com.netflix.config.sources

Class DynamoDbDeploymentContextTableCache

java.lang.Object

com.netflix.config.sources.AbstractDynamoDbConfigurationSource<PropertyWithDeploymentContext>

com.netflix.config.sources.DynamoDbDeploymentContextTableCache

public class DynamoDbDeploymentContextTableCache
extends AbstractDynamoDbConfigurationSource<PropertyWithDeploymentContext>

User: gorzell Date: 1/17/13 Time: 10:18 AM This leverages some of the semantics of the PollingSource in order to have one place where the full table scan from Dynamo is cached. It is mean to be consumed but a number of DeploymentContext aware sources to keep them from all having to load the table separately.

Field Summary

Fields inherited from class com.netflix.config.sources.AbstractDynamoDbConfigurationSource

dbClient, endpointName, keyAttributeName, maxBackOffMs, maxRetryCount, minBackOffMs, tableName, valueAttributeName

Constructor Summary

Constructors

Constructor and Description
DynamoDbDeploymentContextTableCache()
DynamoDbDeploymentContextTableCache(com.amazonaws.services.dynamodbv2.AmazonDynamoDB dbClient)
DynamoDbDeploymentContextTableCache(com.amazonaws.services.dynamodbv2.AmazonDynamoDB dbClient, int initialDelayMillis, int delayMillis)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials, com.amazonaws.ClientConfiguration clientConfiguration)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials, com.amazonaws.ClientConfiguration clientConfiguration, int initialDelayMillis, int delayMillis)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials, int initialDelayMillis, int delayMillis)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider, com.amazonaws.ClientConfiguration clientConfiguration)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider, com.amazonaws.ClientConfiguration clientConfiguration, int initialDelayMillis, int delayMillis)
DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider, int initialDelayMillis, int delayMillis)
DynamoDbDeploymentContextTableCache(com.amazonaws.ClientConfiguration clientConfiguration)
DynamoDbDeploymentContextTableCache(com.amazonaws.ClientConfiguration clientConfiguration, int initialDelayMillis, int delayMillis)
DynamoDbDeploymentContextTableCache(int initialDelayMillis, int delayMillis)

Method Summary

Modifier and Type	Method and Description
java.util.Collection<PropertyWithDeploymentContext>	getProperties() Get the current values in the cache.
protected java.util.Map<java.lang.String,PropertyWithDeploymentContext>	loadPropertiesFromTable(java.lang.String table) Scan the table in dynamo and create a map with the results.
void	stop() Stop polling the source table

Methods inherited from class com.netflix.config.sources.AbstractDynamoDbConfigurationSource

dbScanWithThroughputBackOff, validateDb

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache()

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(int initialDelayMillis,
                                           int delayMillis)

Parameters:

initialDelayMillis -

delayMillis -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.ClientConfiguration clientConfiguration)

Parameters:

clientConfiguration -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.ClientConfiguration clientConfiguration,
                                           int initialDelayMillis,
                                           int delayMillis)

Parameters:

clientConfiguration -

initialDelayMillis -

delayMillis -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials)

Parameters:

credentials -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials,
                                           int initialDelayMillis,
                                           int delayMillis)

Parameters:

credentials -

initialDelayMillis -

delayMillis -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials,
                                           com.amazonaws.ClientConfiguration clientConfiguration)

Parameters:

credentials -

clientConfiguration -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentials credentials,
                                           com.amazonaws.ClientConfiguration clientConfiguration,
                                           int initialDelayMillis,
                                           int delayMillis)

Parameters:

credentials -

clientConfiguration -

initialDelayMillis -

delayMillis -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider)

Parameters:

credentialsProvider -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider,
                                           int initialDelayMillis,
                                           int delayMillis)

Parameters:

credentialsProvider -

initialDelayMillis -

delayMillis -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider,
                                           com.amazonaws.ClientConfiguration clientConfiguration)

Parameters:

credentialsProvider -

clientConfiguration -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.auth.AWSCredentialsProvider credentialsProvider,
                                           com.amazonaws.ClientConfiguration clientConfiguration,
                                           int initialDelayMillis,
                                           int delayMillis)

Parameters:

credentialsProvider -

clientConfiguration -

initialDelayMillis -

delayMillis -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.services.dynamodbv2.AmazonDynamoDB dbClient)

Parameters:

dbClient -

DynamoDbDeploymentContextTableCache

public DynamoDbDeploymentContextTableCache(com.amazonaws.services.dynamodbv2.AmazonDynamoDB dbClient,
                                           int initialDelayMillis,
                                           int delayMillis)

Parameters:

dbClient -

initialDelayMillis -

delayMillis -

Method Detail

stop

public void stop()

Stop polling the source table

loadPropertiesFromTable

protected java.util.Map<java.lang.String,PropertyWithDeploymentContext> loadPropertiesFromTable(java.lang.String table)

Scan the table in dynamo and create a map with the results. In this case the map has a complex type as the value, so that Deployment Context is taken into account.

Specified by:

loadPropertiesFromTable in class AbstractDynamoDbConfigurationSource<PropertyWithDeploymentContext>

Parameters:

table -

Returns:

getProperties

public java.util.Collection<PropertyWithDeploymentContext> getProperties()

Get the current values in the cache.

Returns: