Package org.jgrapes.webconsole.base.events

Class AddConletRequest

java.lang.Object

org.jgrapes.core.internal.EventBase<String>

org.jgrapes.core.Event<String>

org.jgrapes.webconsole.base.events.RenderConletRequestBase<String>

org.jgrapes.webconsole.base.events.AddConletRequest

All Implemented Interfaces:

Future<String>, Associator, Eligible

public class AddConletRequest
extends RenderConletRequestBase<String>

Sent to the console (server) if a new web console component instance of a given type should be added to the web console page.

The console server usually responds with a RenderConlet event that has as payload the HTML that displays the web console component on the console page.

Properties may be passed with the event. The interpretation of the properties is completely dependent on the web console component that handles the request. It is recommended to use Strings as keys and JDK types as values. This avoids classpath dependencies on the web console component that is to be added.

AddConletRequest can also be generated on the server side to automatically add a conlet in response to some event. Usually, the origin of the event is not important when handling the event. Nevertheless, the origin can be determined by calling isFrontendRequest() as it may be important e.g. for security related checks.

The event’s result is the web console component id of the new web console component instance.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.concurrent.Future

Future.State

Field Summary

Fields inherited from class org.jgrapes.core.internal.EventBase

completed, completionEvents, invokedFor

Constructor Summary

Constructors

Constructor	Description
AddConletRequest(RenderSupport renderSupport, String conletType, Set<Conlet.RenderMode> renderModes)	Creates a new event.
AddConletRequest(RenderSupport renderSupport, String conletType, Set<Conlet.RenderMode> renderModes, Map<?,?> properties)	Creates a new event.

Method Summary

Modifier and Type	Method	Description
AddConletRequest	addProperty(Object key, Object value)	Convenience method for adding properties one-by-one.
String	conletType()	Returns the web console component type
AddConletRequest	ifPresent(Object key, BiConsumer<Object,Object> action)	Convenience method that performs the given action if a property with the given key exists.
boolean	isFrontendRequest()	Checks if this request originated from the browser.
Map<Object,Object>	properties()	Returns the properties.
AddConletRequest	setFrontendRequest()	Marks this event as originating from the browser.

Methods inherited from class org.jgrapes.webconsole.base.events.RenderConletRequestBase

renderAs, renderSupport

Methods inherited from class org.jgrapes.core.Event

addCompletionEvent, associated, cancel, channels, channels, completionEvents, currentResults, defaultCriterion, forChannels, get, get, handled, handlingError, isCancelled, isDone, isEligibleFor, isStopped, processedBy, results, results, resumeHandling, setAssociated, setChannels, setRequiresResult, setResult, stop, suspendHandling, suspendHandling, tieTo, toString

Methods inherited from class org.jgrapes.core.internal.EventBase

disableTracking, enqueued, firstResultAssigned, isTracked, onCompletion

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jgrapes.core.Associator

associated, associated, associated, associatedGet

Methods inherited from interface java.util.concurrent.Future

exceptionNow, resultNow, state

Constructor Details

AddConletRequest

public AddConletRequest(RenderSupport renderSupport,
 String conletType,
 Set<Conlet.RenderMode> renderModes)

Creates a new event.

Parameters:

renderSupport - the render support

conletType - the type of the web console component

renderModes - the render modes

AddConletRequest

public AddConletRequest(RenderSupport renderSupport,
 String conletType,
 Set<Conlet.RenderMode> renderModes,
 Map<?,?> properties)

Creates a new event.

Parameters:

renderSupport - the render support

conletType - the type of the web console component

renderModes - the render modes

properties - optional values for properties of the web console component instance

Method Details

setFrontendRequest

public AddConletRequest setFrontendRequest()

Marks this event as originating from the browser.

Returns:

the adds the conlet request

isFrontendRequest

public boolean isFrontendRequest()

Checks if this request originated from the browser.

Returns:

true, if is frontend request

conletType

public String conletType()

Returns the web console component type

Returns:

the web console component type

properties

public Map<Object,Object> properties()

Returns the properties.

Every event returns a mutable map, thus allowing event handlers to modify the map even if none was passed to the constructor.

addProperty

public AddConletRequest addProperty(Object key,
 Object value)

Convenience method for adding properties one-by-one.

Parameters:

key - the property key

value - the property value

Returns:

the event for easy chaining

ifPresent

public AddConletRequest ifPresent(Object key,
 BiConsumer<Object,Object> action)

Convenience method that performs the given action if a property with the given key exists.

Parameters:

key - the property key

action - the action to perform