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The AWS Java SDK for Amazon EMR module holds the client classes that are used for communicating with Amazon Elastic MapReduce Service
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/*
 * Copyright 2011-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not
 * use this file except in compliance with the License. A copy of the License is
 * located at
 * 
 * http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file 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.amazonaws.services.elasticmapreduce.model;

import java.io.Serializable;

/**
 * 
 * The detailed status of the cluster.
 * 
 */
public class ClusterStatus implements Serializable, Cloneable {

    /**
     * 
     * The current state of the cluster.
     * 
     */
    private String state;
    /**
     * 
     * The reason for the cluster status change.
     * 
     */
    private ClusterStateChangeReason stateChangeReason;
    /**
     * 
     * A timeline that represents the status of a cluster over the lifetime of
     * the cluster.
     * 
     */
    private ClusterTimeline timeline;

    /**
     * 
     * The current state of the cluster.
     * 
     * 
     * @param state
     *        The current state of the cluster.
     * @see ClusterState
     */

    public void setState(String state) {
        this.state = state;
    }

    /**
     * 
     * The current state of the cluster.
     * 
     * 
     * @return The current state of the cluster.
     * @see ClusterState
     */

    public String getState() {
        return this.state;
    }

    /**
     * 
     * The current state of the cluster.
     * 
     * 
     * @param state
     *        The current state of the cluster.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     * @see ClusterState
     */

    public ClusterStatus withState(String state) {
        setState(state);
        return this;
    }

    /**
     * 
     * The current state of the cluster.
     * 
     * 
     * @param state
     *        The current state of the cluster.
     * @see ClusterState
     */

    public void setState(ClusterState state) {
        this.state = state.toString();
    }

    /**
     * 
     * The current state of the cluster.
     * 
     * 
     * @param state
     *        The current state of the cluster.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     * @see ClusterState
     */

    public ClusterStatus withState(ClusterState state) {
        setState(state);
        return this;
    }

    /**
     * 
     * The reason for the cluster status change.
     * 
     * 
     * @param stateChangeReason
     *        The reason for the cluster status change.
     */

    public void setStateChangeReason(ClusterStateChangeReason stateChangeReason) {
        this.stateChangeReason = stateChangeReason;
    }

    /**
     * 
     * The reason for the cluster status change.
     * 
     * 
     * @return The reason for the cluster status change.
     */

    public ClusterStateChangeReason getStateChangeReason() {
        return this.stateChangeReason;
    }

    /**
     * 
     * The reason for the cluster status change.
     * 
     * 
     * @param stateChangeReason
     *        The reason for the cluster status change.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     */

    public ClusterStatus withStateChangeReason(
            ClusterStateChangeReason stateChangeReason) {
        setStateChangeReason(stateChangeReason);
        return this;
    }

    /**
     * 
     * A timeline that represents the status of a cluster over the lifetime of
     * the cluster.
     * 
     * 
     * @param timeline
     *        A timeline that represents the status of a cluster over the
     *        lifetime of the cluster.
     */

    public void setTimeline(ClusterTimeline timeline) {
        this.timeline = timeline;
    }

    /**
     * 
     * A timeline that represents the status of a cluster over the lifetime of
     * the cluster.
     * 
     * 
     * @return A timeline that represents the status of a cluster over the
     *         lifetime of the cluster.
     */

    public ClusterTimeline getTimeline() {
        return this.timeline;
    }

    /**
     * 
     * A timeline that represents the status of a cluster over the lifetime of
     * the cluster.
     * 
     * 
     * @param timeline
     *        A timeline that represents the status of a cluster over the
     *        lifetime of the cluster.
     * @return Returns a reference to this object so that method calls can be
     *         chained together.
     */

    public ClusterStatus withTimeline(ClusterTimeline timeline) {
        setTimeline(timeline);
        return this;
    }

    /**
     * Returns a string representation of this object; useful for testing and
     * debugging.
     *
     * @return A string representation of this object.
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getState() != null)
            sb.append("State: " + getState() + ",");
        if (getStateChangeReason() != null)
            sb.append("StateChangeReason: " + getStateChangeReason() + ",");
        if (getTimeline() != null)
            sb.append("Timeline: " + getTimeline());
        sb.append("}");
        return sb.toString();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;

        if (obj instanceof ClusterStatus == false)
            return false;
        ClusterStatus other = (ClusterStatus) obj;
        if (other.getState() == null ^ this.getState() == null)
            return false;
        if (other.getState() != null
                && other.getState().equals(this.getState()) == false)
            return false;
        if (other.getStateChangeReason() == null
                ^ this.getStateChangeReason() == null)
            return false;
        if (other.getStateChangeReason() != null
                && other.getStateChangeReason().equals(
                        this.getStateChangeReason()) == false)
            return false;
        if (other.getTimeline() == null ^ this.getTimeline() == null)
            return false;
        if (other.getTimeline() != null
                && other.getTimeline().equals(this.getTimeline()) == false)
            return false;
        return true;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;

        hashCode = prime * hashCode
                + ((getState() == null) ? 0 : getState().hashCode());
        hashCode = prime
                * hashCode
                + ((getStateChangeReason() == null) ? 0
                        : getStateChangeReason().hashCode());
        hashCode = prime * hashCode
                + ((getTimeline() == null) ? 0 : getTimeline().hashCode());
        return hashCode;
    }

    @Override
    public ClusterStatus clone() {
        try {
            return (ClusterStatus) super.clone();
        } catch (CloneNotSupportedException e) {
            throw new IllegalStateException(
                    "Got a CloneNotSupportedException from Object.clone() "
                            + "even though we're Cloneable!", e);
        }
    }
}