Package io.bdeploy.bhive.util

Class StorageHelper

java.lang.Object

io.bdeploy.bhive.util.StorageHelper

public class StorageHelper
extends Object

Provides functionality to persist and load model objects from persistent storage.

Methods are required to produce reproducible results per object.

ATTENTION: The underlying implementation may NOT be changed without exact knowledge of the impact. The objects may be hashed and stored in an object database, which means that changing the algorithm will basically break any hive which used the existing algorithm.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	StorageHelper.CustomMapper

Constructor Summary

Constructors

Constructor	Description
StorageHelper()

Method Summary

Modifier and Type	Method	Description
static <T> T	fromPath(Path path, Class<T> clazz)	De-serializes an Object of given type from a given file
static <T> T	fromRawBytes(byte[] bytes, Class<T> clazz)	De-serializes an Object of given type from a byte[].
static <T> T	fromStream(InputStream is, Class<T> clazz)	De-serializes an Object of given type from a stream into memory.
static <T> T	fromYamlStream(InputStream is, Class<T> clazz)	De-serializes an Object of given type from a YAML content stream into memory.
static byte[]	toRawBytes(Object o)	Serializes any in-memory Object to a stable storage-friendly byte[].
static byte[]	toRawYamlBytes(Object o)	Serializes any in-memory Object to a stable storage-friendly YAML style byte[].

Methods inherited from class java.lang.Object

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

Constructor Details

StorageHelper

public StorageHelper()

Method Details

toRawBytes

public static byte[] toRawBytes(Object o)

Serializes any in-memory Object to a stable storage-friendly byte[].

toRawYamlBytes

public static byte[] toRawYamlBytes(Object o)

Serializes any in-memory Object to a stable storage-friendly YAML style byte[].

fromRawBytes

public static <T> T fromRawBytes(byte[] bytes,
 Class<T> clazz)

De-serializes an Object of given type from a byte[].

fromPath

public static <T> T fromPath(Path path,
 Class<T> clazz)

De-serializes an Object of given type from a given file

fromStream

public static <T> T fromStream(InputStream is,
 Class<T> clazz)

De-serializes an Object of given type from a stream into memory.

fromYamlStream

public static <T> T fromYamlStream(InputStream is,
 Class<T> clazz)

De-serializes an Object of given type from a YAML content stream into memory.