AwsSdkMetrics (AWS SDK for Java

java.lang.Object
- java.lang.Enum<AwsSdkMetrics>
- - com.amazonaws.metrics.AwsSdkMetrics

All Implemented Interfaces:

Serializable, Comparable<AwsSdkMetrics>
```
public enum AwsSdkMetrics
extends Enum<AwsSdkMetrics>
```
Used to control the default AWS SDK metric collection system.
The default metric collection of the Java AWS SDK is disabled by default. To enable it, simply specify the system property "com.amazonaws.sdk.enableDefaultMetrics" when starting up the JVM. When the system property is specified, a default metric collector will be started at the AWS SDK level. The default implementation uploads the request/response metrics captured to Amazon CloudWatch using AWS credentials obtained via the DefaultAWSCredentialsProviderChain.
For additional optional attributes that can be specified for the system property, please read the javadoc of the individual fields of this class for more details.
Instead of via system properties, the default AWS SDK metric collection can also be enabled programmatically via enableDefaultMetrics(). Similarly, metric collection at the AWS SDK level can be disabled via disableMetrics().
Clients who needs to fully customize the metric collection can implement the SPI MetricCollector, and then replace the default AWS SDK implementation of the collector via setMetricCollector(MetricCollector).
Alternatively, for limited customization of the internal collector implementation provided by the AWS SDK, one can extend the internal Amazon CloudWatch metric collector. See the javadoc at com.amazonaws.metrics.internal.cloudwatch.CloudWatchMetricConfig for more details.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`AWS_CREDENTAIL_PROPERTIES_FILE` Used to specify an AWS credential property file.
`static String`	`CLOUDWATCH_REGION` Used to specify the Amazon CloudWatch region for metrics uploading purposes.
`static String`	`DEFAULT_METRIC_NAMESPACE`
`static String`	`EXCLUDE_MACHINE_METRICS` Used to exclude the generation of JVM metrics when the AWS SDK default metrics is enabled.
`static String`	`HOST_METRIC_NAME` Used to explicitly specify the host name for metric purposes, instead of detecting the host name via `InetAddress` when the AWS SDK default metrics is enabled.
`static String`	`INCLUDE_PER_HOST_METRICS` Used to generate per host level metrics when the AWS SDK default metrics is enabled.
`static String`	`JVM_METRIC_NAME` Used to generate per JVM level metrics when the AWS SDK default metrics is enabled.
`static String`	`METRIC_NAME_SPACE` Used to specify a custom metric name space.
`static String`	`METRIC_QUEUE_SIZE` Used to specify the internal in-memory queue size for queuing metrics data points.
`static String`	`QUEUE_POLL_TIMEOUT_MILLI` Used to specify the internal queue polling timeout in millisecond.
`static String`	`USE_SINGLE_METRIC_NAMESPACE` Used to enable the use of a single metric namespace for all levels of SDK generated CloudWatch metrics such as JVM level, host level, etc.

