io.netlibs.bgp.netty.protocol.NotificationPacket.java Source code

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Here is the source code for io.netlibs.bgp.netty.protocol.NotificationPacket.java

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/**
 *  Copyright 2012 Rainer Bieniek (Rainer.Bieniek@web.de)
 *
 *  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.netlibs.bgp.netty.protocol;

import org.apache.commons.lang3.builder.ToStringBuilder;

import io.netlibs.bgp.protocol.BGPv4Constants;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

/**
 * @author Rainer Bieniek (Rainer.Bieniek@web.de)
 *
 */
public class NotificationPacket extends BGPv4Packet {
    private final int errorCode;
    private final int errorSubcode;

    protected NotificationPacket(final int errorCode, final int errorSubcode) {
        this.errorCode = errorCode;
        this.errorSubcode = errorSubcode;
    }

    @Override
    protected final ByteBuf encodePayload() {
        final ByteBuf buffer = Unpooled.buffer(BGPv4Constants.BGP_PACKET_MAX_LENGTH);

        buffer.writeByte(this.errorCode);
        buffer.writeByte(this.errorSubcode);

        final ByteBuf additionalPayload = this.encodeAdditionalPayload();

        if (additionalPayload != null) {
            buffer.writeBytes(additionalPayload);
        }

        return buffer;
    }

    @Override
    public final int getType() {
        return BGPv4Constants.BGP_PACKET_TYPE_NOTIFICATION;
    }

    /**
     * @return the errorCode
     */
    public final int getErrorCode() {
        return this.errorCode;
    }

    /**
     * @return the errorSubcode
     */
    public final int getErrorSubcode() {
        return this.errorSubcode;
    }

    protected ByteBuf encodeAdditionalPayload() {
        return null;
    }

    @Override
    public <T> T apply(final BGPv4PacketVisitor<T> visitor) {
        return visitor.visit(this);
    }

    @Override
    public String toString() {
        return (new ToStringBuilder(this)).append("type", this.getType()).append("errorCode", this.errorCode)
                .append("errorSubcode", this.errorSubcode).toString();
    }
}