```
public class Config

                    
```
Config reads values with the following priority: 1) system properties, 2) environment variables, 3) optional configuration file. It also includes default values to ensure a valid config.
System properties are PREFIX'ed. Environment variables are the same as the system property, but uppercased with '.' -> '_'.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public enum`	`Config.PropagationStyle`

Field Summary

Fields
Modifier and Type	Field	Description
`public final static String`	`PROFILING_URL_TEMPLATE`
`public final static String`	`CONFIGURATION_FILE`
`public final static String`	`API_KEY`
`public final static String`	`API_KEY_FILE`
`public final static String`	`SITE`
`public final static String`	`SERVICE_NAME`
`public final static String`	`TRACE_ENABLED`
`public final static String`	`INTEGRATIONS_ENABLED`
`public final static String`	`WRITER_TYPE`
`public final static String`	`AGENT_HOST`
`public final static String`	`TRACE_AGENT_PORT`
`public final static String`	`AGENT_PORT_LEGACY`
`public final static String`	`AGENT_UNIX_DOMAIN_SOCKET`
`public final static String`	`PRIORITY_SAMPLING`
`public final static String`	`TRACE_RESOLVER_ENABLED`
`public final static String`	`SERVICE_MAPPING`
`public final static String`	`TAGS`
`public final static String`	`GLOBAL_TAGS`
`public final static String`	`SPAN_TAGS`
`public final static String`	`JMX_TAGS`
`public final static String`	`TRACE_ANALYTICS_ENABLED`
`public final static String`	`TRACE_ANNOTATIONS`
`public final static String`	`TRACE_EXECUTORS_ALL`
`public final static String`	`TRACE_EXECUTORS`
`public final static String`	`TRACE_METHODS`
`public final static String`	`TRACE_CLASSES_EXCLUDE`
`public final static String`	`TRACE_SAMPLING_SERVICE_RULES`
`public final static String`	`TRACE_SAMPLING_OPERATION_RULES`
`public final static String`	`TRACE_SAMPLE_RATE`
`public final static String`	`TRACE_RATE_LIMIT`
`public final static String`	`TRACE_REPORT_HOSTNAME`
`public final static String`	`HEADER_TAGS`
`public final static String`	`HTTP_SERVER_ERROR_STATUSES`
`public final static String`	`HTTP_CLIENT_ERROR_STATUSES`
`public final static String`	`HTTP_SERVER_TAG_QUERY_STRING`
`public final static String`	`HTTP_CLIENT_TAG_QUERY_STRING`
`public final static String`	`HTTP_CLIENT_HOST_SPLIT_BY_DOMAIN`
`public final static String`	`DB_CLIENT_HOST_SPLIT_BY_INSTANCE`
`public final static String`	`SPLIT_BY_TAGS`
`public final static String`	`SCOPE_DEPTH_LIMIT`
`public final static String`	`PARTIAL_FLUSH_MIN_SPANS`
`public final static String`	`RUNTIME_CONTEXT_FIELD_INJECTION`
`public final static String`	`PROPAGATION_STYLE_EXTRACT`
`public final static String`	`PROPAGATION_STYLE_INJECT`
`public final static String`	`JMX_FETCH_ENABLED`
`public final static String`	`JMX_FETCH_CONFIG_DIR`
`public final static String`	`JMX_FETCH_CONFIG`
`public final static String`	`JMX_FETCH_METRICS_CONFIGS`
`public final static String`	`JMX_FETCH_CHECK_PERIOD`
`public final static String`	`JMX_FETCH_REFRESH_BEANS_PERIOD`
`public final static String`	`JMX_FETCH_STATSD_HOST`
`public final static String`	`JMX_FETCH_STATSD_PORT`
`public final static String`	`HEALTH_METRICS_ENABLED`
`public final static String`	`HEALTH_METRICS_STATSD_HOST`
`public final static String`	`HEALTH_METRICS_STATSD_PORT`
`public final static String`	`LOGS_INJECTION_ENABLED`
`public final static String`	`PROFILING_ENABLED`
`public final static String`	`PROFILING_URL`
`public final static String`	`PROFILING_API_KEY_OLD`
`public final static String`	`PROFILING_API_KEY_FILE_OLD`
`public final static String`	`PROFILING_API_KEY_VERY_OLD`
`public final static String`	`PROFILING_API_KEY_FILE_VERY_OLD`
`public final static String`	`PROFILING_TAGS`
`public final static String`	`PROFILING_START_DELAY`
`public final static String`	`PROFILING_START_FORCE_FIRST`
`public final static String`	`PROFILING_UPLOAD_PERIOD`
`public final static String`	`PROFILING_TEMPLATE_OVERRIDE_FILE`
`public final static String`	`PROFILING_UPLOAD_TIMEOUT`
`public final static String`	`PROFILING_UPLOAD_COMPRESSION`
`public final static String`	`PROFILING_PROXY_HOST`
`public final static String`	`PROFILING_PROXY_PORT`
