com.basecmp.taglibs.core
Class GetCacheStateTag

java.lang.Object
  TagSupport
      com.basecmp.taglibs.core.AbstractTag
          com.basecmp.taglibs.core.GetCacheStateTag

public class GetCacheStateTag

extends com.basecmp.taglibs.core.AbstractTag

Liest via Prepared Statement aus der Live-DB, ob die Seite gecacht ist und setzt ein entsprechendes Flag im PageContext unter dem Namen 'CacheState'. Created on 01.11.2005

See Also:

Serialized Form

Author:

Wolfgang Schröder

Field Summary

static java.lang.String	CACHE_STATE_ATTRIBUTE_NAME
java.lang.String	cid

Constructor Summary

GetCacheStateTag()

Method Summary

protected java.lang.Long	clientIdBySession() Returns the client-id (CID) from the session-attribute DOMAIN_CLIENT_ID.
protected java.lang.String	determineTagVarName(java.lang.String var)
protected java.lang.String	determineTagVarName(java.lang.String var, java.lang.String defaultName)
int	doEndTag()
protected java.lang.Long	domainIdByHttpHeader() Returns the domain-id (CID) using the Http-HOST-Header.
protected java.lang.Long	domainIdBySession() Returns the domain-id (CID) from the session-attribute USER_VIEWING_DOMAIN_ID.
protected java.lang.String	domainNameByHttpHeader() Returns the domain-name from the current request-header (HOST-header).
protected java.lang.String	domainNameBySession() Returns the domain-name from the session-attribute USER_VIEWING_DOMAIN.
int	doStartTag()
static java.util.List	getAssetListForPage(int currentPageNo, PersistentAsset listDefinition, java.util.List listAssets) Extrahiert die Assets einer "Seite" aus einer Assetliste (ArrayList mit PersistentAssets) die Assets der aktuell darzustellenden Seite.
java.lang.String	getCid()
static java.lang.String	getErrorMsg(java.lang.String header, java.lang.String message)
protected static java.util.Map	getWrappedAsset(java.lang.Object asset, java.lang.String index)
protected PersistentAsset	retrievePersistentAsset(java.lang.Object requestedAsset)
void	setCid(java.lang.String cid)
protected void	write(java.lang.String jspout) Helper-Method to simplify writing content into th current page-delivery.
protected void	writeErrorMsg(java.lang.String header, java.lang.String message)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CACHE_STATE_ATTRIBUTE_NAME

public static final java.lang.String CACHE_STATE_ATTRIBUTE_NAME

See Also:

Constant Field Values

cid

public java.lang.String cid

Constructor Detail

GetCacheStateTag

public GetCacheStateTag()

Method Detail

doEndTag

public int doEndTag()
             throws JspException

Throws:

JspException

doStartTag

public int doStartTag()
               throws JspException

Throws:

JspException

getCid

public java.lang.String getCid()

setCid

public void setCid(java.lang.String cid)

clientIdBySession

protected java.lang.Long clientIdBySession()

Returns the client-id (CID) from the session-attribute DOMAIN_CLIENT_ID.

See Also:

SessionConstants#DOMAIN_CLIENT_ID

determineTagVarName

protected java.lang.String determineTagVarName(java.lang.String var)

determineTagVarName

protected java.lang.String determineTagVarName(java.lang.String var,
                                               java.lang.String defaultName)

domainIdByHttpHeader

protected java.lang.Long domainIdByHttpHeader()

Returns the domain-id (CID) using the Http-HOST-Header.

domainIdBySession

protected java.lang.Long domainIdBySession()

Returns the domain-id (CID) from the session-attribute USER_VIEWING_DOMAIN_ID.

See Also:

SessionConstants#USER_VIEWING_DOMAIN_ID

domainNameByHttpHeader

protected java.lang.String domainNameByHttpHeader()

Returns the domain-name from the current request-header (HOST-header). In case the header contains an http-port, the port is striped off.

domainNameBySession

protected java.lang.String domainNameBySession()

Returns the domain-name from the session-attribute USER_VIEWING_DOMAIN.

See Also:

SessionConstants#USER_VIEWING_DOMAIN

getAssetListForPage

public static java.util.List getAssetListForPage(int currentPageNo,
                                                 PersistentAsset listDefinition,
                                                 java.util.List listAssets)

Extrahiert die Assets einer "Seite" aus einer Assetliste (ArrayList mit PersistentAssets) die Assets der aktuell darzustellenden Seite.

Eine leere Liste wird zurückgegeben, wenn...

• 'listDefinition' null ist.
• die angeforderte Seite 'currentPageNo' nicht existiert (page out of range).

Parameters:

currentPageNo - aktuelle Seitennummer (Seiten-Zählung beginnt mit 0)

listDefinition - Metadaten-Listasset

listAssets - alle Assets einer Liste

getErrorMsg

public static java.lang.String getErrorMsg(java.lang.String header,
                                           java.lang.String message)

getWrappedAsset

protected static java.util.Map getWrappedAsset(java.lang.Object asset,
                                               java.lang.String index)

retrievePersistentAsset

protected PersistentAsset retrievePersistentAsset(java.lang.Object requestedAsset)
                                           throws java.lang.Exception

Throws:

java.lang.Exception

write

protected void write(java.lang.String jspout)

Helper-Method to simplify writing content into th current page-delivery.

Parameters:

jspout - the content to write.

writeErrorMsg

protected void writeErrorMsg(java.lang.String header,
                             java.lang.String message)