atg.commerce.catalog.custom
Class CatalogItemLookupDroplet

java.lang.Object
  atg.nucleus.logging.VariableArgumentApplicationLoggingImpl
      atg.nucleus.GenericService
          atg.nucleus.TimedOperationService
              atg.nucleus.servlet.ServletService
                  atg.nucleus.servlet.HttpServletService
                      atg.servlet.DynamoServlet
                          atg.repository.servlet.ItemLookupDroplet
                              atg.commerce.catalog.custom.CatalogItemLookupDroplet

All Implemented Interfaces:

atg.naming.AbsoluteNameable, NameContextBindingListener, NameContextElement, atg.naming.NameContextParentable, NameResolver, AdminableService, atg.nucleus.Configured, ApplicationLogging, atg.nucleus.logging.ApplicationLoggingSender, atg.nucleus.logging.TraceApplicationLogging, VariableArgumentApplicationLogging, ComponentNameResolver, Service, ServiceListener, ParameterServlet, java.util.EventListener, javax.servlet.Servlet

public class CatalogItemLookupDroplet
extends ItemLookupDroplet

This servlet looks for a RepositoryItem by its id from within a Repository. If the item is found, then it will check whether the item belongs to the user's catalog in his current Profile and if the item belongs to the current site. If it does, output is rendered. If the item is not found, empty is rendered. If it is not found on the current site then wrongSite is rendered. If it does not belong to the user's catalog, wrongCatalog is rendered. It checks this by looking at the item's "catalogs" property and "sites" property. If the item has no "catalogs" and no "sites" property then this class behaves the same as the superclass.

The repository and item descriptor type can be configured through properties. If the useParams property is true, then the repository and item descriptor can be resolved through input parameters.

One can configure this droplet to define a mapping from a key to an alternate set of repositories.
For example: ProductLookup.properties

 $class=atg.commerce.catalog.custom.CatalogItemLookupDroplet
 
 repository=/atg/commerce/catalog/ProductCatalog
 itemDescriptor=product
 
 alternateRepositories=\
      fr_FR=/atg/commerce/catalog/FrenchProductCatalog
      ja_JP=/atg/commerce/catalog/JapaneseProductCatalog
      de_DE=/atg/commerce/catalog/GermanProductCatalog
 

The invocation of the droplet can then be invoked with the following parameters:

 <DROPLET bean="ProductLookup">
 <PARAM NAME="id" VALUE="param:productId">
 <PARAM NAME="repositoryKey" value="bean:/OriginatingRequest.requestLocale.localeString">
 <PARAM name="elementName" value="product">
 <OPARAM NAME="output">
   <a href="param:product.template.url">
     <param name="prod_id" value="param:product.repositoryId">
     <valueof param="product.displayName"></valueof>
   </a>
 </OPARAM>
 </DROPLET>
 

If the mapping for the provided key is found that repository will be used, otherwise the system will fall back to the default repository and search for the item.

If the item cannot be found in the repository searched (e.g. the french product catalog), then the droplet will once again fall back to the default repository and attempt to find the item using the same id. Obviously this is only useful if the items have the exact same id in each repository.

In this example if you are french and attempt to look at product 1234, and product 1234 is defined in the french product catalog you will see that item. However if 1234 is not defined then you will see the default english version of 1234.

This behavior can be modified with use of the useDefaultRepository and getDefaultItem properties. If useDefaultRepository is false and an alternate repository cannot be found, then no repository is searched and empty is serviced. Like wise, if an alternative repository is selected, but the item cannot be found, and if getDefaultItem is false, then the default repository will not be searched and empty will be serviced.

