Bug-479: Implementation of Vendor-Information TLV
[bgpcep.git] / pcep / impl / src / main / java / org / opendaylight / protocol / pcep / impl / object / PCEPNotificationObjectParser.java
index cfe395b28b642d7c478542128437f2133908070f..d4b7dbc1fc8d8f66ac18ffb008643cce9da03014 100644 (file)
  */
 package org.opendaylight.protocol.pcep.impl.object;
 
-import org.opendaylight.protocol.pcep.PCEPDeserializerException;
-import org.opendaylight.protocol.pcep.PCEPDocumentedException;
-import org.opendaylight.protocol.pcep.impl.Util;
+import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedByte;
+
+import com.google.common.base.Preconditions;
+import com.google.common.primitives.UnsignedBytes;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import java.util.List;
 import org.opendaylight.protocol.pcep.spi.AbstractObjectWithTlvsParser;
-import org.opendaylight.protocol.pcep.spi.TlvHandlerRegistry;
-import org.opendaylight.protocol.util.ByteArray;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.NotificationObject;
+import org.opendaylight.protocol.pcep.spi.ObjectUtil;
+import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
+import org.opendaylight.protocol.pcep.spi.TlvRegistry;
+import org.opendaylight.protocol.pcep.spi.VendorInformationTlvRegistry;
 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.OverloadDurationTlv;
 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.notification.object.Tlvs;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.notification.object.TlvsBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.notification.object.tlvs.OverloadDurationBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcntf.message.pcntf.message.notifications.NotificationsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.notification.object.CNotification;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.notification.object.CNotificationBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.notification.object.c.notification.Tlvs;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.notification.object.c.notification.TlvsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.overload.duration.tlv.OverloadDuration;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vendor.information.tlvs.VendorInformationTlv;
 
 /**
- * Parser for {@link NotificationObject}
+ * Parser for {@link CNotification}
  */
-public class PCEPNotificationObjectParser extends AbstractObjectWithTlvsParser<NotificationsBuilder> {
-
-       public static final int CLASS = 12;
-
-       public static final int TYPE = 1;
-
-       /*
-        * lengths of fields
-        */
-       public static final int FLAGS_F_LENGTH = 1;
-       public static final int NT_F_LENGTH = 1;
-       public static final int NV_F_LENGTH = 1;
-
-       /*
-        * offsets of fields
-        */
-       public static final int FLAGS_F_OFFSET = 1; // added reserved filed of size 1
-       public static final int NT_F_OFFSET = FLAGS_F_OFFSET + FLAGS_F_LENGTH;
-       public static final int NV_F_OFFSET = NT_F_OFFSET + NT_F_LENGTH;
-       public static final int TLVS_OFFSET = NV_F_OFFSET + NV_F_LENGTH;
-
-       public PCEPNotificationObjectParser(final TlvHandlerRegistry tlvReg) {
-               super(tlvReg);
-       }
-
-       @Override
-       public NotificationObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException,
-       PCEPDocumentedException {
-               if (bytes == null || bytes.length == 0) {
-                       throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
-               }
-
-               final NotificationsBuilder builder = new NotificationsBuilder();
-
-               parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_OFFSET));
-
-               builder.setIgnore(header.isIgnore());
-               builder.setProcessingRule(header.isProcessingRule());
-
-               builder.setType((short) (bytes[NT_F_OFFSET] & 0xFF));
-               builder.setValue((short) (bytes[NV_F_OFFSET] & 0xFF));
-
-               return builder.build();
-       }
-
-       @Override
-       public void addTlv(final NotificationsBuilder builder, final Tlv tlv) {
-               if (tlv instanceof OverloadDurationTlv && builder.getType() == 2 && builder.getValue() == 1) {
-                       builder.setTlvs(new TlvsBuilder().setOverloadDuration(
-                                       new OverloadDurationBuilder().setDuration(((OverloadDurationTlv) tlv).getDuration()).build()).build());