`public final static String`	`PROFILING_PROXY_USERNAME`
`public final static String`	`PROFILING_PROXY_PASSWORD`
`public final static String`	`PROFILING_EXCEPTION_SAMPLE_LIMIT`
`public final static String`	`PROFILING_EXCEPTION_HISTOGRAM_TOP_ITEMS`
`public final static String`	`PROFILING_EXCEPTION_HISTOGRAM_MAX_COLLECTION_SIZE`
`public final static String`	`RUNTIME_ID_TAG`
`public final static String`	`SERVICE`
`public final static String`	`SERVICE_TAG`
`public final static String`	`HOST_TAG`
`public final static String`	`LANGUAGE_TAG_KEY`
`public final static String`	`LANGUAGE_TAG_VALUE`
`public final static String`	`DEFAULT_SITE`
`public final static String`	`DEFAULT_SERVICE_NAME`
`public final static boolean`	`DEFAULT_INTEGRATIONS_ENABLED`
`public final static String`	`DD_AGENT_WRITER_TYPE`
`public final static String`	`LOGGING_WRITER_TYPE`
`public final static String`	`DEFAULT_AGENT_HOST`
`public final static int`	`DEFAULT_TRACE_AGENT_PORT`
`public final static String`	`DEFAULT_AGENT_UNIX_DOMAIN_SOCKET`
`public final static int`	`DEFAULT_JMX_FETCH_STATSD_PORT`
`public final static boolean`	`DEFAULT_METRICS_ENABLED`
`public final static boolean`	`DEFAULT_LOGS_INJECTION_ENABLED`
`public final static boolean`	`DEFAULT_PROFILING_ENABLED`
`public final static int`	`DEFAULT_PROFILING_START_DELAY`
`public final static boolean`	`DEFAULT_PROFILING_START_FORCE_FIRST`
`public final static int`	`DEFAULT_PROFILING_UPLOAD_PERIOD`
`public final static int`	`DEFAULT_PROFILING_UPLOAD_TIMEOUT`
`public final static String`	`DEFAULT_PROFILING_UPLOAD_COMPRESSION`
`public final static int`	`DEFAULT_PROFILING_PROXY_PORT`
`public final static int`	`DEFAULT_PROFILING_EXCEPTION_SAMPLE_LIMIT`
`public final static int`	`DEFAULT_PROFILING_EXCEPTION_HISTOGRAM_TOP_ITEMS`
`public final static int`	`DEFAULT_PROFILING_EXCEPTION_HISTOGRAM_MAX_COLLECTION_SIZE`
`public final static boolean`	`DEFAULT_TRACE_ANALYTICS_ENABLED`
`public final static float`	`DEFAULT_ANALYTICS_SAMPLE_RATE`
`public final static double`	`DEFAULT_TRACE_RATE_LIMIT`
`private final String`	`runtimeId`
`private final String`	`site`
`private final String`	`serviceName`
`private final String`	`writerType`
`private final String`	`agentHost`
`private final int`	`agentPort`
`private final String`	`agentUnixDomainSocket`
`private final Map<String, String>`	`serviceMapping`
`private final List<String>`	`excludedClasses`
`private final Map<String, String>`	`headerTags`
`private final Set<Integer>`	`httpServerErrorStatuses`
`private final Set<Integer>`	`httpClientErrorStatuses`
`private final Set<String>`	`splitByTags`
`private final Integer`	`scopeDepthLimit`
`private final Integer`	`partialFlushMinSpans`
`private final Set<Config.PropagationStyle>`	`propagationStylesToExtract`
`private final Set<Config.PropagationStyle>`	`propagationStylesToInject`
`private final String`	`jmxFetchConfigDir`
`private final List<String>`	`jmxFetchConfigs`
`private final List<String>`	`jmxFetchMetricsConfigs`
`private final Integer`	`jmxFetchCheckPeriod`
`private final Integer`	`jmxFetchRefreshBeansPeriod`
`private final String`	`jmxFetchStatsdHost`
`private final Integer`	`jmxFetchStatsdPort`
`private final String`	`healthMetricsStatsdHost`
`private final Integer`	`healthMetricsStatsdPort`
`private final String`	`traceAnnotations`
`private final String`	`traceMethods`
`private final List<String>`	`traceExecutors`
`private final Map<String, String>`	`traceSamplingServiceRules`
`private final Map<String, String>`	`traceSamplingOperationRules`
`private final Double`	`traceSampleRate`
`private final Double`	`traceRateLimit`
`private final int`	`profilingStartDelay`
`private final int`	`profilingUploadPeriod`
`private final String`	`profilingTemplateOverrideFile`
`private final int`	`profilingUploadTimeout`
`private final String`	`profilingUploadCompression`
`private final String`	`profilingProxyHost`
`private final int`	`profilingProxyPort`
`private final String`	`profilingProxyUsername`
`private final String`	`profilingProxyPassword`
`private final int`	`profilingExceptionSampleLimit`
`private final int`	`profilingExceptionHistogramTopItems`
`private final int`	`profilingExceptionHistogramMaxCollectionSize`

