org.mule.runtime.module.extension.internal.runtime.result

Class AbstractReturnDelegate

java.lang.Object

org.mule.runtime.module.extension.internal.runtime.result.AbstractReturnDelegate

All Implemented Interfaces:

ReturnDelegate

Direct Known Subclasses:

PayloadTargetReturnDelegate, TargetReturnDelegate, ValueReturnDelegate

public abstract class AbstractReturnDelegate
extends Object
implements ReturnDelegate

Base class for ReturnDelegate implementations.

Contains the logic for taking an operation's output value and turn it into a Message which not only contains the updated payload but also the proper DataType and attributes.

It also consider the case in which the value is a List<Result> which should be turned into a List<Message>. For any of this cases, it also allows specifying a CursorProviderFactory which will transform the streaming payload values into CursorProvider instances. As said before, this is also applied then the value is a message or list of them

Since:

4.0

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	AbstractReturnDelegate.ConnectedInputStreamWrapper

Field Summary

Fields

Modifier and Type	Field and Description
protected MuleContext	muleContext

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractReturnDelegate(org.mule.runtime.api.meta.model.ComponentModel componentModel, CursorProviderFactory cursorProviderFactory, MuleContext muleContext) Creates a new instance

Method Summary

Modifier and Type	Method and Description
protected org.mule.runtime.api.metadata.MediaType	resolveMediaType(Object value, org.mule.runtime.api.metadata.MediaType contextMimeType, Charset contextEncoding) If provided, mimeType and encoding configured as operation parameters will take precedence over what comes with the message's DataType.
protected org.mule.runtime.api.message.Message	toMessage(Object value, ExecutionContextAdapter operationContext)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mule.runtime.module.extension.internal.runtime.result.ReturnDelegate

asReturnValue

Field Detail

muleContext

protected final MuleContext muleContext

Constructor Detail

AbstractReturnDelegate

protected AbstractReturnDelegate(org.mule.runtime.api.meta.model.ComponentModel componentModel,
                                 CursorProviderFactory cursorProviderFactory,
                                 MuleContext muleContext)

Creates a new instance

Parameters:

componentModel - the component which produces the return value

cursorProviderFactory - the CursorProviderFactory to use when a message is doing cursor based streaming. Can be null

muleContext - the MuleContext of the owning application

Method Detail

toMessage

protected org.mule.runtime.api.message.Message toMessage(Object value,
                                                         ExecutionContextAdapter operationContext)

resolveMediaType

protected org.mule.runtime.api.metadata.MediaType resolveMediaType(Object value,
                                                                   org.mule.runtime.api.metadata.MediaType contextMimeType,
                                                                   Charset contextEncoding)

If provided, mimeType and encoding configured as operation parameters will take precedence over what comes with the message's DataType.

Parameters:

value - the operation's value

contextMimeType - the mimeType specified in the operation

contextEncoding - the encoding specified in the operation

Returns:

the resolved MediaType