io.netlibs.bgp.protocol.attributes.MultiProtocolReachableNLRI.java Source code

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Here is the source code for io.netlibs.bgp.protocol.attributes.MultiProtocolReachableNLRI.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.
 *
 * File: org.bgp4j.netty.protocol.update.MultiProtocolReachableNLRI.java
 */
package io.netlibs.bgp.protocol.attributes;

import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import org.apache.commons.lang3.builder.CompareToBuilder;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;

import io.netlibs.bgp.protocol.AddressFamily;
import io.netlibs.bgp.protocol.AddressFamilyKey;
import io.netlibs.bgp.protocol.BinaryNextHop;
import io.netlibs.bgp.protocol.NetworkLayerReachabilityInformation;
import io.netlibs.bgp.protocol.SubsequentAddressFamily;
import lombok.ToString;

/**
 * @author Rainer Bieniek (Rainer.Bieniek@web.de)
 *
 */

@ToString
public class MultiProtocolReachableNLRI extends PathAttribute {

    private AddressFamily addressFamily;
    private SubsequentAddressFamily subsequentAddressFamily;
    private BinaryNextHop nextHop;
    private List<NetworkLayerReachabilityInformation> nlris = new LinkedList<NetworkLayerReachabilityInformation>();

    /**
     * @param category
     */
    public MultiProtocolReachableNLRI() {
        super(Category.OPTIONAL_NON_TRANSITIVE);
    }

    /**
     * @param category
     */
    public MultiProtocolReachableNLRI(final AddressFamily addressFamily,
            final SubsequentAddressFamily subsequentAddressFamily) {
        this();

        this.addressFamily = addressFamily;
        this.subsequentAddressFamily = subsequentAddressFamily;
    }

    /**
     * @param category
     */
    public MultiProtocolReachableNLRI(final AddressFamily addressFamily,
            final SubsequentAddressFamily subsequentAddressFamily, final byte[] nextHopAddress) {
        this(addressFamily, subsequentAddressFamily);

        this.setNextHopAddress(nextHopAddress);
    }

    /**
     * @param category
     */
    public MultiProtocolReachableNLRI(final AddressFamily addressFamily,
            final SubsequentAddressFamily subsequentAddressFamily, final BinaryNextHop nextHop) {
        this(addressFamily, subsequentAddressFamily);

        this.nextHop = nextHop;
    }

    /**
     * @param category
     */
    public MultiProtocolReachableNLRI(final AddressFamily addressFamily,
            final SubsequentAddressFamily subsequentAddressFamily, final byte[] nextHopAddress,
            final NetworkLayerReachabilityInformation[] nlris) {
        this(addressFamily, subsequentAddressFamily, nextHopAddress);

        for (final NetworkLayerReachabilityInformation nlri : nlris) {
            this.nlris.add(nlri);
        }
    }

    /**
     * @param category
     */
    public MultiProtocolReachableNLRI(final AddressFamily addressFamily,
            final SubsequentAddressFamily subsequentAddressFamily, final BinaryNextHop nextHop,
            final NetworkLayerReachabilityInformation[] nlris) {
        this(addressFamily, subsequentAddressFamily, nextHop);

        for (final NetworkLayerReachabilityInformation nlri : nlris) {
            this.nlris.add(nlri);
        }
    }

    /**
     * @param category
     */
    public MultiProtocolReachableNLRI(final AddressFamily addressFamily,
            final SubsequentAddressFamily subsequentAddressFamily, final BinaryNextHop nextHop,
            final Collection<NetworkLayerReachabilityInformation> nlris) {
        this(addressFamily, subsequentAddressFamily, nextHop);

        if (nlris != null) {
            this.nlris.addAll(nlris);
        }
    }

    /**
     * @return the addressFamily
     */
    public AddressFamily getAddressFamily() {
        return this.addressFamily;
    }

    /**
     * @param addressFamily
     *          the addressFamily to set
     */
    public void setAddressFamily(final AddressFamily addressFamily) {
        this.addressFamily = addressFamily;
    }

    /**
     * @return the subsequentAddressFamily
     */
    public SubsequentAddressFamily getSubsequentAddressFamily() {
        return this.subsequentAddressFamily;
    }