Method Summary

Modifier and Type	Method	Description
`String`	`getRuntimeId()`
`String`	`getSite()`
`String`	`getServiceName()`
`String`	`getWriterType()`
`String`	`getAgentHost()`
`int`	`getAgentPort()`
`String`	`getAgentUnixDomainSocket()`
`Map<String, String>`	`getServiceMapping()`
`List<String>`	`getExcludedClasses()`
`Map<String, String>`	`getHeaderTags()`
`Set<Integer>`	`getHttpServerErrorStatuses()`
`Set<Integer>`	`getHttpClientErrorStatuses()`
`Set<String>`	`getSplitByTags()`
`Integer`	`getScopeDepthLimit()`
`Integer`	`getPartialFlushMinSpans()`
`Set<Config.PropagationStyle>`	`getPropagationStylesToExtract()`
`Set<Config.PropagationStyle>`	`getPropagationStylesToInject()`
`String`	`getJmxFetchConfigDir()`
`List<String>`	`getJmxFetchConfigs()`
`List<String>`	`getJmxFetchMetricsConfigs()`
`Integer`	`getJmxFetchCheckPeriod()`
`Integer`	`getJmxFetchRefreshBeansPeriod()`
`String`	`getJmxFetchStatsdHost()`
`Integer`	`getJmxFetchStatsdPort()`
`String`	`getHealthMetricsStatsdHost()`
`Integer`	`getHealthMetricsStatsdPort()`
`String`	`getTraceAnnotations()`
`String`	`getTraceMethods()`
`List<String>`	`getTraceExecutors()`
`Map<String, String>`	`getTraceSamplingServiceRules()`
`Map<String, String>`	`getTraceSamplingOperationRules()`
`Double`	`getTraceSampleRate()`
`Double`	`getTraceRateLimit()`
`int`	`getProfilingStartDelay()`
`int`	`getProfilingUploadPeriod()`
`String`	`getProfilingTemplateOverrideFile()`
`int`	`getProfilingUploadTimeout()`
`String`	`getProfilingUploadCompression()`
`String`	`getProfilingProxyHost()`
`int`	`getProfilingProxyPort()`
`String`	`getProfilingProxyUsername()`
`String`	`getProfilingProxyPassword()`
`int`	`getProfilingExceptionSampleLimit()`
`int`	`getProfilingExceptionHistogramTopItems()`
`int`	`getProfilingExceptionHistogramMaxCollectionSize()`
`Map<String, String>`	`getLocalRootSpanTags()`
`Map<String, String>`	`getMergedSpanTags()`
`Map<String, String>`	`getMergedJmxTags()`
`Map<String, String>`	`getMergedProfilingTags()`
`float`	`getInstrumentationAnalyticsSampleRate(Array<String> aliases)`	Returns the sample rate for the specified instrumentation or if none specified.
`String`	`getFinalProfilingUrl()`
`boolean`	`isIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)`
`boolean`	`isJmxFetchIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)`
`boolean`	`isRuleEnabled(String name)`
`static boolean`	`jmxFetchIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)`
`boolean`	`isTraceAnalyticsIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)`
