diff options
Diffstat (limited to 'verigraph/src/main/java/it/polito/escape/verify/resources/NodeResource.java')
| -rw-r--r-- | verigraph/src/main/java/it/polito/escape/verify/resources/NodeResource.java | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/verigraph/src/main/java/it/polito/escape/verify/resources/NodeResource.java b/verigraph/src/main/java/it/polito/escape/verify/resources/NodeResource.java new file mode 100644 index 0000000..58d4064 --- /dev/null +++ b/verigraph/src/main/java/it/polito/escape/verify/resources/NodeResource.java @@ -0,0 +1,230 @@ +/******************************************************************************* + * 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.escape.verify.resources; + +import java.net.URI; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import javax.ws.rs.Consumes; +import javax.ws.rs.DELETE; +import javax.ws.rs.GET; +import javax.ws.rs.POST; +import javax.ws.rs.PUT; +import javax.ws.rs.Path; +import javax.ws.rs.PathParam; +import javax.ws.rs.Produces; +import javax.ws.rs.core.Context; +import javax.ws.rs.core.MediaType; +import javax.ws.rs.core.Response; +import javax.ws.rs.core.UriInfo; + +import io.swagger.annotations.Api; +import io.swagger.annotations.ApiOperation; +import io.swagger.annotations.ApiParam; +import io.swagger.annotations.ApiResponse; +import io.swagger.annotations.ApiResponses; +import it.polito.escape.verify.exception.BadRequestException; +import it.polito.escape.verify.exception.ForbiddenException; +import it.polito.escape.verify.model.Configuration; +import it.polito.escape.verify.model.ErrorMessage; +import it.polito.escape.verify.model.Graph; +import it.polito.escape.verify.model.Neighbour; +import it.polito.escape.verify.model.Node; +import it.polito.escape.verify.service.GraphService; +import it.polito.escape.verify.service.NodeService; + +@Api( hidden= true, value = "", description = "Manage nodes" ) +@Consumes(MediaType.APPLICATION_JSON) +@Produces(MediaType.APPLICATION_JSON) +public class NodeResource { + + NodeService nodeService = new NodeService(); + + + @GET + @ApiOperation( + httpMethod = "GET", + value = "Returns all nodes of a given graph", + notes = "Returns an array of nodes belonging to a given graph", + response = Node.class, + responseContainer = "List") + @ApiResponses(value = { @ApiResponse(code = 403, message = "Invalid graph id", response = ErrorMessage.class), + @ApiResponse(code = 404, message = "Graph not found", response = ErrorMessage.class), + @ApiResponse(code = 500, message = "Internal server error", response = ErrorMessage.class), + @ApiResponse(code = 200, message = "All the nodes have been returned in the message body", response = Node.class, responseContainer = "List") }) + public List<Node> getNodes(@ApiParam(value = "Graph id", required = true) @PathParam("graphId") long graphId){ + return nodeService.getAllNodes(graphId); + } + + @POST + @ApiOperation( + httpMethod = "POST", + value = "Creates a node in a given graph", + notes = "Creates a single node for a given graph", + response = Response.class) + @ApiResponses(value = { @ApiResponse(code = 400, message = "Invalid node supplied", response = ErrorMessage.class), + @ApiResponse(code = 403, message = "Invalid graph id", response = ErrorMessage.class), + @ApiResponse(code = 404, message = "Graph not found", response = ErrorMessage.class), + @ApiResponse(code = 500, message = "Internal server error", response = ErrorMessage.class), + @ApiResponse(code = 201, message = "Node successfully created", response = Node.class)}) + public Response addNode( + @ApiParam(value = "Graph id", required = true) @PathParam("graphId") long graphId, + @ApiParam(value = "New node object", required = true) Node node, + @Context UriInfo uriInfo) { + Node newNode = nodeService.addNode(graphId, node); + String newId = String.valueOf(newNode.getId()); + URI uri = uriInfo.getAbsolutePathBuilder().path(newId).build(); + return Response.created(uri) + .entity(newNode) + .build(); + } + + @GET + @Path("{nodeId}") + @ApiOperation( + httpMethod = "GET", + value = "Returns a node of a given graph", + notes = "Returns a single node of a given graph", + response = Node.class) + @ApiResponses(value = { @ApiResponse(code = 403, message = "Invalid graph and/or node id", response = ErrorMessage.class), + @ApiResponse(code = 404, message = "Graph and/or node not found", response = ErrorMessage.class), + @ApiResponse(code = 500, message = "Internal server error", response = ErrorMessage.class), + @ApiResponse(code = 200, message = "The requested node has been returned in the message body", response = Node.class)}) + public Node getNode( + @ApiParam(value = "Graph id", required = true) @PathParam("graphId") long graphId, + @ApiParam(value = "Node id", required = true) @PathParam("nodeId") long nodeId, + @Context UriInfo uriInfo){ + Node node = nodeService.getNode(graphId, nodeId); + node.addLink(getUriForSelf(uriInfo, graphId, node), "self"); + node.addLink(getUriForNeighbours(uriInfo, graphId, node), "neighbours"); + return node; + } + + @PUT + @Path("{nodeId}/configuration") + @ApiOperation( + httpMethod = "PUT", + value = "Adds/edits a configuration to a node of a given graph", + notes = "Configures a node. Once all the nodes of a graph have been configured a given policy can be verified for the graph (e.g. 