<?php
# Generated by the protocol buffer compiler.  DO NOT EDIT!
# source: google/api/monitored_resource.proto

namespace Google\Api;

use Google\Protobuf\Internal\GPBType;
use Google\Protobuf\Internal\RepeatedField;
use Google\Protobuf\Internal\GPBUtil;

/**
 * Auxiliary metadata for a [MonitoredResource][google.api.MonitoredResource] object.
 * [MonitoredResource][google.api.MonitoredResource] objects contain the minimum set of information to
 * uniquely identify a monitored resource instance. There is some other useful
 * auxiliary metadata. Google Stackdriver Monitoring & Logging uses an ingestion
 * pipeline to extract metadata for cloud resources of all types , and stores
 * the metadata in this message.
 *
 * Generated from protobuf message <code>google.api.MonitoredResourceMetadata</code>
 */
class MonitoredResourceMetadata extends \Google\Protobuf\Internal\Message
{
    /**
     * Output only. Values for predefined system metadata labels.
     * System labels are a kind of metadata extracted by Google Stackdriver.
     * Stackdriver determines what system labels are useful and how to obtain
     * their values. Some examples: "machine_image", "vpc", "subnet_id",
     * "security_group", "name", etc.
     * System label values can be only strings, Boolean values, or a list of
     * strings. For example:
     *     { "name": "my-test-instance",
     *       "security_group": ["a", "b", "c"],
     *       "spot_instance": false }
     *
     * Generated from protobuf field <code>.google.protobuf.Struct system_labels = 1;</code>
     */
    private $system_labels = null;
    /**
     * Output only. A map of user-defined metadata labels.
     *
     * Generated from protobuf field <code>map<string, string> user_labels = 2;</code>
     */
    private $user_labels;

    /**
     * Constructor.
     *
     * @param array $data {
     *     Optional. Data for populating the Message object.
     *
     *     @type \Google\Protobuf\Struct $system_labels
     *           Output only. Values for predefined system metadata labels.
     *           System labels are a kind of metadata extracted by Google Stackdriver.
     *           Stackdriver determines what system labels are useful and how to obtain
     *           their values. Some examples: "machine_image", "vpc", "subnet_id",
     *           "security_group", "name", etc.
     *           System label values can be only strings, Boolean values, or a list of
     *           strings. For example:
     *               { "name": "my-test-instance",
     *                 "security_group": ["a", "b", "c"],
     *                 "spot_instance": false }
     *     @type array|\Google\Protobuf\Internal\MapField $user_labels
     *           Output only. A map of user-defined metadata labels.
     * }
     */
    public function __construct($data = NULL) {
        \GPBMetadata\Google\Api\MonitoredResource::initOnce();
        parent::__construct($data);
    }

    /**
     * Output only. Values for predefined system metadata labels.
     * System labels are a kind of metadata extracted by Google Stackdriver.
     * Stackdriver determines what system labels are useful and how to obtain
     * their values. Some examples: "machine_image", "vpc", "subnet_id",
     * "security_group", "name", etc.
     * System label values can be only strings, Boolean values, or a list of
     * strings. For example:
     *     { "name": "my-test-instance",
     *       "security_group": ["a", "b", "c"],
     *       "spot_instance": false }
     *
     * Generated from protobuf field <code>.google.protobuf.Struct system_labels = 1;</code>
     * @return \Google\Protobuf\Struct
     */
    public function getSystemLabels()
    {
        return $this->system_labels;
    }

    /**
     * Output only. Values for predefined system metadata labels.
     * System labels are a kind of metadata extracted by Google Stackdriver.
     * Stackdriver determines what system labels are useful and how to obtain
     * their values. Some examples: "machine_image", "vpc", "subnet_id",
     * "security_group", "name", etc.
     * System label values can be only strings, Boolean values, or a list of
     * strings. For example:
     *     { "name": "my-test-instance",
     *       "security_group": ["a", "b", "c"],
     *       "spot_instance": false }
     *
     * Generated from protobuf field <code>.google.protobuf.Struct system_labels = 1;</code>
     * @param \Google\Protobuf\Struct $var
     * @return $this
     */
    public function setSystemLabels($var)
    {
        GPBUtil::checkMessage($var, \Google\Protobuf\Struct::class);
        $this->system_labels = $var;

        return $this;
    }

    /**
     * Output only. A map of user-defined metadata labels.
     *
     * Generated from protobuf field <code>map<string, string> user_labels = 2;</code>
     * @return \Google\Protobuf\Internal\MapField
     */
    public function getUserLabels()
    {
        return $this->user_labels;
    }

    /**
     * Output only. A map of user-defined metadata labels.
     *
     * Generated from protobuf field <code>map<string, string> user_labels = 2;</code>
     * @param array|\Google\Protobuf\Internal\MapField $var
     * @return $this
     */
    public function setUserLabels($var)
    {
        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
        $this->user_labels = $arr;

        return $this;
    }

}