`static boolean`	`traceAnalyticsIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)`
`static String`	`getSettingFromEnvironment(String name, String defaultValue)`	Helper method that takes the name, adds a "dd." prefix then checks for System Properties ofthat name.
`static Boolean`	`getBooleanSettingFromEnvironment(String name, Boolean defaultValue)`	Calls getSettingFromEnvironment and converts the result to a Boolean.
`static Float`	`getFloatSettingFromEnvironment(String name, Float defaultValue)`	Calls getSettingFromEnvironment and converts the result to a Float.
`static Config`	`get()`
`static Config`	`get(Properties properties)`
`boolean`	`isTraceEnabled()`
`boolean`	`isIntegrationsEnabled()`
`boolean`	`isPrioritySamplingEnabled()`
`boolean`	`isTraceResolverEnabled()`
`boolean`	`isHttpServerTagQueryString()`
`boolean`	`isHttpClientTagQueryString()`
`boolean`	`isHttpClientSplitByDomain()`
`boolean`	`isDbClientSplitByInstance()`
`boolean`	`isRuntimeContextFieldInjection()`
`boolean`	`isJmxFetchEnabled()`
`boolean`	`isHealthMetricsEnabled()`
`boolean`	`isLogsInjectionEnabled()`
`boolean`	`isReportHostName()`
`boolean`	`isTraceExecutorsAll()`
`boolean`	`isTraceAnalyticsEnabled()`
`boolean`	`isProfilingEnabled()`
`boolean`	`isProfilingStartForceFirst()`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getRuntimeId
```
 String getRuntimeId()
```

getSite
```
 String getSite()
```

getServiceName
```
 String getServiceName()
```

getWriterType
```
 String getWriterType()
```

getAgentHost
```
 String getAgentHost()
```

getAgentPort
```
 int getAgentPort()
```

getAgentUnixDomainSocket
```
 String getAgentUnixDomainSocket()
```

getServiceMapping

 Map<String, String> getServiceMapping()

getExcludedClasses
```
 List<String> getExcludedClasses()
```

getHeaderTags
```
 Map<String, String> getHeaderTags()
```

getHttpServerErrorStatuses

 Set<Integer> getHttpServerErrorStatuses()

getHttpClientErrorStatuses

 Set<Integer> getHttpClientErrorStatuses()

getSplitByTags
```
 Set<String> getSplitByTags()
```

getScopeDepthLimit
```
 Integer getScopeDepthLimit()
```

getPartialFlushMinSpans
```
 Integer getPartialFlushMinSpans()
```

getPropagationStylesToExtract

 Set<Config.PropagationStyle> getPropagationStylesToExtract()

getPropagationStylesToInject

 Set<Config.PropagationStyle> getPropagationStylesToInject()

getJmxFetchConfigDir
```
 String getJmxFetchConfigDir()
```

getJmxFetchConfigs
```
 List<String> getJmxFetchConfigs()
```

getJmxFetchMetricsConfigs

 List<String> getJmxFetchMetricsConfigs()

