@Generated(value="com.amazonaws:aws-java-sdk-code-generator") public class AbstractAmazonCloudWatch extends Object implements AmazonCloudWatch
AmazonCloudWatch
. Convenient method forms pass through to the corresponding
overload that takes a request object, which throws an UnsupportedOperationException
.ENDPOINT_PREFIX
Modifier | Constructor and Description |
---|---|
protected |
AbstractAmazonCloudWatch() |
Modifier and Type | Method and Description |
---|---|
DeleteAlarmsResult |
deleteAlarms(DeleteAlarmsRequest request)
Deletes the specified alarms.
|
DeleteDashboardsResult |
deleteDashboards(DeleteDashboardsRequest request)
Deletes all dashboards that you specify.
|
DescribeAlarmHistoryResult |
describeAlarmHistory()
Simplified method form for invoking the DescribeAlarmHistory operation.
|
DescribeAlarmHistoryResult |
describeAlarmHistory(DescribeAlarmHistoryRequest request)
Retrieves the history for the specified alarm.
|
DescribeAlarmsResult |
describeAlarms()
Simplified method form for invoking the DescribeAlarms operation.
|
DescribeAlarmsResult |
describeAlarms(DescribeAlarmsRequest request)
Retrieves the specified alarms.
|
DescribeAlarmsForMetricResult |
describeAlarmsForMetric(DescribeAlarmsForMetricRequest request)
Retrieves the alarms for the specified metric.
|
DisableAlarmActionsResult |
disableAlarmActions(DisableAlarmActionsRequest request)
Disables the actions for the specified alarms.
|
EnableAlarmActionsResult |
enableAlarmActions(EnableAlarmActionsRequest request)
Enables the actions for the specified alarms.
|
ResponseMetadata |
getCachedResponseMetadata(AmazonWebServiceRequest request)
Returns additional metadata for a previously executed successful request, typically used for debugging issues
where a service isn't acting as expected.
|
GetDashboardResult |
getDashboard(GetDashboardRequest request)
Displays the details of the dashboard that you specify.
|
GetMetricDataResult |
getMetricData(GetMetricDataRequest request)
You can use the
GetMetricData API to retrieve as many as 100 different metrics in a single request,
with a total of as many as 100,800 datapoints. |
GetMetricStatisticsResult |
getMetricStatistics(GetMetricStatisticsRequest request)
Gets statistics for the specified metric.
|
GetMetricWidgetImageResult |
getMetricWidgetImage(GetMetricWidgetImageRequest request)
You can use the
GetMetricWidgetImage API to retrieve a snapshot graph of one or more Amazon
CloudWatch metrics as a bitmap image. |
ListDashboardsResult |
listDashboards(ListDashboardsRequest request)
Returns a list of the dashboards for your account.
|
ListMetricsResult |
listMetrics()
Simplified method form for invoking the ListMetrics operation.
|
ListMetricsResult |
listMetrics(ListMetricsRequest request)
List the specified metrics.
|
PutDashboardResult |
putDashboard(PutDashboardRequest request)
Creates a dashboard if it does not already exist, or updates an existing dashboard.
|
PutMetricAlarmResult |
putMetricAlarm(PutMetricAlarmRequest request)
Creates or updates an alarm and associates it with the specified metric or metric math expression.
|
PutMetricDataResult |
putMetricData(PutMetricDataRequest request)
Publishes metric data points to Amazon CloudWatch.
|
SetAlarmStateResult |
setAlarmState(SetAlarmStateRequest request)
Temporarily sets the state of an alarm for testing purposes.
|
void |
setEndpoint(String endpoint)
Overrides the default endpoint for this client ("https://monitoring.us-east-1.amazonaws.com").
|
void |
setRegion(Region region)
An alternative to
AmazonCloudWatch.setEndpoint(String) , sets the regional endpoint for this client's
service calls. |
void |
shutdown()
Shuts down this client object, releasing any resources that might be held open.
|
AmazonCloudWatchWaiters |
waiters() |
public void setEndpoint(String endpoint)
AmazonCloudWatch
Callers can pass in just the endpoint (ex: "monitoring.us-east-1.amazonaws.com") or a full URL, including the
protocol (ex: "https://monitoring.us-east-1.amazonaws.com"). If the protocol is not specified here, the default
protocol from this client's ClientConfiguration
will be used, which by default is HTTPS.
