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public interface AmazonCloudWatch
Interface for accessing AmazonCloudWatch. Amazon CloudWatch
Amazon CloudWatch is a web service that enables you to monitor and manage various metrics, as well as configure alarm actions based on data from metrics.
Amazon CloudWatch monitoring enables you to collect, analyze, and view system and application metrics so that you can make operational and business decisions more quickly and with greater confidence. You can use Amazon CloudWatch to collect metrics about your AWS resources, such as the performance of your Amazon EC2 instances.
If you are registered for an AWS product that supports Amazon CloudWatch, the service automatically pushes basic metrics to CloudWatch for you. Once Amazon CloudWatch contains metrics, you can calculate statistics based on that data.
Amazon CloudWatch alarms help you implement decisions more easily by enabling you do things like send notifications or automatically make changes to the resources you are monitoring, based on rules that you define. For example, you can create alarms that initiate Auto Scaling and Simple Notification Service actions on your behalf.
Method Summary | |
---|---|
void |
deleteAlarms(DeleteAlarmsRequest deleteAlarmsRequest)
Deletes all specified alarms. |
DescribeAlarmHistoryResult |
describeAlarmHistory()
Retrieves history for the specified alarm. |
DescribeAlarmHistoryResult |
describeAlarmHistory(DescribeAlarmHistoryRequest describeAlarmHistoryRequest)
Retrieves history for the specified alarm. |
DescribeAlarmsResult |
describeAlarms()
Retrieves alarms with the specified names. |
DescribeAlarmsResult |
describeAlarms(DescribeAlarmsRequest describeAlarmsRequest)
Retrieves alarms with the specified names. |
DescribeAlarmsForMetricResult |
describeAlarmsForMetric(DescribeAlarmsForMetricRequest describeAlarmsForMetricRequest)
Retrieves all alarms for a single metric. |
void |
disableAlarmActions(DisableAlarmActionsRequest disableAlarmActionsRequest)
Disables actions for the specified alarms. |
void |
enableAlarmActions(EnableAlarmActionsRequest enableAlarmActionsRequest)
Enables 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. |
GetMetricStatisticsResult |
getMetricStatistics(GetMetricStatisticsRequest getMetricStatisticsRequest)
Gets statistics for the specified metric. |
ListMetricsResult |
listMetrics()
Returns a list of valid metrics stored for the AWS account owner. |
ListMetricsResult |
listMetrics(ListMetricsRequest listMetricsRequest)
Returns a list of valid metrics stored for the AWS account owner. |
void |
putMetricAlarm(PutMetricAlarmRequest putMetricAlarmRequest)
Creates or updates an alarm and associates it with the specified Amazon CloudWatch metric. |
void |
setAlarmState(SetAlarmStateRequest setAlarmStateRequest)
Temporarily sets the state of an alarm. |
void |
setEndpoint(String endpoint)
Overrides the default endpoint for this client ("https://monitoring.amazonaws.com"). |
void |
shutdown()
Shuts down this client object, releasing any resources that might be held open. |
Method Detail |
---|
void setEndpoint(String endpoint) throws IllegalArgumentException
Callers can pass in just the endpoint (ex: "ec2.amazonaws.com") or a full
URL, including the protocol (ex: "https://ec2.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: http://developer.amazonwebservices.com/connect/entry.jspa?externalID=3912
endpoint
- The endpoint (ex: "ec2.amazonaws.com") or a full URL,
including the protocol (ex: "https://ec2.amazonaws.com") of
the region specific AWS endpoint this client will communicate
with.
IllegalArgumentException
- If any problems are detected with the specified endpoint.void putMetricAlarm(PutMetricAlarmRequest putMetricAlarmRequest) throws AmazonServiceException, AmazonClientException
Creates or updates an alarm and associates it with the specified Amazon CloudWatch metric. Optionally, this operation can associate one or more Amazon Simple Notification Service resources with the alarm.
When this operation creates an alarm, the alarm state is immediately
set to INSUFFICIENT_DATA
. The alarm is evaluated and
its StateValue
is set appropriately. Any actions
associated with the StateValue
is then executed.
NOTE: When updating an existing alarm, its StateValue is left unchanged.
putMetricAlarmRequest
- Container for the necessary parameters to
execute the PutMetricAlarm service method on AmazonCloudWatch.
LimitExceededException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.ListMetricsResult listMetrics(ListMetricsRequest listMetricsRequest) throws AmazonServiceException, AmazonClientException
Returns a list of valid metrics stored for the AWS account owner.
Returned metrics can be used with GetMetricStatistics
to
obtain statistical data for a given metric.
NOTE: Up to 500 results are returned for any one call. To retrieve further results, use returned NextToken values with subsequent ListMetrics operations.
listMetricsRequest
- Container for the necessary parameters to
execute the ListMetrics service method on AmazonCloudWatch.
InternalServiceException
InvalidParameterValueException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.GetMetricStatisticsResult getMetricStatistics(GetMetricStatisticsRequest getMetricStatisticsRequest) throws AmazonServiceException, AmazonClientException
Gets statistics for the specified metric.
