org.red5.server.util

## Class ScopeUtils

- java.lang.Object
- - org.red5.server.util.ScopeUtils

    public class ScopeUtils
    extends Object

Collection of utilities for working with scopes

### Constructor Summary

Constructors
Constructor and Description
`ScopeUtils()`

### Method Summary

Methods
`static IScope` `findApplication(IScope from)` Returns the application scope for specified scope.
`static IScope` `findRoot(IScope from)` Finds root scope for specified scope object.
`static Object` `getScopeService(IScope scope, Class<?> intf)` Returns scope service that implements a given interface.
`static Object` `getScopeService(IScope scope, Class<?> intf, boolean checkHandler)`
`static Object` `getScopeService(IScope scope, Class<?> intf, Class<?> defaultClass)` Returns scope service that implements a given interface.
`static Object` `getScopeService(IScope scope, Class<?> intf, Class<?> defaultClass, boolean checkHandler)`
`protected static Object` `getScopeService(IScope scope, String name)` Returns scope service by bean name.
`protected static Object` `getScopeService(IScope scope, String name, Class<?> defaultClass)` Returns scope services (e.g.
`static boolean` `isAncestor(IBasicScope from, IBasicScope ancestor)` Check whether one scope is an ancestor of another
`static boolean` `isApp(IBasicScope scope)` Check whether scope is an application scope (level 1 leaf in scope tree) or not
`static boolean` `isGlobal(IBasicScope scope)` Check whether scope is the global scope (level 0 leaf in scope tree) or not When user connects the following URL: rtmp://localhost/myapp/foo/bar then / is the global level scope, myapp is app level, foo is room level and bar is room level as well (but with higher depth level)
`static boolean` `isRoom(IBasicScope scope)` Check whether scope is a room scope (level 2 leaf in scope tree or lower, e.g.
`static boolean` `isRoot(IBasicScope scope)` Checks whether scope is root or not
`static IScope` `resolveScope(IScope from, String path)` Resolves scope for specified scope and path.

### Methods inherited from class java.lang.Object

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

### Constructor Detail

#### ScopeUtils

    public ScopeUtils()

### Method Detail

#### resolveScope

    public static IScope resolveScope(IScope from,
                      String path)

Resolves scope for specified scope and path.

Parameters:
  `from` - Scope to use as context (to start from)
  `path` - Path to resolve
Returns:
  Resolved scope

#### findRoot

    public static IScope findRoot(IScope from)

Finds root scope for specified scope object. Root scope is the top level scope among scope's parents.

Parameters:
  `from` - Scope to find root for
Returns:
  Root scope object

#### findApplication

    public static IScope findApplication(IScope from)

Returns the application scope for specified scope. Application scope has depth of 1 and has no parent. See `isApp` method for details.

Parameters:
  `from` - Scope to find application for
Returns:
  Application scope.

#### isAncestor

    public static boolean isAncestor(IBasicScope from,
                     IBasicScope ancestor)

Check whether one scope is an ancestor of another

Parameters:
  `from` - Scope
  `ancestor` - Scope to check
Returns:
  `true` if ancestor scope is really an ancestor of scope passed as from parameter, `false` otherwise.

#### isRoot

    public static boolean isRoot(IBasicScope scope)

Checks whether scope is root or not

Parameters:
  `scope` - Scope to check
Returns:
  `true` if scope is root scope (top level scope), `false` otherwise.

#### isGlobal

    public static boolean isGlobal(IBasicScope scope)

Check whether scope is the global scope (level 0 leaf in scope tree) or not When user connects the following URL: rtmp://localhost/myapp/foo/bar then / is the global level scope, myapp is app level, foo is room level and bar is room level as well (but with higher depth level)

Parameters:
  `scope` - Scope to check
Returns:
  `true` if scope is the global scope, `false` otherwise.

#### isApp

    public static boolean isApp(IBasicScope scope)

Check whether scope is an application scope (level 1 leaf in scope tree) or not

Parameters:
  `scope` - Scope to check
Returns:
  `true` if scope is an application scope, `false` otherwise.

#### isRoom

    public static boolean isRoom(IBasicScope scope)

Check whether scope is a room scope (level 2 leaf in scope tree or lower, e.g. 3, 4, ...) or not

Parameters:
  `scope` - Scope to check
Returns:
  `true` if scope is a room scope, `false` otherwise.

#### getScopeService

    protected static Object getScopeService(IScope scope,
                         String name)

Returns scope service by bean name. See overloaded method for details.

Parameters:
  `scope` - scope
  `name` - name
Returns:
  object

#### getScopeService

    protected static Object getScopeService(IScope scope,
                         String name,
                         Class<?> defaultClass)

Returns scope services (e.g. SharedObject, etc) for the scope. Method uses either bean name passes as a string or class object.

Parameters:
  `scope` - The scope service belongs to
  `name` - Bean name
  `defaultClass` - Class of service
Returns:
  Service object

#### getScopeService

    public static Object getScopeService(IScope scope,
                         Class<?> intf)

Returns scope service that implements a given interface.

Parameters:
  `scope` - The scope service belongs to
  `intf` - The interface the service must implement
Returns:
  Service object

#### getScopeService

    public static Object getScopeService(IScope scope,
                         Class<?> intf,
                         boolean checkHandler)

#### getScopeService

    public static Object getScopeService(IScope scope,
                         Class<?> intf,
                         Class<?> defaultClass)

Returns scope service that implements a given interface.

Parameters:
  `scope` - The scope service belongs to
  `intf` - The interface the service must implement
  `defaultClass` - Class that should be used to create a new service if no service was found.
Returns:
  Service object

#### getScopeService

    public static Object getScopeService(IScope scope,
                         Class<?> intf,
                         Class<?> defaultClass,
                         boolean checkHandler)