com.hazelcast.internal.serialization.impl

Class SerializationUtil

java.lang.Object

com.hazelcast.internal.serialization.impl.SerializationUtil

public final class SerializationUtil
extends Object

Method Summary

Modifier and Type	Method and Description
static InputStream	convertToInputStream(DataInput in, int offset)
static ObjectDataInputStream	createObjectDataInputStream(InputStream in, InternalSerializationService ss)
static ObjectDataOutputStream	createObjectDataOutputStream(OutputStream out, InternalSerializationService ss)
static int	getPortableVersion(Portable portable, int defaultVersion)
static <T> Collection<T>	readCollection(ObjectDataInput in) Reads a collection from the given ObjectDataInput.
static <K,V> Map<K,V>	readMap(ObjectDataInput in)
static <T> List<T>	readNullableList(ObjectDataInput in) Read a list written by writeNullableList(List, ObjectDataOutput) It does not guarantee to use the same implementation of a list as was written into the stream.
static <K,V> Map<K,V>	readNullableMap(ObjectDataInput in) Reads a map written by writeNullableMap(Map, ObjectDataOutput).
static <T> void	writeCollection(Collection<T> items, ObjectDataOutput out) Writes a collection to an ObjectDataOutput.
static <K,V> void	writeMap(Map<K,V> map, ObjectDataOutput out)
static <T> void	writeNullableList(List<T> list, ObjectDataOutput out) Write items from a list into a ObjectDataOutput.
static <K,V> void	writeNullableMap(Map<K,V> map, ObjectDataOutput out) Writes a map to given ObjectDataOutput.

Methods inherited from class java.lang.Object

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

Method Detail

getPortableVersion

public static int getPortableVersion(Portable portable,
                                     int defaultVersion)

createObjectDataOutputStream

public static ObjectDataOutputStream createObjectDataOutputStream(OutputStream out,
                                                                  InternalSerializationService ss)

createObjectDataInputStream

public static ObjectDataInputStream createObjectDataInputStream(InputStream in,
                                                                InternalSerializationService ss)

convertToInputStream

public static InputStream convertToInputStream(DataInput in,
                                               int offset)

writeNullableList

public static <T> void writeNullableList(List<T> list,
                                         ObjectDataOutput out)
                                  throws IOException

Write items from a list into a ObjectDataOutput. The list can be null. It has to be deserialized via readNullableList(ObjectDataInput)

Type Parameters:

T - type of the list

Parameters:

list - list to write into the output

out - the output to use

Throws:

IOException

readNullableList

public static <T> List<T> readNullableList(ObjectDataInput in)
                                    throws IOException

Read a list written by writeNullableList(List, ObjectDataOutput) It does not guarantee to use the same implementation of a list as was written into the stream.

Type Parameters:

T - type of items

Parameters:

in - data input to read from

Returns:

list with all items or null

Throws:

IOException

writeNullableMap

public static <K,V> void writeNullableMap(Map<K,V> map,
                                          ObjectDataOutput out)
                                   throws IOException

Writes a map to given ObjectDataOutput.

Parameters:

map - the map to serialize, can be null

out - the output to write the map to

Throws:

IOException

writeMap

public static <K,V> void writeMap(@Nonnull
                                  Map<K,V> map,
                                  ObjectDataOutput out)
                           throws IOException

Throws:

IOException

readNullableMap

public static <K,V> Map<K,V> readNullableMap(ObjectDataInput in)
                                      throws IOException

Reads a map written by writeNullableMap(Map, ObjectDataOutput). The map itself may be null. No guarantee is provided about the type of Map returned or its suitability to be used in a thread-safe manner.

Type Parameters:

K - type of key class

V - type of value class

Parameters:

in - the ObjectDataInput input to read from

Returns:

a Map containing the keys & values read from the input or null if the original serialized map was null

Throws:

IOException - when an error occurs while reading from the input

readMap

@Nonnull
public static <K,V> Map<K,V> readMap(ObjectDataInput in)
                                       throws IOException

Throws:

IOException

writeCollection

public static <T> void writeCollection(Collection<T> items,
                                       ObjectDataOutput out)
                                throws IOException

Writes a collection to an ObjectDataOutput. The collection's size is written to the data output, then each object in the collection is serialized.

Type Parameters:

T - type of items

Parameters:

items - collection of items to be serialized

out - data output to write to

Throws:

NullPointerException - if items or out is null

IOException

readCollection

public static <T> Collection<T> readCollection(ObjectDataInput in)
                                        throws IOException

Reads a collection from the given ObjectDataInput. It is expected that the next int read from the data input is the collection's size, then that many objects are read from the data input and returned as a collection.

Type Parameters:

T - type of items

Parameters:

in - data input to read from

Returns:

collection of items read from data input

Throws:

IOException