NOTE: The maximum number of datapoints returned from a single GetMetricStatistics request is 1,440. If a request is made that generates more than 1,440 datapoints, Amazon CloudWatch returns an error. In such a case, alter the request by narrowing the specified time range or increasing the specified period. Alternatively, make multiple requests across adjacent time ranges.
getMetricStatisticsRequest
- Container for the necessary
parameters to execute the GetMetricStatistics service method on
AmazonCloudWatch.
InvalidParameterValueException
InternalServiceException
InvalidParameterCombinationException
MissingRequiredParameterException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.void disableAlarmActions(DisableAlarmActionsRequest disableAlarmActionsRequest) throws AmazonServiceException, AmazonClientException
Disables actions for the specified alarms. When an alarm's actions are disabled the alarm's state may change, but none of the alarm's actions will execute.
disableAlarmActionsRequest
- Container for the necessary
parameters to execute the DisableAlarmActions service method on
AmazonCloudWatch.
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.DescribeAlarmsResult describeAlarms(DescribeAlarmsRequest describeAlarmsRequest) throws AmazonServiceException, AmazonClientException
Retrieves alarms with the specified names. If no name is specified, all alarms for the user are returned. Alarms can be retrieved by using only a prefix for the alarm name, the alarm state, or a prefix for any action.
describeAlarmsRequest
- Container for the necessary parameters to
execute the DescribeAlarms service method on AmazonCloudWatch.
InvalidNextTokenException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.DescribeAlarmsForMetricResult describeAlarmsForMetric(DescribeAlarmsForMetricRequest describeAlarmsForMetricRequest) throws AmazonServiceException, AmazonClientException
Retrieves all alarms for a single metric. Specify a statistic, period, or unit to filter the set of alarms further.
describeAlarmsForMetricRequest
- Container for the necessary
parameters to execute the DescribeAlarmsForMetric service method on
AmazonCloudWatch.
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.DescribeAlarmHistoryResult describeAlarmHistory(DescribeAlarmHistoryRequest describeAlarmHistoryRequest) throws AmazonServiceException, AmazonClientException
Retrieves history for the specified alarm. Filter alarms by date range or item type. If an alarm name is not specified, Amazon CloudWatch returns histories for all of the owner's alarms.
NOTE: Amazon CloudWatch retains the history of deleted alarms for a period of six weeks. If an alarm has been deleted, its history can still be queried.
describeAlarmHistoryRequest
- Container for the necessary
parameters to execute the DescribeAlarmHistory service method on
AmazonCloudWatch.
InvalidNextTokenException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.void enableAlarmActions(EnableAlarmActionsRequest enableAlarmActionsRequest) throws AmazonServiceException, AmazonClientException
Enables actions for the specified alarms.
enableAlarmActionsRequest
- Container for the necessary
parameters to execute the EnableAlarmActions service method on
AmazonCloudWatch.
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.void deleteAlarms(DeleteAlarmsRequest deleteAlarmsRequest) throws AmazonServiceException, AmazonClientException
Deletes all specified alarms. In the event of an error, no alarms are deleted.
deleteAlarmsRequest
- Container for the necessary parameters to
execute the DeleteAlarms service method on AmazonCloudWatch.
ResourceNotFoundException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.void setAlarmState(SetAlarmStateRequest setAlarmStateRequest) throws AmazonServiceException, AmazonClientException
Temporarily sets the state of an alarm. When the updated
StateValue
differs from the previous value, the action
configured for the appropriate state is invoked. This is not a
permanent change. The next periodic alarm check (in about a minute)
will set the alarm to its actual state.
setAlarmStateRequest
- Container for the necessary parameters to
execute the SetAlarmState service method on AmazonCloudWatch.
ResourceNotFoundException
InvalidFormatException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.ListMetricsResult listMetrics() throws AmazonServiceException, AmazonClientException
Returns a list of valid metrics stored for the AWS account owner.
Returned metrics can be used with GetMetricStatistics
to
obtain statistical data for a given metric.
NOTE: Up to 500 results are returned for any one call. To retrieve further results, use returned NextToken values with subsequent ListMetrics operations.
InternalServiceException
InvalidParameterValueException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.DescribeAlarmsResult describeAlarms() throws AmazonServiceException, AmazonClientException
Retrieves alarms with the specified names. If no name is specified, all alarms for the user are returned. Alarms can be retrieved by using only a prefix for the alarm name, the alarm state, or a prefix for any action.
InvalidNextTokenException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.DescribeAlarmHistoryResult describeAlarmHistory() throws AmazonServiceException, AmazonClientException
Retrieves history for the specified alarm. Filter alarms by date range or item type. If an alarm name is not specified, Amazon CloudWatch returns histories for all of the owner's alarms.
NOTE: Amazon CloudWatch retains the history of deleted alarms for a period of six weeks. If an alarm has been deleted, its history can still be queried.
InvalidNextTokenException
AmazonClientException
- If any internal errors are encountered inside the client while
attempting to make the request or handle the response. For example
if a network connection is not available.
AmazonServiceException
- If an error response is returned by AmazonCloudWatch indicating
either a problem with the data in the request, or a server side issue.void shutdown()
ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request)
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.
request
- The originally executed request.
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