renderers/vpp/src/main/java/org/opendaylight/groupbasedpolicy/renderer/vpp/iface/VppPathMapper.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.groupbasedpolicy.renderer.vpp.iface;
  10
  11 import javax.annotation.Nullable;
  12
  13 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.VppIidFactory;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  17
  18 import com.google.common.base.Optional;
  19 import com.google.common.base.Strings;
  20
  21 public class VppPathMapper {
  22
  23     private static final String INTERFACE_PATH_BEFORE_KEY =
  24             "/ietf-interfaces:interfaces/ietf-interfaces:interface[ietf-interfaces:name='";
  25     private static final String INTERFACE_PATH_AFTER_KEY = "']";
  26     private static final int INTERFACE_PATH_MIN_LENGTH =
  27             INTERFACE_PATH_BEFORE_KEY.length() + INTERFACE_PATH_AFTER_KEY.length() + 1;
  28     private static final String BD_PATH_BEFORE_KEY = "/v3po:vpp/v3po:bridge-domains/v3po:bridge-domain[v3po:name='";
  29     private static final String BD_PATH_AFTER_KEY = "']";
  30     private static final int BD_PATH_MIN_LENGTH = BD_PATH_BEFORE_KEY.length() + BD_PATH_AFTER_KEY.length() + 1;
  31
  32     private VppPathMapper() {}
  33
  34     public static String interfaceToRestPath(String interfaceName) {
  35         return INTERFACE_PATH_BEFORE_KEY + interfaceName + INTERFACE_PATH_AFTER_KEY;
  36     }
  37
  38     public static Optional<InstanceIdentifier<Interface>> interfaceToInstanceIdentifier(@Nullable String restPath) {
  39         if (Strings.isNullOrEmpty(restPath)) {
  40             return Optional.absent();
  41         }
  42         if (restPath.length() < INTERFACE_PATH_MIN_LENGTH) {
  43             return Optional.absent();
  44         }
  45         if (!restPath.startsWith(INTERFACE_PATH_BEFORE_KEY)) {
  46             return Optional.absent();
  47         }
  48         if (!restPath.endsWith(INTERFACE_PATH_AFTER_KEY)) {
  49             return Optional.absent();
  50         }
  51         int endIndexInterfaceName = restPath.length() - INTERFACE_PATH_AFTER_KEY.length();
  52         String interfaceName = restPath.substring(INTERFACE_PATH_BEFORE_KEY.length(), endIndexInterfaceName);
  53         return Optional.of(VppIidFactory.getInterfaceIID(new InterfaceKey(interfaceName)));
  54     }
  55
  56     public static Optional<String> interfacePathToInterfaceName(@Nullable String restPath) {
  57         if (Strings.isNullOrEmpty(restPath)) {
  58             return Optional.absent();
  59         }
  60         if (restPath.length() < INTERFACE_PATH_MIN_LENGTH) {
  61             return Optional.absent();
  62         }
  63         if (!restPath.startsWith(INTERFACE_PATH_BEFORE_KEY)) {
  64             return Optional.absent();
  65         }
  66         if (!restPath.endsWith(INTERFACE_PATH_AFTER_KEY)) {
  67             return Optional.absent();
  68         }
  69         int endIndexInterfaceName = restPath.length() - INTERFACE_PATH_AFTER_KEY.length();
  70         String interfaceName = restPath.substring(INTERFACE_PATH_BEFORE_KEY.length(), endIndexInterfaceName);
  71         return Optional.of(interfaceName);
  72     }
  73
  74     public static String bridgeDomainToRestPath(String bridgeDomainName) {
  75         return BD_PATH_BEFORE_KEY + bridgeDomainName + BD_PATH_AFTER_KEY;
  76     }
  77
  78 }