java.lang.Object
- org.forgerock.services.context.AbstractContext

All Implemented Interfaces:

Context

Direct Known Subclasses:

AdviceContext, ApiVersionRouterContext, AttributesContext, ClientContext, MessageContextImpl, OAuth2Context, RequestAuditContext, RootContext, SecurityContext, SelfServiceContext, SessionContext, TransactionIdContext, UriRouterContext
```
public abstract class AbstractContext
extends Object
implements Context
```
A base implementation of the Context interface. Derived Contexts MUST support persistence by providing
- a public constructor having the same declaration as AbstractContext(JsonValue, ClassLoader)
- a public method having the same declaration as Context.toJsonValue()
See the documentation for more details.
Here is an example of the JSON representation of the core attributes of all contexts:
```
 {
   "id"     : "56f0fb7e-3837-464d-b9ec-9d3b6af665c3",
   "class"  : ...Java class name..,
   "parent" : {
       ...
   }
 }
 
```

Field Summary

Fields
Modifier and Type Field Description

protected JsonValue data
The Context data.

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`AbstractContext(String id, String name, Context parent)`	Constructs a new `AbstractContext`.
	`AbstractContext(JsonValue savedContext, ClassLoader classLoader)`	Creates a new context from the JSON representation of a previously persisted context.
`protected`	`AbstractContext(Context parent, String name)`	Constructs a new `AbstractContext` with a `null` `id`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T extends Context> Optional<T>`	`as(Class<T> clazz)`	Returns an @{link Optional} which contains the first context in the chain whose type is a sub-type of the provided `Context` class if one exists, or an empty optional if none is present.
`<T extends Context> T`	`asContext(Class<T> clazz)`	Returns the first context in the chain whose type is a sub-type of the provided `Context` class.
`boolean`	`containsContext(Class<? extends Context> clazz)`	Returns `true` if there is a context in the chain whose type is a sub-type of the provided `Context` class.
`boolean`	`containsContext(String contextName)`	Returns `true` if there is a context in the chain whose name matches the provided context name.
`Optional<Context>`	`get(String contextName)`	Returns an `Optional` containing the first context in the chain whose context name matches the provided name, or an empty `Optional` if none is present.
`Context`	`getContext(String contextName)`	Returns the first context in the chain whose context name matches the provided name.
`String`	`getContextName()`	Get this Context's name.
`String`	`getId()`	Returns the unique ID identifying this context, usually a UUID.
`Context`	`getParent()`	Returns the parent of this context.
`String`	`getRootId()`	Returns the unique ID of the root context, usually a UUID.
`boolean`	`isRootContext()`	Returns `true` if this context is a root context.
`JsonValue`	`toJsonValue()`	Return this Context as a JsonValue (for persistence).
`String`	`toString()`

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

- Field Detail
  - data
```
protected final JsonValue data
```
    The Context data.
- Constructor Detail
  - AbstractContext
```
protected AbstractContext(Context parent,
                          String name)
```
    Constructs a new AbstractContext with a null id.
    
    Parameters:
    
    parent - The parent context.
    
    name - The name of the context.
  - AbstractContext
```
protected AbstractContext(String id,
                          String name,
                          Context parent)
```
    Constructs a new AbstractContext.
    
    Parameters:
    
    id - The id of the context.
    
    parent - The parent context.
    
    name - The name of the context.
  - AbstractContext
```
public AbstractContext(JsonValue savedContext,
                       ClassLoader classLoader)
```
    Creates a new context from the JSON representation of a previously persisted context.
    Sub-classes MUST provide a constructor having the same declaration as this constructor in order to support persistence. Implementations MUST take care to invoke the super class implementation before parsing their own context attributes. Below is an example implementation for a security context which stores the user name and password of the authenticated user:
    protected SecurityContext(JsonValue savedContext, ClassLoader classLoader) { // Invoke the super-class implementation first. super(savedContext, classLoader); // Now parse the attributes for this context. this.username = savedContext.get("username").required().asString(); this.password = savedContext.get("password").required().asString(); }
    In order to create a context's persisted JSON representation, implementations must override.
    Parameters:
    
    savedContext - The JSON representation from which this context's attributes should be parsed.
    
    classLoader - The ClassLoader which can properly resolve the persisted class-name.
- Method Detail
  - getContextName
```
public final String getContextName()
```
    Description copied from interface: Context
    
    Get this Context's name.
    
