package net.floodlightcontroller.virtualnetwork; import java.io.IOException; import java.util.Collection; import net.floodlightcontroller.packet.IPv4; import org.codehaus.jackson.JsonParseException; import org.codehaus.jackson.JsonParser; import org.codehaus.jackson.JsonToken; import org.codehaus.jackson.map.MappingJsonFactory; import org.restlet.data.Status; import org.restlet.resource.Delete; import org.restlet.resource.Get; import org.restlet.resource.Post; import org.restlet.resource.Put; import org.restlet.resource.ServerResource; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class NetworkResource extends ServerResource { protected static Logger log = LoggerFactory.getLogger(NetworkResource.class); public class NetworkDefinition { public String name = null; public String guid = null; public String gateway = null; } protected void jsonToNetworkDefinition(String json, NetworkDefinition network) throws IOException { MappingJsonFactory f = new MappingJsonFactory(); JsonParser jp; try { jp = f.createJsonParser(json); } catch (JsonParseException e) { throw new IOException(e); } jp.nextToken(); if (jp.getCurrentToken() != JsonToken.START_OBJECT) { throw new IOException("Expected START_OBJECT"); } while (jp.nextToken() != JsonToken.END_OBJECT) { if (jp.getCurrentToken() != JsonToken.FIELD_NAME) { throw new IOException("Expected FIELD_NAME"); } String n = jp.getCurrentName(); jp.nextToken(); if (jp.getText().equals("")) continue; else if (n.equals("network")) { while (jp.nextToken() != JsonToken.END_OBJECT) { String field = jp.getCurrentName(); if (field.equals("name")) { network.name = jp.getText(); } else if (field.equals("gateway")) { String gw = jp.getText(); if ((gw != null) && (!gw.equals("null"))) network.gateway = gw; } else if (field.equals("id")) { network.guid = jp.getText(); } else { log.warn("Unrecognized field {} in " + "parsing network definition", jp.getText()); } } } } jp.close(); } @Get("json") public Collection <VirtualNetwork> retrieve() { IVirtualNetworkService vns = (IVirtualNetworkService)getContext().getAttributes(). get(IVirtualNetworkService.class.getCanonicalName()); return vns.listNetworks(); } @Put @Post public String createNetwork(String postData) { NetworkDefinition network = new NetworkDefinition(); try { jsonToNetworkDefinition(postData, network); } catch (IOException e) { log.error("Could not parse JSON {}", e.getMessage()); } // We try to get the ID from the URI only if it's not // in the POST data if (network.guid == null) { String guid = (String) getRequestAttributes().get("network"); if ((guid != null) && (!guid.equals("null"))) network.guid = guid; } IVirtualNetworkService vns = (IVirtualNetworkService)getContext().getAttributes(). get(IVirtualNetworkService.class.getCanonicalName()); Integer gw = null; if (network.gateway != null) { try { gw = IPv4.toIPv4Address(network.gateway); } catch (IllegalArgumentException e) { log.warn("Could not parse gateway {} as IP for network {}, setting as null", network.gateway, network.name); network.gateway = null; } } vns.createNetwork(network.guid, network.name, gw); setStatus(Status.SUCCESS_OK); return "{\"status\":\"ok\"}"; } @Delete public String deleteNetwork() { IVirtualNetworkService vns = (IVirtualNetworkService)getContext().getAttributes(). get(IVirtualNetworkService.class.getCanonicalName()); String guid = (String) getRequestAttributes().get("network"); vns.deleteNetwork(guid); setStatus(Status.SUCCESS_OK); return "{\"status\":\"ok\"}"; } }