Method Summary

Methods
Modifier and Type	Method and Description
`static boolean`	`add(MetricType type)` Adds the given metric type to the registry of predefined metrics to be captured at the AWS SDK level.
`static <T extends MetricType> boolean`	`addAll(Collection<T> types)` Adds the given metric types to the registry of predefined metrics to be captured at the AWS SDK level.
`static void`	`disableMetrics()` Convenient method to disable the metric collector at the AWS SDK level.
`static boolean`	`enableDefaultMetrics()` Starts the default AWS SDK metric collector, but only if no metric collector is currently in use at the AWS SDK level.
`static String`	`getCredentailFile()` Returns the last set AWS credential file, or null if there is none.
`static AWSCredentialsProvider`	`getCredentialProvider()` Returns the credential provider for the default AWS SDK metric implementation.
`static String`	`getHostMetricName()` Returns the host name for generating per-host level metrics; or null or blank if the host is to be automatically detected via `InetAddress`.
`static String`	`getJvmMetricName()` Returns the name of the JVM for generating per-JVM level metrics; or null or blank if per-JVM level metrics are disabled.
`static <T extends MetricCollector> T`	`getMetricCollector()`
`static String`	`getMetricNameSpace()` Returns the metric name space, which is never null or blank.
`static Integer`	`getMetricQueueSize()` Returns the internal metric queue size to be used for the default AWS SDK metric collector; or null if the default is to be used.
`static Set<MetricType>`	`getPredefinedMetrics()` Returns an unmodifiable set of the current predefined metrics.
`static Long`	`getQueuePollTimeoutMilli()` Returns the internal metric queue timeout in millisecond to be used for the default AWS SDK metric collector; or null if the default is to be used.
`static Regions`	`getRegion()` Returns the region configured for the default AWS SDK metric collector; or null if the default is to be used.
`static <T extends RequestMetricCollector> T`	`getRequestMetricCollector()` Returns a non-null request metric collector for the SDK.
`static <T extends ServiceMetricCollector> T`	`getServiceMetricCollector()`
`static boolean`	`isDefaultMetricsEnabled()` Returns true if the system property `SDKGlobalConfiguration.DEFAULT_METRICS_SYSTEM_PROPERTY` has been set; false otherwise.
`static boolean`	`isMachineMetricExcluded()` Returns true if machine metrics is to be excluded.
`static boolean`	`isMetricAdminMBeanRegistered()` Returns true if the metric admin MBean is currently registered for JMX access; false otherwise.
`static boolean`	`isMetricsEnabled()` Returns true if metrics at the AWS SDK level is enabled; false if disabled.
`static boolean`	`isPerHostMetricEnabled()` Returns true if per-host metrics is enabled; false otherwise.
`static boolean`	`isPerHostMetricIncluded()` Returns true if the per-host metrics flag has been set; false otherwise.
`static boolean`	`isSingleMetricNamespace()` Returns true if a single metric name space is to be used for all levels of SDK generated CloudWatch metrics, including JVM level, host level, etc.; false otherwise.
`static boolean`	`registerMetricAdminMBean()` Registers the metric admin MBean for JMX access.
`static boolean`	`remove(MetricType type)` Removes the given metric type from the registry of predefined metrics to be captured at the AWS SDK level.
`static <T extends MetricType> void`	`set(Collection<T> types)` Sets the given metric types to replace the registry of predefined metrics to be captured at the AWS SDK level.
`static void`	`setCredentialFile(String filepath)` Sets the AWS credential file to be used for accessing Amazon CloudWatch.
`static void`	`setCredentialProvider(AWSCredentialsProvider provider)` Sets the credential provider for the default AWS SDK metric implementation; or null if the default is to be used.
`static void`	`setHostMetricName(String hostMetricName)` Sets the host name for generating per-host level metrics.
`static void`	`setJvmMetricName(String jvmMetricName)` Sets the name of the JVM for generating per-JVM level metrics.
`static void`	`setMachineMetricsExcluded(boolean excludeMachineMetrics)` Used to set whether the machine metrics is to be excluded.
`static void`	`setMetricCollector(MetricCollector mc)` Sets the metric collector to be used by the AWS SDK, and stop the previously running collector used by the AWS SDK, if any.
`static void`	`setMetricNameSpace(String metricNameSpace)` Sets the metric name space.
`static void`	`setMetricQueueSize(Integer size)` Sets the metric queue size to be used for the default AWS SDK metric collector; or null if the default is to be used.
`static void`	`setPerHostMetricsIncluded(boolean includePerHostMetrics)` Used to set whether the per-host metrics is to be included.
`static void`	`setQueuePollTimeoutMilli(Long timeoutMilli)` Sets the queue poll time in millisecond to be used for the default AWS SDK metric collector; or null if the default is to be used.
`static void`	`setRegion(Regions region)` Sets the region to be used for the default AWS SDK metric collector; or null if the default is to be used.
`static void`	`setSingleMetricNamespace(boolean singleMetricNamespace)` Used to set whether a single metric name space is to be used for all levels of SDK generated CloudWatch metrics, including JVM level, host level, etc.
`static boolean`	`unregisterMetricAdminMBean()` Unregisters the metric admin MBean from JMX.
`static AwsSdkMetrics`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static AwsSdkMetrics[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - DEFAULT_METRIC_NAMESPACE
```
public static final String DEFAULT_METRIC_NAMESPACE
```
    See Also:
    Constant Field Values
  - USE_SINGLE_METRIC_NAMESPACE
```
public static final String USE_SINGLE_METRIC_NAMESPACE
```
    Used to enable the use of a single metric namespace for all levels of SDK generated CloudWatch metrics such as JVM level, host level, etc.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=useSingleMetricNamespace
 
```
    See Also:
    Constant Field Values
  - EXCLUDE_MACHINE_METRICS
```
public static final String EXCLUDE_MACHINE_METRICS
```
    Used to exclude the generation of JVM metrics when the AWS SDK default metrics is enabled. By default, jvm metrics is included.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=excludeJvmMetrics
 
