Switch statements should end with a default case.
[bgpcep.git] / pcep / impl / src / main / java / org / opendaylight / protocol / pcep / impl / object / PCEPEndPointsIpv6ObjectParser.java
index 3ab96d2a5771fba7c9a60580ef421f19794aeb28..f5267ce742bdc853f5c5b45a0f8189a341da158a 100644 (file)
@@ -7,18 +7,24 @@
  */
 package org.opendaylight.protocol.pcep.impl.object;
 
-import org.opendaylight.protocol.concepts.Ipv6Util;
+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 org.opendaylight.protocol.pcep.spi.ObjectParser;
+import org.opendaylight.protocol.pcep.spi.ObjectSerializer;
+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.TlvHandlerRegistry;
 import org.opendaylight.protocol.pcep.spi.UnknownObject;
-import org.opendaylight.protocol.util.ByteArray;
+import org.opendaylight.protocol.util.Ipv6Util;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.AddressFamily;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.address.family.Ipv6Case;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.address.family.Ipv6CaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.address.family.ipv6._case.Ipv6;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.address.family.ipv6._case.Ipv6Builder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.object.EndpointsObj;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.object.EndpointsObjBuilder;
@@ -28,78 +34,46 @@ import org.slf4j.LoggerFactory;
 /**
  * Parser for IPv6 {@link EndpointsObj}
  */
-public class PCEPEndPointsIpv6ObjectParser extends AbstractObjectWithTlvsParser<EndpointsObjBuilder> {
-
-       private static final Logger LOG = LoggerFactory.getLogger(PCEPEndPointsIpv4ObjectParser.class);
-
-       public static final int CLASS = 4;
-       public static final int TYPE = 2;
-
-       /*
-        * fields lengths and offsets for IPv4 in bytes
-        */
-       private static final int SRC6_F_LENGTH = 16;
-       private static final int DEST6_F_LENGTH = 16;
-
-       private static final int SRC6_F_OFFSET = 0;
-       private static final int DEST6_F_OFFSET = SRC6_F_OFFSET + SRC6_F_LENGTH;
-
-       public PCEPEndPointsIpv6ObjectParser(final TlvHandlerRegistry tlvReg) {
-               super(tlvReg);
-       }
-
-       @Override
-       public Object parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException {
-               if (bytes == null) {
-                       throw new IllegalArgumentException("Array of bytes is mandatory");
-               }
-               final EndpointsObjBuilder builder = new EndpointsObjBuilder();
-               builder.setIgnore(header.isIgnore());
-               builder.setProcessingRule(header.isProcessingRule());
-               if (!builder.isProcessingRule()) {
-                       LOG.debug("Processed bit not set on Endpoints OBJECT, ignoring it.");
-                       return new UnknownObject(PCEPErrors.P_FLAG_NOT_SET, builder.build());
-               }
-               if (bytes.length != SRC6_F_LENGTH + DEST6_F_LENGTH) {
-                       throw new PCEPDeserializerException("Wrong length of array of bytes.");
-               }
-               final Ipv6Builder b = new Ipv6Builder();
-               b.setSourceIpv6Address(Ipv6Util.addressForBytes(ByteArray.subByte(bytes, SRC6_F_OFFSET, SRC6_F_LENGTH)));
-               b.setDestinationIpv6Address((Ipv6Util.addressForBytes(ByteArray.subByte(bytes, DEST6_F_OFFSET, DEST6_F_LENGTH))));
-               builder.setAddressFamily(new Ipv6CaseBuilder().setIpv6(b.build()).build());
-               return builder.build();
-       }
-
-       @Override
-       public void addTlv(final EndpointsObjBuilder builder, final Tlv tlv) {
-               // No tlvs defined
-       }
+public class PCEPEndPointsIpv6ObjectParser implements ObjectParser, ObjectSerializer {
 
-       @Override
-       public byte[] serializeObject(final Object object) {
-               if (!(object instanceof EndpointsObj)) {
-                       throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed EndpointsObject.");
-               }
-               final EndpointsObj ePObj = (EndpointsObj) object;
+    private static final Logger LOG = LoggerFactory.getLogger(PCEPEndPointsIpv6ObjectParser.class);
 
-               final AddressFamily afi = ePObj.getAddressFamily();
+    public static final int CLASS = 4;
 
-               if (!(afi instanceof Ipv6Case)) {
-                       throw new IllegalArgumentException("Wrong instance of NetworkAddress. Passed " + afi.getClass() + ". Needed IPv4");
-               }
-               final byte[] retBytes = new byte[SRC6_F_LENGTH + DEST6_F_LENGTH];
-               ByteArray.copyWhole(Ipv6Util.bytesForAddress((((Ipv6Case) afi).getIpv6()).getSourceIpv6Address()), retBytes, SRC6_F_OFFSET);
-               ByteArray.copyWhole(Ipv6Util.bytesForAddress((((Ipv6Case) afi).getIpv6()).getDestinationIpv6Address()), retBytes, DEST6_F_OFFSET);
-               return retBytes;
-       }
+    public static final int TYPE = 2;
 
-       @Override
-       public int getObjectType() {
-               return TYPE;
-       }
+    @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 * 2) {
+            throw new PCEPDeserializerException("Wrong length of array of bytes.");
+        }
+        builder.setIgnore(header.isIgnore());
+        builder.setProcessingRule(header.isProcessingRule());
+        final Ipv6Builder b = new Ipv6Builder();
+        b.setSourceIpv6Address(Ipv6Util.addressForByteBuf(bytes));
+        b.setDestinationIpv6Address(Ipv6Util.addressForByteBuf(bytes));
+        builder.setAddressFamily(new Ipv6CaseBuilder().setIpv6(b.build()).build());
+        return builder.build();
+    }
 
-       @Override
-       public int getObjectClass() {
-               return CLASS;
-       }
+    @Override
+    public void serializeObject(final Object object, final ByteBuf buffer) {
+        Preconditions.checkArgument(object instanceof EndpointsObj, "Wrong instance of PCEPObject. Passed %s. Needed EndpointsObject.", object.getClass());
+        final EndpointsObj ePObj = (EndpointsObj) object;
+        final AddressFamily afi = ePObj.getAddressFamily();
+        Preconditions.checkArgument(afi instanceof Ipv6Case, "Wrong instance of NetworkAddress. Passed %s. Needed IPv6", afi.getClass());
+        final ByteBuf body = Unpooled.buffer(Ipv6Util.IPV6_LENGTH + Ipv6Util.IPV6_LENGTH);
+        final Ipv6 ipv6 = ((Ipv6Case) afi).getIpv6();
+        Preconditions.checkArgument(ipv6.getSourceIpv6Address() != null, "SourceIpv6Address is mandatory.");
+        writeIpv6Address(ipv6.getSourceIpv6Address(), body);
+        Preconditions.checkArgument(ipv6.getDestinationIpv6Address() != null, "DestinationIpv6Address is mandatory.");
+        writeIpv6Address(ipv6.getDestinationIpv6Address(), body);
+        ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
+    }
 }