Package org.sakaiproject.entitybroker.entityprovider.extension

Interface RequestStorage

All Known Subinterfaces:

RequestStorageWrite

public interface RequestStorage

This allows access to values which are stored in the current request thread, these values are inaccessible outside of a request and will be destroyed when the thread ends
This also "magically" exposes all the values in the request (attributes and params) as if they were stored in the map as well, if there are conflicts then locally stored data always wins over data from the request
Standard reserved keys have values that are always available:

• _locale : Locale
• _requestEntityReference : String
• _requestActive : [true,false]
• _requestOrigin : ['REST','EXTERNAL','INTERNAL']

Author:

Aaron Zeckoski (azeckoski @ gmail.com)

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	RequestStorage.RequestOrigin	Indicates the origin of the current request
static class	RequestStorage.ReservedKeys	Reserved keys with special data in them, see RequestStorage

Method Summary

Modifier and Type	Method	Description
Map<String,Object>	getStorageMapCopy()	Get the data as a map for easy access to the full set of keys/values, this is a copy and changing it has no effect on the data in the request
Map<String,Object>	getStorageMapCopy(boolean includeInternal, boolean includeHeaders, boolean includeParams, boolean includeAttributes)	Special version which allows getting only the parts that are desired
Object	getStoredValue(String key)	Get a value that is stored in the request for a specific key
<T> T	getStoredValueAsType(Class<T> type, String key)

Method Detail

getStorageMapCopy

Map<String,Object> getStorageMapCopy()

Get the data as a map for easy access to the full set of keys/values, this is a copy and changing it has no effect on the data in the request

Returns:

a copy of the internal storage of request keys and values as a map, may be empty but will not be null

getStorageMapCopy

Map<String,Object> getStorageMapCopy(boolean includeInternal,
                                           boolean includeHeaders,
                                           boolean includeParams,
                                           boolean includeAttributes)

Special version which allows getting only the parts that are desired

Parameters:

includeInternal - include the internal request values

includeHeaders - include the request headers

includeParams - include the request parameters

includeAttributes - include the request attributes

Returns:

the map with the requested values

getStoredValue

Object getStoredValue(String key)

Get a value that is stored in the request for a specific key

Parameters:

key - a key for a stored value

Returns:

the stored value if found OR null if not found

Throws:

IllegalArgumentException - if the key is null

getStoredValueAsType

<T> T getStoredValueAsType(Class<T> type,
                           String key)

Type Parameters:

T -

Parameters:

type - an object type to attempt to convert the object to

key - a key for the stored value

Returns:

the stored value converted to the requested type OR null if none found

Throws:

IllegalArgumentException - if the type or key is null

IllegalFormatConversionException - if the conversion cannot be completed