```
    See Also:
    Constant Field Values
  - INCLUDE_PER_HOST_METRICS
```
public static final String INCLUDE_PER_HOST_METRICS
```
    Used to generate per host level metrics when the AWS SDK default metrics is enabled. By default, per-host level metrics is excluded.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=includePerHostMetrics
 
```
    See Also:
    Constant Field Values
  - AWS_CREDENTAIL_PROPERTIES_FILE
```
public static final String AWS_CREDENTAIL_PROPERTIES_FILE
```
    Used to specify an AWS credential property file. By default, the DefaultAWSCredentialsProviderChain is used.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=credentialFile=/path/aws.properties
 
```
    See Also:
    Constant Field Values
  - CLOUDWATCH_REGION
```
public static final String CLOUDWATCH_REGION
```
    Used to specify the Amazon CloudWatch region for metrics uploading purposes. By default, metrics are uploaded to us-east-1.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=cloudwatchRegion=us-west-2
 
```
    See Also:
    Constant Field Values
  - METRIC_QUEUE_SIZE
```
public static final String METRIC_QUEUE_SIZE
```
    Used to specify the internal in-memory queue size for queuing metrics data points. The default size is 1,000.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=metricQueueSize=1000
 
```
    See Also:
    Constant Field Values
  - QUEUE_POLL_TIMEOUT_MILLI
```
public static final String QUEUE_POLL_TIMEOUT_MILLI
```
    Used to specify the internal queue polling timeout in millisecond. The default timeout is 1 minute, which is optimal for the default CloudWatch implementation.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=getQueuePollTimeoutMilli=60000
 
```
    See Also:
    Constant Field Values
  - METRIC_NAME_SPACE
```
public static final String METRIC_NAME_SPACE
```
    Used to specify a custom metric name space. The default name space is DEFAULT_METRIC_NAMESPACE.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=metricNameSpace=MyNameSpace
 
