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/*******************************************************************************
* Copyright (c) 2017 Politecnico di Torino and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution, and is available at
* http://www.apache.org/licenses/LICENSE-2.0
*******************************************************************************/
package it.polito.verigraph.service;
import java.io.IOException;
import java.util.List;
import javax.xml.bind.JAXBException;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonMappingException;
import it.polito.neo4j.manager.Neo4jDBManager;
import it.polito.neo4j.exceptions.MyInvalidIdException;
import it.polito.neo4j.exceptions.MyNotFoundException;
import it.polito.verigraph.exception.ForbiddenException;
import it.polito.verigraph.model.Graph;
import it.polito.verigraph.model.Node;
public class GraphService {
private Neo4jDBManager manager= new Neo4jDBManager();
public static VerigraphLogger vlogger = VerigraphLogger.getVerigraphlogger();
public GraphService() {}
public List<Graph> getAllGraphs() throws JsonProcessingException, MyNotFoundException {
List<Graph> result;
result=manager.getGraphs();
for(Graph g : result){
validateGraph(g);
}
return result;
}
public Graph getGraph(long id) throws JsonParseException, JsonMappingException, JAXBException, IOException {
if (id < 0) {
throw new ForbiddenException("Illegal graph id: " + id);
}
Graph localGraph=manager.getGraph(id);
validateGraph(localGraph);
return localGraph;
}
public Graph updateGraph(Graph graph) throws JAXBException, JsonParseException, JsonMappingException, IOException, MyInvalidIdException {
if (graph.getId() < 0) {
throw new ForbiddenException("Illegal graph id: " + graph.getId());
}
validateGraph(graph);
Graph localGraph=new Graph();
localGraph=manager.updateGraph(graph);
vlogger.logger.info("Graph updated");
validateGraph(localGraph);
return localGraph;
}
public void removeGraph(long id) {
if (id < 0) {
throw new ForbiddenException("Illegal graph id: " + id);
}
manager.deleteGraph(id);
}
public Graph addGraph(Graph graph) throws JAXBException, JsonParseException, JsonMappingException, IOException, MyInvalidIdException {
validateGraph(graph);
Graph g=manager.addGraph(graph);
validateGraph(g);
return g;
}
public static void validateGraph(Graph graph) throws JsonProcessingException {
for (Node node : graph.getNodes().values()) {
NodeService.validateNode(graph, node);
}
}
}
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