org.hawkular.commons.cassandra

Class CassandraYaml.CassandraYamlBuilder

java.lang.Object

org.hawkular.commons.cassandra.CassandraYaml.CassandraYamlBuilder

Enclosing class:

CassandraYaml

public static class CassandraYaml.CassandraYamlBuilder
extends Object

A fluent builder to prepare a cassandra.yaml file.

Method Summary

Modifier and Type	Method and Description
CassandraYaml.CassandraYamlBuilder	baseDir(File baseDir) Set various directories relative to the given baseDir.
CassandraYaml.CassandraYamlBuilder	clusterName(String clusterName)
static org.yaml.snakeyaml.DumperOptions	createDefaultDumperOptions()
CassandraYaml.CassandraYamlBuilder	defaultKeyCacheSize() Sets key_cache_size_in_mb to min(1% of Heap (in MB), 10 MB).
CassandraYaml.CassandraYamlBuilder	defaultNativeTransportMaxThreads() Sets native_transport_max_threads to Math.max(1, Runtime.getRuntime().availableProcessors() / 2)
CassandraYaml.CassandraYamlBuilder	load(File file) Load the config from an existing cassandra.yaml file overriding the pre-existing values in this CassandraYaml.CassandraYamlBuilder.
CassandraYaml.CassandraYamlBuilder	load(InputStream in) Load the config from an existing cassandra.yaml stream overriding the pre-existing values in this CassandraYaml.CassandraYamlBuilder.
CassandraYaml.CassandraYamlBuilder	load(URL url) Load the config from an existing cassandra.yaml URL overriding the pre-existing values in this CassandraYaml.CassandraYamlBuilder.
CassandraYaml.CassandraYamlBuilder	opt(CassandraYaml.CassandraYamlKey key, Object value) Set the given to the given value
CassandraYaml.CassandraYamlBuilder	portOffset(int portOffset) Shift all ports by portOffset
CassandraYaml.StoredCassandraYamlStage	store(File path) Stores the prepared cassandra.yaml file under the given path.
CassandraYaml.CassandraYamlBuilder	triggersDir(File triggersDir) Sets triggersDir to value passed through the parameter triggersDir

Methods inherited from class java.lang.Object

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

Method Detail

createDefaultDumperOptions

public static org.yaml.snakeyaml.DumperOptions createDefaultDumperOptions()

baseDir

public CassandraYaml.CassandraYamlBuilder baseDir(File baseDir)

Set various directories relative to the given baseDir.

Parameters:

baseDir - the directory to use a root for the Cassandra cluster data

Returns:

this CassandraYaml.CassandraYamlBuilder

triggersDir

public CassandraYaml.CassandraYamlBuilder triggersDir(File triggersDir)

Sets triggersDir to value passed through the parameter triggersDir

Parameters:

triggersDir - the path to triggers directory

Returns:

this CassandraYaml.CassandraYamlBuilder

clusterName

public CassandraYaml.CassandraYamlBuilder clusterName(String clusterName)

Parameters:

clusterName - the cluster name to set

Returns:

this CassandraYaml.CassandraYamlBuilder

defaultKeyCacheSize

public CassandraYaml.CassandraYamlBuilder defaultKeyCacheSize()

Sets key_cache_size_in_mb to min(1% of Heap (in MB), 10 MB).

Returns:

this CassandraYaml.CassandraYamlBuilder

defaultNativeTransportMaxThreads

public CassandraYaml.CassandraYamlBuilder defaultNativeTransportMaxThreads()

Sets native_transport_max_threads to Math.max(1, Runtime.getRuntime().availableProcessors() / 2)

Returns:

this CassandraYaml.CassandraYamlBuilder

load

public CassandraYaml.CassandraYamlBuilder load(File file)
                                        throws IOException

Load the config from an existing cassandra.yaml file overriding the pre-existing values in this CassandraYaml.CassandraYamlBuilder.

Parameters:

file - the cassandra.yaml file to load

Returns:

this CassandraYaml.CassandraYamlBuilder

Throws:

IOException

load

public CassandraYaml.CassandraYamlBuilder load(InputStream in)
                                        throws IOException

Load the config from an existing cassandra.yaml stream overriding the pre-existing values in this CassandraYaml.CassandraYamlBuilder.

Parameters:

in - the stream to load

Returns:

this CassandraYaml.CassandraYamlBuilder

Throws:

IOException

load

public CassandraYaml.CassandraYamlBuilder load(URL url)
                                        throws IOException

Load the config from an existing cassandra.yaml URL overriding the pre-existing values in this CassandraYaml.CassandraYamlBuilder.

Parameters:

url - the stream to load

Returns:

this CassandraYaml.CassandraYamlBuilder

Throws:

IOException

opt

public CassandraYaml.CassandraYamlBuilder opt(CassandraYaml.CassandraYamlKey key,
                                              Object value)

Set the given to the given value

Parameters:

key -

value -

Returns:

this CassandraYaml.CassandraYamlBuilder

portOffset

public CassandraYaml.CassandraYamlBuilder portOffset(int portOffset)

Shift all ports by portOffset

Parameters:

portOffset -

Returns:

this CassandraYaml.CassandraYamlBuilder

store

public CassandraYaml.StoredCassandraYamlStage store(File path)
                                             throws IOException

Stores the prepared cassandra.yaml file under the given path.

Parameters:

path - the path where to store the cassandra.yaml file

Returns:

this CassandraYaml.CassandraYamlBuilder

Throws:

IOException