getJmxFetchCheckPeriod
```
 Integer getJmxFetchCheckPeriod()
```

getJmxFetchRefreshBeansPeriod

 Integer getJmxFetchRefreshBeansPeriod()

getJmxFetchStatsdHost
```
 String getJmxFetchStatsdHost()
```

getJmxFetchStatsdPort
```
 Integer getJmxFetchStatsdPort()
```

getHealthMetricsStatsdHost
```
 String getHealthMetricsStatsdHost()
```

getHealthMetricsStatsdPort
```
 Integer getHealthMetricsStatsdPort()
```

getTraceAnnotations
```
 String getTraceAnnotations()
```

getTraceMethods
```
 String getTraceMethods()
```

getTraceExecutors
```
 List<String> getTraceExecutors()
```

getTraceSamplingServiceRules

 Map<String, String> getTraceSamplingServiceRules()

getTraceSamplingOperationRules

 Map<String, String> getTraceSamplingOperationRules()

getTraceSampleRate
```
 Double getTraceSampleRate()
```

getTraceRateLimit
```
 Double getTraceRateLimit()
```

getProfilingStartDelay
```
 int getProfilingStartDelay()
```

getProfilingUploadPeriod
```
 int getProfilingUploadPeriod()
```

getProfilingTemplateOverrideFile

 String getProfilingTemplateOverrideFile()

getProfilingUploadTimeout
```
 int getProfilingUploadTimeout()
```

getProfilingUploadCompression
```
 String getProfilingUploadCompression()
```

getProfilingProxyHost
```
 String getProfilingProxyHost()
```

getProfilingProxyPort
```
 int getProfilingProxyPort()
```

getProfilingProxyUsername
```
 String getProfilingProxyUsername()
```

getProfilingProxyPassword
```
 String getProfilingProxyPassword()
```

getProfilingExceptionSampleLimit
```
 int getProfilingExceptionSampleLimit()
```

getProfilingExceptionHistogramTopItems

 int getProfilingExceptionHistogramTopItems()

getProfilingExceptionHistogramMaxCollectionSize

 int getProfilingExceptionHistogramMaxCollectionSize()

getLocalRootSpanTags

 Map<String, String> getLocalRootSpanTags()

getMergedSpanTags

 Map<String, String> getMergedSpanTags()

getMergedJmxTags
```
 Map<String, String> getMergedJmxTags()
```

getMergedProfilingTags

 Map<String, String> getMergedProfilingTags()

getInstrumentationAnalyticsSampleRate
```
 float getInstrumentationAnalyticsSampleRate(Array<String> aliases)
```
Returns the sample rate for the specified instrumentation or if none specified.

getFinalProfilingUrl
```
 String getFinalProfilingUrl()
```

isIntegrationEnabled

 boolean isIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)

isJmxFetchIntegrationEnabled

 boolean isJmxFetchIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)

isRuleEnabled
```
 boolean isRuleEnabled(String name)
```

jmxFetchIntegrationEnabled

@Deprecated() static boolean jmxFetchIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)

isTraceAnalyticsIntegrationEnabled

 boolean isTraceAnalyticsIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)

traceAnalyticsIntegrationEnabled

@Deprecated() static boolean traceAnalyticsIntegrationEnabled(SortedSet<String> integrationNames, boolean defaultEnabled)

getSettingFromEnvironment
```
@Deprecated() static String getSettingFromEnvironment(String name, String defaultValue)
```
Helper method that takes the name, adds a "dd." prefix then checks for System Properties ofthat name. If none found, the name is converted to an Environment Variable and used to checkthe env. If none of the above returns a value, then an optional properties file if checked. Ifsetting is not configured in either location, defaultValue is returned.

getBooleanSettingFromEnvironment

@Deprecated() static Boolean getBooleanSettingFromEnvironment(String name, Boolean defaultValue)

Calls getSettingFromEnvironment and converts the result to a Boolean.

