P2MP end points

[bgpcep.git] / pcep / base-parser / src / main / java / org / opendaylight / protocol / pcep / parser / object / end / points / PCEPP2MPEndPointsIpv6ObjectParser.java

diff --git a/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/object/end/points/PCEPP2MPEndPointsIpv6ObjectParser.java b/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/object/end/points/PCEPP2MPEndPointsIpv6ObjectParser.java
new file mode 100644 (file)
index 0000000..00797d8
--- /dev/null
+++ b/pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/object/end/points/PCEPP2MPEndPointsIpv6ObjectParser.java
@@ -0,0 +1,85 @@
+/*
+ * 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.pcep.parser.object.end.points;
+
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv6Address;
+
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import java.util.ArrayList;
+import java.util.List;
+import org.opendaylight.protocol.pcep.spi.CommonObjectParser;
+import org.opendaylight.protocol.pcep.spi.ObjectUtil;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
+import org.opendaylight.protocol.pcep.spi.PCEPErrors;
+import org.opendaylight.protocol.pcep.spi.UnknownObject;
+import org.opendaylight.protocol.util.Ipv6Util;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.ObjectHeader;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.P2mpLeaves;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.P2mpIpv6CaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.p2mp.ipv6._case.P2mpIpv6;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.p2mp.ipv6._case.P2mpIpv6Builder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.object.EndpointsObjBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class PCEPP2MPEndPointsIpv6ObjectParser extends CommonObjectParser {
+    private static final int CLASS = 4;
+    private static final int TYPE = 4;
+    private static final int LEAF_TYPE_SIZE = 32;
+    private static final Logger LOG = LoggerFactory.getLogger(PCEPP2MPEndPointsIpv6ObjectParser.class);
+
+    public PCEPP2MPEndPointsIpv6ObjectParser() {
+        super(CLASS, TYPE);
+    }
+
+    public static void serializeObject(
+        final Boolean processing,
+        final Boolean ignore,
+        final P2mpIpv6 p2mpIpv6,
+        final ByteBuf buffer) {
+        final List<Ipv6AddressNoZone> dest = p2mpIpv6.getDestinationIpv6Address();
+        Preconditions.checkArgument(dest != null, "DestinationIpv6Address is mandatory.");
+        final ByteBuf body = Unpooled.buffer(LEAF_TYPE_SIZE + Ipv6Util.IPV6_LENGTH + Ipv6Util.IPV6_LENGTH * dest.size());
+        Preconditions.checkArgument(p2mpIpv6.getSourceIpv6Address() != null,
+            "SourceIpv6Address is mandatory.");
+        body.writeInt(p2mpIpv6.getP2mpLeaves().getIntValue());
+        writeIpv6Address(p2mpIpv6.getSourceIpv6Address(), body);
+        dest.forEach(ipv6 -> writeIpv6Address(ipv6, body));
+        ObjectUtil.formatSubobject(TYPE, CLASS, processing, ignore, body, buffer);
+    }
+
+    @Override
+    public Object parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
+        Preconditions.checkArgument(bytes != null && bytes.isReadable(),
+            "Array of bytes is mandatory. Can't be null or empty.");
+        final EndpointsObjBuilder builder = new EndpointsObjBuilder();
+        if (!header.isProcessingRule()) {
+            LOG.debug("Processed bit not set on Endpoints OBJECT, ignoring it.");
+            return new UnknownObject(PCEPErrors.P_FLAG_NOT_SET, builder.build());
+        }
+        if (bytes.readableBytes() % Ipv6Util.IPV6_LENGTH != 4) {
+            throw new PCEPDeserializerException("Wrong length of array of bytes.");
+        }
+        builder.setIgnore(header.isIgnore());
+        builder.setProcessingRule(header.isProcessingRule());
+        final P2mpIpv6Builder p2mpIpv6Builder = new P2mpIpv6Builder();
+        p2mpIpv6Builder.setP2mpLeaves(P2mpLeaves.forValue(bytes.readInt()));
+        p2mpIpv6Builder.setSourceIpv6Address(Ipv6Util.noZoneAddressForByteBuf(bytes));
+        List<Ipv6AddressNoZone> dest = new ArrayList<>();
+        while (bytes.isReadable()) {
+            dest.add(Ipv6Util.noZoneAddressForByteBuf(bytes));
+        }
+        p2mpIpv6Builder.setDestinationIpv6Address(dest);
+        builder.setAddressFamily(new P2mpIpv6CaseBuilder().setP2mpIpv6(p2mpIpv6Builder.build()).build());
+        return builder.build();
+    }
+}