    Specified by:
    
    getContextName in interface Context
    
    Returns:
    
    this object's name
  - asContext
```
public final <T extends Context> T asContext(Class<T> clazz)
```
    Description copied from interface: Context
    
    Returns the first context in the chain whose type is a sub-type of the provided Context class. The method first checks this context to see if it has the required type, before proceeding to the parent context, and then continuing up the chain of parents until the root context is reached.
    
    Specified by:
    
    asContext in interface Context
    
    Type Parameters:
    
    T - The context type.
    
    Parameters:
    
    clazz - The class of context to be returned.
    
    Returns:
    
    The first context in the chain whose type is a sub-type of the provided Context class.
  - as
```
public final <T extends Context> Optional<T> as(Class<T> clazz)
```
    Description copied from interface: Context
    
    Returns an @{link Optional} which contains the first context in the chain whose type is a sub-type of the provided Context class if one exists, or an empty optional if none is present. The method first checks this context to see if it has the required type, before proceeding to the parent context, and then continuing up the chain of parents until the root context is reached.
    
    Specified by:
    
    as in interface Context
    
    Type Parameters:
    
    T - The context type.
    
    Parameters:
    
    clazz - The class of context to be returned.
    
    Returns:
    
    An Optional containing the first context in the chain whose type is a sub-type of the provided Context class, or an empty optional if no such Context exists in the chain.
  - getContext
```
public final Context getContext(String contextName)
```
    Description copied from interface: Context
    
    Returns the first context in the chain whose context name matches the provided name.
    
    Specified by:
    
    getContext in interface Context
    
    Parameters:
    
    contextName - The name of the context to be returned.
    
    Returns:
    
    The first context in the chain whose name matches the provided context name.
  - get
```
public Optional<Context> get(String contextName)
```
    Description copied from interface: Context
    
    Returns an Optional containing the first context in the chain whose context name matches the provided name, or an empty Optional if none is present.
    
    Specified by:
    
    get in interface Context
    
    Parameters:
    
    contextName - The name of the context to be returned.
    
    Returns:
    
    An Optional containing the first context in the chain whose name matches the provided context name, an empty optional if none is present.
  - containsContext
```
public final boolean containsContext(Class<? extends Context> clazz)
```
    Description copied from interface: Context
    
    Returns true if there is a context in the chain whose type is a sub-type of the provided Context class. The method first checks this context to see if it has the required type, before proceeding to the parent context, and then continuing up the chain of parents until the root context is reached.
    
    Specified by:
    
    containsContext in interface Context
    
    Parameters:
    
    clazz - The class of context to be checked.
    
    Returns:
    
    true if there is a context in the chain whose type is a sub-type of the provided Context class.
  - containsContext
```
public final boolean containsContext(String contextName)
```
    Description copied from interface: Context
    
    Returns true if there is a context in the chain whose name matches the provided context name.
    
    Specified by:
    
    containsContext in interface Context
    
    Parameters:
    
    contextName - The name of the context to locate.
    
    Returns:
    
    true if there is a context in the chain whose context name matches contextName.
  - getId
```
public final String getId()
```
    Description copied from interface: Context
    
    Returns the unique ID identifying this context, usually a UUID. If no ID has been defined then the ID of the parent context will be returned.
    
    Specified by:
    
    getId in interface Context
    
    Returns:
    
    The unique ID identifying this context. If no ID has been defined then the ID of the parent context will be returned.
  - getRootId
```
public String getRootId()
```
    Description copied from interface: Context
    
    Returns the unique ID of the root context, usually a UUID.
    
    Specified by:
    
    getRootId in interface Context
    
    Returns:
    
    The unique ID of the root context.
  - getParent
```
public final Context getParent()
```
    Description copied from interface: Context
    
    Returns the parent of this context.
    
    Specified by:
    
    getParent in interface Context
    
    Returns:
    
    The parent of this context, or null if this context is a root context.
  - isRootContext
```
public final boolean isRootContext()
```
    Description copied from interface: Context
    
    Returns true if this context is a root context.
    
    Specified by:
    
    isRootContext in interface Context
    
    Returns:
    
    true if this context is a root context.
  - toJsonValue
```
public JsonValue toJsonValue()
```
    Description copied from interface: Context
    
    Return this Context as a JsonValue (for persistence).
    
    Specified by:
    
    toJsonValue in interface Context
    
    Returns:
    
    the Context data as a JsonValue.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class AbstractContext

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

data

Constructor Detail

AbstractContext

AbstractContext

AbstractContext

Method Detail

getContextName

asContext

as

getContext

get

containsContext

containsContext

getId

getRootId

getParent

isRootContext

toJsonValue

toString