For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available endpoints for all AWS services, see: https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/java-dg-region-selection.html#region-selection- choose-endpoint
This method is not threadsafe. An endpoint should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setEndpoint
in interface AmazonCloudWatch
endpoint
- The endpoint (ex: "monitoring.us-east-1.amazonaws.com") or a full URL, including the protocol (ex:
"https://monitoring.us-east-1.amazonaws.com") of the region specific AWS endpoint this client will
communicate with.public void setRegion(Region region)
AmazonCloudWatch
AmazonCloudWatch.setEndpoint(String)
, sets the regional endpoint for this client's
service calls. Callers can use this method to control which AWS region they want to work with.
By default, all service endpoints in all regions use the https protocol. To use http instead, specify it in the
ClientConfiguration
supplied at construction.
This method is not threadsafe. A region should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setRegion
in interface AmazonCloudWatch
region
- The region this client will communicate with. See Region.getRegion(com.amazonaws.regions.Regions)
for accessing a given region. Must not be null and must be a region where the service is available.Region.getRegion(com.amazonaws.regions.Regions)
,
Region.createClient(Class, com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration)
,
Region.isServiceSupported(String)
public DeleteAlarmsResult deleteAlarms(DeleteAlarmsRequest request)
AmazonCloudWatch
Deletes the specified alarms. In the event of an error, no alarms are deleted.
deleteAlarms
in interface AmazonCloudWatch
public DeleteDashboardsResult deleteDashboards(DeleteDashboardsRequest request)
AmazonCloudWatch
Deletes all dashboards that you specify. You may specify up to 100 dashboards to delete. If there is an error during this call, no dashboards are deleted.
deleteDashboards
in interface AmazonCloudWatch
public DescribeAlarmHistoryResult describeAlarmHistory(DescribeAlarmHistoryRequest request)
AmazonCloudWatch
Retrieves the history for the specified alarm. You can filter the results by date range or item type. If an alarm name is not specified, the histories for all alarms are returned.
CloudWatch retains the history of an alarm even if you delete the alarm.
describeAlarmHistory
in interface AmazonCloudWatch
public DescribeAlarmHistoryResult describeAlarmHistory()
AmazonCloudWatch
describeAlarmHistory
in interface AmazonCloudWatch
AmazonCloudWatch.describeAlarmHistory(DescribeAlarmHistoryRequest)
public DescribeAlarmsResult describeAlarms(DescribeAlarmsRequest request)
AmazonCloudWatch
Retrieves the specified alarms. If no alarms are specified, all alarms are returned. Alarms can be retrieved by using only a prefix for the alarm name, the alarm state, or a prefix for any action.
describeAlarms
in interface AmazonCloudWatch
public DescribeAlarmsResult describeAlarms()
AmazonCloudWatch
describeAlarms
in interface AmazonCloudWatch
AmazonCloudWatch.describeAlarms(DescribeAlarmsRequest)
public DescribeAlarmsForMetricResult describeAlarmsForMetric(DescribeAlarmsForMetricRequest request)
AmazonCloudWatch
Retrieves the alarms for the specified metric. To filter the results, specify a statistic, period, or unit.
describeAlarmsForMetric
in interface AmazonCloudWatch
public DisableAlarmActionsResult disableAlarmActions(DisableAlarmActionsRequest request)
AmazonCloudWatch
Disables the actions for the specified alarms. When an alarm's actions are disabled, the alarm actions do not execute when the alarm state changes.
disableAlarmActions
in interface AmazonCloudWatch
public EnableAlarmActionsResult enableAlarmActions(EnableAlarmActionsRequest request)
AmazonCloudWatch
Enables the actions for the specified alarms.
enableAlarmActions
in interface AmazonCloudWatch
public GetDashboardResult getDashboard(GetDashboardRequest request)
AmazonCloudWatch
Displays the details of the dashboard that you specify.
