org.imixs.archive.core.cassandra

Class ArchiveClientService

java.lang.Object

org.imixs.archive.core.cassandra.ArchiveClientService

public class ArchiveClientService
extends Object

The ArchiveHandler pushes a Snapshot into the cassandra archive. The service uses an asyncronious mechansim based on the Imixs EventLog.

The service connects to the Imixs-Archive Service by a Rest Client to push and read data.

Author:

rsoika

Constructor Summary

Constructors

Constructor and Description
ArchiveClientService()

Method Summary

Modifier and Type	Method and Description
org.imixs.melman.DocumentClient	initWorkflowClient() Helper method to initalize a Melman Workflow Client based on the current archive configuration.
byte[]	loadFileFromArchive(org.imixs.workflow.FileData fileData) This method loads the file content for a given md5 checksum directly from the cassandra archive using the resource /archive/md5/{md5} To activate this mechansim the environment variable ARCHIVE_SERVICE_ENDPOINT must be set to a valid endpoint.
void	pushSnapshot(org.imixs.workflow.engine.jpa.EventLog eventLogEntry) Thie method lookups the event log entries and pushes new snapshots into the archvie service.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArchiveClientService

public ArchiveClientService()

Method Detail

pushSnapshot

public void pushSnapshot(org.imixs.workflow.engine.jpa.EventLog eventLogEntry)

Thie method lookups the event log entries and pushes new snapshots into the archvie service.

The method returns a AsyncResult to indicate the completion of the push. A client can use this information for further control.

Throws:

ArchiveException

loadFileFromArchive

public byte[] loadFileFromArchive(org.imixs.workflow.FileData fileData)
                           throws org.imixs.melman.RestAPIException

This method loads the file content for a given md5 checksum directly from the cassandra archive using the resource

/archive/md5/{md5}

To activate this mechansim the environment variable ARCHIVE_SERVICE_ENDPOINT must be set to a valid endpoint.

Parameters:

fileData - - fileData object providing the MD5 checksum

Throws:

org.imixs.melman.RestAPIException

initWorkflowClient

public org.imixs.melman.DocumentClient initWorkflowClient()

Helper method to initalize a Melman Workflow Client based on the current archive configuration.