com.brighttag.agathon.model.CassandraInstance.java Source code

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Here is the source code for com.brighttag.agathon.model.CassandraInstance.java

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/*
 * Copyright 2014 BrightTag, Inc.
 *
 *    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 com.brighttag.agathon.model;

import java.util.Arrays;

import javax.annotation.Nullable;
import javax.validation.constraints.Min;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Objects;

import org.hibernate.validator.constraints.NotEmpty;

/**
 * An immutable Cassandra instance.
 *
 * @author codyaray
 * @since 5/12/12
 */
public class CassandraInstance {

    private final int id;
    private final String datacenter;
    private final String rack;
    private final String hostname;
    private final String publicIpAddress;
    private final @Nullable String fullyQualifiedDomainName;

    private CassandraInstance(@JsonProperty("id") int id, @JsonProperty("datacenter") String dataCenter,
            @JsonProperty("rack") String rack, @JsonProperty("hostname") String hostName,
            @JsonProperty("publicIpAddress") String publicIpAddress,
            @JsonProperty("fullyQualifiedDomainName") String fullyQualifiedDomainName) {
        this(new Builder().id(id).dataCenter(dataCenter).rack(rack).hostName(hostName)
                .publicIpAddress(publicIpAddress).fullyQualifiedDomainName(fullyQualifiedDomainName));
    }

    private CassandraInstance(Builder builder) {
        this.id = builder.id;
        this.datacenter = builder.datacenter;
        this.rack = builder.rack;
        this.hostname = builder.hostname;
        this.publicIpAddress = builder.publicIpAddress;
        this.fullyQualifiedDomainName = builder.fullyQualifiedDomainName;
    }

    public @Min(1) int getId() {
        return id;
    }

    public @NotEmpty String getDataCenter() {
        return datacenter;
    }

    public @NotEmpty String getRack() {
        return rack;
    }

    public @NotEmpty String getHostName() {
        return hostname;
    }

    public @NotEmpty String getPublicIpAddress() {
        return publicIpAddress;
    }

    public @Nullable String getFullyQualifiedDomainName() {
        return fullyQualifiedDomainName;
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(significantAttributes());
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        } else if (obj == this) {
            return true;
        } else if (!getClass().isAssignableFrom(obj.getClass())) {
            return false;
        }
        return Arrays.equals(significantAttributes(), getClass().cast(obj).significantAttributes());
    }

    @Override
    public String toString() {
        return Objects.toStringHelper(this).add("id", id).add("datacenter", datacenter).add("rack", rack)
                .add("hostname", hostname).add("publicIpAddress", publicIpAddress)
                .add("fullyQualifiedDomainName", fullyQualifiedDomainName).toString();
    }

    Object[] significantAttributes() {
        return new Object[] { id, datacenter, rack, hostname, publicIpAddress, fullyQualifiedDomainName };
    }

    /**
     * Fluent builder for {@link CassandraInstance}s.
     *
     * @author codyaray
     * @since 5/12/12
     */
    public static class Builder {

        private int id;
        private String datacenter;
        private String rack;
        private String hostname;
        private String publicIpAddress;
        private @Nullable String fullyQualifiedDomainName;

        public Builder id(int id) {
            this.id = id;
            return this;
        }

        public Builder dataCenter(String dataCenter) {
            this.datacenter = dataCenter;
            return this;
        }

        public Builder rack(String rack) {
            this.rack = rack;
            return this;
        }

        public Builder hostName(String hostName) {
            this.hostname = hostName;
            return this;
        }

        public Builder publicIpAddress(String publicIpAddress) {
            this.publicIpAddress = publicIpAddress;
            return this;
        }

        public Builder fullyQualifiedDomainName(@Nullable String fullyQualifiedDomainName) {
            this.fullyQualifiedDomainName = fullyQualifiedDomainName;
            return this;
        }

        public CassandraInstance build() {
            return new CassandraInstance(this);
        }

    }

}