/** * Copyright 2012, Big Switch Networks, Inc. * Originally created by David Erickson, Stanford University * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. You may obtain * a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. **/ package net.floodlightcontroller.devicemanager.web; import java.util.Iterator; import net.floodlightcontroller.devicemanager.IDevice; import net.floodlightcontroller.devicemanager.IDeviceService; import net.floodlightcontroller.devicemanager.SwitchPort; import net.floodlightcontroller.devicemanager.internal.Device; import net.floodlightcontroller.packet.IPv4; import net.floodlightcontroller.util.FilterIterator; import org.openflow.util.HexString; import org.restlet.data.Form; import org.restlet.data.Status; import org.restlet.resource.ServerResource; /** * Resource for querying and displaying devices that exist in the system */ public abstract class AbstractDeviceResource extends ServerResource { public static final String MAC_ERROR = "Invalid MAC address: must be a 48-bit quantity, " + "expressed in hex as AA:BB:CC:DD:EE:FF"; public static final String VLAN_ERROR = "Invalid VLAN: must be an integer in the range 0-4095"; public static final String IPV4_ERROR = "Invalid IPv4 address: must be in dotted decimal format, " + "234.0.59.1"; public static final String DPID_ERROR = "Invalid Switch DPID: must be a 64-bit quantity, expressed in " + "hex as AA:BB:CC:DD:EE:FF:00:11"; public static final String PORT_ERROR = "Invalid Port: must be a positive integer"; public Iterator<? extends IDevice> getDevices() { IDeviceService deviceManager = (IDeviceService)getContext().getAttributes(). get(IDeviceService.class.getCanonicalName()); Long macAddress = null; Short vlan = null; Integer ipv4Address = null; Long switchDPID = null; Integer switchPort = null; Form form = getQuery(); String macAddrStr = form.getFirstValue("mac", true); String vlanStr = form.getFirstValue("vlan", true); String ipv4Str = form.getFirstValue("ipv4", true); String dpid = form.getFirstValue("dpid", true); String port = form.getFirstValue("port", true); if (macAddrStr != null) { try { macAddress = HexString.toLong(macAddrStr); } catch (Exception e) { setStatus(Status.CLIENT_ERROR_BAD_REQUEST, MAC_ERROR); return null; } } if (vlanStr != null) { try { vlan = Short.parseShort(vlanStr); if (vlan > 4095 || vlan < 0) { setStatus(Status.CLIENT_ERROR_BAD_REQUEST, VLAN_ERROR); return null; } } catch (Exception e) { setStatus(Status.CLIENT_ERROR_BAD_REQUEST, VLAN_ERROR); return null; } } if (ipv4Str != null) { try { ipv4Address = IPv4.toIPv4Address(ipv4Str); } catch (Exception e) { setStatus(Status.CLIENT_ERROR_BAD_REQUEST, IPV4_ERROR); return null; } } if (dpid != null) { try { switchDPID = HexString.toLong(dpid); } catch (Exception e) { setStatus(Status.CLIENT_ERROR_BAD_REQUEST, DPID_ERROR); return null; } } if (port != null) { try { switchPort = Integer.parseInt(port); if (switchPort < 0) { setStatus(Status.CLIENT_ERROR_BAD_REQUEST, PORT_ERROR); return null; } } catch (Exception e) { setStatus(Status.CLIENT_ERROR_BAD_REQUEST, PORT_ERROR); return null; } } @SuppressWarnings("unchecked") Iterator<Device> diter = (Iterator<Device>) deviceManager.queryDevices(macAddress, vlan, ipv4Address, switchDPID, switchPort); final String macStartsWith = form.getFirstValue("mac__startswith", true); final String vlanStartsWith = form.getFirstValue("vlan__startswith", true); final String ipv4StartsWith = form.getFirstValue("ipv4__startswith", true); final String dpidStartsWith = form.getFirstValue("dpid__startswith", true); final String portStartsWith = form.getFirstValue("port__startswith", true); return new FilterIterator<Device>(diter) { @Override protected boolean matches(Device value) { if (macStartsWith != null) { if (!value.getMACAddressString().startsWith(macStartsWith)) return false; } if (vlanStartsWith != null) { boolean match = false; for (Short v : value.getVlanId()) { if (v != null && v.toString().startsWith(vlanStartsWith)) { match = true; break; } } if (!match) return false; } if (ipv4StartsWith != null) { boolean match = false; for (Integer v : value.getIPv4Addresses()) { String str = IPv4.fromIPv4Address(v); if (v != null && str.startsWith(ipv4StartsWith)) { match = true; break; } } if (!match) return false; } if (dpidStartsWith != null) { boolean match = false; for (SwitchPort v : value.getAttachmentPoints(true)) { String str = HexString.toHexString(v.getSwitchDPID(), 8); if (v != null && str.startsWith(dpidStartsWith)) { match = true; break; } } if (!match) return false; } if (portStartsWith != null) { boolean match = false; for (SwitchPort v : value.getAttachmentPoints(true)) { String str = Integer.toString(v.getPort()); if (v != null && str.startsWith(portStartsWith)) { match = true; break; } } if (!match) return false; } return true; } }; } }