getFloatSettingFromEnvironment

@Deprecated() static Float getFloatSettingFromEnvironment(String name, Float defaultValue)

Calls getSettingFromEnvironment and converts the result to a Float.

get
```
 static Config get()
```

get

 static Config get(Properties properties)

isTraceEnabled
```
 boolean isTraceEnabled()
```

isIntegrationsEnabled
```
 boolean isIntegrationsEnabled()
```

isPrioritySamplingEnabled
```
 boolean isPrioritySamplingEnabled()
```

isTraceResolverEnabled
```
 boolean isTraceResolverEnabled()
```

isHttpServerTagQueryString
```
 boolean isHttpServerTagQueryString()
```

isHttpClientTagQueryString
```
 boolean isHttpClientTagQueryString()
```

isHttpClientSplitByDomain
```
 boolean isHttpClientSplitByDomain()
```

isDbClientSplitByInstance
```
 boolean isDbClientSplitByInstance()
```

isRuntimeContextFieldInjection

 boolean isRuntimeContextFieldInjection()

isJmxFetchEnabled
```
 boolean isJmxFetchEnabled()
```

isHealthMetricsEnabled
```
 boolean isHealthMetricsEnabled()
```

isLogsInjectionEnabled
```
 boolean isLogsInjectionEnabled()
```

isReportHostName
```
 boolean isReportHostName()
```

isTraceExecutorsAll
```
 boolean isTraceExecutorsAll()
```

isTraceAnalyticsEnabled
```
 boolean isTraceAnalyticsEnabled()
```

isProfilingEnabled
```
 boolean isProfilingEnabled()
```

isProfilingStartForceFirst
```
 boolean isProfilingStartForceFirst()
```

toString
```
 String toString()
```

Class Config

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getRuntimeId

getSite

getServiceName

getWriterType

getAgentHost

getAgentPort

getAgentUnixDomainSocket

getServiceMapping

getExcludedClasses

getHeaderTags

getHttpServerErrorStatuses

getHttpClientErrorStatuses

getSplitByTags

getScopeDepthLimit

getPartialFlushMinSpans

getPropagationStylesToExtract

getPropagationStylesToInject

getJmxFetchConfigDir

getJmxFetchConfigs

getJmxFetchMetricsConfigs

getJmxFetchCheckPeriod

getJmxFetchRefreshBeansPeriod

getJmxFetchStatsdHost

getJmxFetchStatsdPort

getHealthMetricsStatsdHost

getHealthMetricsStatsdPort

getTraceAnnotations

getTraceMethods

getTraceExecutors

getTraceSamplingServiceRules

getTraceSamplingOperationRules

getTraceSampleRate

getTraceRateLimit

getProfilingStartDelay

getProfilingUploadPeriod

getProfilingTemplateOverrideFile

getProfilingUploadTimeout

getProfilingUploadCompression

getProfilingProxyHost

getProfilingProxyPort

getProfilingProxyUsername

getProfilingProxyPassword

getProfilingExceptionSampleLimit

getProfilingExceptionHistogramTopItems

getProfilingExceptionHistogramMaxCollectionSize

getLocalRootSpanTags

getMergedSpanTags

getMergedJmxTags

getMergedProfilingTags

getInstrumentationAnalyticsSampleRate

getFinalProfilingUrl

isIntegrationEnabled

isJmxFetchIntegrationEnabled

isRuleEnabled

jmxFetchIntegrationEnabled

isTraceAnalyticsIntegrationEnabled

traceAnalyticsIntegrationEnabled

getSettingFromEnvironment

getBooleanSettingFromEnvironment

getFloatSettingFromEnvironment

get

get

isTraceEnabled

isIntegrationsEnabled

isPrioritySamplingEnabled

isTraceResolverEnabled

isHttpServerTagQueryString

isHttpClientTagQueryString

isHttpClientSplitByDomain

isDbClientSplitByInstance

isRuntimeContextFieldInjection

isJmxFetchEnabled

isHealthMetricsEnabled

isLogsInjectionEnabled