diff options
author | Jan Srnicek <jsrnicek@cisco.com> | 2016-12-01 18:15:52 +0100 |
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committer | Jan Srnicek <jsrnicek@cisco.com> | 2016-12-01 18:16:47 +0100 |
commit | 32aa07e5517fba7f78ae79d2ba83b56f72a53293 (patch) | |
tree | 26256f30f2dc5c3521403ef3fcd2e038b2f9bca6 /routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/RoutingProtocolCustomizer.java | |
parent | 9c9935c83ce9869ca36cbde7865423ef02f19db8 (diff) |
HONEYCOMB-58 - Routing Plugin Structure
Read/Write support for ipv4/6 static routes.
Restriction due to vpp implementation described
in readme.
Change-Id: I328f406a9b7cb8781f8becf98eca293cebe66859
Signed-off-by: Jan Srnicek <jsrnicek@cisco.com>
Diffstat (limited to 'routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/RoutingProtocolCustomizer.java')
-rw-r--r-- | routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/RoutingProtocolCustomizer.java | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/RoutingProtocolCustomizer.java b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/RoutingProtocolCustomizer.java new file mode 100644 index 000000000..220f07690 --- /dev/null +++ b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/RoutingProtocolCustomizer.java @@ -0,0 +1,103 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * + * 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 io.fd.hc2vpp.routing.write; + +import static com.google.common.base.Preconditions.checkArgument; +import static com.google.common.base.Preconditions.checkState; + +import io.fd.hc2vpp.common.translate.util.NamingContext; +import io.fd.honeycomb.translate.MappingContext; +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +import io.fd.honeycomb.translate.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.Static; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocol; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocolKey; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.RoutingProtocolVppAttr; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * Customizer for handling of write operations for {@link RoutingProtocol} + */ +public class RoutingProtocolCustomizer + implements ListWriterCustomizer<RoutingProtocol, RoutingProtocolKey> { + + private final NamingContext routingProtocolContext; + + public RoutingProtocolCustomizer(@Nonnull final NamingContext routingProtocolContext) { + this.routingProtocolContext = routingProtocolContext; + } + + @Override + public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<RoutingProtocol> instanceIdentifier, + @Nonnull final RoutingProtocol routingProtocol, + @Nonnull final WriteContext writeContext) + throws WriteFailedException { + checkIsStatic(routingProtocol); + + final int tableId = extractTableId(routingProtocol); + final MappingContext mappingContext = writeContext.getMappingContext(); + final String newProtocolName = routingProtocol.getName(); + + // enclosed in synchronized block to prevent change of state after containsName/before addName + synchronized (routingProtocolContext) { + if (!routingProtocolContext.containsName(tableId, mappingContext)) { + // if not present in mapping,create assignment to table id. This works only with auto-create flag enabled + // while using ip_add_del_table + routingProtocolContext.addName(tableId, newProtocolName, mappingContext); + } else { + throw new IllegalStateException(String.format( + "An attempt to assign protocol %s to table id %s. Table id already assigned to protocol %s", + newProtocolName, tableId, routingProtocolContext.getName(tableId, mappingContext))); + } + } + } + + @Override + public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<RoutingProtocol> instanceIdentifier, + @Nonnull final RoutingProtocol routingProtocolBefore, + @Nonnull final RoutingProtocol routingProtocolAfter, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + throw new WriteFailedException.UpdateFailedException(instanceIdentifier, routingProtocolBefore, + routingProtocolAfter, new UnsupportedOperationException("Operation not supported")); + } + + @Override + public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<RoutingProtocol> instanceIdentifier, + @Nonnull final RoutingProtocol routingProtocol, + @Nonnull final WriteContext writeContext) + throws WriteFailedException { + routingProtocolContext.removeName(routingProtocol.getName(), writeContext.getMappingContext()); + } + + /** + * Checks whether routing protocol is static(we support only static ones for now) + */ + private void checkIsStatic(final RoutingProtocol routingProtocol) { + checkArgument(routingProtocol.getType() == Static.class, "Only static routes are allowed"); + } + + private int extractTableId(final RoutingProtocol protocol) { + final RoutingProtocolVppAttr vppAttr = protocol.getAugmentation(RoutingProtocolVppAttr.class); + + checkState(vppAttr != null && vppAttr.getVppProtocolAttributes() != null, + "Vpp routing protocol attributes not defined"); + + return vppAttr.getVppProtocolAttributes().getPrimaryVrf().getValue().intValue(); + } +} |