1 files changed, 55 insertions, 0 deletions
diff --git a/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/LspWriter.java b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/LspWriter.java
new file mode 100644
index 000000000..0e68f0c40
--- /dev/null
+++ b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/LspWriter.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2017 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.mpls;
+
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.honeycomb.translate.MappingContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310.routing.mpls._static.lsps.StaticLsp;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Translates MPLS operations to VPP API calls.
+ */
+interface LspWriter extends ByteDataTranslator, JvppReplyConsumer {
+    /**
+     * Maximum number of MPLS labels supported by VPP.
+     *
+     * @see <a href="https://git.fd.io/vpp/tree/src/vnet/ip/ip.api">ip_add_del_route</a> definition
+     * @see <a href="https://git.fd.io/vpp/tree/src/vnet/mpls/mpls.api">mpls_route_add_del</a> definition
+     */
+    int MAX_LABELS = 255;
+
+    /**
+     * Constant used by VPP to disable optional parameters of mpls label type.
+     */
+    int MPLS_LABEL_INVALID = 0x100000;
+
+    /**
+     * Translates {@link StaticLsp} to jVpp requests and writes the configuration to VPP.
+     *
+     * @param id    identifier of data being written
+     * @param data  lsp to be written
+     * @param ctx   persisted storage where mapping matadata are stored
+     * @param isAdd determines if the write is create or delete operation
+     * @throws WriteFailedException if write was unsuccessful
+     */
+    void write(@Nonnull final InstanceIdentifier<StaticLsp> id, @Nonnull final StaticLsp data,
+               @Nonnull final MappingContext ctx, final boolean isAdd) throws WriteFailedException;
+}