use of uk.gov.gchq.gaffer.federatedstore.operation.RemoveGraph in project gaffer-doc by gchq.
the class FederatedStoreWalkThrough method run.
public CloseableIterable<? extends Element> run() throws Exception {
final Schema schema = new Schema.Builder().json(StreamUtil.openStreams(getClass(), schemaPath)).build();
final HashMapGraphLibrary library = new HashMapGraphLibrary();
library.addProperties("mapStore", getMapStoreProperties());
library.addProperties("accumuloStore", getAccumuloStoreProperties());
library.addSchema("roadTraffic", schema);
// [creating a federatedstore] create a store that federates to a MapStore and AccumuloStore
// ---------------------------------------------------------
final Graph federatedGraph = new Graph.Builder().config(new GraphConfig.Builder().graphId(getClass().getSimpleName()).library(library).build()).storeProperties(getFederatedStoreProperties()).build();
// ---------------------------------------------------------
// [federatedstore properties]
// ---------------------------------------------------------
final FederatedStoreProperties exampleFederatedProperty = new FederatedStoreProperties();
exampleFederatedProperty.setCacheProperties(HashMapCacheService.class.getName());
// ---------------------------------------------------------
printJson("FED_PROP", getFederatedStoreProperties());
final User user = new User("user01");
final AddGraph addMapGraph = new AddGraph.Builder().graphId("mapGraph").schema(new Schema.Builder().json(StreamUtil.openStream(getClass(), "RoadAndRoadUseWithTimesAndCardinalitiesForFederatedStore/schema/entities.json")).json(StreamUtil.openStream(getClass(), "RoadAndRoadUseWithTimesAndCardinalitiesForFederatedStore/schema/types.json")).build()).storeProperties(getMapStoreProperties()).isPublic(true).build();
federatedGraph.execute(addMapGraph, user);
final AddGraph addAccumuloGraph = new AddGraph.Builder().graphId("accumuloGraph").schema(new Schema.Builder().json(StreamUtil.openStream(getClass(), "RoadAndRoadUseWithTimesAndCardinalitiesForFederatedStore/schema/edges.json")).json(StreamUtil.openStream(getClass(), "RoadAndRoadUseWithTimesAndCardinalitiesForFederatedStore/schema/types.json")).build()).storeProperties(getAccumuloStoreProperties()).isPublic(true).build();
federatedGraph.execute(addAccumuloGraph, user);
// [add another graph] add a graph to the federated store.
// ---------------------------------------------------------
AddGraph addAnotherGraph = new AddGraph.Builder().graphId("AnotherGraph").schema(schema).storeProperties(getMapStoreProperties()).build();
federatedGraph.execute(addAnotherGraph, user);
// ---------------------------------------------------------
improveReadabilityOfJson(addAnotherGraph);
addAccumuloGraph.setGraphAuths(null);
printJson("ADD_GRAPH", addAnotherGraph);
// [remove graph] remove a graph from the federated store.
// ---------------------------------------------------------
RemoveGraph removeGraph = new RemoveGraph.Builder().graphId("AnotherGraph").build();
federatedGraph.execute(removeGraph, user);
// ---------------------------------------------------------
improveReadabilityOfJson(removeGraph);
printJson("REMOVE_GRAPH", removeGraph);
// [get all graph ids] Get a list of all the graphId within the FederatedStore.
