resource-registry/src/test/resources/json.query.example

{

	"type": "EService",
	"consistsOf": [
		{
			"type": "ConsistsOf",
			"propagationConstraint" : {
				"add": "propagate"
			},
			"target": {
				"type": "StateFacet",
				"value": "down"
			}
		},
		{
			"type": "IsIdentifiedBy",
			"target": {
				"type": "SoftwareFacet",
				"name": "data-transfer-service",
				"group": "DataTransfer"
			}
		},
		{
			"type": "ConsistsOf",
			"target": {
				"type": "AccessPointFacet",
				"endpoint": "http://pc-frosini.isti.cnr.it:8080/data-transfer-service/gcube/service"
			}
		}
	],
	"isRelatedTo" : [
		{
			"type": "activates",
			"source": {
				"type": "HostingNode"
			}
		}
	]
}

SELECT FROM (
	TRAVERSE outV("HostingNode") FROM (
		TRAVERSE inE("Activates") FROM (
			TRAVERSE outV("EService") FROM (
				TRAVERSE inE("ConsistsOf") FROM (
					SELECT FROM (
						TRAVERSE inV("AccessPointFacet") FROM (
							SELECT FROM (
								TRAVERSE outE("ConsistsOf") FROM (
									TRAVERSE outV("EService") FROM (
										TRAVERSE inE("IsIdentifiedBy") FROM (
											SELECT FROM (
												TRAVERSE inV("SoftwareFacet") FROM (
													SELECT FROM (
														TRAVERSE outE("IsIdentifiedBy") FROM (
															TRAVERSE outV("EService") FROM (
																SELECT FROM (
																	TRAVERSE inE("ConsistsOf") FROM (
																		SELECT FROM StateFacet WHERE value="down"
																	)
																) WHERE propagationConstraint.add="propagate"
															)
														)
													)
												)
											) WHERE name="data-transfer-service" AND group="DataTransfer"
										)
									)
								)
							)
						)
					)  WHERE endpoint="http://pc-frosini.isti.cnr.it:8080/data-transfer-service/gcube/service"
				)
			)
		)
	)
)

// WHERE type="EService"



Ottimizzata rimuovendo i SELECT FROM dove non ci sono filtri da applicare sulla istanza:


SELECT FROM (
	TRAVERSE outV("EService") FROM (
		TRAVERSE inE("ConsistsOf") FROM (
			SELECT FROM (
				TRAVERSE inV("AccessPointFacet") FROM (
					TRAVERSE outE("ConsistsOf") FROM (
						TRAVERSE outV("EService") FROM (
							TRAVERSE inE("IsIdentifiedBy") FROM (
								SELECT FROM (
									TRAVERSE inV("SoftwareFacet") FROM (
										TRAVERSE outE("IsIdentifiedBy") FROM (
											TRAVERSE outV("EService") FROM (
												SELECT FROM (
													TRAVERSE inE("ConsistsOf") FROM (
														SELECT FROM StateFacet WHERE value="down"
													)
												) WHERE propagationConstraint.add="propagate"
											)
										)
									)
								) WHERE name="data-transfer-service" AND group="DataTransfer"
							)
						)
					)
				)
			)  WHERE endpoint="http://pc-frosini.isti.cnr.it:8080/data-transfer-service/gcube/service"
		)
	)
) WHERE type="EService"



SELECT FROM (
	TRAVERSE inE("ConsistsOf").outV("EService") FROM (
		SELECT FROM (
			TRAVERSE inE("IsIdentifiedBy").outV("EService").outE("ConsistsOf").inV("AccessPointFacet") FROM (
				SELECT FROM (
					TRAVERSE outV("EService").outE("IsIdentifiedBy").inV("SoftwareFacet") FROM (
						SELECT FROM (
							TRAVERSE inE("ConsistsOf") FROM (
								SELECT FROM StateFacet WHERE value="down"
							)
						) WHERE propagationConstraint.add="propagate"
					)
				) WHERE name="data-transfer-service" AND group="DataTransfer"
			)
		)  WHERE endpoint="http://pc-frosini.isti.cnr.it:8080/data-transfer-service/gcube/service"
	)
) WHERE type="EService"


// Generated from code:

SELECT FROM (
	TRAVERSE outV("EService") FROM (
		TRAVERSE inE("ConsistsOf") FROM (
			SELECT FROM  (
				TRAVERSE inV("AccessPointFacet") FROM ( 
					TRAVERSE outV("EService").outE("ConsistsOf") FROM (
						TRAVERSE inE("IsIdentifiedBy") FROM (
							SELECT FROM  (
								TRAVERSE inV("SoftwareFacet") FROM ( 
									TRAVERSE outV("EService").outE("IsIdentifiedBy") FROM (
										SELECT FROM ( 
											TRAVERSE inE("ConsistsOf") FROM (
												SELECT FROM StateFacet WHERE value="down"
											)
										) WHERE propagationConstraint.add="propagate"
									)
								)
							) WHERE name="data-transfer-service" AND group="DataTransfer"
						)
					)
				)
			) WHERE endpoint="http://pc-frosini.isti.cnr.it:8080/data-transfer-service/gcube/service"
		)
	)
)

// This is validated by the code to get polymorphic result
// WHERE type="EService" 


MATCH 
	{class: StateFacet, where: (value="down")} .(in("ConsistsOf"){ where: (propagationConstraint!=null) }) {class: EService}
	-IsIdentifiedBy-> {class: SoftwareFacet, where: (name="data-transfer-service" AND group="DataTransfer")}
	<-ConsistsOf- {class: EService, as: result}
	-ConsistsOf->{class: AccessPointFacet, where: (endpoint="http://pc-frosini.isti.cnr.it:8080/data-transfer-service/gcube/service")}
RETURN result




Non funziona con propagationConstraint.add="propagate"

MATCH 
	{class: StateFacet, where: (value="down")} .(in("ConsistsOf"){ where: (propagationConstraint.add="propagate") }) {class: EService}
	-IsIdentifiedBy-> {class: SoftwareFacet, where: (name="data-transfer-service" AND group="DataTransfer")}
	<-ConsistsOf- {class: EService, as: result}
	-ConsistsOf->{class: AccessPointFacet, where: (endpoint="http://pc-frosini.isti.cnr.it:8080/data-transfer-service/gcube/service")}
RETURN result