The required input paramters for this servlet are:

id

The id of the item to lookup

The following parameters are optional:

repositoryKey

If specified this parameter will be used as a key to map to a secondary set of repositories.

elementName

This parameter can be used to change the default name of the element which is bound into the scope of the output oparam.

repository

The repository within which to look for the item. It is recommended to not use this parameter and to define different instances of the CatalogItemLookupDroplet for each set of repositories you wish to use.

itemDescriptor

The name of the Item Descriptor to use to load the item. It is recommended to not use this parameter and to setup the item descriptor through property configuration.

catalog

The catalog to look for the item in. This is normally not needed since the catalog that is in the current user's profile will be used. If however, you want to search in a catalog other than the current catalog, or there is no current session (for example within the context of an email template) then you may want to explicitly provide the catalog. This must be a repository item.

catalogs

The set of catalogs to look for the item in. The item must be a memeber of at least one of the catalogs. This parameter supercedes the catalog parameter.

sites

The sites to look for the item in. This is normally not needed since the current site will be used. If however, you want to search in a site other than the current site, or there is no current session (for example within the context of an email template) then you may want to explicitly provide the site. If you provide more than one site, the item must be a member of at least one of the sites. This must be a Collection of Site objects.

filterByCatalog

Whether or not the item should match the specified catalog(s). If set to false then the item will not be checked against any catalog.

filterBySite

Whether or not the item should match the specified site(s). If set to false then the item will not be checked against any site.

The output parameters for this servlet are:

output

Rendered if the item was found in the repository

element

Set to the RepositoryItem corresponding to the id supplied

wrongSite

This gets rendered if the item being looked up is not accessible through the current user's site. The item is still accessible if you need it.

wrongCatalog

This gets rendered if the item being looked up is not accessible through the current user's catalog. The item is still accessible if you need it.

noCatalog

This gets rendered if the current user does not have a catalog and the catalog input parameter was not specified.

error

Any exception that may have occurred while looking up the item

empty

Rendered in all other cases, e.g. item not found, user did not specify a required parameter.

Field Summary

static java.lang.String

CLASS_VERSION Class version string

Fields inherited from class atg.servlet.DynamoServlet

mAllowCleanupRequest, mParameters

Fields inherited from class atg.nucleus.servlet.ServletService

SERVLET_INFO_KEY

Fields inherited from class atg.nucleus.GenericService

SERVICE_INFO_KEY

Fields inherited from interface atg.nucleus.logging.TraceApplicationLogging

DEFAULT_LOG_TRACE_STATUS

Fields inherited from interface atg.nucleus.logging.ApplicationLogging

DEFAULT_LOG_DEBUG_STATUS, DEFAULT_LOG_ERROR_STATUS, DEFAULT_LOG_INFO_STATUS, DEFAULT_LOG_WARNING_STATUS

Constructor Summary

CatalogItemLookupDroplet()

Method Summary

protected RepositoryItem	findItem(java.lang.String pId, java.lang.String pItemDescriptorName, Repository pRepository) Attempts to find an item in the given repository based on Id and Item descriptor.
protected java.util.Collection<RepositoryItem>	getCatalogs(DynamoHttpServletRequest pRequest) Returns catalogs from request parameters.
RepositoryItem	getProfile() Returns property Profile
protected Repository	getRepository(DynamoHttpServletRequest pRequest) Returns repository.
protected Repository	getRepositoryForCatalogItemLookup(java.lang.String pRepositoryKey) Gets the specified alternate repository if available, otherwise returns the defaults repository.
protected java.util.Collection<Site>	getSites(DynamoHttpServletRequest pRequest) If we have collection of sites in request parameter, then returns them, otherwise returns null.
java.lang.String	getSitesPropertyName() Returns property SitesPropertyName
boolean	isFilterByCatalog() Returns property FilterByCatalog
protected boolean	isFilterByCatalog(DynamoHttpServletRequest pRequest) Returns true if item should filter by catalog.
boolean	isFilterBySite() Returns property FilterBySite
protected boolean	isFilterBySite(DynamoHttpServletRequest pRequest) Determines if we are filtering by sites.
protected boolean	isItemInCatalogs(RepositoryItem pItem, java.util.Collection<RepositoryItem> pCatalogs) Determines if a given item is part of any catalog in the given collection.
protected boolean	isItemInSites(RepositoryItem pItem, java.util.Collection<Site> pSites) Determines if a given item is a part of any sites from the given set or the current site.
void	service(DynamoHttpServletRequest pRequest, DynamoHttpServletResponse pResponse) Look for the RepositoryItem and if found render the output oparam by binding the item as a parameter.
void	setFilterByCatalog(boolean pFilterByCatalogs) Sets property FilterByCatalog
void	setFilterBySite(boolean pFilterBySite) Sets property FilterBySite
void	setSitesPropertyName(java.lang.String pSitesPropertyName) Sets property SitesPropertyName

