<?php
/**
* Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the MIT License.  See License in the project root for license information.
* 
* HostPair File
* PHP version 7
*
* @category  Library
* @package   Microsoft.Graph
* @copyright (c) Microsoft Corporation. All rights reserved.
* @license   https://opensource.org/licenses/MIT MIT License
* @link      https://graph.microsoft.com
*/
namespace Microsoft\Graph\SecurityNamespace\Model;

/**
* HostPair class
*
* @category  Model
* @package   Microsoft.Graph
* @copyright (c) Microsoft Corporation. All rights reserved.
* @license   https://opensource.org/licenses/MIT MIT License
* @link      https://graph.microsoft.com
*/
class HostPair extends \Microsoft\Graph\Model\Entity
{
    /**
    * Gets the firstSeenDateTime
    * The date and time when Microsoft Defender Threat Intelligence first observed the hostPair. The timestamp type represents date and time information using ISO 8601 format and is always in UTC. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z.
    *
    * @return \DateTime|null The firstSeenDateTime
    */
    public function getFirstSeenDateTime()
    {
        if (array_key_exists("firstSeenDateTime", $this->_propDict)) {
            if (is_a($this->_propDict["firstSeenDateTime"], "\DateTime") || is_null($this->_propDict["firstSeenDateTime"])) {
                return $this->_propDict["firstSeenDateTime"];
            } else {
                $this->_propDict["firstSeenDateTime"] = new \DateTime($this->_propDict["firstSeenDateTime"]);
                return $this->_propDict["firstSeenDateTime"];
            }
        }
        return null;
    }

    /**
    * Sets the firstSeenDateTime
    * The date and time when Microsoft Defender Threat Intelligence first observed the hostPair. The timestamp type represents date and time information using ISO 8601 format and is always in UTC. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z.
    *
    * @param \DateTime $val The firstSeenDateTime
    *
    * @return HostPair
    */
    public function setFirstSeenDateTime($val)
    {
        $this->_propDict["firstSeenDateTime"] = $val;
        return $this;
    }

    /**
    * Gets the lastSeenDateTime
    * The date and time when Microsoft Defender Threat Intelligence last observed the hostPair. The timestamp type represents date and time information using ISO 8601 format and is always in UTC. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z.
    *
    * @return \DateTime|null The lastSeenDateTime
    */
    public function getLastSeenDateTime()
    {
        if (array_key_exists("lastSeenDateTime", $this->_propDict)) {
            if (is_a($this->_propDict["lastSeenDateTime"], "\DateTime") || is_null($this->_propDict["lastSeenDateTime"])) {
                return $this->_propDict["lastSeenDateTime"];
            } else {
                $this->_propDict["lastSeenDateTime"] = new \DateTime($this->_propDict["lastSeenDateTime"]);
                return $this->_propDict["lastSeenDateTime"];
            }
        }
        return null;
    }

    /**
    * Sets the lastSeenDateTime
    * The date and time when Microsoft Defender Threat Intelligence last observed the hostPair. The timestamp type represents date and time information using ISO 8601 format and is always in UTC. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z.
    *
    * @param \DateTime $val The lastSeenDateTime
    *
    * @return HostPair
    */
    public function setLastSeenDateTime($val)
    {
        $this->_propDict["lastSeenDateTime"] = $val;
        return $this;
    }

    /**
    * Gets the linkKind
    * The reason that two hosts are identified as hostPair.
    *
    * @return string|null The linkKind
    */
    public function getLinkKind()
    {
        if (array_key_exists("linkKind", $this->_propDict)) {
            return $this->_propDict["linkKind"];
        } else {
            return null;
        }
    }

    /**
    * Sets the linkKind
    * The reason that two hosts are identified as hostPair.
    *
    * @param string $val The linkKind
    *
    * @return HostPair
    */
    public function setLinkKind($val)
    {
        $this->_propDict["linkKind"] = $val;
        return $this;
    }

    /**
    * Gets the childHost
    * Host reached via the parentHost.
    *
    * @return Host|null The childHost
    */
    public function getChildHost()
    {
        if (array_key_exists("childHost", $this->_propDict)) {
            if (is_a($this->_propDict["childHost"], "\Microsoft\Graph\SecurityNamespace\Model\Host") || is_null($this->_propDict["childHost"])) {
                return $this->_propDict["childHost"];
            } else {
                $this->_propDict["childHost"] = new Host($this->_propDict["childHost"]);
                return $this->_propDict["childHost"];
            }
        }
        return null;
    }

    /**
    * Sets the childHost
    * Host reached via the parentHost.
    *
    * @param Host $val The childHost
    *
    * @return HostPair
    */
    public function setChildHost($val)
    {
        $this->_propDict["childHost"] = $val;
        return $this;
    }

    /**
    * Gets the parentHost
    * Host used to reach the childHost.
    *
    * @return Host|null The parentHost
    */
    public function getParentHost()
    {
        if (array_key_exists("parentHost", $this->_propDict)) {
            if (is_a($this->_propDict["parentHost"], "\Microsoft\Graph\SecurityNamespace\Model\Host") || is_null($this->_propDict["parentHost"])) {
                return $this->_propDict["parentHost"];
            } else {
                $this->_propDict["parentHost"] = new Host($this->_propDict["parentHost"]);
                return $this->_propDict["parentHost"];
            }
        }
        return null;
    }

    /**
    * Sets the parentHost
    * Host used to reach the childHost.
    *
    * @param Host $val The parentHost
    *
    * @return HostPair
    */
    public function setParentHost($val)
    {
        $this->_propDict["parentHost"] = $val;
        return $this;
    }

}