Create common parent for extensions families

[bgpcep.git] / bgp / extensions / mvpn / src / main / java / org / opendaylight / protocol / bgp / mvpn / impl / nlri / IntraAsIPmsiADHandler.java

diff --git a/bgp/extensions/mvpn/src/main/java/org/opendaylight/protocol/bgp/mvpn/impl/nlri/IntraAsIPmsiADHandler.java b/bgp/extensions/mvpn/src/main/java/org/opendaylight/protocol/bgp/mvpn/impl/nlri/IntraAsIPmsiADHandler.java
new file mode 100644 (file)
index 0000000..a4ad7e9
--- /dev/null
+++ b/bgp/extensions/mvpn/src/main/java/org/opendaylight/protocol/bgp/mvpn/impl/nlri/IntraAsIPmsiADHandler.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.protocol.bgp.mvpn.impl.nlri;
+
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.opendaylight.bgp.concepts.IpAddressUtil;
+import org.opendaylight.bgp.concepts.RouteDistinguisherUtil;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.NlriType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.intra.as.i.pmsi.a.d.grouping.IntraAsIPmsiAD;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.intra.as.i.pmsi.a.d.grouping.IntraAsIPmsiADBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.mvpn.MvpnChoice;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.mvpn.mvpn.choice.IntraAsIPmsiADCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.mvpn.mvpn.choice.IntraAsIPmsiADCaseBuilder;
+
+/**
+ * https://tools.ietf.org/html/rfc6514#section-4.1.
+ *
+ * @author Claudio D. Gasparini
+ */
+public final class IntraAsIPmsiADHandler extends AbstractMvpnNlri<IntraAsIPmsiADCase> {
+
+    private static final int IPV4_CONTENT_LENGTH = 12;
+    private static final int IPV6_CONTENT_LENGTH = 24;
+
+    @Override
+    public int getType() {
+        return NlriType.IntraAsIPmsiAD.getIntValue();
+    }
+
+    @Override
+    public IntraAsIPmsiADCase parseMvpn(final ByteBuf buffer) {
+        Preconditions.checkArgument(buffer.readableBytes() == IPV4_CONTENT_LENGTH
+                        || buffer.readableBytes() == IPV6_CONTENT_LENGTH,
+                "Wrong length of array of bytes. Passed: %s ;", buffer);
+        return new IntraAsIPmsiADCaseBuilder()
+                .setIntraAsIPmsiAD(new IntraAsIPmsiADBuilder()
+                        .setRouteDistinguisher(RouteDistinguisherUtil.parseRouteDistinguisher(buffer))
+                        .setOrigRouteIp(IpAddressUtil.addressForByteBufWOLength(buffer))
+                        .build())
+                .build();
+    }
+
+    @Override
+    protected ByteBuf serializeBody(final IntraAsIPmsiADCase mvpn) {
+        final IntraAsIPmsiAD route = mvpn.getIntraAsIPmsiAD();
+        final ByteBuf nlriByteBuf = Unpooled.buffer();
+        RouteDistinguisherUtil.serializeRouteDistinquisher(route.getRouteDistinguisher(), nlriByteBuf);
+        final ByteBuf orig = IpAddressUtil.bytesWOLengthFor(route.getOrigRouteIp());
+        Preconditions.checkArgument(orig.readableBytes() > 0);
+        nlriByteBuf.writeBytes(orig);
+        return nlriByteBuf;
+    }
+
+    @Override
+    public Class<? extends MvpnChoice> getClazz() {
+        return IntraAsIPmsiADCase.class;
+    }
+}