Package org.elasticsearch.gateway

Class MetaStateWriterUtils

java.lang.Object

org.elasticsearch.gateway.MetaStateWriterUtils

public class MetaStateWriterUtils
extends Object

Maintains the method of writing cluster states to disk for versions prior to Version.V_7_6_0, preserved to test the classes that read this state during an upgrade from these older versions.

Method Summary

Modifier and Type	Method	Description
static long	writeIndex(NodeEnvironment nodeEnv, String reason, IndexMetadata indexMetadata)	Writes the index state.
static void	writeManifestAndCleanup(NodeEnvironment nodeEnv, String reason, Manifest manifest)	Writes manifest file (represented by Manifest) to disk and performs cleanup of old manifest state file if the write succeeds or newly created manifest state if the write fails.

Methods inherited from class java.lang.Object

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

Method Details

writeManifestAndCleanup

public static void writeManifestAndCleanup(NodeEnvironment nodeEnv,
 String reason,
 Manifest manifest)
                                    throws WriteStateException

Writes manifest file (represented by Manifest) to disk and performs cleanup of old manifest state file if the write succeeds or newly created manifest state if the write fails.

Throws:

WriteStateException - if exception when writing state occurs. See also WriteStateException.isDirty()

writeIndex

public static long writeIndex(NodeEnvironment nodeEnv,
 String reason,
 IndexMetadata indexMetadata)
                       throws WriteStateException

Writes the index state.

This method is public for testing purposes.

Throws:

WriteStateException - if exception when writing state occurs. WriteStateException.isDirty() will always return false, because new index state file is not yet referenced by manifest file.