To copy an existing dashboard, use GetDashboard
, and then use the data returned within
DashboardBody
as the template for the new dashboard when you call PutDashboard
to
create the copy.
getDashboard
in interface AmazonCloudWatch
public GetMetricDataResult getMetricData(GetMetricDataRequest request)
AmazonCloudWatch
You can use the GetMetricData
API to retrieve as many as 100 different metrics in a single request,
with a total of as many as 100,800 datapoints. You can also optionally perform math expressions on the values of
the returned statistics, to create new time series that represent new insights into your data. For example, using
Lambda metrics, you could divide the Errors metric by the Invocations metric to get an error rate time series.
For more information about metric math expressions, see Metric Math Syntax and Functions in the Amazon CloudWatch User Guide.
Calls to the GetMetricData
API have a different pricing structure than calls to
GetMetricStatistics
. For more information about pricing, see Amazon CloudWatch Pricing.
Amazon CloudWatch retains metric data as follows:
Data points with a period of less than 60 seconds are available for 3 hours. These data points are
high-resolution metrics and are available only for custom metrics that have been defined with a
StorageResolution
of 1.
Data points with a period of 60 seconds (1-minute) are available for 15 days.
Data points with a period of 300 seconds (5-minute) are available for 63 days.
Data points with a period of 3600 seconds (1 hour) are available for 455 days (15 months).
Data points that are initially published with a shorter period are aggregated together for long-term storage. For example, if you collect data using a period of 1 minute, the data remains available for 15 days with 1-minute resolution. After 15 days, this data is still available, but is aggregated and retrievable only with a resolution of 5 minutes. After 63 days, the data is further aggregated and is available with a resolution of 1 hour.
getMetricData
in interface AmazonCloudWatch
public GetMetricStatisticsResult getMetricStatistics(GetMetricStatisticsRequest request)
AmazonCloudWatch
Gets statistics for the specified metric.
The maximum number of data points returned from a single call is 1,440. If you request more than 1,440 data points, CloudWatch returns an error. To reduce the number of data points, you can narrow the specified time range and make multiple requests across adjacent time ranges, or you can increase the specified period. Data points are not returned in chronological order.
CloudWatch aggregates data points based on the length of the period that you specify. For example, if you request statistics with a one-hour period, CloudWatch aggregates all data points with time stamps that fall within each one-hour period. Therefore, the number of values aggregated by CloudWatch is larger than the number of data points returned.
CloudWatch needs raw data points to calculate percentile statistics. If you publish data using a statistic set instead, you can only retrieve percentile statistics for this data if one of the following conditions is true:
The SampleCount value of the statistic set is 1.
The Min and the Max values of the statistic set are equal.
Percentile statistics are not available for metrics when any of the metric values are negative numbers.
Amazon CloudWatch retains metric data as follows:
Data points with a period of less than 60 seconds are available for 3 hours. These data points are
high-resolution metrics and are available only for custom metrics that have been defined with a
StorageResolution
of 1.
Data points with a period of 60 seconds (1-minute) are available for 15 days.
Data points with a period of 300 seconds (5-minute) are available for 63 days.
Data points with a period of 3600 seconds (1 hour) are available for 455 days (15 months).
Data points that are initially published with a shorter period are aggregated together for long-term storage. For example, if you collect data using a period of 1 minute, the data remains available for 15 days with 1-minute resolution. After 15 days, this data is still available, but is aggregated and retrievable only with a resolution of 5 minutes. After 63 days, the data is further aggregated and is available with a resolution of 1 hour.
CloudWatch started retaining 5-minute and 1-hour metric data as of July 9, 2016.
