org.continuity.commons.storage

Class JsonFileStorage<T>

java.lang.Object

org.continuity.commons.storage.FileStorage<T>

org.continuity.commons.storage.JsonFileStorage<T>

All Implemented Interfaces:

ArtifactStorage<T>

public class JsonFileStorage<T>
extends FileStorage<T>
implements ArtifactStorage<T>

Constructor Summary

Constructors

Constructor and Description
JsonFileStorage(java.nio.file.Path storagePath, T emptyEntity)
JsonFileStorage(java.nio.file.Path storagePath, T emptyEntity, java.lang.Class<T> entityType)

Method Summary

Modifier and Type	Method and Description
protected T	read(java.nio.file.Path dirPath, java.lang.String id) Reads an artifact.
protected boolean	remove(java.nio.file.Path dirPath, java.lang.String id) Removes an artifact.
protected void	write(java.nio.file.Path dirPath, java.lang.String id, T entity) Writes the artifacts to the file system.

Methods inherited from class org.continuity.commons.storage.FileStorage

get, getTagForId, put, putToReserved, remove, reserve

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.continuity.commons.storage.ArtifactStorage

get, getTagForId, put, putToReserved, remove, reserve

Constructor Detail

JsonFileStorage

public JsonFileStorage(java.nio.file.Path storagePath,
                       T emptyEntity,
                       java.lang.Class<T> entityType)

JsonFileStorage

public JsonFileStorage(java.nio.file.Path storagePath,
                       T emptyEntity)

Method Detail

write

protected void write(java.nio.file.Path dirPath,
                     java.lang.String id,
                     T entity)
              throws java.io.IOException

Description copied from class: FileStorage

Writes the artifacts to the file system. Implementations should store files or directories that start with the passed IDs.

Specified by:

write in class FileStorage<T>

Parameters:

dirPath - The directory in which the artifact should be stored.

id - The ID of the artifact.

entity - The artifact to be stored.

Throws:

java.io.IOException - If writing fails.

read

protected T read(java.nio.file.Path dirPath,
                 java.lang.String id)
          throws java.io.IOException

Description copied from class: FileStorage

Reads an artifact.

Specified by:

read in class FileStorage<T>

Returns:

Throws:

java.io.IOException

remove

protected boolean remove(java.nio.file.Path dirPath,
                         java.lang.String id)

Description copied from class: FileStorage

Removes an artifact.

Specified by:

remove in class FileStorage<T>

Returns:

true if the artifact existed and was removed successfully.