Methods inherited from class atg.repository.servlet.ItemLookupDroplet

commitTransaction, ensureTransaction, getAlternateRepositories, getItemDescriptor, getRepository, getTransactionManager, isEnsureTransaction, isGetDefaultItem, isUseDefaultRepository, isUseParams, setAlternateRepositories, setEnsureTransaction, setGetDefaultItem, setItemDescriptor, setRepository, setTransactionManager, setUseDefaultRepository, setUseParams

Methods inherited from class atg.servlet.DynamoServlet

doDelete, doGet, doPost, doPut, getParameter, getParameters, getServletContext, init, service, service, setParameter

Methods inherited from class atg.nucleus.servlet.ServletService

destroy, getServletConfig, getServletInfo, setServletInfo

Methods inherited from class atg.nucleus.TimedOperationService

getAverageRequestHandlingTime, getHandledRequestCount, getRequestStartTime, getTotalRequestHandlingTime, isKeepingStatistics, notifyHandledRequest, resetStatistics, setKeepingStatistics

Methods inherited from class atg.nucleus.GenericService

addLogListener, createAdminServlet, doStartService, doStopService, getAbsoluteName, getAdminServlet, getAdminServletOutputStreamEncoding, getLoggingForVlogging, getLogListenerCount, getLogListeners, getName, getNameContext, getNucleus, getRoot, getServiceConfiguration, getServiceInfo, isAdminServletUseServletOutputStream, isLoggingDebug, isLoggingError, isLoggingInfo, isLoggingTrace, isLoggingWarning, isRunning, logDebug, logDebug, logDebug, logError, logError, logError, logInfo, logInfo, logInfo, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, nameContextElementBound, nameContextElementUnbound, removeLogListener, reResolveThis, resolveName, resolveName, resolveName, resolveName, sendLogEvent, setAdminServletOutputStreamEncoding, setAdminServletUseServletOutputStream, setLoggingDebug, setLoggingError, setLoggingInfo, setLoggingTrace, setLoggingWarning, setNucleus, setServiceInfo, startService, stopService

Methods inherited from class atg.nucleus.logging.VariableArgumentApplicationLoggingImpl

vlogDebug, vlogDebug, vlogDebug, vlogDebug, vlogDebugTrace, vlogError, vlogError, vlogError, vlogError, vlogInfo, vlogInfo, vlogInfo, vlogInfo, vlogTrace, vlogTrace, vlogTrace, vlogTrace, vlogWarning, vlogWarning, vlogWarning, vlogWarning

Methods inherited from class java.lang.Object

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

Field Detail

CLASS_VERSION

public static java.lang.String CLASS_VERSION

Class version string

Constructor Detail

CatalogItemLookupDroplet

public CatalogItemLookupDroplet()

Method Detail

getProfile

public RepositoryItem getProfile()

Returns property Profile

setFilterByCatalog

public void setFilterByCatalog(boolean pFilterByCatalogs)

Sets property FilterByCatalog

isFilterByCatalog

public boolean isFilterByCatalog()

Returns property FilterByCatalog

setFilterBySite

public void setFilterBySite(boolean pFilterBySite)

Sets property FilterBySite

isFilterBySite

public boolean isFilterBySite()

