gerrit.fd Code Review - hc2vpp.git/blob

   1 /*
   2  * Copyright (c) 2016 Cisco and/or its affiliates.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package io.fd.honeycomb.v3po.translate.v3po.interfaces;
  18
  19 import com.google.common.base.Optional;
  20 import com.google.common.base.Preconditions;
  21 import io.fd.honeycomb.v3po.translate.spi.write.ChildWriterCustomizer;
  22 import io.fd.honeycomb.v3po.translate.v3po.util.FutureJVppCustomizer;
  23 import io.fd.honeycomb.v3po.translate.v3po.util.NamingContext;
  24 import io.fd.honeycomb.v3po.translate.v3po.util.VppApiInvocationException;
  25 import io.fd.honeycomb.v3po.translate.v3po.utils.V3poUtils;
  26 import io.fd.honeycomb.v3po.translate.write.WriteContext;
  27 import io.fd.honeycomb.v3po.translate.write.WriteFailedException;
  28 import java.util.concurrent.CompletionStage;
  29 import javax.annotation.Nonnull;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.TagRewriteOperation;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VlanTag;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VlanType;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.L2;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.l2.VlanTagRewrite;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.l2.VlanTagRewriteBuilder;
  37 import org.opendaylight.yangtools.yang.binding.DataObject;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  39 import org.openvpp.jvpp.dto.L2InterfaceVlanTagRewrite;
  40 import org.openvpp.jvpp.dto.L2InterfaceVlanTagRewriteReply;
  41 import org.openvpp.jvpp.future.FutureJVpp;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 /**
  46  * Writer Customizer responsible for vlan tag rewrite.<br>
  47  * Sends {@code l2_interface_vlan_tag_rewrite} message to VPP.<br>
  48  * Equivalent of invoking {@code vppctl set interface l2 tag-rewrite} command.
  49  */
  50 public class VlanTagRewriteCustomizer extends FutureJVppCustomizer implements ChildWriterCustomizer<VlanTagRewrite> {
  51
  52     private static final Logger LOG = LoggerFactory.getLogger(VlanTagRewriteCustomizer.class);
  53     private final NamingContext interfaceContext;
  54
  55     public VlanTagRewriteCustomizer(@Nonnull final FutureJVpp futureJvpp,
  56                                     @Nonnull final NamingContext interfaceContext) {
  57         super(futureJvpp);
  58         this.interfaceContext = Preconditions.checkNotNull(interfaceContext, "interfaceContext should not be null");
  59     }
  60
  61     @Nonnull
  62     @Override
  63     public Optional<VlanTagRewrite> extract(@Nonnull final InstanceIdentifier<VlanTagRewrite> currentId,
  64                                             @Nonnull final DataObject parentData) {
  65         return Optional.fromNullable(((L2) parentData).getVlanTagRewrite());
  66     }
  67
  68     @Override
  69     public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<VlanTagRewrite> id,
  70                                        @Nonnull final VlanTagRewrite dataAfter, @Nonnull final WriteContext writeContext)
  71             throws WriteFailedException.CreateFailedException {
  72         try {
  73             setTagRewrite(id.firstKeyOf(Interface.class).getName(), dataAfter);
  74         } catch (VppApiInvocationException e) {
  75             throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
  76         }
  77     }
  78
  79     private void setTagRewrite(final String ifname, final VlanTagRewrite cfg) throws VppApiInvocationException {
  80         final int swIfIndex = interfaceContext.getIndex(ifname);
  81         LOG.debug("Setting tag rewrite for interface {}(id=): {}", ifname, swIfIndex, cfg);
  82
  83         final CompletionStage<L2InterfaceVlanTagRewriteReply> replyCompletionStage =
  84                 getFutureJVpp().l2InterfaceVlanTagRewrite(getTagRewriteRequest(swIfIndex, cfg));
  85
  86         final L2InterfaceVlanTagRewriteReply reply = V3poUtils.getReply(replyCompletionStage.toCompletableFuture());
  87         if (reply.retval < 0) {
  88             LOG.debug("Failed to set tag rewrite for interface {}(id=): {}", ifname, swIfIndex, cfg);
  89             throw new VppApiInvocationException("l2InterfaceVlanTagRewrite", reply.context, reply.retval);
  90         } else {
  91             LOG.debug("Tag rewrite for interface {}(id=) set successfully: {}", ifname, swIfIndex, cfg);
  92         }
  93     }
  94
  95     private L2InterfaceVlanTagRewrite getTagRewriteRequest(final int swIfIndex, final VlanTagRewrite cfg) {
  96         final L2InterfaceVlanTagRewrite request = new L2InterfaceVlanTagRewrite();
  97         request.swIfIndex = swIfIndex;
  98
  99         request.vtrOp = cfg.getRewriteOperation().getIntValue(); // TODO make mandatory
 100         request.pushDot1Q = (byte) (VlanType._802dot1q.equals(cfg.getFirstPushed())
 101                 ? 1
 102                 : 0);
 103         final VlanTag tag1 = cfg.getTag1();
 104         if (tag1 != null) {
 105             request.tag1 = tag1.getValue();
 106         }
 107         final VlanTag tag2 = cfg.getTag2();
 108         if (tag2 != null) {
 109             request.tag2 = tag2.getValue();
 110         }
 111         return request;
 112     }
 113
 114     @Override
 115     public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<VlanTagRewrite> id,
 116                                         @Nonnull final VlanTagRewrite dataBefore,
 117                                         @Nonnull final VlanTagRewrite dataAfter, @Nonnull final WriteContext writeContext)
 118             throws WriteFailedException {
 119         if (dataBefore.equals(dataAfter)) {
 120             LOG.debug("dataBefore equals dataAfter, update will not be performed");
 121             return;
 122         }
 123         try {
 124             setTagRewrite(id.firstKeyOf(Interface.class).getName(), dataAfter);
 125         } catch (VppApiInvocationException e) {
 126             throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter, e);
 127         }
 128     }
 129
 130     @Override
 131     public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<VlanTagRewrite> id,
 132                                         @Nonnull final VlanTagRewrite dataBefore, @Nonnull final WriteContext writeContext)
 133             throws WriteFailedException.DeleteFailedException {
 134         try {
 135             // disable tag rewrite
 136             final VlanTagRewriteBuilder builder = new VlanTagRewriteBuilder();
 137             builder.setRewriteOperation(TagRewriteOperation.Disabled);
 138             setTagRewrite(id.firstKeyOf(Interface.class).getName(), builder.build());
 139         } catch (VppApiInvocationException e) {
 140             throw new WriteFailedException.DeleteFailedException(id, e);
 141         }
 142     }
 143 }