  - isPageCacheGenerationEnabled
```
public boolean isPageCacheGenerationEnabled()
```
    Description copied from interface: IPageCacheManager
    
    Indicates if the page cache generation is globally enabled.
    
    Specified by:
    
    isPageCacheGenerationEnabled in interface IPageCacheManager
    
    Returns:
    
    true if enabled, false otherwise.
  - setPageCacheGenerationState
```
public void setPageCacheGenerationState(SessionConfig sessionConfig,
                                        int state,
                                        ITransaction transaction)
                                 throws PortalException
```
    Sets the page cache generation state.
    The session provided must have MANAGE_CACHE permission at the portal level in order to execute this method successfully.
    
    Specified by:
    
    setPageCacheGenerationState in interface IPageCacheManager
    
    Parameters:
    
    sessionConfig -
    
    state -
    
    transaction -
    
    Throws:
    
    PortalException
    
    Since:
    
    4.0.11
  - getGenerationLock
```
protected PageCacheConfig getGenerationLock(String pageCacheId)
                                     throws PortalException
```
    Gets a lock for generating a cached page.
    To get a lock successfully, the page cache status must be PageCacheConfig.STATUS_OUTDATED.
    If successful, the page cache status will be changed to PageCacheConfig.STATUS_GENERATING.
    
    Parameters:
    
    pageCacheId - the page cache identifier.
    
    Returns:
    
    the locked page cache, or null if it could not be locked for generation.
    
    Throws:
    
    PortalException
  - releaseGenerationLock
```
protected void releaseGenerationLock(PageCacheConfig pageCacheConfig,
                                     IPageCacheManager.GenerationOutcome outcome)
                              throws PortalException
```
    Releases the generation lock for a cached page.
    According to the outcome argument, the following happens:
    
    IPageCacheManager.GenerationOutcome.SUCCESS: If the current status is generating, it is changed to updated, else it is changed to outdated. The number of errors is reset to zero.
    
    IPageCacheManager.GenerationOutcome.CANCEL: The status is changed to outdated.
    
    IPageCacheManager.GenerationOutcome.ERROR: The number of errors is incremented, and the status is changed to outdated or outdated with error, depending on whether the number of errors reached max error count.
    Parameters:
    
    pageCacheConfig - the page cache.
    
    outcome - the generation outcome.
    
    newStatus - the new status if the current status is generating.
    
    Throws:
    
    PortalException
    
    Since:
    
    4.1.0
  - updateCachedFilesLastModifiedDate
```
public void updateCachedFilesLastModifiedDate(SessionConfig sessionConfig,
                                              PageConfig pageConfig,
                                              Locale locale,
                                              Date lastModifiedDate,
                                              ITransaction transaction)
                                       throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Updates the last modified date of the cached files that match the given pageId and locale.
    
    Specified by:
    
    updateCachedFilesLastModifiedDate in interface IPageCacheManager
    
    Parameters:
    
    sessionConfig - the user session information.
    
    pageConfig - the portal page.
    
    locale - locale for which the cached files needs to be modified.
    
    lastModifiedDate - date to which the matched files must be modified to.
    
    transaction - the transaction for persistence access.
    
    Throws:
    
    PortalException
  - pageCacheMissed
```
public void pageCacheMissed(String pageCacheId,
                            boolean forImmediateUse)
                     throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Indicates a miss in the page cache occurred. This provokes an asynchronous page cache generation and causes an increase in its priority due to the interest in accessing it.
    
    Specified by:
    
    pageCacheMissed in interface IPageCacheManager
    
    Parameters:
    
    pageCacheId - the page cache identifier.
    
    forImmediateUse - if true, indicates that the missed page cache is required for immediate use. This will greater boost the priority to generate the corresponding page cache.
    
    Throws:
    
    PortalException
  - getNextPageForGeneration
```
protected PageCacheConfig getNextPageForGeneration(lumis.portal.page.cache.GenerationSelectStrategy generationSelectStrategy)
                                            throws PortalException
```
    Returns the next page cache to be generated. It is locked for generation before being returned.
    
