org.jclouds.ec2.domain.AvailabilityZoneInfo.java Source code

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Here is the source code for org.jclouds.ec2.domain.AvailabilityZoneInfo.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.ec2.domain;

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

import java.util.Set;

import com.google.common.collect.Iterables;
import com.google.common.collect.Sets;

/**
 * 
 * @see <a href="http://docs.amazonwebservices.com/AWSEC2/latest/APIReference/ApiReference-ItemType-AvailabilityZoneItemType.html"
 *      />
 * @author Adrian Cole
 */
public class AvailabilityZoneInfo implements Comparable<AvailabilityZoneInfo> {

    private final String zone;
    private final String state;
    private final String region;
    private final Set<String> messages = Sets.newHashSet();

    public AvailabilityZoneInfo(String zone, String zoneState, String region, Iterable<String> messages) {
        this.zone = checkNotNull(zone, "zone");
        this.state = checkNotNull(zoneState, "zoneState");
        this.region = checkNotNull(region, "region");
        Iterables.addAll(this.messages, checkNotNull(messages, "messages"));
    }

    /**
     * the Availability Zone.
     */
    public String getZone() {
        return zone;
    }

    /**
     * State of the Availability Zone.
     */
    public String getState() {
        return state;
    }

    /**
     * Name of the Region.
     */
    public String getRegion() {
        return region;
    }

    /**
     * Messages
     */
    public Set<String> getMessages() {
        return messages;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((messages == null) ? 0 : messages.hashCode());
        result = prime * result + ((region == null) ? 0 : region.hashCode());
        result = prime * result + ((state == null) ? 0 : state.hashCode());
        result = prime * result + ((zone == null) ? 0 : zone.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        AvailabilityZoneInfo other = (AvailabilityZoneInfo) obj;
        if (messages == null) {
            if (other.messages != null)
                return false;
        } else if (!messages.equals(other.messages))
            return false;
        if (region == null) {
            if (other.region != null)
                return false;
        } else if (!region.equals(other.region))
            return false;
        if (state == null) {
            if (other.state != null)
                return false;
        } else if (!state.equals(other.state))
            return false;
        if (zone == null) {
            if (other.zone != null)
                return false;
        } else if (!zone.equals(other.zone))
            return false;
        return true;
    }

    @Override
    public String toString() {
        return "AvailabilityZoneInfo [messages=" + messages + ", region=" + region + ", state=" + state + ", zone="
                + zone + "]";
    }

    @Override
    public int compareTo(AvailabilityZoneInfo that) {
        return zone.compareTo(that.zone);
    }

}