```
    See Also:
    Constant Field Values
  - JVM_METRIC_NAME
```
public static final String JVM_METRIC_NAME
```
    Used to generate per JVM level metrics when the AWS SDK default metrics is enabled. By default, JVM level metrics are not generated.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=jvmMetricName=Tomcat1
 
```
    See Also:
    Constant Field Values
  - HOST_METRIC_NAME
```
public static final String HOST_METRIC_NAME
```
    Used to explicitly specify the host name for metric purposes, instead of detecting the host name via InetAddress when the AWS SDK default metrics is enabled. Specifying the host name also has the side effecting of enabling per host level metrics.
```
 Example:
  -Dcom.amazonaws.sdk.enableDefaultMetrics=hostMetricName=MyHost
 
```
    See Also:
    Constant Field Values
- Method Detail
  - values
```
public static AwsSdkMetrics[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (AwsSdkMetrics c : AwsSdkMetrics.values())
    System.out.println(c);
```
    Returns:
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static AwsSdkMetrics valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    name - the name of the enum constant to be returned.
    
    Returns:
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - isMetricAdminMBeanRegistered
```
public static boolean isMetricAdminMBeanRegistered()
```
    Returns true if the metric admin MBean is currently registered for JMX access; false otherwise.
  - registerMetricAdminMBean
```
public static boolean registerMetricAdminMBean()
```
    Registers the metric admin MBean for JMX access.
    
    Returns:
    true if the registeration succeeded; false otherwise.
  - unregisterMetricAdminMBean
```
public static boolean unregisterMetricAdminMBean()
```
    Unregisters the metric admin MBean from JMX.
    
    Returns:
    true if the unregisteration succeeded; false otherwise.
  - getRequestMetricCollector
```
public static <T extends RequestMetricCollector> T getRequestMetricCollector()
```
    Returns a non-null request metric collector for the SDK. If no custom request metric collector has previously been specified via setMetricCollector(MetricCollector) and the SDKGlobalConfiguration.DEFAULT_METRICS_SYSTEM_PROPERTY has been set, then this method will initialize and return the default metric collector provided by the AWS SDK on a best-attempt basis.
  - getServiceMetricCollector
```
public static <T extends ServiceMetricCollector> T getServiceMetricCollector()
```
  - getMetricCollector
```
public static <T extends MetricCollector> T getMetricCollector()
```
  - setMetricCollector
```
public static void setMetricCollector(MetricCollector mc)
```
    Sets the metric collector to be used by the AWS SDK, and stop the previously running collector used by the AWS SDK, if any. Note, however, a request metric collector specified at the web service client level or request level, if any, always takes precedence over the one specified at the AWS SDK level.
    Caller of this method is responsible for starting the new metric collector specified as the input parameter.
    
    Parameters:
    mc - the metric collector to be used by the AWS SDK; or null if no metric collection is to be performed at the AWS SDK level.
    See Also:
    RequestMetricCollector, RequestMetricCollector.NONE
  - setMachineMetricsExcluded
```
public static void setMachineMetricsExcluded(boolean excludeMachineMetrics)
```
    Used to set whether the machine metrics is to be excluded.
    
    Parameters:
    excludeMachineMetrics - true if machine metrics is to be excluded; false otherwise.
  - setPerHostMetricsIncluded
```
public static void setPerHostMetricsIncluded(boolean includePerHostMetrics)
```
    Used to set whether the per-host metrics is to be included.
    
    Parameters:
    includePerHostMetrics - true if per-host metrics is to be included; false otherwise.
  - isDefaultMetricsEnabled
```
public static boolean isDefaultMetricsEnabled()
```
    Returns true if the system property SDKGlobalConfiguration.DEFAULT_METRICS_SYSTEM_PROPERTY has been set; false otherwise.
  - isSingleMetricNamespace
```
public static boolean isSingleMetricNamespace()
```
    Returns true if a single metric name space is to be used for all levels of SDK generated CloudWatch metrics, including JVM level, host level, etc.; false otherwise.
  - setSingleMetricNamespace
```
public static void setSingleMetricNamespace(boolean singleMetricNamespace)
```
    Used to set whether a single metric name space is to be used for all levels of SDK generated CloudWatch metrics, including JVM level, host level, etc.
    
    Parameters:
    singleMetricNamespace - true if single metric name is to be used; false otherwise.
  - isMetricsEnabled
```
public static boolean isMetricsEnabled()
```
    Returns true if metrics at the AWS SDK level is enabled; false if disabled.
  - isMachineMetricExcluded
```
public static boolean isMachineMetricExcluded()
```
    Returns true if machine metrics is to be excluded.
  - isPerHostMetricIncluded
```
public static boolean isPerHostMetricIncluded()
```
    Returns true if the per-host metrics flag has been set; false otherwise.
  - isPerHostMetricEnabled
```
public static boolean isPerHostMetricEnabled()
```
    Returns true if per-host metrics is enabled; false otherwise.
  - enableDefaultMetrics
```
public static boolean enableDefaultMetrics()
```
    Starts the default AWS SDK metric collector, but only if no metric collector is currently in use at the AWS SDK level.
    
    Returns:
    true if the default AWS SDK metric collector has been successfully started by this call; false otherwise.
  - disableMetrics
```
public static void disableMetrics()
```
    Convenient method to disable the metric collector at the AWS SDK level.
  - add
```
public static boolean add(MetricType type)
```
    Adds the given metric type to the registry of predefined metrics to be captured at the AWS SDK level.
    
    Returns:
    true if the set of predefined metric types gets changed as a result of the call
  - addAll
```
