Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 1 | package net.floodlightcontroller.virtualnetwork; |
| 2 | |
| 3 | import java.io.IOException; |
| 4 | import java.util.Collection; |
| 5 | |
| 6 | import net.floodlightcontroller.packet.IPv4; |
| 7 | |
| 8 | import org.codehaus.jackson.JsonParseException; |
| 9 | import org.codehaus.jackson.JsonParser; |
| 10 | import org.codehaus.jackson.JsonToken; |
| 11 | import org.codehaus.jackson.map.MappingJsonFactory; |
| 12 | import org.restlet.data.Status; |
| 13 | import org.restlet.resource.Delete; |
| 14 | import org.restlet.resource.Get; |
| 15 | import org.restlet.resource.Post; |
| 16 | import org.restlet.resource.Put; |
| 17 | import org.restlet.resource.ServerResource; |
| 18 | import org.slf4j.Logger; |
| 19 | import org.slf4j.LoggerFactory; |
| 20 | |
| 21 | public class NetworkResource extends ServerResource { |
| 22 | protected static Logger log = LoggerFactory.getLogger(NetworkResource.class); |
| 23 | |
| 24 | public class NetworkDefinition { |
| 25 | public String name = null; |
| 26 | public String guid = null; |
| 27 | public String gateway = null; |
| 28 | } |
| 29 | |
| 30 | protected void jsonToNetworkDefinition(String json, NetworkDefinition network) throws IOException { |
| 31 | MappingJsonFactory f = new MappingJsonFactory(); |
| 32 | JsonParser jp; |
| 33 | |
| 34 | try { |
| 35 | jp = f.createJsonParser(json); |
| 36 | } catch (JsonParseException e) { |
| 37 | throw new IOException(e); |
| 38 | } |
| 39 | |
| 40 | jp.nextToken(); |
| 41 | if (jp.getCurrentToken() != JsonToken.START_OBJECT) { |
| 42 | throw new IOException("Expected START_OBJECT"); |
| 43 | } |
| 44 | |
| 45 | while (jp.nextToken() != JsonToken.END_OBJECT) { |
| 46 | if (jp.getCurrentToken() != JsonToken.FIELD_NAME) { |
| 47 | throw new IOException("Expected FIELD_NAME"); |
| 48 | } |
| 49 | |
| 50 | String n = jp.getCurrentName(); |
| 51 | jp.nextToken(); |
| 52 | if (jp.getText().equals("")) |
| 53 | continue; |
| 54 | else if (n.equals("network")) { |
| 55 | while (jp.nextToken() != JsonToken.END_OBJECT) { |
| 56 | String field = jp.getCurrentName(); |
| 57 | if (field.equals("name")) { |
| 58 | network.name = jp.getText(); |
| 59 | } else if (field.equals("gateway")) { |
| 60 | String gw = jp.getText(); |
| 61 | if ((gw != null) && (!gw.equals("null"))) |
| 62 | network.gateway = gw; |
| 63 | } else if (field.equals("id")) { |
| 64 | network.guid = jp.getText(); |
| 65 | } else { |
| 66 | log.warn("Unrecognized field {} in " + |
| 67 | "parsing network definition", |
| 68 | jp.getText()); |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | jp.close(); |
| 75 | } |
| 76 | |
| 77 | @Get("json") |
| 78 | public Collection <VirtualNetwork> retrieve() { |
| 79 | IVirtualNetworkService vns = |
| 80 | (IVirtualNetworkService)getContext().getAttributes(). |
| 81 | get(IVirtualNetworkService.class.getCanonicalName()); |
| 82 | |
| 83 | return vns.listNetworks(); |
| 84 | } |
| 85 | |
| 86 | @Put |
| 87 | @Post |
| 88 | public String createNetwork(String postData) { |
| 89 | NetworkDefinition network = new NetworkDefinition(); |
| 90 | try { |
| 91 | jsonToNetworkDefinition(postData, network); |
| 92 | } catch (IOException e) { |
| 93 | log.error("Could not parse JSON {}", e.getMessage()); |
| 94 | } |
| 95 | |
| 96 | // We try to get the ID from the URI only if it's not |
| 97 | // in the POST data |
| 98 | if (network.guid == null) { |
| 99 | String guid = (String) getRequestAttributes().get("network"); |
| 100 | if ((guid != null) && (!guid.equals("null"))) |
| 101 | network.guid = guid; |
| 102 | } |
| 103 | |
| 104 | IVirtualNetworkService vns = |
| 105 | (IVirtualNetworkService)getContext().getAttributes(). |
| 106 | get(IVirtualNetworkService.class.getCanonicalName()); |
| 107 | |
| 108 | Integer gw = null; |
| 109 | if (network.gateway != null) { |
| 110 | try { |
| 111 | gw = IPv4.toIPv4Address(network.gateway); |
| 112 | } catch (IllegalArgumentException e) { |
| 113 | log.warn("Could not parse gateway {} as IP for network {}, setting as null", |
| 114 | network.gateway, network.name); |
| 115 | network.gateway = null; |
| 116 | } |
| 117 | } |
| 118 | vns.createNetwork(network.guid, network.name, gw); |
| 119 | setStatus(Status.SUCCESS_OK); |
| 120 | return "{\"status\":\"ok\"}"; |
| 121 | } |
| 122 | |
| 123 | @Delete |
| 124 | public String deleteNetwork() { |
| 125 | IVirtualNetworkService vns = |
| 126 | (IVirtualNetworkService)getContext().getAttributes(). |
| 127 | get(IVirtualNetworkService.class.getCanonicalName()); |
| 128 | String guid = (String) getRequestAttributes().get("network"); |
| 129 | vns.deleteNetwork(guid); |
| 130 | setStatus(Status.SUCCESS_OK); |
| 131 | return "{\"status\":\"ok\"}"; |
| 132 | } |
| 133 | } |