    /**
     * @param subsequentAddressFamily
     *          the subsequentAddressFamily to set
     */
    public void setSubsequentAddressFamily(final SubsequentAddressFamily subsequentAddressFamily) {
        this.subsequentAddressFamily = subsequentAddressFamily;
    }

    /**
     * @return the nextHopAddress
     */

    public BinaryNextHop getNextHop() {
        return this.nextHop;
    }

    /**
     * @param nextHopAddress
     *          the nextHopAddress to set
     */
    public void setNextHopAddress(final byte[] nextHopAddress) {
        if (nextHopAddress != null) {
            this.nextHop = new BinaryNextHop(nextHopAddress);
        } else {
            this.nextHop = null;
        }
    }

    /**
     * @param nextHopAddress
     *          the nextHopAddress to set
     */
    public void setNextHop(final BinaryNextHop nextHop) {
        this.nextHop = nextHop;
    }

    /**
     * @return the nlris
     */
    public List<NetworkLayerReachabilityInformation> getNlris() {
        return this.nlris;
    }

    /**
     * @param nlris
     *          the nlris to set
     */
    public void setNlris(final List<NetworkLayerReachabilityInformation> nlris) {
        this.nlris = nlris;
    }

    public AddressFamilyKey addressFamilyKey() {
        return new AddressFamilyKey(this.getAddressFamily(), this.getSubsequentAddressFamily());
    }

    @Override
    protected PathAttributeType internalType() {
        return PathAttributeType.MULTI_PROTOCOL_REACHABLE;
    }

    @Override
    protected boolean subclassEquals(final PathAttribute obj) {
        final MultiProtocolReachableNLRI o = (MultiProtocolReachableNLRI) obj;

        final EqualsBuilder builer = (new EqualsBuilder()).append(this.getAddressFamily(), o.getAddressFamily())
                .append(this.getSubsequentAddressFamily(), o.getSubsequentAddressFamily())
                .append(this.getNextHop(), o.getNextHop()).append(this.getNlris().size(), o.getNlris().size());

        if (builer.isEquals()) {
            final Iterator<NetworkLayerReachabilityInformation> lit = this.getNlris().iterator();
            final Iterator<NetworkLayerReachabilityInformation> rit = o.getNlris().iterator();

            while (lit.hasNext()) {
                builer.append(lit.next(), rit.next());
            }
        }

        return builer.isEquals();
    }

    @Override
    protected int subclassHashCode() {
        final HashCodeBuilder builder = (new HashCodeBuilder()).append(this.getAddressFamily())
                .append(this.getSubsequentAddressFamily()).append(this.getNextHop());
        final Iterator<NetworkLayerReachabilityInformation> it = this.getNlris().iterator();

        while (it.hasNext()) {
            builder.append(it.next());
        }

        return builder.toHashCode();
    }

    @Override
    protected int subclassCompareTo(final PathAttribute obj) {
        final MultiProtocolReachableNLRI o = (MultiProtocolReachableNLRI) obj;

        final CompareToBuilder builer = (new CompareToBuilder())
                .append(this.getAddressFamily(), o.getAddressFamily())
                .append(this.getSubsequentAddressFamily(), o.getSubsequentAddressFamily())
                .append(this.getNextHop(), o.getNextHop()).append(this.getNlris().size(), o.getNlris().size());

        if (builer.toComparison() == 0) {
            final Iterator<NetworkLayerReachabilityInformation> lit = this.getNlris().iterator();
            final Iterator<NetworkLayerReachabilityInformation> rit = o.getNlris().iterator();

            while (lit.hasNext()) {
                builer.append(lit.next(), rit.next());
            }
        }

        return builer.toComparison();
    }

    @Override
    protected ToStringBuilder subclassToString() {
        final ToStringBuilder builder = new ToStringBuilder(this).append(this.addressFamily)
                .append(this.subsequentAddressFamily).append(this.nextHop);

        for (final NetworkLayerReachabilityInformation n : this.nlris) {
            builder.append("nlri", n);
        }

        return builder;
    }

    @Override
    public <R> R apply(PathAttributeVisitor<R> visitor) {
        return visitor.visitMultiProtocolReachableNLRI(this);
    }

}