org.swisspush.gateleen.expansion

Class RecursiveExpansionHandler

java.lang.Object

org.swisspush.gateleen.expansion.RecursiveExpansionHandler

All Implemented Interfaces:

io.vertx.core.Handler<ResourceNode>, DeltaHandler<ResourceNode>

public class RecursiveExpansionHandler
extends Object
implements DeltaHandler<ResourceNode>

A class for handeling the recursive get request. She holds exactly one collection and handles all of their children, before she calls here parent.

Author:

https://github.com/ljucam [Mario Ljuca]

Constructor Summary

Constructors

Constructor and Description
RecursiveExpansionHandler(List<String> subResourceNames, String collectionName, String collectioneTag, DeltaHandler<ResourceNode> parentHandler) Creates a new instance of the RecursiveExpansionHandler.

Method Summary

Modifier and Type	Method and Description
void	handle(ResourceNode node) Handles the given node.
void	storeXDeltaResponseHeader(String xDeltaResponseNumber) Checks if the given x-delta number from the response is not null and is higher then the already stored one.

Methods inherited from class java.lang.Object

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

Constructor Detail

RecursiveExpansionHandler

public RecursiveExpansionHandler(List<String> subResourceNames,
                                 String collectionName,
                                 String collectioneTag,
                                 DeltaHandler<ResourceNode> parentHandler)

Creates a new instance of the RecursiveExpansionHandler.

Parameters:

subResourceNames - - a list with the child names, needed for preserving the order of the resources

collectionName - - the name of the collection

collectioneTag - - eTag of the request that lead to this collection

parentHandler - - the parent handler

Method Detail

handle

public void handle(ResourceNode node)

Handles the given node. A node has to field, his name and an object. Normaly this object is either a JsonObject or an JSonArray. If an error occures, this object can carry an exception (serious error) or null (no serious error).

Specified by:

handle in interface io.vertx.core.Handler<ResourceNode>

Parameters:

node - node

storeXDeltaResponseHeader

public void storeXDeltaResponseHeader(String xDeltaResponseNumber)

Description copied from interface: DeltaHandler

Checks if the given x-delta number from the response is not null and is higher then the already stored one. If so the number is set otherwise not.

Specified by:

storeXDeltaResponseHeader in interface DeltaHandler<ResourceNode>

Parameters:

xDeltaResponseNumber - null or the current x-delta value from the response.