php.java.bridge.http
Class Context

java.lang.Object
  php.java.bridge.http.Context

All Implemented Interfaces:

Invocable

Direct Known Subclasses:

Context

public class Context
extends java.lang.Object
implements Invocable

Emulates a JSR223 script context when the JSR223 classes are not available. The method call(kont) returns false, so that it can be used to check if a script was called from java:
function toString() {return "hello java, I am a php script, but in your eyes I am an ordinary java object...";}
java_context()->call(java_closure()) || die("This script must be called from java!");

Author:

jostb

See Also:

IPhpScriptContext, ScriptContext, PhpSimpleHttpScriptContext, PhpScriptContext

Field Summary

static int	ENGINE_SCOPE The engine scope
static int	GLOBAL_SCOPE The global scope

Method Summary

boolean	call(PhpProcedureProxy kont) Call the java continuation with the current continuation kont as its argument.
java.lang.Object	getAttribute(java.lang.String name) Retrieves the value for getAttribute(String, int) for the lowest scope in which it returns a non-null value.
java.lang.Object	getAttribute(java.lang.String name, int scope) Retrieves the value associated with specified name in the specified level of scope.
int	getAttributesScope(java.lang.String name) Retrieves the lowest value of scopes for which the attribute is defined.
java.util.Map	getMap(int scope) Retrieves the Map instance associated with the specified level of scope.
java.io.Writer	getWriter() Retrieves an instance of java.io.Writer which can be used by scripts to display their output.
java.lang.Object	removeAttribute(java.lang.String name, int scope) Removes the specified attribute form the specified level of scope.
void	setAttribute(java.lang.String name, java.lang.Object value, int scope) Sets an attribute specified by the name in specified level of scope.
void	setMap(java.util.Map map, int scope) Associates the specified Map with specified level of scope.

Methods inherited from class java.lang.Object

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

Field Detail

ENGINE_SCOPE

public static final int ENGINE_SCOPE

The engine scope

See Also:

Constant Field Values

GLOBAL_SCOPE

public static final int GLOBAL_SCOPE

The global scope

See Also:

Constant Field Values

Method Detail

getAttribute

public java.lang.Object getAttribute(java.lang.String name)
                              throws java.lang.IllegalArgumentException

Retrieves the value for getAttribute(String, int) for the lowest scope in which it returns a non-null value.

Parameters:

name - the name of the attribute

Returns:

the value of the attribute

Throws:

java.lang.IllegalArgumentException

getAttribute

public java.lang.Object getAttribute(java.lang.String name,
                                     int scope)
                              throws java.lang.IllegalArgumentException

Retrieves the value associated with specified name in the specified level of scope. Returns null if no value is associated with specified key in specified level of scope.

Parameters:

name - the name of the attribute

scope - the level of scope

Returns:

the value value associated with the specified name in specified level of scope

Throws:

java.lang.IllegalArgumentException

getAttributesScope

public int getAttributesScope(java.lang.String name)

Retrieves the lowest value of scopes for which the attribute is defined. If there is no associate scope with the given attribute (-1) is returned.

Parameters:

name - the name of attribute

Returns:

the value of level of scope

getMap

public java.util.Map getMap(int scope)

Retrieves the Map instance associated with the specified level of scope.

Parameters:

scope - the level of the scope

Returns:

the Map associated with the specified level of scope

getWriter

public java.io.Writer getWriter()
                         throws java.io.IOException

Retrieves an instance of java.io.Writer which can be used by scripts to display their output.

Returns:

an instance of java.io.Writer

Throws:

java.io.IOException

removeAttribute

public java.lang.Object removeAttribute(java.lang.String name,
                                        int scope)
                                 throws java.lang.IllegalArgumentException

Removes the specified attribute form the specified level of scope.

Parameters:

name - the name of the attribute

scope - the level of scope

Returns:

value which is removed

Throws:

java.lang.IllegalArgumentException

setAttribute

public void setAttribute(java.lang.String name,
                         java.lang.Object value,
                         int scope)
                  throws java.lang.IllegalArgumentException

Sets an attribute specified by the name in specified level of scope.

Parameters:

name - the name of the attribute

value - the value of the attribute

scope - the level of the scope

Throws:

IllegalArguementException - if the name is null scope is invlaid

java.lang.IllegalArgumentException

setMap

public void setMap(java.util.Map map,
                   int scope)
            throws java.lang.IllegalArgumentException

Associates the specified Map with specified level of scope.

Parameters:

map - the Map to be associated with specified level of scope

scope - the level of scope

Throws:

java.lang.IllegalArgumentException

call

public boolean call(PhpProcedureProxy kont)

Description copied from interface: Invocable

Call the java continuation with the current continuation kont as its argument.

Specified by:

call in interface Invocable

Parameters:

kont - The continuation.

Returns:

True on success, false otherwise.