com.graphaware.runtime.config

Class Neo4jConfigBasedRuntimeConfiguration

java.lang.Object

com.graphaware.runtime.config.BaseRuntimeConfiguration

com.graphaware.runtime.config.Neo4jConfigBasedRuntimeConfiguration

All Implemented Interfaces:

RuntimeConfiguration

public final class Neo4jConfigBasedRuntimeConfiguration
extends BaseRuntimeConfiguration

Implementation of RuntimeConfiguration that loads bespoke settings from Neo4j's configuration properties, falling back to default values when overrides aren't available. Intended for internal framework use, mainly for server deployments.

There are three main things configured using this mechanism: the TimingStrategy, the DatabaseWriterType, and the StatsCollector.

For TimingStrategy, there are two choices. The first one is AdaptiveTimingStrategy, configured by using the following settings

     com.graphaware.runtime.timing.strategy=adaptive
     com.graphaware.runtime.timing.delay=2000
     com.graphaware.runtime.timing.maxDelay=5000
     com.graphaware.runtime.timing.minDelay=5
     com.graphaware.runtime.timing.busyThreshold=100
     com.graphaware.runtime.timing.maxSamples=200
     com.graphaware.runtime.timing.maxTime=2000*
 

The above are also the default values, if no configuration is provided. For exact meaning of the values, please refer to the Javadoc of AdaptiveTimingStrategy.

The other option is FixedDelayTimingStrategy, configured by using the following settings

     com.graphaware.runtime.timing.strategy=fixed
     com.graphaware.runtime.timing.delay=200
     com.graphaware.runtime.timing.initialDelay=1000
 

For WritingConfig, there are three choices:

     com.graphaware.runtime.db.writer=default
 

results in a DefaultWriter being constructed.

     com.graphaware.runtime.db.writer=single
     #optional queue size, defaults to 10,000
     com.graphaware.runtime.db.writer.queueSize=10000
 

results in a TxPerTaskWriter being constructed with the configured queue size

     com.graphaware.runtime.db.writer=batch
     #optional queue size, defaults to 10,000
     com.graphaware.runtime.db.writer.queueSize=10000
     #optional batch size, defaults to 1,000
     com.graphaware.runtime.db.writer.batchSize=1000
 

results in a BatchWriter being constructed with the configured queue and batch sizes.

For StatsCollector, GoogleAnalyticsStatsCollector is used by default. For disabling statistics reporting, use

     com.graphaware.runtime.stats.disable=true
 

With this setting in place, NullStatsCollector will be used.

Field Summary

Fields inherited from interface com.graphaware.runtime.config.RuntimeConfiguration

GA_PREFIX, TIMER_MODULES_PROPERTY_PREFIX, TX_MODULES_PROPERTY_PREFIX

Constructor Summary

Constructors

Constructor and Description
Neo4jConfigBasedRuntimeConfiguration(org.neo4j.graphdb.GraphDatabaseService database, org.neo4j.kernel.configuration.Config config) Constructs a new Neo4jConfigBasedRuntimeConfiguration based on the given Neo4j Config.

Method Summary

Methods inherited from class com.graphaware.runtime.config.BaseRuntimeConfiguration

createPrefix, equals, getStatsCollector, getTimingStrategy, getWritingConfig, hashCode, kernelConfig

Methods inherited from class java.lang.Object

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

Constructor Detail

Neo4jConfigBasedRuntimeConfiguration

public Neo4jConfigBasedRuntimeConfiguration(org.neo4j.graphdb.GraphDatabaseService database,
                                            org.neo4j.kernel.configuration.Config config)

Constructs a new Neo4jConfigBasedRuntimeConfiguration based on the given Neo4j Config.

Parameters:

config - The Config containing the settings used to configure the runtime