-               }
-       }
-
-       @Override
-       public byte[] serializeObject(final Object object) {
-               if (!(object instanceof NotificationObject)) {
-                       throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed NotificationObject.");
-               }
-
-               final NotificationObject notObj = (NotificationObject) object;
-
-               final byte[] tlvs = serializeTlvs(notObj.getTlvs());
-               int tlvsLength = 0;
-               if (tlvs != null) {
-                       tlvsLength = tlvs.length;
-               }
-               final byte[] retBytes = new byte[TLVS_OFFSET + tlvsLength + Util.getPadding(TLVS_OFFSET + tlvs.length, PADDED_TO)];
-
-               if (tlvs != null) {
-                       ByteArray.copyWhole(tlvs, retBytes, TLVS_OFFSET);
-               }
-
-               retBytes[NT_F_OFFSET] = ByteArray.shortToBytes(notObj.getType())[1];
-               retBytes[NV_F_OFFSET] = ByteArray.shortToBytes(notObj.getValue())[1];
-
-               return retBytes;
-       }
-
-       public byte[] serializeTlvs(final Tlvs tlvs) {
-               if (tlvs.getOverloadDuration() != null) {
-                       // FIXME : add
-                       // return serializeTlv(new NoPathVectorBuilder().setFlags(tlvs.getNoPathVector()).build());
-               }
-               return null;
-       }
-
-       @Override
-       public int getObjectType() {
-               return TYPE;
-       }
-
-       @Override
-       public int getObjectClass() {
-               return CLASS;
-       }
+public class PCEPNotificationObjectParser extends AbstractObjectWithTlvsParser<CNotificationBuilder> {
+
+    public static final int CLASS = 12;
+
+    public static final int TYPE = 1;
+
+    /*
+     * offsets of fields
+     */
+    private static final int NT_F_OFFSET = 2;
+
+    public PCEPNotificationObjectParser(final TlvRegistry tlvReg, final VendorInformationTlvRegistry viTlvReg) {
+        super(tlvReg, viTlvReg);
+    }
+
+    @Override
+    public CNotification 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 CNotificationBuilder builder = new CNotificationBuilder();
+        builder.setIgnore(header.isIgnore());
+        builder.setProcessingRule(header.isProcessingRule());
+        bytes.readerIndex(bytes.readerIndex() + NT_F_OFFSET);
+        builder.setType((short) UnsignedBytes.toInt(bytes.readByte()));
+        builder.setValue((short) UnsignedBytes.toInt(bytes.readByte()));
+        parseTlvs(builder, bytes.slice());
+        return builder.build();
+    }
+
+    @Override
+    public void addTlv(final CNotificationBuilder builder, final Tlv tlv) {
+        if (tlv instanceof OverloadDuration && builder.getType() == 2 && builder.getValue() == 1) {
+            builder.setTlvs(new TlvsBuilder().setOverloadDuration((OverloadDuration) tlv).build());
+        }
+    }
+
+    @Override
+    public void serializeObject(final Object object, final ByteBuf buffer) {
+        Preconditions.checkArgument(object instanceof CNotification, "Wrong instance of PCEPObject. Passed %s. Needed CNotificationObject.", object.getClass());
+        final CNotification notObj = (CNotification) object;
+        final ByteBuf body = Unpooled.buffer();
+        body.writeZero(NT_F_OFFSET);
+        Preconditions.checkArgument(notObj.getType() != null, "Type is mandatory.");
+        writeUnsignedByte(notObj.getType(), body);
+        Preconditions.checkArgument(notObj.getValue() != null, "Value is mandatory.");
+        writeUnsignedByte(notObj.getValue(), body);
+        serializeTlvs(notObj.getTlvs(), body);
+        ObjectUtil.formatSubobject(TYPE, CLASS, object.isProcessingRule(), object.isIgnore(), body, buffer);
+    }
+
+    public void serializeTlvs(final Tlvs tlvs, final ByteBuf body) {
+        if (tlvs == null) {
+            return;
+        }
+        if (tlvs.getOverloadDuration() != null) {
+            serializeTlv(tlvs.getOverloadDuration(), body);
+        }
+        serializeVendorInformationTlvs(tlvs.getVendorInformationTlv(), body);
+    }
+
+    @Override
+    protected final void addVendorInformationTlvs(final CNotificationBuilder builder, final List<VendorInformationTlv> tlvs) {
+        if (!tlvs.isEmpty()) {
+            builder.setTlvs(new TlvsBuilder(builder.getTlvs()).setVendorInformationTlv(tlvs).build());
+        }
+    }
 }