'reachability' between two nodes).") + @ApiResponses(value = { @ApiResponse(code = 403, message = "Invalid graph and/or node id", response = ErrorMessage.class), + @ApiResponse(code = 404, message = "Graph and/or node not found", response = ErrorMessage.class), + @ApiResponse(code = 500, message = "Internal server error", response = ErrorMessage.class), + @ApiResponse(code = 200, message = "Configuration updated for the requested node")}) + public void addNodeConfiguration( + @ApiParam(value = "Graph id", required = true) @PathParam("graphId") long graphId, + @ApiParam(value = "Node id", required = true) @PathParam("nodeId") long nodeId, + @ApiParam(value = "Node configuration", required = true) Configuration nodeConfiguration, + @Context UriInfo uriInfo){ + if (graphId <= 0) { + throw new ForbiddenException("Illegal graph id: " + graphId); + } + if (nodeId <= 0) { + throw new ForbiddenException("Illegal node id: " + nodeId); + } + Graph graph = new GraphService().getGraph(graphId); + if (graph == null){ + throw new BadRequestException("Graph with id " + graphId + " not found"); + } + Node node = nodeService.getNode(graphId, nodeId); + if (node == null){ + throw new BadRequestException("Node with id " + nodeId + " not found in graph with id " + graphId); + } + Node nodeCopy = new Node(); + nodeCopy.setId(node.getId()); + nodeCopy.setName(node.getName()); + nodeCopy.setFunctional_type(node.getFunctional_type()); + Map<Long,Neighbour> nodes = new HashMap<Long,Neighbour>(); + nodes.putAll(node.getNeighbours()); + nodeCopy.setNeighbours(nodes); + nodeConfiguration.setId(nodeCopy.getName()); + nodeCopy.setConfiguration(nodeConfiguration); + + Graph graphCopy = new Graph(); + graphCopy.setId(graph.getId()); + graphCopy.setNodes(new HashMap<Long, Node>(graph.getNodes())); + graphCopy.getNodes().remove(node.getId()); + + NodeService.validateNode(graphCopy, nodeCopy); + graph.getNodes().put(nodeId, nodeCopy); + } + + + @PUT + @Path("{nodeId}") + @ApiOperation( + httpMethod = "PUT", + value = "Edits a node of a given graph", + notes = "Edits a single node of a given graph", + response = Node.class) + @ApiResponses(value = { @ApiResponse(code = 400, message = "Invalid node object", response = ErrorMessage.class), + @ApiResponse(code = 403, message = "Invalid graph and/or node id", response = ErrorMessage.class), + @ApiResponse(code = 404, message = "Graph and/or node not found", response = ErrorMessage.class), + @ApiResponse(code = 500, message = "Internal server error", response = ErrorMessage.class), + @ApiResponse(code = 200, message = "Node edited successfully", response = Node.class)}) + public Node updateNode( + @ApiParam(value = "Graph id", required = true) @PathParam("graphId") long graphId, + @ApiParam(value = "Node id", required = true) @PathParam("nodeId") long nodeId, + @ApiParam(value = "Updated node object", required = true) Node node){ + node.setId(nodeId); + return nodeService.updateNode(graphId, node); + } + + @DELETE + @Path("{nodeId}") + @ApiOperation( + httpMethod = "DELETE", + value = "Deletes a node of a given graph", + notes = "Deletes a single node of a given graph") + @ApiResponses(value = { @ApiResponse(code = 403, message = "Invalid graph and/or node id", response = ErrorMessage.class), + @ApiResponse(code = 500, message = "Internal server error", response = ErrorMessage.class), + @ApiResponse(code = 204, message = "Node successfully deleted")}) + public void deleteNode( + @ApiParam(value = "Graph id", required = true) @PathParam("graphId") long graphId, + @ApiParam(value = "Node id", required = true) @PathParam("nodeId") long nodeId){ + nodeService.removeNode(graphId, nodeId); + } + + private String getUriForSelf(UriInfo uriInfo, long graphId, Node node) { + String uri = uriInfo.getBaseUriBuilder() + //.path(NodeResource.class) + .path(GraphResource.class) + .path(GraphResource.class, "getNodeResource") + .resolveTemplate("graphId", graphId) + .path(Long.toString(node.getId())) + .build() + .toString(); + return uri; + } + + private String getUriForNeighbours(UriInfo uriInfo, long graphId, Node node) { + String uri = uriInfo.getBaseUriBuilder() + .path(GraphResource.class) + .path(GraphResource.class, "getNodeResource") + .resolveTemplate("graphId", graphId) + .path(Long.toString(node.getId())) + .path("neighbours") + .build() + .toString(); +// .path(NodeResource.class) +// .path(NodeResource.class, "getNeighbourResource") +// .path(NeighbourResource.class) +// .resolveTemplate("nodeId", node.getId()) +// .build() +// .toString(); + return uri; + } + + @Path("{nodeId}/neighbours") + public NeighbourResource getNeighbourResource(){ + return new NeighbourResource(); + } +} |