For information about metrics and dimensions supported by AWS services, see the Amazon CloudWatch Metrics and Dimensions Reference in the Amazon CloudWatch User Guide.
getMetricStatistics
in interface AmazonCloudWatch
public GetMetricWidgetImageResult getMetricWidgetImage(GetMetricWidgetImageRequest request)
AmazonCloudWatch
You can use the GetMetricWidgetImage
API to retrieve a snapshot graph of one or more Amazon
CloudWatch metrics as a bitmap image. You can then embed this image into your services and products, such as wiki
pages, reports, and documents. You could also retrieve images regularly, such as every minute, and create your
own custom live dashboard.
The graph you retrieve can include all CloudWatch metric graph features, including metric math and horizontal and vertical annotations.
There is a limit of 20 transactions per second for this API. Each GetMetricWidgetImage
action has
the following limits:
As many as 100 metrics in the graph.
Up to 100 KB uncompressed payload.
getMetricWidgetImage
in interface AmazonCloudWatch
public ListDashboardsResult listDashboards(ListDashboardsRequest request)
AmazonCloudWatch
Returns a list of the dashboards for your account. If you include DashboardNamePrefix
, only those
dashboards with names starting with the prefix are listed. Otherwise, all dashboards in your account are listed.
ListDashboards
returns up to 1000 results on one page. If there are more than 1000 dashboards, you
can call ListDashboards
again and include the value you received for NextToken
in the
first call, to receive the next 1000 results.
listDashboards
in interface AmazonCloudWatch
public ListMetricsResult listMetrics(ListMetricsRequest request)
AmazonCloudWatch
List the specified metrics. You can use the returned metrics with GetMetricData or GetMetricStatistics to obtain statistical data.
Up to 500 results are returned for any one call. To retrieve additional results, use the returned token with subsequent calls.
After you create a metric, allow up to fifteen minutes before the metric appears. Statistics about the metric, however, are available sooner using GetMetricData or GetMetricStatistics.
listMetrics
in interface AmazonCloudWatch
public ListMetricsResult listMetrics()
AmazonCloudWatch
listMetrics
in interface AmazonCloudWatch
AmazonCloudWatch.listMetrics(ListMetricsRequest)
public PutDashboardResult putDashboard(PutDashboardRequest request)
AmazonCloudWatch
Creates a dashboard if it does not already exist, or updates an existing dashboard. If you update a dashboard, the entire contents are replaced with what you specify here.
There is no limit to the number of dashboards in your account. All dashboards in your account are global, not region-specific.
A simple way to create a dashboard using PutDashboard
is to copy an existing dashboard. To copy an
existing dashboard using the console, you can load the dashboard and then use the View/edit source command in the
Actions menu to display the JSON block for that dashboard. Another way to copy a dashboard is to use
GetDashboard
, and then use the data returned within DashboardBody
as the template for
the new dashboard when you call PutDashboard
.
When you create a dashboard with PutDashboard
, a good practice is to add a text widget at the top of
the dashboard with a message that the dashboard was created by script and should not be changed in the console.
This message could also point console users to the location of the DashboardBody
script or the
CloudFormation template used to create the dashboard.
putDashboard
in interface AmazonCloudWatch
public PutMetricAlarmResult putMetricAlarm(PutMetricAlarmRequest request)
AmazonCloudWatch
Creates or updates an alarm and associates it with the specified metric or metric math expression.
When this operation creates an alarm, the alarm state is immediately set to INSUFFICIENT_DATA
. The
alarm is then evaluated and its state is set appropriately. Any actions associated with the new state are then
executed.
When you update an existing alarm, its state is left unchanged, but the update completely overwrites the previous configuration of the alarm.
If you are an IAM user, you must have Amazon EC2 permissions for some alarm operations:
iam:CreateServiceLinkedRole
for all alarms with EC2 actions
ec2:DescribeInstanceStatus
and ec2:DescribeInstances
for all alarms on EC2 instance
status metrics
ec2:StopInstances
for alarms with stop actions
ec2:TerminateInstances
for alarms with terminate actions
ec2:DescribeInstanceRecoveryAttribute
and ec2:RecoverInstances
for alarms with recover
actions
If you have read/write permissions for Amazon CloudWatch but not for Amazon EC2, you can still create an alarm, but the stop or terminate actions are not performed. However, if you are later granted the required permissions, the alarm actions that you created earlier are performed.
