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JsonToNeo4j.py
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JsonToNeo4j.py
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import sys
import json
import py2neo # library used to comunicate with database
from py2neo import Graph
import spacy
# write cypher query
query = '''
WITH $json as document
UNWIND document.bundles AS p
MERGE(rce: project {name:toLower(document.name),
className: toLower(document.eClass), timeStamp: document.modelTimestamp})
MERGE (b: bundles {name:toLower(p.name), className:toLower(p.eClass)}) SET b.symbolicName=toLower(p.symbolicName)
MERGE(rce)-[:has_bundles]->(b)
// bundle > imports
FOREACH (imp IN p.imports |
MERGE(im: PackagesImports {name:toLower(imp.ref)}) SET im.FullName=toLower(imp.ref)
MERGE(b)-[:imports]->(im))
// bundle > exports
FOREACH (exp IN p.exports |
MERGE(ex: PackagesExports {name:toLower(exp.ref)} ) SET ex.FullName=toLower(exp.ref)
MERGE(b)-[:exports]->(ex))
// bundle > packages
FOREACH (pkg IN p.packages |
MERGE(pk: packages {name:toLower(pkg.ref)} ) SET pk.FullName=toLower(pkg.ref)
MERGE(b)-[:uses_pkgs]->(pk))
// Iterate through bundle > components
FOREACH (comp IN p.components |
MERGE (b)-[:uses_components]-> (c: Components {name:toLower(comp.name)} )
SET c.className=toLower(comp.eClass),
c.implementation = toLower(comp.implementation.ref),
c.bundle = toLower(comp.bundle.ref)
// Iterate through bundle > components > provided services
FOREACH (service in comp.providedServices|
MERGE(c)-[:uses_services]->(sr: ComponentServices
{name: toLower(service.ref) }) )
)
// Iterate through bundle > packageFragment
FOREACH (pkgfrag IN p.packageFragments |
MERGE(b)-[:Pkg_fragment]->(fragment: PackageFragments {name:toLower(pkgfrag.eClass)})
SET fragment.className = toLower(pkgfrag.eClass)
MERGE(fragment)-[:Pack_By_Frag]->(pack: FragPackages {name:toLower(pkgfrag.package.ref)})
MERGE(fragment)-[:Bundle_By_Frag]->
(bund: FragBundle {name:toLower(pkgfrag.bundle.ref) })
// Iterate through bundle > packageFragment > compilation units
FOREACH (cmp IN pkgfrag.compilationUnits |
MERGE(fragment)-[:compiled_By]->(u: compilationUnit{name:toLower(cmp.name)})
SET u.className = toLower(cmp.eClass),
u.Loc = cmp.LOC
// Iterate through bundle > packageFragment > compilation units > packageFragment
MERGE(u)-[:compiledUnits_pkgFragment]->
(CPkFrag: compiledUF
{name:toLower(cmp.packageFragment.ref)})
// bundle > packageFragment > compilationUnits -> topLevelType
MERGE(u)-[:compiledUnits_topLevelType]->
(CPtpLevelType: compiledTopLevelType {name:toLower(cmp.topLevelType.name)})
SET CPtpLevelType.className = toLower(cmp.topLevelType.eClass),
CPtpLevelType.visibility = toLower(cmp.topLevelType.visibility),
CPtpLevelType.qualifiedName = toLower(cmp.topLevelType.qualifiedName)
// bundle > packageFragment > compilationUnits -> topLevelType > compilationUnits
MERGE(CPtpLevelType) -[:topLevelType_compilationUnit]->
(topLevel_cUnit: Units {name: toLower(cmp.topLevelType.compilationUnit.ref) } )
SET topLevel_cUnit.ref = toLower(cmp.topLevelType.compilationUnit.ref)
// Inside topLevelType > references
FOREACH (refer IN cmp.topLevelType.references |
MERGE(CPtpLevelType)-[:topLevelType_reference]->
(referTL: References {name:tolower(refer.ref) })
SET referTL.ref = tolower(refer.ref)
)