    Parameters:
    
    generationSelectStrategy - the strategy to select the cache to be generated.
    
    Returns:
    
    the next page cache to be generated, or null if no suitable page was found.
    
    Throws:
    
    PortalException
    
    Since:
    
    6.0.0
    
    See Also:
    
    #getGenerationLock(PageCacheConfig), #releaseGenerationLock(PageCacheConfig, int)
  - clearAllHTMLCache
```
public void clearAllHTMLCache(ITransaction transaction)
                       throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Clears all page HTML cache.
    
    Specified by:
    
    clearAllHTMLCache in interface IPageCacheManager
    
    Parameters:
    
    transaction - the transaction for persistence access.
    
    Throws:
    
    PortalException
  - clearPageCacheErrors
```
public void clearPageCacheErrors(Collection<String> pageCacheIds,
                                 ITransaction transaction)
                          throws PortalException
```
    Description copied from interface: IPageCacheManager
    
    Clear page cache errors in the database. It is locked for update before being updated.
    
    Specified by:
    
    clearPageCacheErrors in interface IPageCacheManager
    
    Parameters:
    
    pageCacheIds - the page cache identifiers.
    
    transaction - the transaction for persistence access.
    
    Throws:
    
    PortalException
  - initializePageCacheConfigurations
```
public void initializePageCacheConfigurations()
```
    Initializes page cache related configurations.
    Populates the database with the page cache related default configurations.
    
    Since:
    
    6.0.0
  - recalculateCaches
```
public void recalculateCaches(String channelId)
                       throws PortalException
```
    Recalculates the attributes for the caches in the portal area inside the specified channel.
    
    Parameters:
    
    channelId - the channel identifier.
    
    Throws:
    
    PortalException
    
    Since:
    
    6.0.0
  - resetExpiredGeneratingPages
```
public void resetExpiredGeneratingPages()
                                 throws PortalException
```
    Description copied from interface: IPageCacheManagerSPI
    
    Resets all pages that have been in the generating state for more than 30 minutes.
    
    Specified by:
    
    resetExpiredGeneratingPages in interface IPageCacheManagerSPI
    
    Throws:
    
    PortalException
  - enablePageCacheByPageParam
```
public void enablePageCacheByPageParam(String paramName,
                                       String paramValue,
                                       Locale locale)
```
    Enable page cache by a given page parameter name-value pair and locale.
    
    Parameters:
    
    paramName - the parameter name.
    
    paramValue - the parameter value.
    
    locale - the locale.
    
    Since:
    
    10.2.0

Modifier and Type	Field	Description
`static Long`	`lastExcessiveCleaningTimestamp`
`static String`	`PAGE_CACHE_MANAGER_LANGUAGE_FILENAME_PREFIX`

Class PageCacheManager

Field Summary

Fields inherited from interface lumis.portal.page.cache.IPageCacheManager

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface lumis.portal.page.cache.IPageCacheManager

Field Detail

lastExcessiveCleaningTimestamp

PAGE_CACHE_MANAGER_LANGUAGE_FILENAME_PREFIX

Constructor Detail

PageCacheManager

Method Detail

expirePageCache

waitForGeneration

waitForPagesReadyToGenerate

doHttpAccess

generatePage

generateNextPage

generatePage

deleteHtmlFiles

deleteHtmlFiles

delete

get

processHTMLForPageCache

clearCacheByPagesIds

clearCacheByChannelIds

getPageCacheGenerationState

isPageCacheGenerationEnabled

setPageCacheGenerationState

getGenerationLock

releaseGenerationLock

updateCachedFilesLastModifiedDate

pageCacheMissed

getNextPageForGeneration

clearAllHTMLCache

clearPageCacheErrors

initializePageCacheConfigurations

recalculateCaches

resetExpiredGeneratingPages

enablePageCacheByPageParam