// ---------------------------------------------------------
final GetAllGraphIds getAllGraphIDs = new GetAllGraphIds();
Iterable<? extends String> graphIds = federatedGraph.execute(getAllGraphIDs, user);
// ---------------------------------------------------------
improveReadabilityOfJson(getAllGraphIDs);
printJson("GET_ALL_GRAPH_IDS", getAllGraphIDs);
print("GRAPH_IDS", graphIds.toString());
// [add elements] Create a data generator and add the edges to the federated graphs using an operation chain consisting of:
// generateElements - generating edges from the data (note these are directed edges)
// addElements - add the edges to the graph
// ---------------------------------------------------------
final OperationChain<Void> addOpChain = new OperationChain.Builder().first(new GenerateElements.Builder<String>().generator(new RoadAndRoadUseWithTimesAndCardinalitiesElementGenerator()).input(IOUtils.readLines(StreamUtil.openStream(getClass(), "RoadAndRoadUseWithTimesAndCardinalities/data.txt"))).build()).then(new AddElements()).build();
federatedGraph.execute(addOpChain, user);
// ---------------------------------------------------------
printJsonAndPython("ADD_ELEMENTS", addOpChain);
// [get elements]
// ---------------------------------------------------------
final OperationChain<CloseableIterable<? extends Element>> getOpChain = new OperationChain.Builder().first(new GetElements.Builder().input(new EntitySeed("10")).build()).build();
CloseableIterable<? extends Element> elements = federatedGraph.execute(getOpChain, user);
for (final Element element : elements) {
print("ELEMENTS", element.toString());
}
printJsonAndPython("GET_ELEMENTS", getOpChain);
// [get elements from accumulo graph]
// ---------------------------------------------------------
final OperationChain<CloseableIterable<? extends Element>> getOpChainOnAccumuloGraph = new OperationChain.Builder().first(new GetElements.Builder().input(new EntitySeed("10")).option(FederatedStoreConstants.KEY_OPERATION_OPTIONS_GRAPH_IDS, "accumuloGraph").build()).build();
CloseableIterable<? extends Element> elementsFromAccumuloGraph = federatedGraph.execute(getOpChainOnAccumuloGraph, user);
for (final Element element : elementsFromAccumuloGraph) {
print("ELEMENTS_FROM_ACCUMULO_GRAPH", element.toString());
}
// [select graphs for operations]
// ---------------------------------------------------------
GetAllElements selectGraphsForOperations = new Builder().option(FederatedStoreConstants.KEY_OPERATION_OPTIONS_GRAPH_IDS, "graphId1, graphId2").build();
// ---------------------------------------------------------
printJsonAndPython("SELECT_GRAPHS_FOR_OPERATIONS", selectGraphsForOperations);
// [do not skip failed execution]
// ---------------------------------------------------------
GetAllElements doNotSkipFailedExecution = new Builder().option(FederatedStoreConstants.KEY_SKIP_FAILED_FEDERATED_STORE_EXECUTE, "false").build();
// ---------------------------------------------------------
printJsonAndPython("DO_NOT_SKIP_FAILED_EXECUTION", doNotSkipFailedExecution);
// [add public graph] add a graph to the federated store.
// ---------------------------------------------------------
AddGraph publicGraph = new AddGraph.Builder().graphId("publicGraph").parentSchemaIds(Lists.newArrayList("roadTraffic")).parentPropertiesId("mapStore").isPublic(// <-- public access
true).graphAuths(// <-- used but irrelevant as graph has public access
"Auth1").build();
federatedGraph.execute(addAnotherGraph, user);
// ---------------------------------------------------------
improveReadabilityOfJson(publicGraph);
printJson("ADD_PUBLIC_GRAPH", publicGraph);
// [add private graph] add a graph to the federated store.
// ---------------------------------------------------------
AddGraph privateGraph = new AddGraph.Builder().graphId("privateGraph").parentSchemaIds(Lists.newArrayList("roadTraffic")).parentPropertiesId("mapStore").build();
federatedGraph.execute(addAnotherGraph, user);
// ---------------------------------------------------------
improveReadabilityOfJson(privateGraph);
printJson("ADD_PRIVATE_GRAPH", privateGraph);
// [add secure graph] add a graph to the federated store.
// ---------------------------------------------------------
AddGraph addSecureGraph = new AddGraph.Builder().graphId("SecureGraph").parentSchemaIds(Lists.newArrayList("roadTraffic")).parentPropertiesId("mapStore").graphAuths("Auth1", "Auth2", "Auth3").build();
federatedGraph.execute(addSecureGraph, user);
// ---------------------------------------------------------
improveReadabilityOfJson(addSecureGraph);
printJson("ADD_SECURE_GRAPH", addSecureGraph);
// [disallow public access]
// ---------------------------------------------------------
FederatedStoreProperties disallowPublicProperties = new FederatedStoreProperties();
disallowPublicProperties.setGraphsCanHavePublicAccess(false);
// ---------------------------------------------------------
printJson("DISALLOW_PUBLIC_ACCESS", disallowPublicProperties.getProperties());
// [limit custom properties]
// ---------------------------------------------------------
FederatedStoreProperties limitCustomProperties = new FederatedStoreProperties();
limitCustomProperties.setCustomPropertyAuths("Auth1, Auth2, Auth3");
// ---------------------------------------------------------
printJson("LIMIT_CUSTOM_PROPERTIES", limitCustomProperties.getProperties());
return elements;
}
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