// Inside bundle > packageFragment > compilationUnits -> topLevelType > External references
FOREACH (erefer IN cmp.topLevelType.externalReferences |
MERGE(CPtpLevelType)-[:topLevelType_EReference]->
(ereferTL: eReferences {name:tolower(erefer.ref)})
SET ereferTL.ref = tolower(erefer.ref)
)
// Inside bundle > packageFragment > compilationUnits -> topLevelType > Constructors
FOREACH (const IN cmp.topLevelType.constructors |
MERGE(CPtpLevelType)-[:topLevelType_Const]->
(constTL: Constructor {name:tolower(const.eClass)})
SET constTL.eClass = tolower(const.eClass),
constTL.visibility = tolower(const.visibility),
constTL.LOC = const.LOC
)
// Inside bundle > packageFragment > compilationUnits -> topLevelType > methods
FOREACH (methd IN cmp.topLevelType.methods |
MERGE(CPtpLevelType)-[:Methods_Contains]->
(methodTL: Methods {name:tolower(methd.name)})
SET methodTL.eClass = tolower(methd.eClass),
methodTL.name = tolower(methd.name),
methodTL.visibility = tolower(methd.visibility),
methodTL.LOC = methd.LOC
)
// Inside bundle > packageFragment > compilationUnits -> topLevelType > fields
FOREACH (field IN cmp.topLevelType.fields |
MERGE(CPtpLevelType)-[:Fields_Contains]->
(fieldTL: Methods {name:tolower(field.name)})
SET fieldTL.eClass = tolower(field.eClass),
fieldTL.name = tolower(field.name),
fieldTL.visibility = tolower(field.visibility),
fieldTL.modify_0 = tolower(field.modifier[0]),
fieldTL.modify_1 = tolower(field.modifier[1])
)
)
)
MERGE (v: Version {name:("Version " + p.version.major)}) SET
v.className = tolower(p.version.eClass),
v.major=p.version.major,
v.minor=p.version.minor,
v.micro=p.version.micro,
v.qualifier=tolower(p.version.qualifier)
MERGE(b)-[:VersionNum]->(v)
// Iterate through packages on ground level (fields inside packages are not completed)
WITH $json as document
UNWIND document.packages AS s
MERGE (pkg: ext_packages {name:tolower(s.name), className:s.eClass})
SET pkg.qualifiedName = tolower(s.qualifiedName)
MERGE(rce)-[:has_packages]->(pkg)
// packages > fragments
FOREACH (frag IN s.fragments |
MERGE(fr: fragments {name:toLower(frag.ref)})
MERGE(pkg)-[:has_fragments]->(fr))
// packages > subPackages
FOREACH (subpkg IN s.subPackages |
MERGE(spkg: subPackages {name:toLower(subpkg.ref)})
MERGE(pkg)-[:has_subpackage]->(spkg))
// packages > parentPackage
FOREACH (ppkg IN s.parentPackage |
MERGE(pp: parentPackage {name:toLower(ppkg.ref)})
MERGE(pkg)-[:has_parentPackage]->(pp))
// Iterate through services
WITH $json as document
UNWIND document.services AS s
MERGE (ser: services {name:tolower(s.interfaceName), className:s.eClass})
SET ser.interface = tolower(s.interface.ref)
MERGE(rce)-[:has_services]->(ser)
// Iterate through externalTypes
//WITH $json as document
//UNWIND document.externalTypes AS e
//MERGE (eTyp: eTypes {name:tolower(e.qualifiedName), className:tolower(e.eClass)})
//MERGE(rce)-[:has_externalTypes]->(eTyp)
'''
'''
In order to convert json source file to graph database,
we use neo4j database which uses cypher query language.
To visualize the graph, login to http://localhost:7474
'''
if __name__ == "__main__":
username = "neo4j"
userpass = "neo4j"
if len(sys.argv)==3:
username = sys.argv[1]
userpass = sys.argv[2]
# load json file
with open('./data/rte.json') as data_file:
json_ = json.load(data_file)
graph = Graph("http://localhost:7474", auth=(username, userpass))
graph.run(query, json=json_).data()