public static <T extends MetricType> boolean addAll(Collection<T> types)
```
    Adds the given metric types to the registry of predefined metrics to be captured at the AWS SDK level.
    
    Returns:
    true if the set of predefined metric types gets changed as a result of the call
  - set
```
public static <T extends MetricType> void set(Collection<T> types)
```
    Sets the given metric types to replace the registry of predefined metrics to be captured at the AWS SDK level.
  - remove
```
public static boolean remove(MetricType type)
```
    Removes the given metric type from the registry of predefined metrics to be captured at the AWS SDK level.
    
    Returns:
    true if the set of predefined metric types gets changed as a result of the call
  - getPredefinedMetrics
```
public static Set<MetricType> getPredefinedMetrics()
```
    Returns an unmodifiable set of the current predefined metrics.
  - getCredentialProvider
```
public static AWSCredentialsProvider getCredentialProvider()
```
    Returns the credential provider for the default AWS SDK metric implementation. This method is restricted to calls from the default AWS SDK metric implementation.
    
    Throws:
    
    SecurityException - if called outside the default AWS SDK metric implementation.
  - setCredentialProvider
```
public static void setCredentialProvider(AWSCredentialsProvider provider)
```
    Sets the credential provider for the default AWS SDK metric implementation; or null if the default is to be used. Calling this method may result in the credential provider being different from the credential file property.
  - getRegion
```
public static Regions getRegion()
```
    Returns the region configured for the default AWS SDK metric collector; or null if the default is to be used.
  - setRegion
```
public static void setRegion(Regions region)
```
    Sets the region to be used for the default AWS SDK metric collector; or null if the default is to be used.
  - getCredentailFile
```
public static String getCredentailFile()
```
    Returns the last set AWS credential file, or null if there is none.
  - setCredentialFile
```
public static void setCredentialFile(String filepath)
                              throws FileNotFoundException,
                                     IOException
```
    Sets the AWS credential file to be used for accessing Amazon CloudWatch. Successfully calling this method would result in the AWS credential provider to make use of the given credential file.
    
    Throws:
    
    FileNotFoundException
    
    IOException
  - getMetricQueueSize
```
public static Integer getMetricQueueSize()
```
    Returns the internal metric queue size to be used for the default AWS SDK metric collector; or null if the default is to be used.
  - setMetricQueueSize
```
public static void setMetricQueueSize(Integer size)
```
    Sets the metric queue size to be used for the default AWS SDK metric collector; or null if the default is to be used.
  - getQueuePollTimeoutMilli
```
public static Long getQueuePollTimeoutMilli()
```
    Returns the internal metric queue timeout in millisecond to be used for the default AWS SDK metric collector; or null if the default is to be used.
  - setQueuePollTimeoutMilli
```
public static void setQueuePollTimeoutMilli(Long timeoutMilli)
```
    Sets the queue poll time in millisecond to be used for the default AWS SDK metric collector; or null if the default is to be used.
  - getMetricNameSpace
```
public static String getMetricNameSpace()
```
    Returns the metric name space, which is never null or blank.
  - setMetricNameSpace
```
public static void setMetricNameSpace(String metricNameSpace)
```
    Sets the metric name space.
    
    Parameters:
    metricNameSpace - metric name space which must neither be null or blank.
    
    Throws:
    
    IllegalArgumentException - if the specified metric name space is either null or blank.
  - getJvmMetricName
```
public static String getJvmMetricName()
```
    Returns the name of the JVM for generating per-JVM level metrics; or null or blank if per-JVM level metrics are disabled.
  - setJvmMetricName
```
public static void setJvmMetricName(String jvmMetricName)
```
    Sets the name of the JVM for generating per-JVM level metrics.
    
    Parameters:
    jvmMetricName - name of the JVM for generating per-JVM level metrics; or null or blank if per-JVM level metrics are to be disabled.
  - getHostMetricName
```
public static String getHostMetricName()
```
    Returns the host name for generating per-host level metrics; or null or blank if the host is to be automatically detected via InetAddress.
  - setHostMetricName
```
public static void setHostMetricName(String hostMetricName)
```
    Sets the host name for generating per-host level metrics.
    
    Parameters:
    hostMetricName - host name for generating per-host level metrics; or null or blank if the host is to be automatically detected via InetAddress.

Enum AwsSdkMetrics

Field Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_METRIC_NAMESPACE

USE_SINGLE_METRIC_NAMESPACE

EXCLUDE_MACHINE_METRICS

INCLUDE_PER_HOST_METRICS

AWS_CREDENTAIL_PROPERTIES_FILE

CLOUDWATCH_REGION

METRIC_QUEUE_SIZE

QUEUE_POLL_TIMEOUT_MILLI

METRIC_NAME_SPACE

JVM_METRIC_NAME

HOST_METRIC_NAME

Method Detail

values

valueOf

isMetricAdminMBeanRegistered

registerMetricAdminMBean

unregisterMetricAdminMBean

getRequestMetricCollector

getServiceMetricCollector

getMetricCollector

setMetricCollector

setMachineMetricsExcluded

setPerHostMetricsIncluded

isDefaultMetricsEnabled

isSingleMetricNamespace

setSingleMetricNamespace

isMetricsEnabled

isMachineMetricExcluded

isPerHostMetricIncluded

isPerHostMetricEnabled

enableDefaultMetrics

disableMetrics

add

addAll

set

remove

getPredefinedMetrics

getCredentialProvider

setCredentialProvider

getRegion

setRegion

getCredentailFile

setCredentialFile

getMetricQueueSize

setMetricQueueSize

getQueuePollTimeoutMilli

setQueuePollTimeoutMilli

getMetricNameSpace

setMetricNameSpace

getJvmMetricName

setJvmMetricName

getHostMetricName

setHostMetricName