org.jclouds.gogrid.domain.IpPortPair.java Source code

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Here is the source code for org.jclouds.gogrid.domain.IpPortPair.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.jclouds.gogrid.domain;

import static com.google.common.base.Preconditions.checkNotNull;

import java.beans.ConstructorProperties;

import com.google.common.base.Objects;
import com.google.common.base.Objects.ToStringHelper;
import com.google.common.primitives.Ints;
import com.google.common.primitives.Longs;

/**
 * Class IpPortPair
 * 
 * @author Oleksiy Yarmula
*/
public class IpPortPair implements Comparable<IpPortPair> {

    public static Builder<?> builder() {
        return new ConcreteBuilder();
    }

    public Builder<?> toBuilder() {
        return new ConcreteBuilder().fromIpPortPair(this);
    }

    public abstract static class Builder<T extends Builder<T>> {
        protected abstract T self();

        protected Ip ip;
        protected int port;

        /** 
         * @see IpPortPair#getIp()
         */
        public T ip(Ip ip) {
            this.ip = ip;
            return self();
        }

        /** 
         * @see IpPortPair#getPort()
         */
        public T port(int port) {
            this.port = port;
            return self();
        }

        public IpPortPair build() {
            return new IpPortPair(ip, port);
        }

        public T fromIpPortPair(IpPortPair in) {
            return this.ip(in.getIp()).port(in.getPort());
        }
    }

    private static class ConcreteBuilder extends Builder<ConcreteBuilder> {
        @Override
        protected ConcreteBuilder self() {
            return this;
        }
    }

    private final Ip ip;
    private final int port;

    @ConstructorProperties({ "ip", "port" })
    protected IpPortPair(Ip ip, int port) {
        this.ip = checkNotNull(ip, "ip");
        this.port = port;
    }

    public Ip getIp() {
        return this.ip;
    }

    public int getPort() {
        return this.port;
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(ip, port);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null || getClass() != obj.getClass())
            return false;
        IpPortPair that = IpPortPair.class.cast(obj);
        return Objects.equal(this.ip, that.ip) && Objects.equal(this.port, that.port);
    }

    protected ToStringHelper string() {
        return Objects.toStringHelper(this).add("ip", ip).add("port", port);
    }

    @Override
    public String toString() {
        return string().toString();
    }

    @Override
    public int compareTo(IpPortPair o) {
        if (ip != null && o.getIp() != null)
            return Longs.compare(ip.getId(), o.getIp().getId());
        return Ints.compare(port, o.getPort());
    }
}