org.sakaiproject.entitybroker.rest
Class EntityHandlerImpl

java.lang.Object
  org.sakaiproject.entitybroker.rest.EntityHandlerImpl

All Implemented Interfaces:

EntityRequestHandler

public class EntityHandlerImpl
extends Object
implements EntityRequestHandler

Implementation of the handler for the EntityBroker system
This handles all the processing of incoming requests (http based) and includes method to process the request data and ensure classloader safety

Author:

Aaron Zeckoski (aaronz@vt.edu)

Field Summary

static String	APP_VERSION
static String	SVN_LAST_UPDATE
static String	SVN_REVISION

Fields inherited from interface org.sakaiproject.entitybroker.providers.EntityRequestHandler

BATCH, COMPENSATE_METHOD, DESCRIBE, FAKE_ID, HEADER_ENTITY_ID, HEADER_ENTITY_REFERENCE, HEADER_ENTITY_URL, SLASH_BATCH, SLASH_DESCRIBE

Constructor Summary

protected

EntityHandlerImpl() Empty constructor

EntityHandlerImpl(EntityProviderManager entityProviderManager, EntityBrokerManager entityBrokerManager, EntityEncodingManager entityEncodingManager, EntityDescriptionManager entityDescriptionManager, EntityViewAccessProviderManager entityViewAccessProviderManager, RequestGetterWrite requestGetter, EntityActionsManager entityActionsManager, EntityRedirectsManager entityRedirectsManager, EntityBatchHandler entityBatchHandler, RequestStorageWrite requestStorage) Full constructor

Method Summary

protected void	addResponseHeaders(javax.servlet.http.HttpServletResponse res, Map<String,String> headers) Adds in headers to the response as needed
EntityResponse	fireEntityRequestInternal(String reference, String viewKey, String format, Map<String,String> params, Object entity)
String	getServletContext()
String	handleEntityAccess(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, String path) If this param is set then the sakai session for the current request is set to this rather than establishing one, will allow changing the session as well
String	handleEntityError(javax.servlet.http.HttpServletRequest req, Throwable error)
void	init()
void	setAccessProviderManager(HttpServletAccessProviderManager accessProviderManager)
void	setEntityActionsManager(EntityActionsManager entityActionsManager)
void	setEntityBatchHandler(EntityBatchHandler entityBatchHandler)
void	setEntityBrokerManager(EntityBrokerManager entityBrokerManager)
void	setEntityDescriptionManager(EntityDescriptionManager entityDescriptionManager)
void	setEntityEncodingManager(EntityEncodingManager entityEncodingManager)
void	setEntityProviderManager(EntityProviderManager entityProviderManager)
void	setEntityRedirectsManager(EntityRedirectsManager entityRedirectsManager)
void	setEntityViewAccessProviderManager(EntityViewAccessProviderManager entityViewAccessProviderManager)
protected void	setLastModifiedHeaders(javax.servlet.http.HttpServletResponse res, EntityData ed, long lastModifiedTime)
protected void	setNoCacheHeaders(javax.servlet.http.HttpServletResponse res) Force a response to be set for no caching, can be run after other headers are set
void	setRequestGetter(RequestGetterWrite requestGetter)
void	setRequestStorage(RequestStorageWrite requestStorage)
protected void	setResponseHeaders(EntityView view, javax.servlet.http.HttpServletResponse res, Map<String,Object> params, Map<String,String> headers) Correctly sets up the basic headers for every response, allows setting caching to be disabled by using the nocache or no-cache param
void	setServletContext(String servletContext)

Methods inherited from class java.lang.Object

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

Field Detail

APP_VERSION

public static String APP_VERSION

SVN_REVISION

public static String SVN_REVISION

SVN_LAST_UPDATE

public static String SVN_LAST_UPDATE

Constructor Detail

EntityHandlerImpl

protected EntityHandlerImpl()

Empty constructor

EntityHandlerImpl

public EntityHandlerImpl(EntityProviderManager entityProviderManager,
                         EntityBrokerManager entityBrokerManager,
                         EntityEncodingManager entityEncodingManager,
                         EntityDescriptionManager entityDescriptionManager,
                         EntityViewAccessProviderManager entityViewAccessProviderManager,
                         RequestGetterWrite requestGetter,
                         EntityActionsManager entityActionsManager,
                         EntityRedirectsManager entityRedirectsManager,
                         EntityBatchHandler entityBatchHandler,
                         RequestStorageWrite requestStorage)

Full constructor

Method Detail

init

public void init()

setEntityProviderManager

public void setEntityProviderManager(EntityProviderManager entityProviderManager)

setEntityBrokerManager

public void setEntityBrokerManager(EntityBrokerManager entityBrokerManager)

setEntityEncodingManager

public void setEntityEncodingManager(EntityEncodingManager entityEncodingManager)

setEntityDescriptionManager

public void setEntityDescriptionManager(EntityDescriptionManager entityDescriptionManager)

setAccessProviderManager

public void setAccessProviderManager(HttpServletAccessProviderManager accessProviderManager)

setEntityViewAccessProviderManager

public void setEntityViewAccessProviderManager(EntityViewAccessProviderManager entityViewAccessProviderManager)

setRequestGetter

public void setRequestGetter(RequestGetterWrite requestGetter)

setEntityActionsManager

public void setEntityActionsManager(EntityActionsManager entityActionsManager)

setEntityRedirectsManager

public void setEntityRedirectsManager(EntityRedirectsManager entityRedirectsManager)

setEntityBatchHandler

public void setEntityBatchHandler(EntityBatchHandler entityBatchHandler)

setRequestStorage

public void setRequestStorage(RequestStorageWrite requestStorage)

getServletContext

public String getServletContext()

setServletContext

public void setServletContext(String servletContext)

handleEntityAccess

public String handleEntityAccess(javax.servlet.http.HttpServletRequest req,
                                 javax.servlet.http.HttpServletResponse res,
                                 String path)

If this param is set then the sakai session for the current request is set to this rather than establishing one, will allow changing the session as well

Specified by:

handleEntityAccess in interface EntityRequestHandler

fireEntityRequestInternal

public EntityResponse fireEntityRequestInternal(String reference,
                                                String viewKey,
                                                String format,
                                                Map<String,String> params,
                                                Object entity)

See Also:

EntityBroker.fireEntityRequest(String, String, String, Map, Object)

handleEntityError

public String handleEntityError(javax.servlet.http.HttpServletRequest req,
                                Throwable error)

Specified by:

handleEntityError in interface EntityRequestHandler

setNoCacheHeaders

protected void setNoCacheHeaders(javax.servlet.http.HttpServletResponse res)

Force a response to be set for no caching, can be run after other headers are set

Parameters:

res - the response

setResponseHeaders

protected void setResponseHeaders(EntityView view,
                                  javax.servlet.http.HttpServletResponse res,
                                  Map<String,Object> params,
                                  Map<String,String> headers)

Correctly sets up the basic headers for every response, allows setting caching to be disabled by using the nocache or no-cache param

Parameters:

view -

res -

params -

headers - any headers to add on

addResponseHeaders

protected void addResponseHeaders(javax.servlet.http.HttpServletResponse res,
                                  Map<String,String> headers)

Adds in headers to the response as needed

Parameters:

res -

headers -

setLastModifiedHeaders

protected void setLastModifiedHeaders(javax.servlet.http.HttpServletResponse res,
                                      EntityData ed,
                                      long lastModifiedTime)

Parameters:

res - the response

lastModifiedTime - the time to use if none is found any other way

ed - (optional) some entity data if available