com.esotericsoftware.kryo.serializers.DefaultArraySerializers Maven / Gradle / Ivy
package com.esotericsoftware.kryo.serializers;
import java.lang.reflect.Array;
import java.lang.reflect.Modifier;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import static com.esotericsoftware.kryo.Kryo.*;
/** Contains many serializer classes for specific array types that are provided by {@link Kryo#addDefaultSerializer(Class, Class)
* default}.
* @author Nathan Sweet */
public class DefaultArraySerializers {
static public class ByteArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, byte[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
output.writeBytes(object);
}
public byte[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
return input.readBytes(length - 1);
}
public byte[] copy (Kryo kryo, byte[] original) {
byte[] copy = new byte[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class IntArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, int[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeInt(object[i], false);
}
public int[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
int[] array = new int[--length];
for (int i = 0; i < length; i++)
array[i] = input.readInt(false);
return array;
}
public int[] copy (Kryo kryo, int[] original) {
int[] copy = new int[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class FloatArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, float[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeFloat(object[i]);
}
public float[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
float[] array = new float[--length];
for (int i = 0; i < length; i++)
array[i] = input.readFloat();
return array;
}
public float[] copy (Kryo kryo, float[] original) {
float[] copy = new float[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class LongArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, long[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeLong(object[i], false);
}
public long[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
long[] array = new long[--length];
for (int i = 0; i < length; i++)
array[i] = input.readLong(false);
return array;
}
public long[] copy (Kryo kryo, long[] original) {
long[] copy = new long[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class ShortArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, short[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeShort(object[i]);
}
public short[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
short[] array = new short[--length];
for (int i = 0; i < length; i++)
array[i] = input.readShort();
return array;
}
public short[] copy (Kryo kryo, short[] original) {
short[] copy = new short[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class CharArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, char[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeChar(object[i]);
}
public char[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
char[] array = new char[--length];
for (int i = 0; i < length; i++)
array[i] = input.readChar();
return array;
}
public char[] copy (Kryo kryo, char[] original) {
char[] copy = new char[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class DoubleArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, double[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeDouble(object[i]);
}
public double[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
double[] array = new double[--length];
for (int i = 0; i < length; i++)
array[i] = input.readDouble();
return array;
}
public double[] copy (Kryo kryo, double[] original) {
double[] copy = new double[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class BooleanArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, boolean[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeBoolean(object[i]);
}
public boolean[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
boolean[] array = new boolean[--length];
for (int i = 0; i < length; i++)
array[i] = input.readBoolean();
return array;
}
public boolean[] copy (Kryo kryo, boolean[] original) {
boolean[] copy = new boolean[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class StringArraySerializer extends Serializer {
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, String[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
for (int i = 0, n = object.length; i < n; i++)
output.writeString(object[i]);
}
public String[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
String[] array = new String[--length];
for (int i = 0; i < length; i++)
array[i] = input.readString();
return array;
}
public String[] copy (Kryo kryo, String[] original) {
String[] copy = new String[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
}
static public class ObjectArraySerializer extends Serializer {
private boolean elementsAreSameType;
private boolean elementsCanBeNull = true;
{
setAcceptsNull(true);
}
public void write (Kryo kryo, Output output, Object[] object) {
if (object == null) {
output.writeByte(NULL);
return;
}
output.writeInt(object.length + 1, true);
Class elementClass = object.getClass().getComponentType();
if (elementsAreSameType || Modifier.isFinal(elementClass.getModifiers())) {
Serializer elementSerializer = kryo.getSerializer(elementClass);
for (int i = 0, n = object.length; i < n; i++) {
if (elementsCanBeNull)
kryo.writeObjectOrNull(output, object[i], elementSerializer);
else
kryo.writeObject(output, object[i], elementSerializer);
}
} else {
for (int i = 0, n = object.length; i < n; i++)
kryo.writeClassAndObject(output, object[i]);
}
}
public Object[] read (Kryo kryo, Input input, Class type) {
int length = input.readInt(true);
if (length == NULL) return null;
Object[] object = (Object[])Array.newInstance(type.getComponentType(), length - 1);
kryo.reference(object);
Class elementClass = object.getClass().getComponentType();
if (elementsAreSameType || Modifier.isFinal(elementClass.getModifiers())) {
Serializer elementSerializer = kryo.getSerializer(elementClass);
for (int i = 0, n = object.length; i < n; i++) {
if (elementsCanBeNull)
object[i] = kryo.readObjectOrNull(input, elementClass, elementSerializer);
else
object[i] = kryo.readObject(input, elementClass, elementSerializer);
}
} else {
for (int i = 0, n = object.length; i < n; i++)
object[i] = kryo.readClassAndObject(input);
}
return object;
}
public Object[] copy (Kryo kryo, Object[] original) {
Object[] copy = new Object[original.length];
System.arraycopy(original, 0, copy, 0, copy.length);
return copy;
}
/** @param elementsCanBeNull False if all elements are not null. This saves 1 byte per element if the array type is final or
* elementsAreSameClassAsType is true. True if it is not known (default). */
public void setElementsCanBeNull (boolean elementsCanBeNull) {
this.elementsCanBeNull = elementsCanBeNull;
}
/** @param elementsAreSameType True if all elements are the same type as the array (ie they don't extend the array type). This
* saves 1 byte per element if the array type is not final. Set to false if the array type is final or elements
* extend the array type (default). */
public void setElementsAreSameType (boolean elementsAreSameType) {
this.elementsAreSameType = elementsAreSameType;
}
}
}
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