Returns property FilterBySite

setSitesPropertyName

public void setSitesPropertyName(java.lang.String pSitesPropertyName)

Sets property SitesPropertyName

getSitesPropertyName

public java.lang.String getSitesPropertyName()

Returns property SitesPropertyName

service

public void service(DynamoHttpServletRequest pRequest,
                    DynamoHttpServletResponse pResponse)
             throws javax.servlet.ServletException,
                    java.io.IOException

Look for the RepositoryItem and if found render the output oparam by binding the item as a parameter. If no item can be found render the empty oparam. If the RepositoryItem is found, but does not belong to the user's catalog, render the wrongCatalog oparam. If no catalog is provided, render the noCatalog oparam. If the item belongs to a site but it is not the current site render the wrongSite property.

Overrides:

service in class ItemLookupDroplet

Parameters:

pRequest - the request to be processed

pResponse - the response object for this request

Throws:

javax.servlet.ServletException - an application specific error occurred processing this request

java.io.IOException - an error occurred reading data from the request or writing data to the response.

findItem

protected RepositoryItem findItem(java.lang.String pId,
                                  java.lang.String pItemDescriptorName,
                                  Repository pRepository)
                           throws RepositoryException

Attempts to find an item in the given repository based on Id and Item descriptor. If the item can not be found in the given repository the default repository will be used to find the item.

Parameters:

pId - - Id of the item to find

pItemDescriptorName - ItemDescriptor for the item

pRepository - Repository to look for the item before using the default repository.

Returns:

The repository item matching the given id and item descriptor.

Throws:

RepositoryException

getRepositoryForCatalogItemLookup

protected Repository getRepositoryForCatalogItemLookup(java.lang.String pRepositoryKey)

Gets the specified alternate repository if available, otherwise returns the defaults repository.

Parameters:

pRepositoryKey - Alternate repository to get

Returns:

the repository to use for Catalog Item Lookup

isItemInCatalogs

protected boolean isItemInCatalogs(RepositoryItem pItem,
                                   java.util.Collection<RepositoryItem> pCatalogs)

Determines if a given item is part of any catalog in the given collection.

Parameters:

pItem - Repository Item to check for membership in a catalog

pCatalogs - Catalogs to check membership for

Returns:

True if the item is in any catalog

isItemInSites

protected boolean isItemInSites(RepositoryItem pItem,
                                java.util.Collection<Site> pSites)

Determines if a given item is a part of any sites from the given set or the current site. If there is no site to check or if the item has no sites property in its definition, return true.

Parameters:

pItem - repository item

pSites - set of sites

Returns:

true if item is a part of any site.

isFilterBySite

protected boolean isFilterBySite(DynamoHttpServletRequest pRequest)

Determines if we are filtering by sites. Acceptable parameters are Boolean and String.

Parameters:

pRequest - Dynamo http request

Returns:

true if we filter item by site

isFilterByCatalog

protected boolean isFilterByCatalog(DynamoHttpServletRequest pRequest)

Returns true if item should filter by catalog. Acceptable parameters are Boolean and String.

Parameters:

pRequest - Dynamo http request

Returns:

true if filter item by catalog

getRepository

protected Repository getRepository(DynamoHttpServletRequest pRequest)

Returns repository. If useParams is true, retrieves repository from request parameters, otherwise calls getRepositoryForCatalogItemLookup method

Parameters:

pRequest - Dynamo http request

Returns:

repository

getCatalogs

protected java.util.Collection<RepositoryItem> getCatalogs(DynamoHttpServletRequest pRequest)

Returns catalogs from request parameters. If no catalogs specified, returns null.

Parameters:

pRequest - Dynamo http request

Returns:

collection of catalog repository items or null

getSites

protected java.util.Collection<Site> getSites(DynamoHttpServletRequest pRequest)

If we have collection of sites in request parameter, then returns them, otherwise returns null.

Parameters:

pRequest - Dynamo http request

Returns:

collection of sites or null