If you are using an IAM role (for example, an EC2 instance profile), you cannot stop or terminate the instance using alarm actions. However, you can still see the alarm state and perform any other actions such as Amazon SNS notifications or Auto Scaling policies.
If you are using temporary security credentials granted using AWS STS, you cannot stop or terminate an EC2 instance using alarm actions.
The first time you create an alarm in the AWS Management Console, the CLI, or by using the PutMetricAlarm API,
CloudWatch creates the necessary service-linked role for you. The service-linked role is called
AWSServiceRoleForCloudWatchEvents
. For more information, see AWS service-linked role.
putMetricAlarm
in interface AmazonCloudWatch
public PutMetricDataResult putMetricData(PutMetricDataRequest request)
AmazonCloudWatch
Publishes metric data points to Amazon CloudWatch. CloudWatch associates the data points with the specified metric. If the specified metric does not exist, CloudWatch creates the metric. When CloudWatch creates a metric, it can take up to fifteen minutes for the metric to appear in calls to ListMetrics.
You can publish either individual data points in the Value
field, or arrays of values and the number
of times each value occurred during the period by using the Values
and Counts
fields in
the MetricDatum
structure. Using the Values
and Counts
method enables you
to publish up to 150 values per metric with one PutMetricData
request, and supports retrieving
percentile statistics on this data.
Each PutMetricData
request is limited to 40 KB in size for HTTP POST requests. You can send a
payload compressed by gzip. Each request is also limited to no more than 20 different metrics.
Although the Value
parameter accepts numbers of type Double
, CloudWatch rejects values
that are either too small or too large. Values must be in the range of 8.515920e-109 to 1.174271e+108 (Base 10)
or 2e-360 to 2e360 (Base 2). In addition, special values (for example, NaN, +Infinity, -Infinity) are not
supported.
You can use up to 10 dimensions per metric to further clarify what data the metric collects. For more information about specifying dimensions, see Publishing Metrics in the Amazon CloudWatch User Guide.
Data points with time stamps from 24 hours ago or longer can take at least 48 hours to become available for GetMetricData or GetMetricStatistics from the time they are submitted.
CloudWatch needs raw data points to calculate percentile statistics. If you publish data using a statistic set instead, you can only retrieve percentile statistics for this data if one of the following conditions is true:
The SampleCount
value of the statistic set is 1 and Min
, Max
, and
Sum
are all equal.
The Min
and Max
are equal, and Sum
is equal to Min
multiplied
by SampleCount
.
putMetricData
in interface AmazonCloudWatch
public SetAlarmStateResult setAlarmState(SetAlarmStateRequest request)
AmazonCloudWatch
Temporarily sets the state of an alarm for testing purposes. When the updated state differs from the previous
value, the action configured for the appropriate state is invoked. For example, if your alarm is configured to
send an Amazon SNS message when an alarm is triggered, temporarily changing the alarm state to ALARM
sends an SNS message. The alarm returns to its actual state (often within seconds). Because the alarm state
change happens quickly, it is typically only visible in the alarm's History tab in the Amazon CloudWatch
console or through DescribeAlarmHistory.
setAlarmState
in interface AmazonCloudWatch
public void shutdown()
AmazonCloudWatch
shutdown
in interface AmazonCloudWatch
public ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request)
AmazonCloudWatch
Response metadata is only cached for a limited period of time, so if you need to access this extra diagnostic information for an executed request, you should use this method to retrieve it as soon as possible after executing a request.
getCachedResponseMetadata
in interface AmazonCloudWatch
request
- The originally executed request.public AmazonCloudWatchWaiters waiters()
waiters
in interface AmazonCloudWatch
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