Allocation strategy plugins

Overview

note

This extension point allows to define how storage microservice decides which Data storage plugin to use to store a given AIP and its associated files.

REGARDS provides many implementation of this extension point :

• DefaultAllocationStrategyPlugin : Store all AIP files in the data storage with the highter priority
• DefaultMultipleAllocationStrategy : Store all AIP files in the given data storage(s). If many data storages are provided then the file are stored many times.
• PropertyDataStorageMapping : Read into the AIP a property value and then find the data storage mapped to this value in the plugin configuration.

Interface

IAllocationStrategy

Implementation

To learn more about how to create your own plugin see Plugins

Here under is an exemple of how to implements this extension point to create your own business logic.

@Plugin(id = "exemple", version = "1.0.0", description = "exemple plugin",
        author = "REGARDS Team", contact = "regards@c-s.fr", licence = "LGPLv3.0", owner = "CSSI",
        url = "https://github.com/RegardsOss")
public class Plugin implements IAllocationStrategy {

        @Override
        public Multimap<Long, StorageDataFile> dispatch(Collection<StorageDataFile> dataFilesToHandle,
            DispatchErrors dispatchErrors) {
                // return map with key=<data storage plugin id> and value=<StorageDataFile to store>
        }
}